CN106004076B - The manufacture method of Optical devices and the manufacture device of Optical devices - Google Patents

Abstract

The invention discloses a kind of manufacture method of Optical devices and the manufacture device of Optical devices, the manufacture method of the Optical devices is included relative the first process for being inserted in the one end for being formed at the recess that housing extends along a direction of the one end of the inclined optical component of relative housing, and keep the optical component insert state from one end to the recess while, untill the other end of the recess is inserted in the other end of the optical component, the second process for rotating against the optical component centered on the one end of the optical component.

Description

Optical device manufacturing method and optical device manufacturing device

technical field

The invention relates to a manufacturing method of an optical device and a manufacturing device of the optical device.

Background technique

Japanese Patent No. 5293872 discloses a method of manufacturing a print head. The manufacturing method includes an insertion step of inserting a print head in a direction perpendicular to the one direction of the casing in which a through hole extending in one direction is formed. The distance between the inner surfaces of the through-holes facing each other is widened, and the optical component (lens array) is inserted into the through-holes.

Contents of the invention

Here, when inserting both ends of the optical component into the concave portion of the case at the same time, when the optical When one of the two end portions of the component is caught by the edge of the concave portion or the like, insertion failure may occur such that the entire optical component cannot be inserted into the concave portion.

An object of the present invention is to suppress insertion failure when an optical component is inserted into a concave portion of a case, as compared with a case where both end portions of the optical component are simultaneously inserted into the concave portion of the case.

The present invention is achieved through the following technical solutions: According to the first solution of the present invention, a method for manufacturing an optical device is provided, which includes: a first step, inserting one end of an optical component inclined relative to the housing into the housing one end of the recess extending in one direction; and a second step of maintaining the inserted state of the one end of the optical member into the recess until the other end of the optical member is inserted into the other end of the recess. The optical member is relatively rotated around the one end of the optical member until the one end.

According to the second aspect of the present invention, at least the one end portion of the edge portion along the one direction of the concave portion is chamfered.

According to a third aspect of the present invention, the above-mentioned manufacturing method includes, prior to the first step, an expanding step of making the inside of the recess opposite to the intersecting direction intersecting the one direction of the housing The recesses are extended such that the intervals of the surfaces are longer in the entire one direction than the length of the optical member in the above-mentioned orthogonal direction.

According to a fourth aspect of the present invention, the above-mentioned manufacturing method includes a pressing step, and a positioning portion is formed in the concave portion of the housing, and the positioning portion is in contact with at least both ends of the optical component to hold the optical component The component is positioned relative to the housing along its insertion direction, and the pressing process includes: after the second process, pressing the optical component to the positioning portion.

According to a fifth aspect of the present invention, the optical device includes: a holding mechanism that holds a housing formed with a concave portion extending in one direction; and an insertion mechanism that is tilted relative to the housing. Supporting the optical member so that one end of the optical member is relatively inserted into the one end of the recess, and while maintaining the insertion state of the one end of the optical member into the recess, the one end of the optical member is The center relatively rotates the optical component to insert the other end of the optical component into the other end of the recess.

According to a sixth aspect of the present invention, the optical device includes an expansion mechanism that makes the distance between the inner surfaces of the concave portion facing the one direction intersecting with the one direction of the housing extend over the entire one direction. The concave portion is extended upwardly so as to be longer than the length of the optical member in the above-mentioned orthogonal direction.

According to a seventh aspect of the present invention, the optical device includes a pressing mechanism, and a positioning portion is formed in the concave portion of the housing, and the positioning portion is in contact with at least both ends of the optical component to hold the optical component. The component is positioned relative to the housing along its insertion direction, and the pressing mechanism presses the optical component against the positioning portion.

Compared with prior art, the beneficial effect of the present invention is:

According to the above-mentioned first aspect, compared with the case where both end portions of the optical component are simultaneously inserted into the concave portion of the housing, insertion failure when the optical component is inserted into the concave portion of the housing can be suppressed.

According to the above-mentioned second aspect, compared with the case of using a case not formed with chamfers, it is possible to suppress insertion failure when the optical component is inserted into the concave portion of the case.

According to the above-mentioned third aspect, compared with the case of inserting the optical component into the concave portion of the housing in which the concave portion is not expanded, insertion failure when the optical component is inserted into the concave portion of the housing can be suppressed.

According to the above-mentioned fourth aspect, compared with the case where the optical member is rotated and pressed against the positioning portion in the second step, non-contact between the optical member and the positioning portion can be suppressed.

According to the above-mentioned fifth aspect, compared with the case where both end portions of the optical component are simultaneously inserted into the concave portion of the housing, it is possible to suppress insertion failure when the optical component is inserted into the concave portion of the housing.

According to the sixth aspect described above, compared with the case of inserting the optical component into the concave portion of the housing in which the concave portion is not expanded, insertion failure when the optical component is inserted into the concave portion of the housing can be suppressed.

According to the seventh aspect, compared with the case where the optical member is rotated by the insertion mechanism and pressed against the positioning portion, it is possible to prevent the optical member from being in contact with the positioning portion.

Description of drawings

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram showing the structure of an image forming apparatus according to the present exemplary embodiment;

FIG. 2 is an exploded perspective view showing the structure of a print head according to the present exemplary embodiment;

FIG. 3 is a plan view showing the structure of a print head according to the present exemplary embodiment;

Fig. 4 is the 4-4 line sectional view of Fig. 3;

Fig. 5 is the 5-5 line sectional view of Fig. 3;

FIG. 6 is a schematic diagram showing the structure of the print head manufacturing apparatus according to the present exemplary embodiment;

FIG. 7 is a schematic perspective view showing the structure of a holding mechanism according to this exemplary embodiment;

FIG. 8 is a perspective view showing a pressing part of the holding mechanism according to the present exemplary embodiment;

FIG. 9 is a side view showing the structure of the chuck according to the present exemplary embodiment;

FIG. 10 is an explanatory diagram showing a state in which the housing of the print head according to the present exemplary embodiment is expanded to insert the lens array;

FIG. 11 is an explanatory diagram showing a state where the lens array is tilted with respect to the housing.

FIG. 12 is an explanatory view showing a state where one longitudinal end portion of the lens array is inserted into the housing.

