CN205748880U - A kind of three axle optical lens regulation testers - Google Patents

Abstract

The utility model discloses a three-axis optical lens adjustment tester, which comprises: a frame, an object distance adjustment mechanism, an image distance adjustment mechanism and a rotating lens seat. The top of the frame is provided with a light source frame for installing a light source; The distance adjustment mechanism includes a horizontal guide rail arranged on the frame, an upper screw position finder bracket slidably connected to the horizontal guide rail, and an upper screw position finder installed on the top of the upper screw position finder bracket. An optical fiber seat is arranged in the opening of the positioning instrument bracket, and the back of the optical fiber seat is slidably connected to the upper screw positioning instrument bracket through a vertical guide rail, and the bottom of the optical fiber seat is connected to the upper spiral measuring instrument bracket through a first spring. The bottom of the positioner bracket, the upper screw positioner passes through the top of the upper screw positioner bracket and is held against the fiber seat. The utility model has the advantages of simple structure and ingenious design, and can realize convenient three-axis direction test adjustment.

Description

A three-axis optical lens adjustment tester

technical field

The utility model relates to the field of optical detection equipment, in particular to a three-axis optical lens adjustment tester.

Background technique

Optical lens is an essential part of machine vision system, which directly affects the quality of imaging. Optical lenses can be divided into short-focus lenses, medium-focus lenses, and telephoto lenses in terms of focal length; wide-angle, standard, and telephoto lenses in terms of field of view; fixed-aperture fixed-focus lenses and manual aperture fixed-focus lenses in terms of structure. Auto-iris fixed-focus lenses, manual zoom lenses, auto-zoom lenses, auto-iris electric zoom lenses, electric three-variable (aperture, focal length, and focus) lenses, etc.

In the field of optical fiber detection, optical lenses are also essential equipment. Because the optical fiber is very thin, in order to obtain a better detection effect, it is necessary to test the optical lens, and the existing optical lens test device cannot easily realize the test adjustment of the three-axis direction of the optical lens.

Therefore, the prior art still needs to be improved and developed.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a three-axis optical lens adjustment tester, aiming at solving the problem that the existing optical lens cannot realize simple three-axis direction test adjustment.

The technical scheme of the utility model is as follows:

A three-axis optical lens adjustment tester, which includes: a frame, an object distance adjustment mechanism for adjusting the object distance, an image distance adjustment mechanism for adjusting the height of an imaging plate, and a rotating shaft for adjusting the rotation of the lens seat A lens holder, the top of the frame is provided with a light source frame for installing a light source; the object distance adjustment mechanism includes a horizontal guide rail arranged on the frame, an upper screw positioner bracket that is slidably connected to the horizontal guide rail and installed on the The upper spiral position measuring instrument on the top of the upper spiral position measuring instrument support, the opening of the upper spiral position measuring instrument support is provided with an optical fiber seat, and the back of the optical fiber seat is slidably connected to the upper spiral position measuring instrument through a vertical guide rail. On the instrument bracket, the bottom of the optical fiber seat is connected to the bottom of the upper screw positioner bracket through the first spring, and the upper screw positioner passes through the top of the upper screw positioner bracket and is held against the above the fiber holder.

In the three-axis optical lens adjustment tester, wherein the object distance adjustment mechanism further includes a spring stopper installed on the inner side of the horizontal guide rail, and is installed between the spring stopper and the upper screw positioner bracket. The second spring between them and the side screw position finder installed on the side of the frame, the side screw position finder is against the outer side of the upper screw position finder bracket.

The three-axis optical lens adjustment tester, wherein the image distance adjustment mechanism includes: an imaging plate sliding frame installed on the frame through a linear guide rail, arranged above the imaging plate sliding frame and fixed on the frame on the fixed plate; the bottom of the imaging plate sliding frame is held against the frame by the third spring, and the top of the imaging plate sliding frame is held against the bottom of the fixed plate by the fourth spring. A lower screw positioner is arranged between the imaging plate sliding frame and the fixed plate, and the imaging plate is installed above the imaging plate sliding frame.

