JP2002267911A - Optical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize highly accurate lens positioning simply and easily with a simple configuration. SOLUTION: A lens holding frame 11 is assembled and arranged to a frame member 10 through an X adjusting member 14 and a Y adjusting member 15. When the X adjusting member 14 is moved in the optical axis direction, while the lens holding frame 11 is adjusted in position in X direction, the movement adjustment is performed in the state where movement and turning in Y direction are regulated by the action of the Y adjusting member 15 or the like. When the Y adjusting member 15 is moved in the optical axis direction, while the lens holding frame 11 is adjusted in position in Y direction, the movement adjustment is performed in the state where the movement and turning in the X direction are regulated by the action of the X adjusting member 14 or the like. The positioning of both in the X direction and in the Y direction can independently be adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device having a lens, such as a camera and an observation device.

[0002]

2. Description of the Related Art Generally, in an optical apparatus, a plurality of lens groups constituting an optical system are accommodated and arranged in a lens holding frame, and the lens holding frame is positioned and assembled with a frame member. It is attached to a lens barrel of an optical device such as a camera. Such an optical system is required to accurately determine the relative positions of a plurality of lens groups in order to sufficiently exhibit its performance. For this reason,
2. Description of the Related Art Conventionally, various lens adjustment techniques for performing accurate position adjustment of a plurality of lens groups have been proposed.

[0003] As such a lens adjustment technique, for example, a lens holding frame in which a lens group is assembled is accommodated and arranged with a predetermined gap with respect to a frame member. There is a method in which the position is adjusted on a plane perpendicular to the axis, and after the adjustment, the lens holding frame is fixed to the frame member by positioning or the like.
87 proposes a technique in which two eccentric pins are provided, and adjustment in two directions substantially orthogonal to each other is performed by rotating these eccentric pins.

However, in the former method, the adjustment can be performed with a simple configuration. However, the degree of freedom in the adjustment direction of the lens holding frame is large, and some adjustment machine is required to perform the precise adjustment. In some cases, the workability was not good.

In the latter technique described in JP-A-11-271587, when one of the two eccentric pins is operated, the lens holding frame rotates around the other eccentric pin. Therefore, it is difficult to perform highly accurate adjustment.

[0006]

As described above, the conventional optical apparatus has a disadvantage that the position adjustment of the lens mounted on the lens holding frame is very troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an optical apparatus which has a simple structure and which can easily and easily realize high-precision lens position adjustment. And

[0008]

An optical apparatus according to the present invention comprises:
A lens holding frame for holding the lens, a frame member for holding the lens holding frame, first adjusting means for adjusting the position of the lens holding frame in a first direction substantially orthogonal to an optical axis of the lens, Second adjusting means for adjusting the position of the lens holding frame in a second direction substantially orthogonal to the optical axis of the lens and substantially orthogonal to the first direction, wherein the first adjusting means Accordingly, when the position of the lens holding frame is adjusted in the first direction, the movement of the lens holding frame in the second direction is regulated by the second adjusting means, and the movement of the lens holding frame in the second direction is controlled by the second adjusting means. When the position of the lens holding frame is adjusted in the second direction, the movement of the lens holding frame in the first direction is regulated by the first adjusting means.

According to the above arrangement, when the position of the lens holding frame is adjusted with respect to the frame member, when the lens holding frame is adjusted in the first direction by the first adjusting means, the second adjusting means adjusts the second direction.
Is adjusted in a multi-state by adjusting the direction of movement, and is adjusted in a second direction by the second adjusting means. The first direction is adjusted by the first adjusting means to adjust the movement in the multi-state. , The position adjustments in the first and second directions are independently adjusted. Therefore, it is possible to easily and easily adjust the position of the lens of the lens holding frame with high accuracy while realizing a simple configuration.

Further, the optical apparatus of the present invention is a lens holding frame for holding a lens, a frame member for holding the lens holding frame, and a first direction in which the lens holding frame is substantially perpendicular to the optical axis of the lens. And a second adjusting member for adjusting the position of the lens holding frame in a second direction substantially orthogonal to the optical axis of the lens and substantially orthogonal to the first direction.
And the first member provided on the lens holding frame and the first member.
A first guide portion provided in contact with the adjustment member, a second guide portion provided on the lens holding frame and abutted on the second adjustment member, and the lens holding frame provided in the first holding portion. A first urging means for urging the lens holding frame in a direction in which the guide portion and the first adjustment member abut, and the second guide portion and the second adjustment member abutting the lens holding frame. A second urging means for urging the lens holding frame in the first direction with the first adjusting member. The movement of the lens holding frame in the second direction is restricted by the positional relationship with the first adjusting member, and the position of the lens holding frame is adjusted in the second direction by the second adjusting member. The position of the second guide member and the second adjustment member may cause the lens to be held. The movement of the first direction is configured to be regulated.

According to the above configuration, when the position of the lens holding frame is adjusted with respect to the frame member, when the position is adjusted in the first direction by the first adjusting member, the first guide portion and the first guide portion are adjusted.
When the second adjustment member is moved and adjusted in a state where the second direction is regulated, and the position is adjusted in the second direction by the second adjustment member, the second guide portion and the second adjustment member cause the second adjustment member to perform the second adjustment. The position adjustment in the first and second directions is independently adjusted by regulating the movement in one direction and controlling the movement in multiple states. Therefore, it is possible to easily and easily adjust the position of the lens of the lens holding frame with high accuracy while realizing a simple configuration.