FIG. 13 is an explanatory diagram showing a state in which both ends in the longitudinal direction of the lens array are inserted into the housing.

FIG. 14 is an explanatory view showing a state in which the lens array is pressed against the bottom plate.

FIG. 15 is an explanatory view showing a state in which an adhesive is applied to the entire housing and lens array.

FIG. 16 is an explanatory view showing a board mounting step of mounting a printed wiring board to a housing.

Fig. 17 is a front view showing a modified example of the expanding mechanism.

Fig. 18 is a side view showing a modified example of the expanding mechanism.

Detailed ways

Hereinafter, an example of an exemplary embodiment according to the present invention will be described based on the drawings. Next, the image forming apparatus 10 , the print head 20 (an example of an optical device), the manufacturing apparatus 50 of the print head 20 , and the method of manufacturing the print head 20 will be described.

In addition, the X direction, -X direction, Y direction, -Y direction, Z direction, and -Z direction used in the following description are the arrow direction shown in a figure. The X direction (-X direction), the Y direction (-Y direction), and the Z direction (-Z direction) intersect each other (specifically, are perpendicular to each other). In addition, these directions are directions set for convenience of description, and therefore the device configuration is not limited to these directions.

In addition, the symbols with "x" described in "○" in the figure represent arrows facing inward from the paper. The symbols marked with "·" in "○" in the figure represent arrows pointing outward from the paper.

<Image forming apparatus 10>

An image forming apparatus 10 having a print head 20 as an exposure device is shown in FIG. 1 . As shown in FIG. 1 , the image forming apparatus 10 includes, for example, a rotatably disposed cylindrical photoreceptor 11 , a charge roller 12 , a print head 20 , a developer 14 , a transfer roller 16 , and a cleaning blade 18 .

The charge roller 12 is applied with a voltage from a power source (not shown), and charges the outer peripheral surface of the photoreceptor 11 by a potential difference with the photoreceptor 11 . The print head 20 exposes the outer peripheral surface of the photoreceptor 11 based on the image information. Thus, a latent image is formed on the outer peripheral surface of the photoreceptor 11 . Then, the developing device 14 develops the latent image with toner (not shown), thereby forming a toner image on the peripheral surface of the photoreceptor 11 .

The toner image on the outer peripheral surface of the photoreceptor 11 is transferred onto the recording paper P by a potential difference between the photoreceptor 11 and the transfer roller 16 . Also, the toner image of the recording paper P is fixed on the recording paper P by a fixing device (not shown). On the other hand, the toner remaining on the outer peripheral surface of the photoreceptor 11 after transfer is removed by the cleaning blade 18 .

＜Print head 20＞

As shown in FIG. 2 , the printhead 20 includes a printed wiring board 24 as a substrate, a lens array 26 (an example of an optical component), and a case 28 on which the printed wiring board 24 and the lens array 26 are mounted.

[Printed Wiring Board]

As shown in FIG. 2 , the printed wiring board 24 is formed in a rectangular shape, wherein the X direction is defined as a lateral direction, the Y direction is defined as a vertical direction, and the Z direction is defined as a thickness direction. Also, on the surface of the printed wiring board 24 on the Z direction side, a plurality of LED (Light Emitting Diode) arrays 22 (Light Emitting Diode Arrays) as light emitting elements are mounted in a zigzag manner.

On the surface of the LED array 22 on the Z-direction side, a plurality of (for example, 128) light-emitting diodes (LEDs) arranged in a straight line are formed. Also, on the surface of the printed wiring board 24 on the −Z direction side, electronic components 23 for controlling light emission of the LED array 22 are mounted (see FIG. 4(B) ). Here, let the width of the printed wiring board 24 in the X direction be L2.

In addition, the LED arrays 22 shown in the drawing are shown in numbers different from the actual number.

[lens array 26]

As shown in FIG. 2 , the lens array 26 is formed in a rectangular parallelepiped shape, wherein the X direction is defined as the horizontal direction, the Y direction is defined as the vertical direction, and the Z direction is defined as the height direction. Also, on the lens array 26, a plurality of rod lenses 27 through which light emitted from light-emitting points (not shown) of the respective LED arrays 22 each transmit is arranged in a staggered manner. Thus, the light emitted from the light-emitting point of the LED array 22 and transmitted through the rod lens 27 is imaged on the photoreceptor 11 (see FIG. 1 ). Here, the width of the X direction of the lens array 26 is set to L1 (<L2).

In addition, in the lens array 26 shown in the figure, the number of rod lenses 27 is shown with a number smaller than actual number. In addition, in FIG. 2 , in order to clearly show the rod lenses 27 , the number of the rod lenses 27 shown in FIG. 3 is reduced.

[case]

The casing 28 is formed of a resin material (for example, liquid crystal polymer), and, as shown in FIG. 2 , is provided in a substantially rectangular parallelepiped shape whose outer shape extends in the Y direction. In addition, a rectangular parallelepiped protruding portion 35 that protrudes toward the Y direction side is formed at an end portion in the Y direction of the housing 28 . Furthermore, a rectangular parallelepiped protruding portion 36 that protrudes toward the −Y direction side is formed at the −Y direction end portion of the housing 28 . The protruding portion 35 and the protruding portion 36 are used to position the print head 20 on the image forming apparatus 10 .

A hole 30 (space) extending in the Y direction (an example of one direction) and penetrating in the Z direction at the center side in the Y direction is formed in the casing 28 . In addition, the holes 30 are not penetrated at both ends in the Y direction by a bottom plate portion 31 described later (see FIG. 5(A) showing a cross section at the ends in the Y direction of the housing 28 ).

As shown in FIG. 4(A), the hole 30 has a concave portion 30A, a concave portion 30C, and a space portion 30B, wherein the concave portion 30A is opened in the Z direction, the concave portion 30C is opened in the −Z direction, and the space portion 30B is connected to the concave portion at the center side of the Y direction. 30A and recessed portion 30C.

As shown in FIG. 4(B) , the concave portion 30A serves as an insertion portion into which the lens array 26 is inserted. The groove 30C serves as an insertion portion into which the printed wiring board 24 is inserted.

In addition, a portion forming the periphery of the recessed portion 30A on the housing 28 serves as a lens holding portion 28A that holds the lens array 26 . In addition, a portion forming the periphery of the recessed portion 30C on the housing 28 serves as a board holding portion 28B that holds the printed wiring board 24 .

