CN220305164U - Lens test clamping device and lens detector - Google Patents

Abstract

The utility model discloses a lens test clamping device and a lens detector, wherein the lens test clamping device comprises a lens fixing seat, the middle part of the lens fixing seat is provided with a mounting through hole for mounting a lens, the front surface of the lens fixing seat is provided with two first avoidance grooves for exposing part of side walls of the front part of the lens, and the rear surface of the lens fixing seat is provided with two second avoidance grooves for exposing part of side walls of the rear part of the lens; the lens detector comprises a test platform, wherein the test platform is respectively provided with a light source, a photoelectric receiver and the lens test clamping device. The utility model aims to solve the problems of inconvenient clamping operation and overlong detection time of the existing lens fixing frame, and realize the detection function of maximizing the angle range of incident and refracted light rays so as to support the detection of reflection and refractive index at all angles.

Description

Lens test clamping device and lens detector

Technical Field

The utility model relates to lens testing equipment, in particular to a lens testing clamping device and a lens detector.

Background

In many important engineering applications and scientific research experiments, high-precision measurement of the transmissivity and reflectivity of an optical element is required, and in particular, the requirement of the laser field on the technical performance accuracy of a glass cavity sheet is very strict, and the transmissivity and reflectivity of a lens are important indexes for measuring the performance of a precision lens. In the light transmittance/reflectance detection, the lens frame is required to clamp the lens. At present, the lens frame in the market also can shelter from incident light and refraction reflection light of certain angle when fixed, leads to the lens to be unable to detect the reflection and the refracting index of full angle. In addition, the lens in the existing lens frame is inconvenient to install, and the detection time is too long.

Disclosure of Invention

The utility model aims to solve the technical problems: aiming at the problems in the prior art, the utility model provides a lens testing and clamping device and a lens detector, which aim to solve the problem that the lens cannot detect the reflection and the refractive index of the full angle due to the fact that incident, refractive and reflective light rays with larger angles and smaller angles are blocked by a lens frame, so as to realize the detection function of maximizing the angle range of the incident and refractive light rays of the lens.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a lens testing and clamping device, which comprises a lens fixing seat, wherein a mounting through hole for mounting a lens is formed in the middle of the lens fixing seat, two first avoidance grooves which are oppositely arranged are formed in the front surface of the lens fixing seat, the two first avoidance grooves are respectively formed in two sides of the radial direction of the mounting through hole, one side of each first avoidance groove in the radial direction extends to a side wall surface penetrating through the lens fixing seat, the other side of each first avoidance groove in the radial direction extends to be communicated with the mounting through hole, so that part of the side wall of the front part of the lens is exposed out of the first avoidance grooves, two second avoidance grooves are formed in the rear surface of the lens fixing seat, the two second avoidance grooves are in one-to-one correspondence with the two first avoidance grooves, and one side of each second avoidance groove in the radial direction extends to the side wall surface penetrating through the lens fixing seat and the other side wall in the radial direction is communicated with the mounting through hole, so that part of the side wall of the rear part of the lens is exposed out of the second avoidance grooves.

Optionally, a locking mechanism for locking and fixing the lens in the mounting through hole is arranged on the lens fixing seat.

Optionally, the locking mechanism includes the screw hole of seting up in lens fixing base side, and with screw hole screw thread complex locking screw, the locking screw passes behind the screw hole with lens butt.

Optionally, the lens fixing device further comprises a base, the upper end face of the base is provided with a slot, the slot penetrates through the front surface of the base, part of the slot penetrates through the rear surface of the base, the front surface and the rear surface of the lens are exposed out of the slot, the lens fixing seat is inserted into the slot, the front portion of the lens fixing seat protrudes out of the slot, the front portion of the lens is exposed out of the side wall of the mounting through hole, the rear surface of the base is provided with two third clearance grooves, the two third clearance grooves are in one-to-one correspondence with the two second clearance grooves, one side of the third clearance grooves in the radial direction extends to the side wall penetrating through the base, the other side of the third clearance grooves in the radial direction extends to be communicated with the slot, and the front surface of the lens extends to the rear portion of the lens, the side wall of the lens is exposed out of the mounting through hole, and the side wall of the slot is exposed out of the slot.