Further, the present invention provides a lens holding frame for holding a lens, a frame member for holding the lens holding frame, and a first member which is substantially perpendicular to an optical axis of the lens of the lens holding frame with respect to the frame member. First adjusting means for adjusting the position of the lens holding frame with respect to the frame member, and a position of the lens holding frame in a second direction substantially orthogonal to the optical axis of the lens and substantially orthogonal to the first direction. A second adjusting unit that adjusts the position of the lens holding frame when the first adjusting unit adjusts a position of the lens holding frame. The first adjusting unit controls movement and rotation of the lens holding frame in the second direction. A second regulating means for regulating movement and rotation of the lens holding frame in the first direction when the position of the lens holding frame is adjusted by the second adjusting means; Was provided to constitute an optical apparatus.

According to the above configuration, when the position of the lens holding frame is adjusted with respect to the frame member, when the position of the lens holding frame is adjusted in the first direction by the first adjusting member, the first regulating means sets the position of the lens holding frame. When the movement and rotation in the direction 2 are regulated and the position is adjusted in the second direction by the second adjusting member, the movement and rotation in the first direction are performed by the second regulating means. Is adjusted in a state where
And the position adjustment in the second direction are independently adjusted.
Therefore, it is possible to easily and easily adjust the position of the lens of the lens holding frame with high accuracy while realizing a simple configuration.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an optical apparatus according to a first embodiment of the present invention. A frame member 10 is mounted on a lens barrel 8 of a camera body 9 shown in FIG. 2, for example.
A lens holding frame 11 is attached to the frame member 10. In FIG. 1, the optical axis direction is indicated by Z, a first direction orthogonal to the optical axis is indicated by X, and a second direction orthogonal to the optical axis and the first direction is indicated by Y.

In FIG. 2, reference numeral 7 denotes a release button, 6
Is a zoom switch, 5 is a viewfinder window, 4 is a distance measurement window, 3
Denotes a strobe window, and 2 denotes a display unit.

The lens holding frame 11 has a mounting ring 111.
A frame 112 having an approximately quadrangular outer shape is formed on one of the sides, and the first and second lenses 12 and 13 are accommodated and arranged at a predetermined interval inside the frame 112. Mounting ring 111
The first engaging portion, for example, four bayonet claw portions “113” (only two portions are shown in FIG. Formed at intervals.

On the other hand, the frame portion 112 is provided with a first inclined portion (a first guide surface) 114 having a predetermined inclination angle with respect to the optical axis on two sides substantially orthogonal to each other, in the first direction (X). Direction), and the second inclined portion (second guide surface) 115 is formed so as to extend in a direction substantially perpendicular to the second direction (Y direction). 1, see FIG. 3). Then, the cam portion 143 formed on the X adjusting member (first adjusting member) 14 constituting the first adjusting means abuts on the first inclined portion 114, and the second inclined portion 115 is in contact with the cam portion 143. A cam portion 153 formed on a Y adjusting member (second adjusting member) 15 constituting the second adjusting means comes into contact.

The frame portion 12 is provided with a pair of X spring contact portions 116 and Y spring contact portions 117 on sides facing the first and second inclined portions 114 and 115, respectively.

Further, the frame member 10 constitutes a position restricting means for restricting the position of the lens holding frame 11 in the optical axis direction, and is provided with a step 101 as a second engaging portion. An insertion port 102 is provided in 101. The insertion opening 102 is formed to be larger than the outer shape of the mounting ring 111 of the lens holding frame 11 by a predetermined amount so that the lens holding frame 11 can be adjusted with respect to the frame member 10 in a plane perpendicular to the optical axis. Have been. And in this insertion slot 102,
For example, four bayonet notches 103 are formed at predetermined intervals at positions corresponding to the bayonet claws 113 provided on the mounting ring 111.

Then, the lens holding frame 1 is attached to the frame member 10.
When assembling 1, the frame member 10 and the lens holding frame 11 are bayonet-coupled by inserting the bayonet claw 113 into the bayonet notch 103 and rotating one of them. In this state, the lens holding frame 11
As shown in FIG. 4, the position of the frame member 10 in the optical axis direction with respect to the frame member 10 is regulated, and can be displaced in a gap generated between the mounting ring 111 and the insertion opening 102. That is, the lens holding frame 11 is formed by the bayonet claw 113 and the step 101.
Thus, the position of the frame member 10 in the optical axis direction is regulated.

FIG. 4 shows a cross section of the Y-direction adjusting means in FIG. 3, and members corresponding to the X-direction adjusting means have the same structure and are denoted by parenthesized reference numerals.

Further, a pair of first
Are protruded from the step 101 so as to extend in the optical axis direction so as to face each other with the first direction axis (X axis) therebetween, and a pair of second Z guide protrusions 105 are provided. Are provided so as to extend in the optical axis direction from the step portion 101 so as to face each other across the second direction (Y axis).