The space|interval of 30 A of recessed part 30A in the center part of a Y direction in a X direction is W1. That is, in the concave portion 30A, the distance between the inner surfaces 28C and 28D of the hole 30 of the housing 28 facing the X direction is W1 at the center in the Y direction. In addition, the interval W1 is shorter than the width L1 of the lens array 26 in the X direction. This is because the case 28 is made of resin and is long in the Y direction, so that the case 28 is bent in a direction in which the center portion inner surfaces 28C, 28D approach in the Y direction.

In addition, as shown in FIGS. 2 and 5 , a bottom plate portion 31 (an example of a positioning portion) is formed on the Y-direction end portion of the concave portion 30A and on the −Z direction side of the −Y-direction end portion. Bottom plate portion 31 contacts the bottom surface (surface on the −Z direction side) of lens array 26 (see FIG. 2 ) inserted into concave portion 30A, thereby positioning lens array 26 in its insertion direction (−Z direction). In addition, the area where the bottom plate portion 31 is formed is an area that is not irradiated with light from the LED array 22 or is not used as an exposure area of the print head 20 even if it is irradiated with light from the LED array 22 . In addition, since the -Y direction end of the housing 28 has the same structure as the Y direction end of the housing 28, only the cross section of the Y direction end of the housing 28 is shown in FIG. 5, and the -Y direction is not shown. direction end.

In addition, a pair of protruding portions 29A (an example of a positioning portion) protruding inwardly in the X direction are formed at the −Z direction end portion of the Y direction central portion of the concave portion 30A. The Z-direction side surfaces of the pair of protruding portions 29A are formed flat, and are arranged on the same plane as the bottom plate portion 31 . A pair of protrusions 29A contacts the bottom surface (surface on the −Z direction side) of lens array 26 (see FIG. 2 ) inserted into recess 30A, thereby positioning lens array 26 in its insertion direction (−Z direction).

The space portion 30B is continuously formed on the −Z direction side of the recessed portion 30A. Part of the Z-direction side of the space portion 30B faces the -Z direction, and the intervals on the inner surfaces in the X-direction gradually increase. Moreover, the recessed part 30C is continuously formed in the -Z direction end part of the space part 30B. In addition, the interval of the inner surface of the housing 28 on the −Z direction side of the space portion 30B is W2 (>W1).

The interval of the inner surface in the X direction on the Z direction side of the recessed portion 30C is W3 (>W2). That is, in the concave portion 30C, the distance between the inner surfaces 28E and 28F of the case 28 facing in the X direction is W3. In addition, the interval W3 is slightly longer than the width L2 of the printed wiring board 24 (see FIG. 2 ) in the X direction. Further, on the −Z direction side of the concave portion 30C, a tapered surface 28G is formed on the inner surface of the housing 28 so as to facilitate insertion of the printed wiring board 24 , and the interval on the inner surface is wider (longer) than the gap W3 .

A stepped portion 29B is formed at a Z-direction end portion of the concave portion 30C with a width corresponding to the dimension of W3-W2. The −Z direction side of the step portion 29B is formed as a flat surface. Thereby, the printed wiring board 24 (see FIG. 2 ) inserted into the concave portion 30C is brought into contact with the stepped portion 29B to be positioned.

As shown in FIGS. 3 and 5 , the Y-direction end and the −Y-direction side end (the portion where the bottom plate 31 is arranged) of the concave portion 30A are widened in the X direction, so that the distance between the opposing inner surfaces in the X direction Become a W4. The size of the interval W4 is, for example, larger than that of the interval W2 (see FIG. 4(A) ), and smaller than that of the interval W3 (see FIG. 4(A) ). The widened portion of the concave portion 30A is filled with a sealant F that seals the gap between the housing 28 and the lens array 26 . For the sealant F, for example, silicone resin is used.

In addition, a filling portion 34 is formed in the lens holding portion 28A, and the filling portion 34 is filled with an adhesive S for fixing the lens array 26 to the lens holding portion 28A. Filling portion 34 is formed in a tapered shape. Furthermore, for example, four filled portions 34 are formed on the Y direction side of the lens holding portion 28A, and four filled portions 34 are formed on the −Y direction side of the lens holding portion 28A.

As shown in FIG. 3 and FIG. 4(A) , chamfers 37 are formed on edge portions along the Y direction of the concave portion 30A. In addition, the chamfer 37 is a part of the space W1 (not including the part of the space W4 ) on the edge, and is formed in a part where the filling part 34 is not formed.

As shown in FIG. 4(B) , in a state where the lens array 26 and the printed wiring board 24 are mounted on the case 28 , the lens array 26 and the LED array 22 of the printed wiring board 24 are formed to face each other.

＜Print head manufacturing equipment＞

FIG. 6 shows a print head manufacturing device 50 (an example of a manufacturing device) for manufacturing the print head 20 . As shown in FIG. 6 , the print head manufacturing device 50 includes a holding mechanism 51 and an insertion mechanism 80, wherein the holding mechanism 51 is used to hold the casing 28, and the insertion mechanism 80 is used to insert the print head 20 into the casing held by the holding mechanism 51. 28.

Furthermore, the print head manufacturing apparatus 50 includes operation buttons (not shown) for operating the respective parts of the holding mechanism 51 and the insertion mechanism 80 and a control section (not shown). Furthermore, the control unit controls the operation of each unit of the print head manufacturing apparatus 50 based on the operation of these operation buttons.

[hold mechanism 51]

A specific structure of the holding mechanism 51 is shown in FIG. 7 . In FIG. 7 , the vertical direction of the holding mechanism 51 is defined as the Z direction, the direction in which manifolds 58A and 58B described later face each other is defined as the X direction, and the positioning blocks 57A and 57B described later are opposed to the movable portion 64A. The direction is set to the Y direction. That is, in the holding mechanism 51 , the direction along the lateral direction of the housing 28 when the housing 28 is held is the X direction, the direction along the longitudinal direction is the Y direction, and the vertical direction is the Z direction. In addition, in FIG. 6 , the holding mechanism 51 is shown in a simplified manner.

