CN1854783A - Lens with adjustable core - Google Patents

Abstract

A lens with adjustable core comprises a lens cone, a lens unit arranged in the lens cone, a guide unit arranged between a lens to be adjusted of the lens unit and the lens cone, and an adjusting piece sleeved on the lens cone and capable of driving the lens to be adjusted. The adjusting piece is provided with an adjusting ring which is formed in a surrounding mode along a first axis and coaxially sleeved on the lens barrel, and a driving ring which is arranged in a surrounding mode along a second axis from the adjusting ring and can clamp the lens to be cored to enable the lens to be cored to be eccentrically arranged. Therefore, the lens to be adjusted can move along the radial direction only by rotating the adjusting piece, so that the core adjusting effect is generated and the core adjusting operation is smoothly completed.

Description

Adjustable Core Lens

technical field

The invention relates to a lens, in particular to an adjustable core lens which can complete the core adjustment operation without a core adjustment tool.

Background technique

As shown in FIGS. 1 and 2 , a lens 10 has a lens barrel 11 , several lenses 12 , 13 fixed in the lens barrel 11 and a lens 14 to be aligned.

Because the lens 14 to be aligned has the most sensitive characteristics, it is placed on the outermost side to facilitate the alignment of the lens 10. In this way, the lens can be adjusted only by adjusting the position of the lens 14 to be aligned. The optical performance of 10 is the effect of core adjustment.

When carrying out the centering operation, the lens 10 is set on a standard lens 20 earlier, and the light 22 can be incident and Sequentially pass through the lenses 14, 13, 12, 21 and appear in an imaging area 23, and then insert several aligning claws 30 between the lens barrel 11 and the lens 14 to be aligned, so that by moving The aligning claw 30 can make the lens 14 to be aligned radially move and then change its position, and in combination with the clarity of the image presented in the imaging area 23, it can be judged whether the aligning operation of the lens 10 is completed. After the alignment operation is completed, glue 16 must be injected into the gap 15 between the lens to be aligned 14 and the lens barrel 11 so that the lens to be aligned 14 can be finally positioned.

Although the above method can complete the centering operation of the lens 10, there are actually the following deficiencies:

1. The size of the general lens is relatively large, so using the aligning claw 30 as the aligning tool will not cause trouble in operation. However, in response to the requirements of technological products, the lens is now approaching miniaturization, and the lens barrel 11, waiting When the volume of the aligning lens 14 is quite small, if the aligning claw 30 is used as the aligning tool to perform the aligning operation, it is inconvenient to operate and difficult to adjust, resulting in poor efficiency of the aligning operation.

2. Due to the pressure difference, when the glue 16 is injected into the gap 15, the glue 16 is very easy to flow and penetrate into the inner area of the effective diameter of the lens 14 to be centered, thereby affecting the optical performance of the lens 10. At this time, not only the lens barrel 11 and the lens 14 to be aligned need to be rearranged, but also the alignment operation must be carried out again, so there is a defect that the alignment operation efficiency is not good.

3. Because there is the gap 15 between the lens 14 to be aligned and the lens barrel 11, when the glue 16 is injected into the gap 15 at the beginning, the lens 14 to be aligned is very easy due to the glue 16 still having the gap 15. Fluidity causes the position to change. At this time, the alignment operation must be performed again, which is relatively inefficient.

Contents of the invention

The purpose of the present invention is to provide an adjustable center lens that can complete the centering operation without using a centering tool, and the lens can be positioned immediately after adjustment so as to greatly improve the efficiency of the centering operation.

The lens with adjustable core of the present invention is characterized in that:

The adjustable core lens contains

A lens barrel, including a first barrel section and a second barrel section arranged in opposite directions, a perforation extending from the first section along a central axis to the second barrel section, and a hole extending from the second barrel section An end face of the first ring is provided along the central axis with a ring surface and an abutment surface, and an accommodating space formed by the cooperation of the ring surface and the abutment surface.

A lens unit, including at least one lens fixed in the through hole and the lens to be adjusted placed in the accommodating space, the lens to be adjusted has a first mirror surface and a second mirror surface arranged in opposite directions , and a circumferential surface connecting the two mirror surfaces.

A guide unit, including several guide blocks arranged on the abutment surface, and several guide grooves arranged on the first mirror surface and sleeved outside the guide blocks respectively, between each guide groove and the guide block There is a gap.

An adjustment member includes an adjustment ring and a driving ring formed in the adjustment ring, the adjustment ring has an outer ring surface and an inner ring surface around a first axis, and a first ring connecting the two ring surfaces An end face and a second end face; the drive ring has a clamping ring surface arranged around a second axis, and a drive ring end face connecting the clamping ring surface and the inner ring surface.