In the vicinity of the first Z guide convex portion 104, a pair of first Z guide grooves 1 is formed on the peripheral wall of the step portion 101.
06 is formed so as to extend in the optical axis direction, and a pair of second Z guide grooves 107 on the peripheral wall of the step portion 101 extend in the optical axis direction in the vicinity of the second Z guide convex portion 105. It is formed to come out.

The frame member 10 has first to third X spring engaging portions 108a to 108c and a first
Third to third Y spring engaging portions 109a to 109c are formed corresponding to the X spring contact portion 116 and the Y spring contact portion 117 of the lens holding frame 11, respectively. The first to third X-spring engagement portions 108a to 108c and the first to third Y-spring engagement portions 109a to 109c are protruded at a predetermined interval, and are respectively provided as urging means. A substantially V-shaped regulating X spring member 16 (first urging means) and a Y spring member 1
7 (second urging means) is engaged.

The X spring member 16 and the Y spring member 17
As shown in FIG. 4, both ends of the lens holding frame 1
The X spring contact portion 116 and the Y spring contact portion 117 of the frame portion 1
Are attached so as to apply urging forces in the X and Y directions.
Among them, the X spring member 16 is provided in the Y
The Y spring member 17 is slidable with the X spring abutting portion 116 so as to allow movement in the X direction. It is slidable with the contact part 117.

The X adjusting member 14 is provided with an insertion hole 141 at a substantially central portion thereof, and a pair of Z guide holes 142, 142 are provided at both ends with the insertion hole 141 interposed therebetween.
Are provided corresponding to the pair of first Z guide projections 104, 104. The X adjustment member 14 includes the cam 1
43 is provided corresponding to the first inclined portion 114 substantially orthogonal to the X direction of the lens holding frame 11, and the cam portion 143 is provided.
The frame member 10 is inserted into the pair of guide holes 142, 142.
With the pair of first Z guide convex portions 104, 104 inserted, the first Z guide convex portions 104, 104 are engaged with the first inclined portion 114 of the lens holding frame 11. Further, the X adjustment member 142 has, for example, a pair of first Z guide rails 144 and 144 formed in the optical axis direction, and a pair of first Z guide rails 144 and 144 formed on the frame member 11. First Z guide groove 106, 1
06 is movably inserted.

The X adjustment member 14 has an insertion hole 141
An X screw member 18 constituting an operation member is inserted through the screw member, and the X screw member 18 is screwed into a screw hole 100a formed in the frame member 10 so as to be capable of being screwed and adjusted. Attached. Thereby, the X adjustment member 14
The X-screw member 18 is mounted on the lens holding frame 11 on the optical axis.
Is adjusted from the outside of the X guide rail 14
4, 144 are guided by the first Z guide grooves 106, 106, and the X guide holes 142, 142 are guided by the first Z guide projections 104, 104 of the frame member 10, so that rotation is prevented. In this state, it is moved in the optical axis direction. At this time, the X adjusting member 14 has its cam portion 143 pressing the first inclined portion 114 of the frame portion 112 of the lens holding frame 11 in the X-axis direction, and the first and second lenses 12 with respect to the frame member 10. 13 is adjusted in the X direction (first direction).

The Y adjusting member 15 is provided with a through hole 151 at a substantially central portion thereof, and a pair of second Z guide holes 152, 152 are provided at both ends of the frame member with the through hole 151 interposed therebetween. Ten pairs of second Z guide projections 105, 105
Is provided in correspondence with. A cam portion 153 is provided on the Y adjusting member 15 so as to correspond to the other second inclined portion 115 that is substantially orthogonal to the Y direction of the lens holding frame 11. Y guide holes 142, 1
42, a pair of second Z guide projections 10 of the frame member 11
With the lens holders 5 and 105 inserted, the lens holding frame 11 is inserted.
Is engaged with the second inclined portion 115. The Y adjustment member 15 has, for example, a pair of Y guide rails 154 and 154 formed in the optical axis direction.
A pair of second Z guide grooves 1 formed in the frame member 10
07 and 107 are movably inserted.

The Y adjustment member 15 has an insertion hole 151
, A Y screw member 19 constituting an operation member is inserted therethrough, and the Y screw member 19 is screwed into a screw hole 100b formed in the frame member 10 so as to be capable of being screwed and adjusted. Attached. Thereby, the Y adjustment member 15
The Y screw member 19 is positioned on the lens holding frame 11 on the optical axis.
Of the Y guide rail 15
4, 154 are guided by the second Z guide grooves 107, 107, and the second Z guide holes 152, 152 are guided by the second Z guide projections 105, 105 of the frame member 10 to rotate. In the blocked state, it is moved in the optical axis direction. At this time, the cam portion 153 of the Y adjusting member 15 presses the second inclined portion 115 of the frame portion 112 of the lens holding frame 11 in the Y-axis direction so that the first and second lenses 1
The positions of the Y direction (second direction) 2 and 13 are adjusted.

In the above configuration, the X adjusting member 14
The Y adjustment member 15 has the first Z guide projections 104, 104 and the second Z guide projection 10 of the frame member 11 in the X guide holes 142, 142 and the second Z guide holes 152, 152.
5, 105 are inserted, and their X guide rails 144, 14
4 and Y guide rails 154 and 154
Z guide grooves 106, 106 and a second Z guide groove 107,
107, the insertion holes 141, 151
The X screw member 18 and the Y screw member 19 are inserted through the holes, and screwed into the screw holes 100a and 100b of the step portion 101 of the frame member 10 to be assembled. Here, these X adjustment members 14
And the Y adjustment member 15 are arranged in the frame member 10 when viewed from the optical axis direction.
Inside the lens holding frame 11.