The holding mechanism 51 includes, for example, a base 52 serving as a base, a mounting table 54 on which the case 28 is placed, a case positioning portion 56 for positioning the case 28, and a space between the inner surfaces of the case 28 by suction. The suction part 58 (an example of an expansion mechanism) that expands in the lateral direction of the body 28 .

The mounting table 54 is fixed to the base 52 by bolts, and grooves (not shown) matching the dimensions of the lens holding portion 28A and the substrate holding portion 28B are formed on the upper portion of the mounting table 54 . Thus, when the case 28 is placed on the mounting table 54 , either the lens holding portion 28A or the substrate holding portion 28B can be placed thereon. Further, cylindrical positioning pins 55A, 55B, 55C, and 55D with the Z direction as the axial direction and rectangular parallelepiped positioning blocks 57A and 57B are attached to the upper surface of the mounting table 54 .

The positioning pins 55A, 55B are arranged at intervals in the X direction on the −Y direction side of the mounting table 54 , and the positioning pins 55C, 55D are arranged at intervals in the X direction on the Y direction side of the mounting table 54 . Both the distance between the positioning pin 55A and the positioning pin 55B and the distance between the positioning pin 55C and the positioning pin 55D are substantially the same as the dimension of the width of the housing 28 in the X direction.

The positioning blocks 57A, 57B are arranged on the mounting table 54 at a distance from the positioning pins 55A, 55B to the −Y direction side in the X direction. The distance between the positioning blocks 57A and 57B is substantially the same as the dimension (length) of the X-direction width of the protruding portion 36 . In addition, on the Y direction side of the mounting table 54, an air cylinder 64 is provided. In this air cylinder 64, a cylindrical movable portion 64A with the Y direction as the axial direction is formed, and this air cylinder 64 can move in the Y direction, − Move in the Y direction. Moreover, two pressing parts 62 are provided at intervals in the Y direction on the −X direction side of the mounting table 54 .

Case positioning unit 56 is configured to include positioning pins 55A, 55B, 55C, and 55D; positioning blocks 57A, 57B; pressing portion 62 for pressing printed wiring board 24 ; and air cylinder 64 .

As shown in FIG. 8 , the pressing portion 62 includes: support portions 72A, 72B; a shaft portion 74 supported by the support portions 72A, 72B; a movable block 76 ; and a pressing member 78 fixed to the movable block 76 .

The support parts 72A and 72B are fixed to the base 52 at intervals in the Y direction in accordance with the size of the movable block 76 . Moreover, the through-hole 73 which penetrates in the Y direction and inserts the shaft part 74 is formed in support part 72A, 72B. And the shaft part 74 is inserted into the through-hole 73, and is supported by support part 72A, 72B with Y direction as an axial direction.

The movable block 76 is formed in an L-shape when viewed in the -Y direction, and the movable block 76 includes a connecting portion 76A extending in the X direction for connecting the shaft portion 74 and an end portion in the X direction of the connecting portion 76A standing upright in the Z direction. The mounting portion 76B, and the connecting portion 76A is integrally formed with the mounting portion 76B. Further, the movable block 76 can move in an arc shape in the X-Z plane around the shaft portion 74 . In addition, the end portion of the pressing member 78 on the −X direction side is fixed to the upper surface of the attachment portion 76B with screws 77 .

The X-direction side end portion of the plate-shaped member extending in the X-direction of the pressing member 78 has a shape bent into a crank shape when viewed from the X-Z plane. Then, the printed wiring board 24 is pressed toward the −Z direction side at the front end portion 78A on the X direction side of the pressing member 78 .

As shown in FIG. 7 , the suction unit 58 (an example of an expansion mechanism) includes: manifolds 58A, 58B having solenoid valves (not shown); and a suction pump (not shown) that sucks air from the manifolds 58A, 58B. shown); and a plurality of suction pad components 59.

The manifolds 58A and 58B are opposed to each other with a gap in the Y direction across the housing 28 . In addition, the manifolds 58A, 58B are mounted on an automatic stage (not shown), and are movable toward or away from each other in the X direction. In addition, for example, the respective flow paths of the manifolds 58A and 58B are divided into three branches, and the respective three suction pad members 59 are provided at intervals in the Y direction.

The suction pad member 59 includes a tubular portion 59A and a rubber suction pad 59B. The tubular portion 59A protrudes from the manifolds 58A, 58B toward the case 28 in the X direction or the −X direction, and the suction pad 59B is attached to each tubular portion. 59A on the housing 28 side. In addition, the plurality of suction pad members 59 are disposed only at positions facing the Y-direction central portion of the case 28 , and are not provided at positions facing the Y-direction end portions and −Y-direction end portions of the case 28 .

[insert mechanism 80]

As shown in FIG. 6, the insertion mechanism 80 includes chucks 82, 83 (clamping device) and a contact portion 84 (an example of a pressing mechanism), and the chucks 82, 83 clamp one longitudinal end and the other end of the lens array 26 respectively. The contact portion 84 is in contact with the upper surface (surface in the Z direction) of the lens array 26 held by the chucks 82 and 83 .

In addition, the insertion mechanism 80 includes a cylinder 86, a first fixing part 91, and a second fixing part 92, the contact part 84 is fixed on the cylinder 86 via a rod 86B, and the cylinder 86 and the chucks 82, 83 are fixed on the first fixing part. On the part 91 , the first fixing part 91 is fixed on the second fixing part 92 .

In addition, the insertion mechanism 80 also includes a support body 94, a moving mechanism 96, and a lifting device 98. The support body 94 movably supports the second fixed part 92, and the moving mechanism 96 makes the second fixed part 92 move relative to the support body 94, elevating. The device 98 moves the support body 94 up and down.

The first fixing portion 91 is formed in a plate shape, has a length in the Y direction, and has a thickness in the Z direction. The second fixing portion 92 is also formed in a plate shape having a thickness in the X direction. The second fixing portion 92 is fixed to the first fixing portion 91 on the X-direction side of the first fixing portion 91 .

As shown in FIG. 9 , chucks 82 and 83 each have a main body 82A, a pair of movable members 82B protruding downward (-Z direction) from main body 82A, and claws 82C fixed to movable members 82B. In addition, since the chuck 82 and the chuck 83 have the same structure, only the chuck 82 is shown in FIG. 9 , and the chuck 83 is not shown.