With the above composition, when the lens to be aligned is placed into the accommodating space, the guide groove is sleeved outside the guide block, and then the adjustment ring of the adjustment member is coaxially sleeved on the lens barrel At the same time, the peripheral surface of the lens to be aligned is clamped by the drive ring, and the lens to be aligned is in an eccentric state relative to the adjustment ring. In this way, only the adjustment member needs to be rotated. The lens to be aligned can be driven to move radially to change its position, thereby producing the alignment effect, so that the present invention has the characteristics that the alignment operation can be completed without an alignment tool, and the efficiency of the alignment operation can be improved.

Description of drawings

Fig. 1 is a combined sectional view, illustrating the state that the general lens group is set on a standard lens for centering operation;

Fig. 2 is a partially combined sectional view, illustrating the state of a general lens after the centering operation is completed and glue is injected to position a lens to be centered;

Fig. 3 is an exploded perspective view of a first preferred embodiment of the adjustable core lens of the present invention;

Fig. 4 is a side view of a lens barrel of the first preferred embodiment;

Fig. 5 is a cross-sectional exploded view of the first preferred embodiment;

Fig. 6 is a combined sectional view of the first preferred embodiment;

Fig. 7 is a partial assembled sectional view of the first preferred embodiment, illustrating a guiding unit;

Fig. 8 is a schematic diagram of a partial assembly of the first preferred embodiment, illustrating that a lens to be aligned is located in a first position;

Fig. 9 is a view similar to Fig. 8, illustrating that the lens to be aligned is in a second position;

Fig. 10 is a plan view of the first preferred embodiment, illustrating that the lens to be aligned moves from the first position to the second position;

Fig. 11 is an exploded perspective view of a second preferred embodiment of the adjustable core lens of the present invention;

Fig. 12 is a partially assembled schematic view of the second preferred embodiment.

Detailed ways

The lens with adjustable core according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

It should be noted that the relative position terms used throughout the specification, such as "first direction X", "second direction Y", and "third direction Z", are based on the coordinate directions shown in each figure, And the first direction X is perpendicular to the second direction Y and the third direction Z, and similar elements are described with the same reference numerals.

As shown in Figures 3 and 6, they are respectively an exploded perspective view and a combined sectional view of a first preferred embodiment of the adjustable core lens of the present invention. The lens unit 50 in the lens barrel 40, a guide unit 60 arranged between the lens barrel 40 and a centering lens 53 of the lens unit 50, and a set of the lens barrel 40 that can drive the lens to be adjusted The adjusting part 70 of the centering lens 53 .

As shown in Figures 3 and 5, which are respectively a three-dimensional exploded view and a cross-sectional exploded view of the first preferred embodiment, the lens barrel 40 includes a first barrel section 41 and a second barrel section 42 arranged in reverse, A through hole 43 extending from the first barrel section 41 along a central axis 400 to the second barrel section 42 , and a hole 43 extending from an end surface 421 of the second barrel section 42 toward the first barrel section 41 along the central axis 400 An annular surface 44 and an abutting surface 45 are provided, and an accommodating space 46 is formed by the cooperation between the annular surface 44 and the abutting surface 45 .

The lens unit 50 includes two lenses 51 , 52 fixed in the through hole 43 and located in the first tube section 41 , and the lens to be aligned 53 placed in the accommodating space 46 . The lens to be aligned 53 has a first mirror surface 531 and a second mirror surface 532 arranged in opposite directions, and a circumferential surface 533 connecting the two mirror surfaces 531 and 532 .

As shown in Figures 6 and 7, which are combined sectional views of the first preferred embodiment, the guide unit 60 includes several guide blocks 61 ( See FIG. 4 , which is a side view of the lens barrel 40 ), and several open guide grooves 62 disposed on the first mirror surface 531 and sleeved outside the guide block 61 . Moreover, the groove width of each guide groove 62 is slightly larger than the width of each guide block 61 so that there is a gap between the guide groove 62 and the guide block 61 .

The first preferred embodiment is described by taking four guide blocks 61 and guide grooves 62 arranged at equal angles as an example, and the positions of the guide blocks 61 and guide grooves 62 can be interchanged.

As shown in FIGS. 3 and 5 , the adjusting member 70 includes an adjusting ring 71 and a driving ring 72 formed in the adjusting ring 71 .

The adjustment ring 71 has an inner ring surface 711 and an outer ring surface 712 around a first axis 710, a first end face 713 and a second end face 714 connecting the two ring faces 711, 712, and a ring from the second ring face 711, 712. The two end surfaces 714 face toward the first axis 710 to form a retaining edge 715 .

The driving ring 72 has a clamping ring surface 721 formed from the retaining edge 715 toward the first end surface 713 and along a second axis 720, and a driving ring connecting the clamping ring surface 721 and the inner ring surface 711 End face 722 .