As described above, the lens holding frame 1 attached to the frame member 10 via the X adjusting member 14 and the Y adjusting member 15
1 is X with respect to the optical axis of the first and second lenses 12 and 13 in a state where it is assembled to the frame member 10 as described above.
The position in the direction and the Y direction is adjusted. First, when adjusting the first and second lenses 12 and 13 of the lens holding frame 11 in the X direction with respect to the optical axis, the X screw member 18 of the X adjusting member 14 is adjusted from the optical axis direction to an adjusting jig or the like. Adjust screwing using. Then, in accordance with the rotation direction of the X screw member 18, the X adjustment member 14 has its Z guide holes 142, 142 and Z guide rails 144, 144 that are connected to the first Z guide projection 1 of the frame member 10.
04, 104 and the first Z guide grooves 106, 106 to move in the optical axis direction.

At this time, since the cam portion 143 of the X adjusting member 14 and the first inclined portion are in contact with each other by the urging force of the X spring member 16 in the lens holding frame 11, the rotation direction of the X screw member 18 is changed. Is displaced in the X direction according to. That is, when the X screw member 18 is rotated in the screwing direction, the X adjusting member 14 is displaced rightward in the drawing as shown in FIG. Holding frame 11
Is displaced in the X direction, and when the X screw member 18 is rotated in the opposite direction, the urging force of the X spring member 16 displaces the lens holding frame 11 in the X direction. The member 14 is displaced leftward in the figure. On the other hand, when the position adjustment of the lens holding frame 11 in the X direction is performed in this way, the cam portion 153 of the Y adjustment member 15 and the inclined portion 115 extending in the direction (X direction) orthogonal to the Y direction are Y. Since the spring member 17 is in contact with the urging force, the Y adjustment member 15
And the inclined portion 115 function as linear guide means for smoothly displacing the lens holding frame 11 in the X direction, and regulate movement of the lens holding frame 11 in the Y direction and rotation about the optical axis. I have. In addition, the movement of the lens holding frame 11 in the optical axis direction is restricted by the engagement relationship between the bayonet claw 113 and the step 101 as described above.

The adjustment of the position of the lens holding frame 11 in the Y direction is performed by rotating the Y screw member 19, which is the same as the adjustment in the X direction. That is, according to the position of the Y adjustment member 15 in the optical axis direction, the lens holding frame 11 is
Is adjusted in the Y direction, and at this time, the X adjustment member 14 is adjusted.
Cam portion 143 and first inclined portion 11 of lens holding frame 11
The movement of the lens holding frame 11 in the X direction and the rotation around the optical axis are restricted by the contact relationship with the lens holder 4.

As described above, the X adjusting member 14, which is the first adjusting member constituting the first adjusting means for adjusting the position in the first direction, is a lens holding frame for adjusting the position in the second direction. Y adjustment member, which is a second adjustment member that functions as a second straight guide that regulates movement and rotation of the eleventh in the first direction and constitutes second adjustment means that adjusts the position in the second direction. Reference numeral 15 also functions as a first rectilinear guide that regulates movement and rotation of the lens holding frame 11 in the second direction when performing adjustment in the first direction.

When the adjustment is completed, the lens holding frame 11
Are bonded and fixed to the frame member 10. Here, the X adjustment member 14, the Y adjustment member 15, the X screw member 18,
The Y screw member 19, the X spring member 16, and the Y screw member 17
For example, it is detachably detached from the lens holding frame 11 and the frame member 10.

Further, the X spring member 1 is sufficiently moved so that the lens holding frame 11 is not displaced even when an impact or the like is applied.
6. By increasing the urging force of the Y spring member 17, the lens holding frame 11 can be fixed without performing adhesive fixing.

As described above, in the above-described optical apparatus, the lens holding frame 11 is assembled and disposed on the frame member 10 via the X adjustment member 14 and the Y adjustment member 15, and the X adjustment member 14 is arranged in the optical axis direction. When the moving operation is performed, the position adjustment of the lens holding frame 11 in the X direction is performed, and the movement and rotation in the Y direction are regulated by the action of the Y adjusting member 15 and the like, and the movement is adjusted. When the moving operation is performed in the axial direction, the position of the lens holding frame 11 in the Y direction is adjusted, and
By the operation of the adjustment member 14 and the like, the movement is adjusted in a state where the X direction and the rotation are restricted, and the position adjustment in both the X direction and the Y direction can be adjusted independently.

According to this, while realizing a simple structure, the position of the lens holding frame 11 can be easily and easily adjusted with high accuracy, and the X screw member 18 and the Y screw The quantitative adjustment according to the rotation amount of the member 19 can be easily performed.

According to this, for example, when the optical axis of an optical system constituting an optical apparatus is adjusted, the lens holding frame 11 which is a feature of the present invention is adjusted via the X adjusting member 14 and the Y adjusting member 15. First, the freely assembled frame member 10 is
For example, the optical system is assembled and disposed with a lens group of another frame member, and in this assembled state, the degree of eccentricity of the other frame member with respect to the lens optical axis is measured. Then, according to the measured eccentricity, the X adjustment member 14 and the Y adjustment member 15 adjust the X screw member 18 and the Y screw member 19 to perform the position adjustment in the X direction and the Y direction. The eccentricity of the optical system can be adjusted.