As shown in FIG. 6 , the upper end portion (Z direction end portion) of the main body portion 82A of the chuck 82 is fixed to the −Y direction end portion of the first fixing portion 91 . The upper end portion (Z direction end portion) of the main body portion 82A of the chuck 83 is fixed to the Y direction end portion of the first fixing portion 91 .

As shown in FIG. 9 , a pair of movable members 82B of the chucks 82 and 83 are arranged side by side in the X direction. The pair of movable members 82B are opened and closed in the X direction by the drive of the drive portion (not shown) of the main body portion 82A. That is, the pair of movable members 82B moves in a direction to approach each other and a direction to separate from each other (see the arrow A direction).

82 C of claw parts are fixed to each movable member 82B. Chucks 82 and 83 hold one longitudinal end (Y-direction end) and the other end (-Y-direction end) of lens array 26 with pawl 82C by closing operation of movable member 82B.

The contact portion 84 is formed in a plate shape, has a length in the Y direction, and has a thickness in the X direction. The contact portion 84 has a contact surface 84A formed in a flat surface that is in contact with the upper surface (surface on the Z direction side) of the lens array 26 . By bringing the upper surface of the lens array 26 into contact with the contact surface 84A, the lens array 26 is positioned on the contact portion 84 with a predetermined posture.

The X-direction thickness of the contact portion 84 is smaller than the X-direction width of the lens array 26 . Thereby, when the chucks 82 and 83 clamp the lens array 26 with the claw portion 82C, the claw portion 82C and the contact portion 84 do not interfere. In addition, the X-direction thickness of the contact portion 84 may be larger than the X-direction width of the lens array 26 on the longitudinal center side of the portion where the chucks 82 and 83 sandwich the lens array 26 .

The cylinder 86 is driven by air pressure or the like, and, as shown in FIG. 6 , has a main body portion 86A and a rod 86B. The upper end portion (Z direction end portion) of the main body portion 86A of the cylindrical body 86 is fixed to the Y direction center portion (longitudinal center portion) of the first fixing portion 91 . The rod 86B is fixed to the upper portion of the contact portion 84 . By expanding and contracting the rod 86B, the contact part 84 can be independently moved in the vertical direction (-Z, Z direction). That is, the contact portion 84 is movable in the vertical direction (−Z, Z direction) separately from the claw portions 82C of the chucks 82 , 83 by the expansion and contraction of the rod 86B.

The support body 94 is formed in a plate shape and has a thickness in the X direction. The support 94 has a guide 94A (guide portion) centering on the claw portion 82C of the chuck 82 and facing the second fixing portion 92 in a rotation direction that rotates the claw portion 82C of the chuck 83 within a predetermined range. to boot. The support body 94 movably supports the second fixing portion 92 via the guide 94A. The guide 94A is constituted by, for example, a pair of long holes formed along the rotation direction, and the second fixing part 92 is supported by the support body 94 by inserting the pins 92A formed on the second fixing part 92 into the pair of long holes, respectively. In addition, the guide 94A may have other structures.

The moving mechanism 96 moves the second fixing portion 92 along the guide 94A by a driving force of a driving portion (not shown). Specifically, the moving mechanism 96 moves the second fixing portion 92 from the inclined position where the pin 92A abuts against the upper edge of the guide 94A (the position of the pin 92A shown by a dashed-two dotted line) to the position where the pin 92A abuts against the upper edge of the guide 94A. The horizontal position of the edge of the lower side of the guide 94A (the position of the pin 92A shown in solid line).

In the state where the second fixing portion 92 is located at the inclined position, the lens array 26 is in an inclined state with respect to the housing 28 (the state shown in FIGS. 11 and 12 ). Specifically, the −Y direction end of the lens array 26 is in a lowered state with respect to the Y direction end.

In addition, in the state where the second fixing portion 92 is at the horizontal position, the lens array 26 is in a horizontal state (a state in which the longitudinal direction is in the horizontal direction, (the state shown in FIG. 13 )). In addition, the height (position in the Z direction) of the end portion in the −Y direction of the lens array 26 does not change between the inclined position and the horizontal position.

The support body 94 is fixed to the elevating device 98 via the movable part 98A, and is elevated by the elevating device 98 .

<Manufacturing method of print head 20>

The method of manufacturing the print head 20 includes a lens mounting step of mounting the lens array 26 on the case 28 and a substrate mounting step of mounting the printed wiring board 24 on the case 28 .

[lens mounting process]

The lens mounting process includes a positioning process, an expanding process, a lens insertion process, and a lens bonding process.

(positioning process)

In the positioning step, as shown in FIG. 7 , the casing 28 is placed on the mounting table 54 of the holding mechanism 51 . Specifically, the housing 28 is inserted between the positioning pin 55A and the positioning pin 55B, and between the positioning pin 55C and the positioning pin 55D. Thereby, the housing 28 is positioned in the X direction. In addition, in FIG. 7, the board|substrate holding|maintenance part 28B side of the housing|casing 28 is shown as the Z direction side, but here, it is assumed that the lens holding|maintenance part 28A is arrange|positioned at the Z direction side. In addition, positioning of the housing 28 in the Z direction is performed by the operator pressing the housing 28 against the mounting table 54 .

Next, on the mounting table 54 , the protruding portion 36 of the case 28 is inserted between the positioning block 57A and the positioning block 57B. Then, the movable portion 64A is moved in the −Y direction to come into contact with the protruding portion 35 . As a result, the −Y direction end surface of the case 28 excluding the protruding portion 36 is pressed against the side faces of the positioning blocks 57A, 57B on the Y direction side, whereby the case 28 is positioned in the Y direction. In addition, when the lens holding part 28A is arranged on the Z direction side, the pressing part 62 is not used.

Here, as described above, the housing 28 is deflected in the direction in which the inner surfaces 28C, 28D of the center portion in the Y direction approach (see FIG. 10(A) ). That is, in the housing 28 , the X-direction side and the −X-direction side of the central part in the Y direction approach the inside of the hole 30 . Thus, in the housing 28 , the width (interval) in the X direction of the hole 30 on the center portion in the Y direction is narrower than the width in the X direction of the lens array 26 (see FIG. 2 ).