Optionally, a threaded through hole is formed in the rear surface of the base, and a fastening screw for fastening the lens fixing seat to the base is arranged in the threaded through hole.

Optionally, the tip of fastening screw is equipped with the mounting hole, the opening part of mounting hole inlays and is equipped with the roof pressure ball, the inside of mounting hole is equipped with the spring, spring one end is contradicted in the bottom of mounting hole, the other end links to each other with the roof pressure ball, the screw thread through-hole screw thread fit and roof pressure ball roof pressure on the lens fixing base on fastening screw and the base.

Optionally, two sliding grooves are arranged on the side wall of the slot in a relative manner, sliding block strips are arranged on two sides of the lens fixing seat, and the sliding block strips of the lens fixing seat are arranged in the corresponding sliding grooves in a sliding manner so as to be connected with the base in a sliding insertion manner.

Optionally, the second clearance groove extends towards the corresponding slider bar to a side wall surface penetrating through the slider bar.

Optionally, the spout is arranged along vertical direction and runs through the up-and-down terminal surface of base, be located the lower terminal surface of spout on the base and be fixed with the layer board that is used for lifting fixed lens fixing base.

The utility model also provides a lens detector which comprises a test platform, wherein the test platform is respectively provided with a light source, a photoelectric receiver and the lens test clamping device.

Compared with the prior art, the utility model has the following advantages: according to the utility model, the front surface of the lens fixing seat is provided with the two first avoidance grooves so as to expose part of the side wall of the front part of the lens, the rear surface of the lens fixing seat is provided with the two second avoidance grooves so as to expose part of the side wall of the rear part of the lens, and the lens fixing seat is designed to be provided with the avoidance groove structures symmetrically arranged at the left side and the right side, and the avoidance groove structures expose part of the front side wall and the rear side wall of the lens, so that in the detection process of the lens, light rays with larger incidence angles can be incident from the first avoidance grooves, reflected light rays with larger reflection angles can be emitted from the first avoidance grooves so as to be detected, and refractive light rays with larger refraction angles can be emitted from the second avoidance grooves so as to be detected, thereby realizing the functions of maximized detection of the angle ranges of the incident, reflected and refractive light rays and improving the accuracy of lens reflectivity detection.

Drawings

Fig. 1 is a schematic perspective view illustrating a lens mounted on a lens holder according to an embodiment of the utility model.

Fig. 2 is a schematic perspective view of a lens holder according to an embodiment of the utility model.

Fig. 3 is a schematic view of a front side perspective structure of a lens mounted on a lens holder according to an embodiment of the present utility model.

Fig. 4 is a schematic view showing a rear side perspective structure of a lens mounted on a lens holder according to an embodiment of the present utility model.

Fig. 5 is a schematic perspective view of the front surface of the base according to the embodiment of the utility model.

Fig. 6 is a schematic perspective view of the rear surface side of the base according to the embodiment of the present utility model.

Fig. 7 is a schematic perspective view of a front side direction of a lens testing and clamping device according to an embodiment of the present utility model.

Fig. 8 is a schematic perspective view of a back side direction of a lens testing and clamping device according to an embodiment of the present utility model.

Fig. 9 is a schematic front view of a lens testing and clamping device according to an embodiment of the present utility model.

Fig. 10 is a schematic view of the cross-sectional A-A structure of fig. 9.

Fig. 11 is a schematic rear view of a lens testing and clamping device according to an embodiment of the present utility model.

FIG. 12 is a schematic view of the cross-sectional structure B-B of FIG. 11.