As a result, the step of measuring the amount of eccentricity of the lens and the step of adjusting the eccentricity can be performed separately, and a simple and easy assembling operation is realized.

Further, as shown in FIG. 2, for example, if a frame member 10 is provided at the tip of the lens barrel 8 and the lens holding frame 11 can be adjusted on the frame member 10, it is possible to cure a driver or the like from the optical axis direction. Since the adjustment operation can be performed using the tool, the adjustment of the optical device in a finished product state can be easily performed. In this case, if a donut-shaped plate member or the like having an opening in the lens portion is attached to the end of the frame member 10 after the adjustment, the adjustment mechanism can be covered, and the appearance is not impaired.

In this embodiment, the displacement of the X adjusting member 14 and the Y adjusting member 15 as the adjusting members in the optical axis direction is used for adjusting the position of the lens holding frame 11 in the X and Y directions. The X and Y directions can be adjusted without enlarging the outer shape of 10.

In the above embodiment, the first and second inclined portions 114 and 11 are provided on the frame 112 of the lens holding frame 11.
5 are formed, and cam portions 143 and 153 having inclined surfaces are formed on the X adjustment member 14 and the Y adjustment member 15.
The description has been given of the case where the lens holding frame 11 is moved and adjusted in the X direction and the Y direction by the movement adjustment of the adjusting member 14 and the Y adjusting member 15, but the present invention is not limited thereto.
For example, as shown in FIG.
For example, a curved portion 118 (only one is shown in FIG. 5 for the sake of illustration) is formed in contact with the cam portion, and this curved portion 118 is attached to the X adjusting member 14 (and the Y adjusting member 1).
It is also possible to adopt a configuration in which the moving portion is biased by the cam portion 143 (153) having the inclination of 5).

The cam portions 143 and 153 of the X adjustment member 14 and the Y adjustment member 15 and the first and second inclined portions 11 of the frame portion 112 of the lens holding frame 11 to be driven.
With respect to the configuration with 4, 115 (or the curved portion 118), various other configurations can be configured.

As the X and Y adjustment means, the first Z guide holes 142, 142, the second Z guide holes 152, 152,
The first Z guide rails 144 and 144 and the second Z guide rails 154 and 154 are formed, and the first Z guide convex portions 104 and 104, the second Z guide convex portions 105 and
5. The X adjustment member 14 and the Y adjustment without forming the first Z guide grooves 106, 106 and the second Z guide grooves 107, 107 so as to move and guide each of them in the optical axis direction. It is also possible to form a guide convex portion and a guide groove in the member 15 so as to form a guide hole and a guide rail in the frame member 10, and various structures can be configured.

Further, the present invention is not limited to the above-described embodiment, but may be configured with an X adjusting member and a Y adjusting member as shown in FIGS. 6 to 9, for example. However, in FIGS. 6 to 9, the same parts as those in FIGS. 1 to 5 are denoted by the same reference numerals, and the description thereof will be omitted.

That is, the X adjusting member 20 is provided with an insertion hole 201 having a long diameter in the Y direction at a substantially central portion thereof.
A pair of X guide rails 202, 202 are provided on one surface thereof so as to extend substantially parallel to the X direction with an insertion hole 201 interposed therebetween. On the other hand, the Y adjusting member 21 is provided with an insertion hole 211 having a long diameter in the X direction at a substantially central portion thereof, and a pair of Y guide rails 212 on one surface with the insertion hole 211 interposed therebetween.
212 is provided to extend substantially parallel to the Y direction.

The frame member 10 on which the X adjustment member 20 and the Y adjustment member 21 are operably adjusted is provided with an assembly surface 221 on one surface thereof. The insertion port 222 is formed in the portion. The plurality of bayonet cutouts 103 are formed around the insertion opening 222 of the frame member 10, and the bayonet claw 113 of the lens holding frame 11 is inserted using the bayonet cutouts 103. Bayonet combined.

The mounting surface 222 of the frame member 10 includes
A pair of X guide grooves 223, 223 and Y guide grooves 224, 2
24 are provided corresponding to the X guide rails 202, 202 and Y guide rails 212, 212 of the X adjustment member 20 and the Y adjustment member 21, and a pair of X guide grooves 223, 223 are provided.
Mounting holes 225, 2 between Y guide grooves 224, 224.
26 are formed corresponding to the insertion holes 201 and 211 of the X adjustment member 20 and the Y adjustment member 21.

The X adjustment member 20 and the Y adjustment member 21
Are the X guide rails 202, 202 and the Y guide rail 2
12 and 212 are inserted into the X guide grooves 223 and 223 and the Y guide grooves 224 and 224 of the mounting surface 221 of the frame member 10 and are mounted on the frame member 10. Here, the X adjustment member 20
And the Y adjusting member 21, the side wall of which is engaged with the side wall of the frame 112 of the lens holding frame 11, and the X operating member 23 and the Y operating member 2
4 is inserted.