(extended process)

As shown in FIG. 10(A), in the expanding process, the manifolds 58A, 58B (see FIG. 7 ) are brought close to the case 28, and the plurality of suction pads 59B are pressed to the lens holding portion 28A or 28A on the case 28. Its nearby two sides in the X direction. Then, when the operator presses a suction start button (not shown), the control portion (not shown) operates a suction pump (not shown), thereby starting suction via the suction pad 59B. In addition, the control unit moves each of the manifolds 58A, 58B in a direction to separate.

Thereby, as shown in FIG. 10(B), the recessed portion 30A of the housing 28 is expanded in the entire Y direction. In the present exemplary embodiment, specifically, at least a portion (excluding a portion where the bottom plate portion 31 is formed) in the concave portion 30A set as the interval W1 is expanded. Thus, the distance between the inner surfaces 28C and 28D facing each other in the X direction at the center in the Y direction is widened to the distance W5 on one opening end side of the hole 30 (lens holding portion 28A side).

The interval W5 is longer than the interval W1 (see FIG. 4(A) ) at the central portion of the concave portion 30A in the Y direction and the width L1 in the X direction of the lens array 26 (see FIG. 2 ). In addition, the spacing W5 is managed using stops (not shown) that limit the movement of the manifolds 58A, 58B, for example every 0.5[ mm] for widening.

(lens insertion process)

The lens insertion step is a step of inserting the lens array 26 into the concave portion 30A in the expanded state in the expanding step. Specifically, the lens insertion step includes a clamping step, one end insertion step, the other end insertion step, and a pressing step.

(clamping process)

As shown in FIG. 6, in the clamping process, the contact surface 84A of the contact portion 84 is brought into contact with the upper surface of the lens array 26, and in this state, the lens array 26 is clamped by the claws 82C of the chucks 82 and 83, respectively. One end (Y-direction end) and the other end (-Y-direction end) of the vertical direction. At this time, the second fixing portion 92 is in the horizontal position, and the lens array 26 is in the horizontal state (the longitudinal direction is along the horizontal direction).

(One end insertion process)

In the one-end insertion step, the moving mechanism 96 moves the second fixing portion 92 to an inclined position, as shown in FIGS. Specifically, the −Y direction end of the lens array 26 is in a lowered state with respect to the Y direction end.

Next, the supporting body 94 is lowered by the elevating device 98 . Thus, as shown in FIGS. 12(A) and 12(B), one longitudinal end (the −Y direction end) of the lens array 26 is inserted into the longitudinal one end (the −Y direction end) of the concave portion 30A formed in the case 28. department).

(The other end insertion process)

In the other end insertion process, the moving mechanism 96 moves the second fixing portion 92 from the inclined position to the horizontal position. Thereby, as shown in FIG. 13(A), while maintaining the insertion state in which the longitudinal end portion (−Y direction end portion) of the lens array 26 is inserted into the concave portion 30A, until the longitudinal other end portion of the lens array 26 ( Y-direction end portion) is inserted into the other end portion of the concave portion 30A, and the lens array 26 is relatively rotated about the longitudinal one end portion (−Y-direction end portion) of the lens array 26 .

In the other end insertion process, when the operator presses a suction end button (not shown) after inserting the other end portion (Y direction end) of the lens array 26 in the longitudinal direction into the other end portion of the concave portion 30A, the control The pump (not shown) stops the operation of the suction pump (not shown), thereby ending the suction via the suction pad 59B. The manifolds 58A, 58B (see FIG. 7 ) then exit the housing 28 . Thereby, as shown in FIG. 13(B), the lens array 26 is sandwiched by the lens holding portion 28A.

Then, the clamping of the lens array 26 by the chucks 82 and 83 via the claw portions 82c is released.

(pressing process)

In the pressing process, the rod 86B of the cylindrical body 86 is elongated. Thereby, as shown in FIGS. 14(A) and 14(B), the contact portion 84 moves downward (−Z direction), and the lens array 26 is pressed against the pair of protrusions 29A and the bottom plate portion 31 of the housing 28 . Thereby, the lens array 26 is positioned in its insertion direction.

(Lens bonding process)

As shown in FIG. 15 , in the lens bonding process, the operator fills the adhesive S into the filling portion 34 (see FIG. 3 ), and applies the adhesive S to the entire housing 28 and the lens array 26 . In addition, the adhesive S is, for example, an ultraviolet curable acrylic adhesive that is cured by ultraviolet irradiation.

Next, the adhesive S coated on the entire casing 28 and the lens array 26 is irradiated with ultraviolet rays using an ultraviolet irradiation device (not shown), and the adhesive S is cured, so that the casing 28 and the lens array 26 are bonded.

After the adhesive S is cured, the sealant F (see FIGS. 3 and 5(B)) is applied around the lens array 26 by covering the adhesive S and covering the entire lens array 26 and the housing 28 (see FIG. 3 and FIG. 5(B)). along the peripheral portion), the gap between the lens array 26 and the housing 28 is sealed.

In addition, after the lens bonding process is completed, the housing 28 is taken out from the mounting table 54 by moving the movable portion 64A in the Y direction in the holding mechanism 51 as shown in FIG. 7 .

[Board mounting process]

The substrate mounting process is the same as the lens mounting process, and includes a positioning process, an expanding process, a substrate insertion process, and a substrate bonding process.

(positioning process)

As shown in FIG. 7 , in the positioning step, the case 28 is placed on the mounting table 54 with the substrate holding portion 28B of the case 28 on the upper side (the case 28 is turned upside down). The housing 28 is positioned in the X direction by positioning pins 55A, 55B, 55C, and 55D. Then, housing 28 is positioned in the Y direction by moving movable portion 64A in the −Y direction. In addition, positioning of the housing 28 in the Z direction is performed by the operator pressing the housing 28 against the mounting table 54 .

(extended process)

In the expanding process, the manifolds 58A, 58B are brought close to the case 28, and the plurality of suction pads 59B are pressed to both side surfaces in the X direction of the lens holding portion 28A. Then, when the operator presses a suction start button (not shown), a control unit (not shown) operates a suction pump (not shown), thereby starting suction via the suction pad 59B.

Thereby, as shown in FIG. 16(A), the distance between the inner surfaces 28E, 28F facing the X direction of the case 28 is widened on the other opening end side of the hole 30 (the substrate holding portion 28B side).