In the three-axis optical lens adjustment tester, a through hole is arranged on the fixed plate, and the imaging plate is connected and installed above the sliding frame of the imaging plate through a plurality of connecting rods passing through the through holes.

The three-axis optical lens adjustment tester, wherein the rotating lens seat includes: a shaft sleeve, bearings installed on the upper and lower sides of the shaft sleeve, the shaft center installed in the shaft sleeve, and the bush installed at the bottom of the shaft center, The lens mount is installed above the axis.

In the three-axis optical lens adjustment tester, a shaft cover is installed above the lens holder.

In the three-axis optical lens adjustment tester, a slider lock and a first screw for resisting the slider lock are installed on the lens seat.

In the three-axis optical lens adjustment tester, a plurality of second screws for leveling the lens seat are arranged on the upper surface of the shaft cover.

In the three-axis optical lens adjustment tester, a plurality of third screws for locking the lens mount are arranged on the side surface of the shaft cover.

In the three-axis optical lens adjustment tester, a plurality of fifth springs are arranged between the lens seat and the axis.

Beneficial effects: the utility model is simple in structure and ingenious in design, and can realize simple three-axis direction test and adjustment, can accurately measure the object distance and image distance of the lens, and can effectively judge whether the imaging of the lens is qualified, which is the first step in the early research and development of the lens. It is a strong basis for judging whether the lens is qualified, and also provides effective data for later assembly.

Description of drawings

Fig. 1 is a partial cross-sectional view of a preferred embodiment of a three-axis optical lens adjustment tester of the present invention.

Fig. 2 is a schematic structural view of a preferred embodiment of a three-axis optical lens adjustment tester of the present invention.

Fig. 3 is a partial structural schematic diagram of a preferred embodiment of a three-axis optical lens adjustment tester of the present invention.

Fig. 4 is a partial structural schematic diagram of the object distance adjusting mechanism in the present invention.

Fig. 5 is a structural schematic diagram of another part of the object distance adjusting mechanism in the present invention.

FIG. 6 is a schematic structural diagram of the image distance adjustment mechanism in the present invention.

Fig. 7 is a schematic diagram of the structure of the rotating lens holder in the utility model.

detailed description

The utility model provides a three-axis optical lens adjustment tester. In order to make the purpose, technical solution and effect of the utility model clearer and clearer, the utility model will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, Fig. 1 is a structural schematic diagram of a preferred embodiment of a three-axis optical lens adjustment tester of the present invention, as shown in the figure, it includes: a frame 11, an object distance adjustment mechanism for adjusting the object distance , an image distance adjustment mechanism for adjusting the height of the imaging plate and a rotating lens holder (that is, part A in Fig. 2 ) for adjusting the rotation of the lens holder, the top of the frame 11 is provided with a light source holder for installing the light source 1 113 (shown in conjunction with FIG. 2 ); the object distance adjustment mechanism includes a horizontal guide rail 15 arranged on the frame 11 , and an upper screw positioner bracket 8 slidably connected to the horizontal guide rail 15 (shown in conjunction with FIG. 4 ) And the upper spiral positioner 7 installed on the top of the upper spiral positioner support 8, the opening of the upper spiral positioner support 8 is provided with an optical fiber seat 2, and the back side of the optical fiber seat 2 passes through the vertical guide rail 13 Slidingly connected on the support 8 of the upper screw positioner, the bottom of the fiber holder 2 is connected to the bottom of the support 8 of the upper screw positioner 8 through the first spring 14, and the upper screw positioner passes through the The top of the above-mentioned spiral positioner bracket 8 is against the above-mentioned fiber holder 2 .

The working principle of the utility model is: the light source 1 illuminates the imaging object, and the image is presented on the imaging plate 6 (shown in conjunction with FIG. 6 ) through the lens. The centers of the light source 1 (such as a red light), the lens holder 25 (shown in conjunction with FIG. 7 ), and the imaging plate 6 in the present utility model are all on the same vertical line. The light from the light source 1 is refracted to the lens through the optical fiber and then enlarged on the imaging plate 6 through the lens.