The X operation member 23 and the Y operation member 24
On the base, operating parts 231 and 241 are formed corresponding to an adjusting jig for a driver or the like (not shown), and eccentric parts 232 and 242 forming a cam are formed in the middle part. The eccentric portions 231 and 242 are formed so as to be eccentric by a predetermined amount with respect to the operation members 231 and 241 and the tip portions 233 and 243 formed coaxially. The X operation member 23 and the Y operation member 24 have a tip 233,
243 is a mounting hole 225 of the mounting surface 221 of the frame member 10,
The X operation member 23 and the Y operation member 24 are rotatably mounted on the X operation member 23 and the Y operation member 24 from the optical axis direction using the distal ends 233 and 243 as rotation axes.

In the above configuration, first, the lens holding frame 1
The first and second lenses 12 and 13 are moved with respect to the optical axis by X
In the case of adjusting the direction, the X operation member 23 of the X adjustment member 20 is screw-adjusted from the optical axis direction using an adjustment jig or the like.
Then, the eccentric portion 232 cooperates with the insertion hole 201 of the X adjustment member 20 in accordance with the rotational position of the X operation member
The adjustment member 20 is urged in the X direction. Here, the X adjusting member 20 has its X guide rails 202,
Are moved in the X direction by being guided by the X guide grooves 223 and 223.

At this time, the lens holding frame 11 is provided with the biasing force of the X spring member 16 and the Y spring member 17 and the Y adjustment member 21.
The rotation and the movement in the Y-axis direction are restricted by the engagement relationship between the frame portion 112 and the side wall of the frame portion 112. At the same time, the lens holding frame 1
The movement of the bayonet claw portion “113” and the mounting surface 221 of the frame member 10 restricts movement of the frame member 10 in the optical axis direction.

Here, the X adjusting member 20 presses the side wall of the frame portion 112 of the lens holding frame 11 with its side wall according to the moving position in the X direction, and resists the urging force of the X spring member 16. By moving the lens in the X-axis direction, the positions of the first and second lenses 12 and 13 with respect to the frame member 10 in the optical axis direction are adjusted. When the movement position of the X adjustment member 20 in the X direction is reversed in a direction away from the optical axis, the lens holding frame 11
It is displaced in the opposite direction (left direction in FIG. 7) by the urging force of the spring member 16.

Further, Y is set with respect to the optical axis of the lens holding frame 11.
When adjusting the direction, the Y operation member 24 of the Y adjustment member 21 is screw-adjusted from the optical axis direction using an adjustment jig or the like.
Then, the eccentric part 242 cooperates with the insertion hole 211 of the Y adjustment member 21 in accordance with the rotational position of the Y operation member
The adjustment member 21 is urged in the Y direction. Here, the Y adjustment member 21 has its Y guide rails 212, 212
Are guided in the Y guide grooves 224, 224, and are moved in the Y direction (see FIGS. 8 and 9).

FIGS. 8 and 9 show cross sections of the Y-direction adjusting means in FIG. 6, and corresponding members related to the X-direction adjusting means are indicated by numbers in parentheses. The code O is
The optical axis on the side of the frame member 10 is shown, and O ′ is the optical axis on the side of the lens holding frame 11. Further, a indicates the center of the operating portion 241 and the tip 243 of the Y adjusting member 24, and a 'indicates the center of the eccentric portion 242 of the Y adjusting member 24, and these indicate the X direction as shown in FIG. Are formed so that the optical axis O 'and the optical axis O, a and a' coincide with each other. This allows
By rotating the Y operation member 24, the lens holding frame 11 can be displaced in both directions with respect to the optical axis O.

At this time, the lens holding frame 11 is provided with the urging force of the X spring member 16 and the Y spring member 17 and the X adjustment member 20.
The rotation and the movement in the X-axis direction are restricted by the engagement relationship between the frame and the side wall of the frame 112. At the same time, the lens holding frame 1
The movement of the bayonet claw portion “113” and the mounting surface 221 of the frame member 10 restricts movement of the frame member 11 in the optical axis direction.

Here, the Y adjusting member 21 presses the side wall of the frame portion 112 of the lens holding frame 11 with its side wall according to the moving position in the Y direction, and resists the urging force of the Y spring member 17. By moving the lens in the Y-axis direction, the positions of the first and second lenses 12 and 13 with respect to the frame member 11 in the optical axis direction are adjusted. When the movement position of the Y adjustment member 21 in the Y direction is reversed in a direction away from the optical axis, the lens holding frame 11
It is displaced in the opposite direction (upward in FIG. 7) by the urging force of the spring member 17.

As described above, also in this embodiment, the first
The first adjusting means for adjusting the position in the direction of
The X adjustment member 20, which is an adjustment member of the above, also functions as a second rectilinear guide that regulates movement and rotation of the lens holding frame 11 in the first direction when performing position adjustment in the second direction,
The Y adjustment member 21 serving as a second adjustment member that constitutes a second adjustment unit that adjusts the position in the second direction is provided in the second direction of the lens holding frame 11 when performing the position adjustment in the first direction. It also functions as a first straight-ahead guide that regulates movement and rotation. Therefore, the first direction and the second direction substantially orthogonal to the first direction
Can be adjusted independently of each other, and the same effects as in the first embodiment can be obtained.