(board insertion process)

As shown in FIG. 16(A), in the substrate insertion step, the printed wiring substrate 24 is inserted into the hole 30 from the other opening end side (the substrate holding portion 28B side) so that the lens array 26 faces the LED array 22. .

Thereafter, as shown in FIG. 8 , when the movable block 76 is tilted toward the X direction side (near side), the front end portion 78A of the pressing member 78 presses the upper surface (both ends in the Y direction) of the printed wiring board 24 . . Accordingly, it is possible to position the printed wiring board 24 in the Z direction by suppressing warpage in the Z direction and positional displacement in the Z direction of the printed wiring board 24 .

Next, in the print head manufacturing apparatus 50, when the operator presses the suction end button (not shown), the control unit (not shown) stops the operation of the suction pump (not shown), thereby ending the operation of the suction pump (not shown). Suction of pad 59B. The manifolds 58A, 58B then exit the housing 28 . Thereby, as shown in FIG. 16(B), the printed wiring board 24 is sandwiched by the board holding portion 28B.

(Lens bonding process)

In the lens bonding process, the operator applies the adhesive S locally (at predetermined intervals) to the entire case 28 and the printed wiring board 24 .

Next, the adhesive S coated on the entire case 28 and the printed wiring board 24 is irradiated with ultraviolet light using an ultraviolet irradiation device (not shown), and the adhesive S is cured, so that the case 28 and the printed wiring board 24 bonding. In addition, after the adhesive S is cured, a sealant F (see FIG. along the peripheral portion), the gap between the printed wiring board 24 and the case 28 is sealed.

In addition, after the substrate bonding process is completed, in the print head manufacturing apparatus 50 , the movable portion 64A is moved in the Y direction, and the case 28 is taken out from the mounting table 54 . By implementing the above steps, the print head 20 is manufactured. In addition, in the manufactured print head 20 , the hole 30 is closed by the lens array 26 and the printed wiring board 24 , and the inside of the housing 28 is formed with a sealant F to form a closed space. As described above, the print head 20 was manufactured.

<Action of this exemplary embodiment>

In the present exemplary embodiment, as described above, one longitudinal end portion (the −Y direction end portion) of the lens array 26 is first inserted into the concave portion 30A formed in the housing 28, and then the other longitudinal end portion (the −Y direction end portion) of the lens array 26 is inserted. Y-direction end) insertion (refer to one end insertion process, the other end insertion process).

Therefore, unlike the case where both ends of the lens array 26 are inserted into the recess 30A at the same time, the lens array 26 can be inserted into the recess 30A as long as one end on the side where the lens array 26 is inserted does not shift in position relative to the recess 30A. . That is, unlike the case where both end portions of the lens array 26 are simultaneously inserted into the concave portion 30A, it is not necessary to align the both end portions of the lens array 26 with the concave portion 30A.

Therefore, according to the structure of the present exemplary embodiment, compared with the case where both end portions of the lens array 26 are simultaneously inserted into the concave portion 30A, insertion failure when the lens array 26 is inserted into the concave portion 30A can be suppressed.

In addition, in the present exemplary embodiment, as shown in FIGS. 3 and 4(A) , chamfers 37 are formed at edge portions along the Y direction of the concave portion 30A. Therefore, when the lens array 26 is inserted into the recess 30A, even if the lens array 26 deviates from the recess 30A in either the −X or X direction, the lens array 26 is guided to the recess 30A by the chamfer 37 . In addition, the longitudinal end portions of the lens array 26 are not easily caught on the edge portion of the concave portion 30A.

Thereby, compared with the case of using a case in which chamfer 37 is not formed, insertion failure when inserting lens array 26 into recessed portion 30A can be suppressed. In addition, since the lens array 26 is less likely to be caught on the edge of the concave portion 30A, it is possible to prevent the lens array 26 from scratching the housing 28 to generate dust.

In addition, in the present exemplary embodiment, the lens array 26 is inserted into the concave portion 30A in a state where the concave portion 30A is expanded. Therefore, compared with the case where the lens array 26 is inserted into the concave portion 30A in a state where the concave portion 30A is not expanded, insertion failure when the lens array 26 is inserted into the concave portion 30A can be suppressed. In addition, since the lens array 26 is less likely to touch the edge portion of the concave portion 30A, it is possible to prevent the lens array 26 from scratching the case 28 to generate dust.

In addition, in the present exemplary embodiment, the lens array 26 inserted into the concave portion 30A is pressed to the bottom plate portion 31 of the housing 28 by the contact portion 84 (refer to the pressing process). Thereby, the lens array 26 is positioned in its insertion direction. In this way, after inserting both ends of the lens array 26 in the longitudinal direction into the concave portion 30A, the lens array 26 is pressed outside the insertion process. Therefore, the lens array 26 is not in a non-contact state with respect to the bottom plate 31 compared to the case where the lens array 26 is rotated and pressed against the bottom plate portion 31 in the insertion step of the other end. Therefore, positional deviation of the lens array 26 relative to the housing 28 in the insertion direction thereof can be suppressed.

＜Modification of expansion mechanism＞

In the present exemplary embodiment, as the expansion mechanism that expands the concave portion 30A in the X direction, the suction portion 58 is used, but it is not limited thereto. As the expansion mechanism, for example, the expansion part 200 as shown in FIGS. 17 and 18 may also be used.

As shown in FIG. 17 , the extension unit 200 is arranged, for example, in a space 54A formed in the mounting table 54 . The extension part 200 includes a cylindrical body 210 and a pair of claw parts 220 . The cylindrical body 210 includes a main body portion 212 and a pair of movable members 214 protruding laterally (−Y direction) from the main body portion 212 . As shown in FIG. 18 , a pair of movable members 214 are arranged side by side in the X direction. The pair of movable members 214 is opened and closed in the X direction by the drive of the drive portion (not shown) of the main body portion 212 . That is, the pair of movable members 214 moves toward each other or toward each other (see the direction of arrow B).

The claw portion 220 is fixed to the movable member 214 so as to extend upward (Z direction) from each movable member 214 . Specifically, the claw portion 220 is disposed between the inner surfaces 28E, 28F of the housing 28 placed on the mounting table 54 . In addition, in the expanding part 200 , the inner surfaces 28E and 28F of the case 28 are pressed in the −X direction and the X direction by the claw part 220 by the opening operation of the movable member 214 to expand.