In the present utility model, as shown in Fig. 4, the described upper screw position measuring instrument bracket 8 has an opening, an upper support plate 81 is provided at the upper part of the opening, and a lower support plate 82 is provided at the lower part of the opening, and the vertical guide rail 13 is arranged on the The inner side of the opening, the fiber holder 2 slides on the vertical guide rail 13. The first spring 14 is installed between the lower support plate 82 and the fiber holder 2, the upper screw positioner 7 is installed above the upper support plate 81, and passes through the upper support plate 81 to resist on the top of the fiber holder 2.

Since the back of the fiber optic seat 2 is slidably connected to the upper screw position finder support 8 through the vertical guide rail 13, when the upper screw position finder 7 is rotated, when the upper screw position finder 7 is pressed by a certain direction rotation, then the first spring 14 at the bottom of the fiber holder 2 will push the fiber holder 2 upwards by elastic restoring force, so that the fiber holder 2 will rise. When the upper screw positioner 7 rotates in the opposite direction, the top of the fiber holder 2 is pressed down by the upper screw positioner 7 and moves downward, so that the fiber holder 2 compresses the first spring 14 to realize the decline of the fiber holder 2 . During the rising and falling process of the fiber holder 2 , the fiber holder 2 is realized by sliding on the vertical guide rail 13 . Through the above mechanism, it is possible to adjust the height of the fiber holder 2 .

Further, as shown in FIG. 3 , the object distance adjustment mechanism also includes a spring stopper 19 installed inside the horizontal guide rail 15, installed between the spring stopper 19 and the upper screw positioner bracket 8 The second spring 20 (as shown in FIG. 5 ) and the side screw position gauge 10 installed on the side of the frame 11, the side screw position gauge 10 is against the outer side of the upper screw position gauge bracket 8 .

Specifically, a side support plate 101 is arranged on the outer side of the frame 11, and the side support plate 101 is located on the outer side (one side) of the upper screw positioner bracket 8, and on the upper screw positioner bracket A spring stopper 19 is installed on the inner side (opposite other side) of 8, so that the upper screw position finder support 8 is just arranged between the spring stopper 19 and the side support plate 101. In addition, the second spring 20 is located between the spring stopper 19 and the upper screw positioner bracket 8, and the side screw positioner 10 is arranged on the outside of the side support plate 101 and passes through The side support plate 101 bears against the upper screw positioner bracket 8 .

Since the whole of the upper screw position finder bracket 8 is slidably connected to the horizontal guide rail 15, when the side screw position finder 10 is rotated, when the side screw position finder 10 moves in a certain direction Rotate, then the second spring 20 will use the elastic restoring force to push the upper screw positioner bracket 8 outward, so that the upper screw positioner bracket 8 will move to the right (viewing angle in FIG. 5 ). When the side screw positioner 10 rotates in the opposite direction, the right side of the upper screw positioner bracket 8 is pressed by the side screw positioner 10 and moves to the left, so that the upper screw positioner bracket 8 compresses the second spring 20 , to realize the leftward movement of the upper screw positioner bracket 8 (viewing angle in Fig. 5). In the process of moving left and right of the upper screw positioner support 8, the upper screw positioner support 8 is all realized by sliding on the horizontal guide rail 15. Through the above mechanism, the horizontal position of the fiber holder 2 can be adjusted. In this way, the side screw position finder 10 can be used to find the center position of the imaging object relative to the lens.

Further, as shown in FIG. 6 , the image distance adjustment mechanism includes: an imaging plate sliding frame 12 installed on the frame 11 through a linear guide rail 17, arranged above the imaging plate sliding frame 12 and fixed on the frame 11 The fixed plate 121 on the top; the bottom of the imaging plate sliding frame 12 is resisted on the frame 11 by the third spring 182, and the top of the imaging plate sliding frame 12 is resisted on the fixed plate by the fourth spring 181. The bottom of the plate 121 is provided with a lower screw positioner 5 between the imaging plate sliding frame 12 and the fixed plate 121 , and the imaging plate 6 is installed above the imaging plate sliding frame 12 .