Legend description: 1. a base; 11. a slot; 12. a third clearance groove; 13. a chute; 14. a threaded through hole; 2. a lens fixing seat; 21. mounting through holes; 22. a first clearance groove; 23. a second clearance groove; 24. a threaded hole; 25. a slider bar; 4. a fastening screw; 41. a mounting hole; 42. pressing the ball; 43. a spring; 5. and a supporting plate.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the lens testing and clamping device of the present embodiment includes a lens fixing base 2, a mounting through hole 21 for mounting a lens is provided in the middle of the lens fixing base 2, two first avoidance grooves 22 disposed opposite to each other are provided on the front surface of the lens fixing base 2, the two first avoidance grooves 22 are disposed on two sides of the radial direction of the mounting through hole 21, one side of the first avoidance groove 22 in the radial direction extends to a side wall surface penetrating the lens fixing base 2, and the other side in the radial direction extends to communicate with the mounting through hole 21, so that a part of a side wall (as shown in fig. 1 a) of the front portion of the lens is exposed to the first avoidance groove 22, two second avoidance grooves 23 are provided on the rear surface of the lens fixing base 2, the two second avoidance grooves 23 are in one-to-one correspondence with the two first avoidance grooves 22, and one side of the second avoidance grooves 23 extend to a side wall surface penetrating the lens fixing base 2 in the radial direction, and the other side in the radial direction extends to communicate with the mounting through hole 21, so that a part of a side wall (as shown in fig. 4 a 1) of the rear portion of the lens is exposed to the second avoidance grooves 23. Through the structure, the lens fixing seat 2 is designed to be provided with the side wall around the side wall exposes around the part of lens to the side wall structure is kept away to the side wall structure makes, thereby the lens is in the testing process, the great light of incident angle can be followed first side wall incidence, reflection angle great reflection light can be through first side wall groove ejection in order to be detected, and refraction angle great refraction light can be through the second side wall groove ejection in order to be detected, in order to realize the function of incidence, reflection and the biggest detection of refraction light angle scope, improve the precision that the lens transparent reflectivity detected.

The lens may be directly inserted and fixed in the mounting through hole 21 to facilitate mounting and dismounting of the lens. Further, it is contemplated that such a manner may tend to loosen the lens, thereby affecting the accuracy of the lens test. In order to solve the above-mentioned problem, the lens fixing base 2 in this embodiment is provided with a locking mechanism for locking and fixing the lens in the mounting through hole 21, thereby being beneficial to improving the firmness of lens mounting. Of course, the number of locking mechanisms may be single or multiple as desired.

As an alternative embodiment, as shown in fig. 2 and 4, the locking mechanism in this embodiment includes a threaded hole 24 formed in a side surface of the lens fixing base 2, and a locking screw that is screwed with the threaded hole 24, and abuts against the lens after passing through the threaded hole 24, so as to lock and fix the lens in the mounting through hole 21. In addition, the locking mechanism 3 can also adopt a locking rod and a through hole inserted in the lens fixing seat 2, the locking rod is inserted in the through hole and is provided with a spring between the locking rod and the lens fixing seat 2 so as to provide locking force for the locking rod, and the lens is pressed and fixed in the mounting through hole 21.

As shown in fig. 5 and 6, the lens testing and clamping device of the present embodiment further includes a base 1, the upper end surface of the base 1 is provided with a slot 11, the slot 11 penetrates through the front surface of the base 1 and partially penetrates through the rear surface of the base 1, so that the front and rear surfaces of the lens are exposed out of the slot 11, the lens fixing seat 2 is inserted into the slot 11, the front portion of the lens fixing seat 2 protrudes out of the slot 11, so that a portion of the side wall of the front portion of the lens exposed out of the mounting through hole 21 is exposed out of the slot 11, the rear surface of the base 1 is provided with two third avoidance grooves 12, the two third avoidance grooves 12 are in one-to-one correspondence with the two second avoidance grooves 23, and one side of the third avoidance grooves 12 in the radial direction extends to the side wall penetrating through the base 1, and the other side in the radial direction extends to be communicated with the slot 11, and extends toward the front surface of the base 1 to the portion of the side wall exposed out of the mounting through hole 21. After the lens is detected, if a new lens is required to be detected, the lens fixing seat 2 is required to be detached from the detecting instrument, and the position of the lens fixing seat 2 on the detecting instrument is subsequently readjusted after the new lens is installed, so that the lens orientation meets the detection requirement. As shown in fig. 7, 8, 9, 10, 11 and 12, in this embodiment, by adding the base 1 with the slot 11, the base 1 is fixed on the detecting instrument, and the base 1 and the lens fixing seat 2 are assembled in a plug-in manner (the lens fixing seat 2 is inserted into the slot 11), so that when a new detecting lens is replaced, only the lens fixing seat 2 needs to be drawn out from the base 1, and after the lens is installed outside, the lens fixing seat 2 is inserted into the base 1, thereby facilitating the installation of the lens. Moreover, when the base 1 is inserted into the lens fixing seat 2, the front part of the lens fixing seat 2 protrudes out of the slot 11, and two symmetrical avoidance grooves 12 are also formed in the rear surface of the base 1, so that part of the side wall of the front and rear parts of the lens, which is exposed out of the mounting through hole, is exposed out of the slot 11, and the base is prevented from shielding incident, reflected and refracted light rays with larger angles, so that the function of detecting the angle ranges of the incident, reflected and refracted light rays to the greatest extent is realized. B and d in fig. 10 are boundaries of the angular ranges of incident, reflected and refracted light rays, which are shown as c in fig. 10.