Therefore, the present invention is not limited to the above embodiments, and various modifications can be made in the implementation stage without departing from the scope of the invention.
Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

For example, even if some components are deleted from all the components shown in each embodiment, the problems described in the section of the problem to be solved by the invention can be solved and the effects of the invention are described. When an effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

Based on the above-described embodiment, (1) a lens holding frame for holding a lens, a frame member for holding the lens holding frame, and a second frame provided on the lens holding frame and engaged with the frame member. A first engaging portion, a second engaging portion provided on the frame member and engaging with the first engaging portion, and the lens holding frame in a plane substantially orthogonal to an optical axis of the lens. A first adjusting member for adjusting in a first direction, and a second adjusting member for adjusting the lens holding frame in a second direction within the plane and substantially orthogonal to the first direction. An adjusting member, a first guide portion provided on the lens holding frame, extending in the second direction, contacting the first adjusting member, and a first guide portion provided on the lens holding frame; And a second guide portion extending in the direction of First urging means for urging the frame in a direction in which the first guide portion and the first adjustment member come into contact with each other; and the second guide portion and the second adjustment member for moving the lens holding frame to the second guide portion. And a second urging means for urging the lens holding frame in a direction in which the lens holding frame is adjusted by the first adjusting member. The movement in the second direction is regulated by the second adjustment member, and the movement in the optical axis direction is regulated by the engagement relationship between the first engagement portion and the second engagement portion. When adjusting the position of the lens holding frame in the second direction by the second adjustment member, the movement in the first direction is restricted by the first adjustment member, and The movement in the optical axis direction is restricted by an engagement relationship between the first engagement portion and the second engagement portion. It is possible to provide an optical apparatus.

(2) An optical apparatus characterized in that the first engagement portion and the second engagement portion described in (1) are bayonet-coupled.

(3) In the above description of (1) and (2),
A first guide portion provided on the frame member for guiding the first adjustment member in the optical axis direction; and a first guide portion provided on the frame member for guiding the second adjustment member in the optical axis direction. 1
And the first adjusting member is provided on the first adjusting member.
A first cam surface inclined by a predetermined amount with respect to the optical axis direction, provided on the second adjusting member, and abutting on the second guide portion. And a second cam surface inclined by a predetermined amount with respect to the optical axis direction, wherein the first adjusting member is displaced in the optical axis direction to form the first cam member. Due to the contact relationship between the cam surface and the first guide portion, the lens holding frame is displaced in the first direction with respect to the frame member, and displaces the second adjustment member in the optical axis direction. Accordingly, the optical device is characterized in that the lens holding frame is displaced in the second direction with respect to the frame member due to the contact relationship between the second cam surface and the second guide portion. it can.

(4) In the description of (3), a first operating member for displacing the first adjusting member in the optical axis direction and a second operating member for displacing the second adjusting member in the optical axis direction. An optical device comprising: a first operating member and a second operating member, wherein the first and second operating members are operably disposed in the optical axis direction.

(5) In the above description of (1) and (2),
The first adjusting member is provided on the frame member, and the first adjusting member is connected to the first adjusting member.
A first guide portion provided in the frame member, a second guide portion guiding the second adjustment member in the second direction, and a first guide portion provided in the first adjustment member. A first elongated hole extending in the second direction, a second elongated hole provided in the second adjustment member and extending in the first direction, and the first adjustment A first operating member for displacing a member in the first direction; and a second operating member for displacing the second adjusting member in the second direction.
The second operating member is formed eccentrically with the first cylindrical portion, which is radially fitted to the frame member, and is formed eccentrically with the first cylindrical portion, respectively, and is fitted to the first and second long diameter portions, respectively. A second cylindrical portion that is adapted to rotate the first operating member, whereby the first adjusting member is displaced in the first direction by rotating the first operating member, and the second operating member is rotated. Accordingly, it is possible to provide an optical apparatus characterized in that the second adjustment member is displaced in the second direction.

(6) a lens holding frame for holding a lens;
A frame member for holding the lens holding frame, first adjusting means for adjusting the position of the lens holding frame in a first direction substantially orthogonal to the optical axis of the lens, and an optical axis of the lens for the lens holding frame. And second adjustment means for adjusting the position in a second direction substantially orthogonal to the first direction. The first and second adjustment means are provided at one end of the frame member. The optical device is provided so as to be operable in the optical axis direction, and independently adjusts the position of the lens holding frame in each direction.

(7) In the above description of (6), the first and second adjusting means are provided on the frame member, and are disposed between the outer shape of the lens holding frame and the inner diameter of the frame member. An optical device characterized by the above features can be provided.

(8) The first and second adjusting members and the first and second urging means described in the above (1), (2) and (3) are arranged so that the lens holding frame and the frame member are connected to each other. An optical apparatus characterized in that the optical apparatus is detachably detached while being bonded and fixed.

(9) The first described in (4) and (5) above
And the second adjusting member, the first and second urging means, and the first and second operating members are detachably detached in a state where the lens holding frame and the frame member are bonded and fixed. An optical device characterized by the above features can be provided.

(10) The first and second adjusting means described in (6) and (7) are detachably detached while the lens holding frame and the frame member are adhered and fixed. An optical device characterized by the above features can be provided.