There is a fixed block 111 extending upwards from the bottom of the frame 11, and the function of the fixed block 111 is to install the linear guide rail 17 (set in the vertical direction), so that the imaging plate sliding frame 12 can be positioned on the linear guide rail. 17 Swipe up and down. The fixed plate 121 is also fixed on the frame 11, and only the imaging plate sliding frame 12 is movable. Specifically, the bottom of the imaging plate sliding frame 12 is held against the frame 11 by the third spring 182. Bottom, the top of the imaging plate sliding frame 12 is held against the bottom of the fixing plate 121 by the fourth spring 181 . In this way, the imaging plate sliding frame 12 can slide up and down between the bottom of the frame 11 and the fixing plate 121 . The lower screw positioner 5 is disposed above the fixing plate 121 , passes through the fixing plate 121 , and abuts against the imaging plate sliding frame 12 .

When rotating the lower screw positioner 5, if the lower screw positioner 5 rotates in a certain direction, the third spring 182 and the fourth spring 181 will use the elastic restoring force to control the imaging plate sliding frame 12 to move upward. Movement, if the lower screw positioner 5 rotates in the opposite direction, the imaging plate sliding frame 12 is subjected to the downward force from the lower screw positioner 5, compresses the third spring 182, and the imaging plate sliding frame 12 moves downward, so that Adjustment of the image distance can be realized. And springs are respectively adorned up and down on the imaging plate sliding frame 12, which is conducive to the balance of the imaging plate sliding frame 12.

Specifically, the fixing plate 121 is provided with a through hole, and the imaging plate 6 is connected and installed above the imaging plate sliding frame 12 through a plurality of connecting rods 16 passing through the through hole.

Two connecting rods 16 can be provided, so that during the up and down movement of the imaging plate sliding frame 12, the imaging plate 6 will be driven to move up and down to realize the adjustment of the image distance.

Further, as shown in FIG. 7 , the rotating lens holder includes: a shaft sleeve 28, bearings installed on the upper and lower sides of the shaft sleeve 28, the shaft center installed in the shaft sleeve 28, and the bushing 29 installed at the bottom of the shaft center 27, The lens mount 25 is installed above the axis 27 . The bearings can be divided into an upper bearing 24 mounted on the top of the shaft sleeve 28 and a lower bearing 31 mounted on the bottom of the shaft sleeve 28 .

Further, a shaft cover 21 is installed above the lens mount 25 , and the shaft cover 21 can be used to protect and adjust the lens mount 25 .

Further, the lens holder 25 is equipped with a slider lock 23 and a first screw 22 for resisting the slider lock 23 . The function of the slider lock 23 is to lock the inside of the lens mount 25 so that the inside cannot rotate. Specifically, as shown in FIG. Correspondingly, an adapted V-shaped structure can be provided inside the lens holder 25. When the two are in contact with each other, the inside of the lens holder 25 will not rotate. The adjustment below refers to the adjustment of the lens holder 25 itself. .

Further, several second screws for leveling the lens mount 25 are provided on the upper surface of the shaft cover 21 . For example, three second screws are evenly arranged, and the lens holder 25 can be adjusted to be level by adjusting the three second screws on the upper surface of the shaft cover 21 .

Further, the side surface of the shaft cover 21 is provided with several third screws for locking the lens mount 25 . For example, three third screws are evenly arranged, and the three third screws on the side surface of the shaft cover 21 can be adjusted to adjust the lens holder 25 to the center of rotation and lock it. The lens holder 25 of the present invention can rotate 360°, and is mainly used to detect the imaging effect of the lens at any position within 360°.

Further, several fifth springs 26 are arranged between the lens mount 25 and the shaft center 27 , and the function of the fifth springs 26 is to play a buffering role to facilitate the adjustment of the lens mount 25 . The top of the lens mount 25 can be evenly distributed with several mounting positions (eg, 4), and the fifth springs 26 can be respectively installed therein.