In the first preferred embodiment, the second axis 720 is eccentric to the first axis 710 , and the drive ring end surface 722 is a cam ring end surface with unequal flesh thickness.

Further, the adjusting member 70 also includes a sleeve portion 73 formed by the cooperation between the inner ring surface 711 and the drive ring end surface 722 .

Preferably, the drive ring 72 has two spaced ends 723, and the adjustment member 70 further includes two elastic push pieces 74 extending from the two spaced end portions 723 along a circumferential direction, and each elastic push piece 74 has a cantilever 741 and an elastic protrusion 742 disposed on the free end of the cantilever 741 and extending into the clamping ring surface 721 .

As shown in FIG. 8 , it is a schematic diagram of the combination of the adjusting member 70 and the lens to be aligned 53 in the first preferred embodiment. Further, the diameter D of the lens to be aligned 53 is ≤ (less than or equal to) the drive The diameter d of the clamping annulus 721 of the ring 72 . In the first preferred embodiment, the diameter D of the lens 53 to be aligned < the diameter d of the clamping ring surface 721, and the elastic fit of the two elastic bumps 742 to the clamping ring surface 721 is used to align the lens to be aligned. The centering lens 53 is interposed and positioned.

As shown in Figures 5, 6, and 7, during assembly, the lenses 51, 52 are first fixed in the inner hole 43 of the lens barrel 40, and then the lens 53 to be adjusted is placed into the accommodation of the lens barrel 40. In the space 46, at the same time, each guide groove 62 is just sleeved outside each guide block 61, and the adjustment ring 71 of the adjustment piece 70 is continued to be sleeved outside the second barrel section 42 of the lens barrel 40, then just can make The second cylinder section 42 is located in the nesting portion 73 of the adjustment member 71, and the first axis 710 and the central axis 400 become the same axis so that the adjustment ring 71 is concentric with the lens barrel 40, but the drive ring 72 and the lens barrel 40 are eccentric, and at the same time, the centering lens 53 is positioned eccentrically with the adjustment ring 71 by the clamping ring surface 721 of the driving ring 72 and the two elastic protrusions 742 (see figure 8), and the lens 53 to be aligned is limited between the stop edge 715 of the adjusting member 70 and the abutting surface 45 of the lens barrel 40 and cannot move along the third direction Z.

As shown in Figures 6, 8, 9, and 10, it is a schematic diagram of the alignment operation of the first preferred embodiment. When adjusting, only the adjustment member 70 needs to be rotated, and the drive ring 72 and the center to be aligned will be aligned. The lens 53 is eccentric relative to the adjustment ring 71, so when the adjustment ring 71 is sleeved on the lens barrel 40 and rotates, the drive ring 72 will rotate relatively eccentrically, but because the lens 53 to be centered and the lens barrel 40 The guide unit 60 (see FIG. 7 ) is arranged between them, so that the lens to be aligned 53 cannot be rotated and converted into a radial movement. With the rotation of the adjusting member 70, the lens to be aligned 53 will move The movement in the first direction X and the second direction Y produces a centering effect.

It is worth noting that, because the lens to be aligned 53 is clamped and positioned by the clamping ring surface 721 and the two elastic bumps 742 at any time, so when the lens to be aligned 53 is adjusted to the optimum position, only the Adhesive 80 is injected into the junction between the first end surface 713 of the adjustment member 70 and the lens barrel 40, so that the adjustment member 70 and the lens barrel 40 can be glued and cannot be rotated any more, and the positioning of the lens 53 to be aligned is also obtained. Then complete the alignment operation of the lens.

As shown in Figures 11 and 12, it is a schematic diagram of a partial combination of a second preferred embodiment of the adjustable core lens of the present invention. The difference between the second preferred embodiment and the first preferred embodiment lies in the first An adjustment member 90 of the second preferred embodiment includes an adjustment ring 91 formed around a first axis 910, a drive ring 92 formed in the adjustment ring 91 around a second axis 920, a set portion 93, and Three clips 94.

The adjustment ring 91 has an inner ring surface 911 and an outer ring surface 912 surrounding the first axis 910 , and a first end surface 913 and a second end surface 914 connecting the two ring surfaces 911 , 912 .

The driving ring 92 has a clamping ring surface 921 formed around the second axis 920 concentric with the first axis 910, a driving ring end surface 922 connecting the clamping ring surface 921 and the inner ring surface 911, and Three spacer blocks 923.

The sleeve portion 93 is formed by cooperation of the inner ring surface 911 and the driving ring end surface 922 and is sleeved on the second cylinder section 42 .

The three clamping blocks 94 are respectively formed between the two spacers 923 and protrude from the clamping ring surface 921 and can sandwich the circumferential surface 533 of the centering lens 53, because the protruding amount of the three clamping blocks 94 Differently, a center 530 of the lens to be aligned 53 is not concentric with the first axis 910 and the second axis 920 , that is, the lens to be aligned 53 is in an eccentric state relative to the adjustment ring 91 .