As shown in fig. 12, the rear surface of the base 1 is provided with a threaded through hole 14, and a fastening screw 4 for tightly fixing the lens fixing seat 2 on the base 1 is arranged in the threaded through hole 14, so that the connection between the base 1 and the lens fixing seat 2 is firmer and more reliable on the basis of sliding fit, and the accuracy of lens detection is improved.

As shown in fig. 12, the end of the fastening screw 4 is provided with a mounting hole 41, the opening of the mounting hole 41 is embedded with a pressing ball 42, a spring 43 is arranged in the mounting hole 41, one end of the spring 43 is abutted against the bottom of the mounting hole 41, the other end of the spring is connected with the pressing ball 42, the fastening screw 4 is in threaded fit with the threaded through hole 14 on the base 1, the pressing ball 42 is pressed against the lens fixing seat 2, and the vertical direction of the sliding surface can be ensured to be firm and reliable between the base 1 and the lens fixing seat 2 through the elasticity of the spring 43, and sliding between the base 1 and the lens fixing seat 2 is not influenced.

As shown in fig. 5 and 6, two sliding grooves 13 are arranged on the side wall of the slot 11, two sliding blocks 25 are arranged on two sides of the lens fixing seat 2, and the sliding blocks 25 of the lens fixing seat 2 are arranged in the corresponding sliding grooves 13 in a sliding manner so as to realize sliding connection with the base 1, so that the base 1 and the lens fixing seat 2 slide stably and reliably. In this embodiment, the second avoidance slot 23 extends toward the corresponding slider bar 25 to penetrate through the sidewall surface of the slider bar 25, so as to avoid shielding of the base on incident, reflected and refracted light rays with larger angles, and realize the function of maximizing the detection of the angle ranges of the incident, reflected and refracted light rays.

As shown in fig. 7, 8 and 10, in this embodiment, the chute 13 is arranged along the vertical direction and penetrates through the upper and lower end surfaces of the base 1, and the lower end surface of the base 1 located on the chute 13 is fixed with a supporting plate 5 for lifting and fixing the lens fixing seat 2, so as to lift and fix the lens fixing seat 2 on the inserted base 1.

It should be noted that, in the description of the present embodiment, the terms "front" and "rear" in the front and rear surfaces are used to express the relative relationship between the above surfaces or end surfaces, and the terms "upper" and "lower" in the upper and lower end surfaces are not to be construed as describing the absolute positional relationship of the above surfaces or end surfaces, and may have different expressions under different azimuth angles. The "first", "second", and "third" of the first, second, and third clearance grooves 22, 23, and 12 are used to distinguish between the clearance grooves, and should not be construed as a limitation on the naming or function of the clearance grooves, so that the naming may be performed in other ways that distinguish between the clearance grooves, if necessary.