When installing, install the upper bearing 24 and the lower bearing 31 on the top and bottom of the shaft sleeve 28 respectively, then install the shaft center on the shaft sleeve 28, then put the bushing 29 on the shaft center, and connect the shaft with the nut 30 Lock the core 27, install the spring 26 on the installation position of the axis 27, install the slider lock 23 on the lens holder 25, install the lens holder 25 above the axis, and then tighten the axis cover 21 and the axis 27 together Adjust the 3 second screws on the upper surface of the shaft cover 21 to level the lens holder 25, and then adjust the 3 third screws on the side surface of the shaft cover 21 to adjust the lens holder 25 to the center of rotation and lock it.

To sum up, the utility model has simple structure and ingenious design, which can realize simple three-axis direction test adjustment, can accurately measure the object distance and image distance of the lens, and can effectively judge whether the imaging of the lens is qualified. It is a strong basis for judging whether the lens is qualified during research and development, and also provides effective data for later assembly.

It should be understood that the application of the present utility model is not limited to the above examples, and those skilled in the art can improve or change according to the above description, and all these improvements and changes should belong to the protection of the appended claims of the present utility model scope.

Claims (10)

1. a three-axis optical lens adjustment tester, is characterized in that, comprises: frame, the object distance adjusting mechanism for adjusting the object distance, the image distance adjusting mechanism for adjusting the height of the imaging plate and for carrying out lens mount The rotating lens seat for rotation adjustment, the top of the frame is provided with a light source frame for installing the light source; the object distance adjustment mechanism includes a horizontal guide rail arranged on the frame, an upper screw positioner slidably connected to the horizontal guide rail The bracket and the upper screw positioner installed on the top of the upper screw positioner bracket, the opening of the upper screw positioner bracket is provided with a fiber optic seat, and the back of the fiber optic seat is slidably connected to the On the upper spiral locator bracket, the bottom of the fiber seat is connected to the bottom of the upper helical locator bracket through the first spring, and the upper helical locator passes through the top of the upper helical locator bracket and Support above the fiber holder. 2. The three-axis optical lens adjustment tester according to claim 1, wherein the object distance adjustment mechanism also includes a spring stop installed on the inside of the horizontal guide rail, a spring stop installed between the spring stop and the The second spring between the above-mentioned helical positioner brackets and the side helical positioner installed on the side of the frame, the side helical positioner is against the outer side of the upper helical positioner bracket. 3. The three-axis optical lens adjustment tester according to claim 1, wherein the image distance adjustment mechanism comprises: an imaging plate sliding frame installed on the frame through a linear guide rail, and an imaging plate sliding frame arranged on the imaging plate The fixed plate above the sliding frame and fixed on the frame; the bottom of the imaging plate sliding frame is held against the frame by the third spring, and the top of the imaging plate sliding frame is held against the frame by the fourth spring. The bottom of the fixed plate, a lower screw positioner is arranged between the imaging plate sliding frame and the fixed plate, and the imaging plate is installed above the imaging plate sliding frame. 4. The three-axis optical lens adjustment tester according to claim 3, wherein the fixed plate is provided with a through hole, and the imaging plate is connected on the Above the imaging plate slide shelf. 5. The three-axis optical lens adjustment tester according to claim 1, wherein the rotating lens holder comprises: a shaft sleeve, bearings installed on the upper and lower sides of the shaft sleeve, the shaft center in the installation shaft sleeve, the installation Bushing at the bottom of the axle, the lens mount is mounted above the axle. 6 . The three-axis optical lens adjustment tester according to claim 5 , wherein a shaft cover is installed above the lens holder. 7 . 7 . The three-axis optical lens adjustment tester according to claim 5 , wherein a slider lock and a first screw for resisting the slider lock are installed on the lens holder. 8 . 8. The three-axis optical lens adjustment tester according to claim 6, characterized in that, the upper surface of the shaft cover is provided with a plurality of second screws for leveling the lens mount. 9. The three-axis optical lens adjustment tester according to claim 6, characterized in that, the side surface of the shaft cover is provided with several third screws for locking the lens mount. 10 . The three-axis optical lens adjustment tester according to claim 5 , wherein a plurality of fifth springs are arranged between the lens holder and the axis. 11 .