In this way, when the adjusting member 90 is rotated, the same alignment effect as that of the first preferred embodiment can be produced.

To sum up the above, the adjustable core lens of the present invention has the following effects and advantages, so it can indeed achieve

Purpose of the invention:

1. Because the present invention does not need a centering tool, and only needs to rotate the adjusting parts 70, 90 to complete the lens centering operation, it has the advantages of convenient operation and improved efficiency of the centering operation.

2. Because the centering lens 53 of the present invention is clamped and positioned by the clamping ring surface 721 and the two elastic bumps 742 at any time, and only needs to be at the junction of the first end surface 713 of the adjusting member 70 and the lens barrel 40 By injecting the glue 80, the lens 53 to be aligned can be finally positioned, so it is possible to prevent the glue 80 from flowing into the inner area of the effective diameter of the lens to be aligned 53, which can effectively improve the alignment operation efficiency. effects and advantages.

3. Because the adjustment ring 71 of the adjustment member 70 of the present invention is coaxially sleeved on the second barrel section 42 of the lens barrel 40, the adjustment member 70 does not have a movable space and cannot move in the radial direction. Even if glue 80 is injected at the junction of the first end surface 713 and the lens barrel 40, the position of the adjustment member 70 will not change, and because the lens 53 to be centered is clamped by the clamping ring surface 721 and the lens barrel 40 at any time. The two elastic protrusions 742 are interposed and positioned, so the situation that the position of the lens 53 to be aligned can be prevented from changing after the alignment operation is completed, relatively has the effect and advantage of effectively improving the efficiency of the alignment operation.

Claims (7)

1. the camera lens of an adjustable core is characterized in that:

The camera lens of this adjustable core comprises

One lens barrel, comprise second section of one first Duan Yuyi that is reverse setting, one from this first section along the perforation of an extension of central axis to this second section, one from an end face of this second section along the circle anchor ring and an abutment face that this central axis is provided with, reach one and cooperated the accommodation space that forms with this abutment face by this circle anchor ring;

One lens unit comprises at least one eyeglass that is installed with in this perforation, and a device treating in this accommodation space transfer the core eyeglass, and this waits to transfer the core eyeglass to have and be one first minute surface and one second minute surface of reverse setting, and the ring side face of this two minute surface of binding;

One leads and moves the unit, comprises being arranged between this abutment face and this first minute surface and sheathed several guide blocks and several guide grooves mutually; And

One adjustment part, comprise one with the coaxial sheathed adjustment ring of this second section, and one be molded in this adjustments ring and insert and put this and wait to transfer the core eyeglass to make this wait to transfer the core eyeglass to encircle the driving ring of off-centre with respect to this adjustments.

2. the camera lens of adjustable core as claimed in claim 1 is characterized in that:

This adjustment ring has an inner ring surface and the outer ring surface around a first axle, this driving ring have along one with second axis of this first axle off-centre the anchor ring that inserts and puts around moulding, and one link this and insert and put the driving ring end face of anchor ring and this inner ring surface, and this adjustment part comprises that also one is cooperated the sleeve part that forms and be sheathed on this second section by this inner ring surface with this driving ring end face.

3. the camera lens of adjustable core as claimed in claim 2 is characterized in that:

This driving ring also has end, two intervals, and this adjustment part also comprises at least one the bullet push piece that extends along a circumferencial direction from end, aforementioned interval.

4. the camera lens of adjustable core as claimed in claim 3 is characterized in that:

This bullet push piece has the elastic projection that a cantilever and stretches into this inner ring surface.

5. the camera lens of adjustable core as claimed in claim 1 is characterized in that:

This adjustment ring has an inner ring surface and the outer ring surface around a first axle, this driving ring have along one with the insert and put anchor ring of concentric second axis of this first axle around moulding, one links this inserts and puts the driving ring end face of anchor ring and this inner ring surface, and three spacer blocks, this adjustment part comprises that also one is cooperated the sleeve part that forms and be sheathed on this second section by this inner ring surface with this driving ring end face, and is molded between two spacer blocks and protrudes this and insert and put anchor ring and insert and put this and wait to transfer the core eyeglass to make this wait to transfer the core eyeglass with respect to three eccentric fixture blocks of this adjustment ring.

6. the camera lens of adjustable core as claimed in claim 1 is characterized in that:

This is led and moves the unit and comprise and be four guide blocks that equal angles is arranged at this abutment face, and is four guide grooves that equal angles is arranged at this first minute surface, and has the gap between each guide groove and the guide block.

7. the camera lens of adjustable core as claimed in claim 1 is characterized in that:

The camera lens of this adjustable core also comprises the viscose that injects this adjustment part and this lens barrel intersection.

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