In addition, this embodiment still provides a lens detector, including test platform, be equipped with light source, photoelectric receiver on the test platform respectively to and aforesaid lens test clamping device. When the lens fixing frame is in operation, light emitted by the light source is received by the photoelectric receiver after being refracted/reflected by the lens fixed on the lens fixing frame, so that some detection of the lens can be realized through the light intensity received by the photoelectric receiver, including refractive index, reflectivity detection and the like.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. The utility model provides a lens test clamping device, its characterized in that, includes lens fixing base (2), the middle part of lens fixing base (2) is equipped with installation through-hole (21) that are used for installing the lens, the front surface of lens fixing base (2) is equipped with two first keep away position groove (22) of relative arrangement, and two first keep away position groove (22) are established respectively in the both sides of installation through-hole (21) radial direction, and first keep away position groove (22) are followed one side of radial direction extends to the lateral wall that runs through lens fixing base (2), and follows the opposite side of radial direction extends to and installs through-hole (21) intercommunication to make the partial lateral wall at lens front portion expose in first keep away position groove (22), the rear surface of lens fixing base (2) is equipped with two second keep away position groove (23), and two second keep away position groove (23) and two first keep away position groove (22) one-to one, and one side of radial direction extends to the lateral wall that runs through lens fixing base (2), and follows the opposite side of radial direction extends to the lateral wall that runs through lens fixing base (2) to the lateral wall of radial direction (21), and makes the partial lateral wall that keeps away in the rear portion of lens (21) and expose.

2. The lens test clamping device according to claim 1, wherein the lens fixing seat (2) is provided with a locking mechanism for locking and fixing the lens in the mounting through hole (21).

3. The lens test clamping device according to claim 2, wherein the locking mechanism comprises a threaded hole (24) formed in the side surface of the lens fixing seat (2), and a locking screw in threaded fit with the threaded hole (24), and the locking screw abuts against the lens after penetrating through the threaded hole (24).

4. A lens testing and clamping device according to any one of claims 1-3, further comprising a base (1), wherein the upper end surface of the base (1) is provided with a slot (11), the slot (11) penetrates through the front surface of the base (1) and partially penetrates through the rear surface of the base (1), so that the front and rear surfaces of the lens are exposed out of the slot (11), the lens fixing seat (2) is inserted into the slot (11), the front portion of the lens fixing seat (2) is protruded out of the slot (11), so that a part of the side wall of the front portion of the lens exposed out of the mounting through hole (21) is exposed out of the slot (11), the rear surface of the base (1) is provided with two third avoidance grooves (12), the two third avoidance grooves (12) are in one-to-one correspondence with the two second avoidance grooves (23), one side of the third avoidance grooves (12) extends to the side wall penetrating through the base (1) along the radial direction, and the other side wall along the radial direction extends to the side wall which is in communication with the slot (11) and extends to the exposed out of the front surface of the base (1).

5. The lens test clamping device according to claim 4, wherein a threaded through hole (14) is formed in the rear surface of the base (1), and a fastening screw (4) for tightly fixing the lens fixing seat (2) on the base (1) is arranged in the threaded through hole (14).

6. The lens test clamping device according to claim 5, wherein the end part of the fastening screw (4) is provided with a mounting hole (41), a jacking ball (42) is embedded in the opening part of the mounting hole (41), a spring (43) is arranged in the mounting hole (41), one end of the spring (43) is abutted against the bottom of the mounting hole (41), the other end of the spring is connected with the jacking ball (42), the fastening screw (4) is in threaded fit with a threaded through hole (14) in the base (1), and the jacking ball (42) is jacked on the lens fixing seat (2).

7. The lens test clamping device according to claim 4, wherein two sliding grooves (13) are formed in the side wall of the slot (11) and are oppositely arranged, sliding block strips (25) are arranged on two sides of the lens fixing seat (2), and the sliding block strips (25) of the lens fixing seat (2) are slidably arranged in the corresponding sliding grooves (13) so as to be connected with the base (1) in a sliding insertion manner.

8. The lens test fixture of claim 7, wherein said second clearance groove (23) extends toward the respective slider bar (25) to a sidewall surface extending through said slider bar (25).

9. The lens test clamping device according to claim 8, wherein the sliding groove (13) is arranged along the vertical direction and penetrates through the upper end face and the lower end face of the base (1), and a supporting plate (5) for lifting and fixing the lens fixing seat (2) is fixed on the lower end face of the sliding groove (13) on the base (1).

10. A lens detector, comprising a test platform, wherein the test platform is provided with a light source, a photoelectric receiver and the lens test clamping device according to any one of claims 1-9.