＜Other modifications＞

In the present exemplary embodiment, the lens array 26 is inserted into the concave portion 30A by moving the lens array 26 relative to the housing 28 in a state held by the holding mechanism 51 , but it is not limited thereto. For example, the lens array 26 may be inserted into the concave portion 30A by moving the housing 28 while holding the lens array 26 . Therefore, it is only necessary to relatively insert one end of the lens array 26 into the housing 28, and relatively rotate the lens array 26 around the one end of the lens array 26 to insert the other end of the lens array 26 into the housing 28. .

In this exemplary embodiment, the longitudinal one end portion (−Y direction end portion) of the lens array 26 is inserted into the longitudinal one end portion (−Y direction end portion) of the concave portion 30A formed in the housing 28 (one end portion insertion process), but Not limited to this. For example, after inserting the longitudinal end portion (-Y direction end) of the lens array 26 into the longitudinal center portion of the recess 30A, the longitudinal end portion (-Y direction end) of the lens array 26 is moved to the recess 30A. One end in the longitudinal direction (the end in the -Y direction).

In this exemplary embodiment, the lens array 26 is inserted into the concave portion 30A while the concave portion 30A is expanded, but not limited thereto, and the lens array 26 may be inserted into the concave portion 30A while the concave portion 30A is not expanded.

In this exemplary embodiment, the chamfer 37 is formed on the edge portion along the Y direction of the concave portion 30A, but not limited thereto, and the chamfer 37 may not be formed on the edge portion along the Y direction of the concave portion 30A. In addition, even if the chamfer 37 is formed along the Y-direction edge portion of the recessed portion 30A, as long as the chamfer 37 is formed on the -Y-direction end side of the recessed portion 30A (the side where the -Y-direction end portion of the lens array 26 is inserted first). Chamfering 37 is enough.

In this exemplary embodiment, a pair of protrusions 29A and a bottom plate 31 are formed on the housing 28 as an example of a positioning portion, but only a pair of protrusions 29A and a bottom plate 31 may be formed as an example of a positioning portion. at least one of the In addition, when only the pair of protrusions 29A are formed, the pair of protrusions 29A may be formed at both ends in the longitudinal direction of the housing 28 (portions where the bottom plate 31 is formed).

In the present exemplary embodiment, as an example of an optical device which is an object of manufacture, the print head 20 as an exposure device is used, but it is not limited thereto. As an example of the optical device, for example, a reading device such as a contact image sensor (Contact Image Sensor) may be used. The contact image sensor has, for example, a light-receiving substrate instead of the light-emitting substrate (printed wiring substrate 24 ) on which the light-emitting elements (LED array 22 ) on the print head 20 are mounted, and a plurality of light-receiving elements mounted thereon. In addition, like the print head 20 , the contact image sensor includes a lens array (an example of an optical component) arranged to face the light receiving element, and a case in which the light receiving substrate and the lens array are mounted. In addition, the contact image sensor has a light source that irradiates light to a reading target.

The present invention is not limited to the exemplary embodiments described above, and various modifications, changes, and improvements can be made without departing from the gist thereof. For example, it may be configured to appropriately combine a plurality of the above-mentioned modified examples.

The foregoing description of exemplary embodiments of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations can be made by those skilled in the art. The purpose of the selection and description of this embodiment is to explain the principle of the present invention and its practical application in the best way, so that other skilled in the art can understand various embodiments of the present invention and make suitable Variations of use. The scope of the invention is defined by the claims and their equivalents filed together with this specification.

Claims (7)

1. A manufacturing device for an optical device, characterized in that: a holding mechanism that holds a housing formed with a recess extending in one direction; and an insertion mechanism that supports the optical component in a state of being inclined relative to the case, inserts one end of the optical component into one end of the recess, and holds the one end of the optical component toward the Simultaneously with the inserted state of the recess, the other end of the optical member is inserted into the other end of the recess by relatively rotating the optical member around one end of the optical member. 2. The manufacturing apparatus of an optical device according to claim 1, wherein: An expansion mechanism is provided that expands the interval of the concave portion to be longer than the length of the optical component in the entire one direction, the interval being opposed in a crossing direction intersecting with the one direction of the housing. The distance between the inner surfaces of the recesses, and the length of the optical component is the length of the optical component in the above-mentioned intersecting direction. 3. The manufacturing apparatus of an optical device according to claim 1 or 2, wherein A pressing mechanism is provided, and a positioning portion is formed in the concave portion of the housing, and the positioning portion is in contact with at least both ends of the optical component to position the optical component relative to the housing along its insertion direction. , the pressing mechanism presses the optical component against the positioning portion. 4. A method of manufacturing an optical device utilizing the manufacturing device of an optical device according to claim 1, comprising: Positioning process, placing the housing on the holding mechanism and positioning it; an end inserting process, using an insertion mechanism to relatively insert one end of the optical component inclined relative to the housing into one end of a concave portion extending in one direction of the housing; and The other end portion inserting step is to use the insertion mechanism until the other end portion of the optical component is inserted into the other end portion of the concave portion while maintaining the inserted state of the one end portion of the optical component into the concave portion, The optical member is relatively rotated around one end of the optical member. 5. The method of manufacturing an optical device according to claim 4, wherein: A case in which at least the one end portion of the edge portion along the one direction of the concave portion is chamfered is used. 6. The method of manufacturing an optical device according to claim 4, wherein: Before the above-mentioned one-end inserting step, an expanding step of expanding the interval of the concave portion to be longer than the length of the above-mentioned optical member in the entire one direction, the interval being at the one end with the housing, is included. The distance between the inner surfaces of the concave portions facing each other in the intersecting direction, and the length of the optical component is the length of the optical component in the intersecting direction. 7. The method of manufacturing an optical device according to any one of claims 4 to 6, wherein: Including a pressing step, a positioning portion is formed in the concave portion of the housing, and the positioning portion is in contact with at least both ends of the optical component to position the optical component relative to the housing along its insertion direction. The pressing step includes pressing the optical component against the positioning portion after the other end portion inserting step.