[0073]

According to the present invention, it is possible to provide an optical apparatus which has a simple structure and which can easily and easily realize high-precision lens position adjustment.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view shown for explaining a main configuration of an optical apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view shown for explaining a schematic configuration of a camera to which the configuration shown in FIG. 1 is applied;

FIG. 3 is a plan view showing the assembled state of FIG. 1 viewed from the optical axis direction.

FIG. 4 is a cross-sectional view showing FIG. 3 in a Y direction.

FIG. 5 is a cross-sectional view showing a part of a main part of an optical apparatus according to another embodiment of the present invention.

FIG. 6 is an exploded perspective view showing a configuration of a main part of an optical apparatus according to another embodiment of the present invention.

FIG. 7 is a plan view showing the assembled state of FIG. 6 as viewed from the optical axis direction.

8 is a cross-sectional view showing one state of the Y-direction adjustment of FIG.

FIG. 9 is a cross-sectional view showing another state of the Y-direction adjustment of FIG. 6;

[Explanation of symbols]

2 Display part. 3 ... Strobe window. 4. Distance measuring window. 5 Finder window. 6 Zoom switch. 7 ... Release button. 8 ... lens barrel. 9 Camera body. 10 Frame member. 101 ... stepped part. 102 ... insertion slot. 103 ... Bayonet notch. 104 1st Z guide convex part. 105... Second Z guide projection. 106 1st Z guide groove. 107 Second Z guide groove. 108a to 108c: First to third X spring engaging portions. 109a to 109c: First to third Y spring engaging portions. 100a ... screw holes. 100b ... screw hole. 11: Lens holding frame. 111 ... Mounting ring. 112 ... Frame part. 113 ... Bayonet claw part. 114... First, an inclined portion. 115 ... second inclined portion. 116 ... X spring contact part. 117 ... Y spring contact portion. 118 ... curved part. 12 The first lens. 13 Second lens. 14 ... X adjustment member. 141 ... insertion hole. 142 ... X guide hole. 143… Cam part. 144 ... X guide rail. 15 Y adjustment member. 151 ... insertion hole. 152 ... X guide hole. 153… Cam part. 154… X guide rail. 16 ... X spring member. 17 ... Y spring member. 18 ... X screw member. 19 ... Y screw member. 20 X adjustment member. 201 ... insertion hole. 202 ... X guide rail. 21 ... Y adjustment member. 211 ... insertion hole. 212 ... Y guide rail. 221 ... Assembly surface. 222 ... insertion slot. 223 ... X guide groove. 224: Y guide groove. 225: Mounting hole. 23 ... X operation member. 231 ... operation unit. 232 eccentric part. 24 ... Y operation member. 241, an operation unit. 242 eccentric part. 25 ... fixing ring.

Claims (3)

[Claims] A lens holding frame for holding the lens; a frame member for holding the lens holding frame; and a first member which is substantially perpendicular to an optical axis of the lens.
First adjusting means for adjusting the position in the direction of the arrow; and second adjustment for adjusting the position of the lens holding frame in a second direction substantially orthogonal to the optical axis of the lens and substantially orthogonal to the first direction. Means, and the lens holding frame is moved to the first position by the first adjusting means.
When the position is adjusted in the direction, the movement of the lens holding frame in the second direction is restricted by the second adjusting means, and the lens holding frame is moved by the second adjusting means in the second direction. The optical apparatus according to claim 1, wherein, when the position is adjusted, movement of the lens holding frame in the first direction is regulated by the first adjusting means. 2. A lens holding frame for holding a lens, a frame member for holding the lens holding frame, and a first member substantially perpendicular to an optical axis of the lens.
A first adjustment member for adjusting the position in the direction of the arrow; and a second adjustment for adjusting the position of the lens holding frame in a second direction substantially orthogonal to the optical axis of the lens and substantially orthogonal to the first direction. A member, a first guide portion provided on the lens holding frame and abutting on the first adjusting member, and a second guide provided on the lens holding frame and abutting on the second adjusting member. A first urging means for urging the lens holding frame in a direction in which the first guide portion and the first adjustment member come into contact with each other; And a second urging means for urging the guide portion and the second adjusting member in a direction in which the second adjusting member comes into contact with the first adjusting member.
When the position is adjusted in the direction, the movement of the lens holding frame in the second direction is restricted by the positional relationship between the first guide portion and the first adjustment member, and the second adjustment is performed. When the position of the lens holding frame is adjusted in the second direction by a member, the position of the lens holding frame in the first direction depends on the positional relationship between the second guide portion and the second adjustment member. An optical device whose movement is regulated. 3. A lens holding frame for holding a lens, a frame member for holding the lens holding frame, and a position of the lens holding frame with respect to the frame member in a first direction substantially orthogonal to an optical axis of the lens. A first adjusting means for adjusting the angle of the lens, and a second direction of the lens holding frame with respect to the frame member being substantially orthogonal to the optical axis of the lens and substantially orthogonal to the first direction.
A second adjusting means for adjusting the position of the lens holding frame, and a movement and a rotation of the lens holding frame in the second direction when the position of the lens holding frame is adjusted by the first adjusting means. First regulating means for regulating, and a second regulating means for regulating movement and rotation of the lens holding frame in the first direction when adjusting the position of the lens holding frame by the second adjusting means. An optical device, comprising: a regulating unit.