CN216926025U

CN216926025U - Optical lens detection tool

Info

Publication number: CN216926025U
Application number: CN202220088116.5U
Authority: CN
Inventors: 施纯乾; 辛历东; 林青
Original assignee: Xiamen Leading Optics Co Ltd
Current assignee: Xiamen Leading Optics Co Ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-07-08
Anticipated expiration: 2032-01-13

Abstract

The utility model discloses an optical lens detection jig which comprises a main barrel, a front base, a rear base and an aperture, wherein the front base and the rear base are respectively arranged at two ends of the main barrel, the front base is provided with a front fixing groove used for matching and fixing a lens front group, the rear base is provided with a rear fixing groove used for matching and fixing a lens rear group, the aperture is fixed in the main barrel, the front fixing groove, the rear fixing groove and the aperture are coaxial with the main barrel, and the main barrel is provided with an exhaust through hole. The optical lens detection jig can realize rapid imaging by simulating the optical imaging structure, and can be convenient for technicians to rapidly check whether the coaxiality and the parallelism of the lens structure influence the optical performance by ensuring the parallelism and the coaxiality between the groups, so as to facilitate subsequent structure adjustment and effectively save development time.

Description

Optical lens detection tool

Technical Field

The utility model relates to the technical field of optical lenses, in particular to an optical lens detection jig.

Background

The existing multi-element all-in-one machine lens is usually positioned by matching a guide rod hole with a guide rod, and a screw rod drives a pulley to focus. The relative parallelism and coaxiality of the front and rear groups of the lens with the structure are generally poor, and technicians cannot judge whether the optical performance of the lens is influenced by the relative parallelism and coaxiality of the front and rear groups.

In view of this, the inventor of the present application invented an optical lens inspection jig.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an optical lens detection jig which is simple in structure, reasonable in design and convenient to use.

In order to realize the purpose, the utility model adopts the following technical scheme: an optical lens detection jig comprises a main barrel, a front base, a rear base and an aperture, wherein the front base and the rear base are respectively arranged at two ends of the main barrel, the front base is provided with a front fixing groove used for matching with a front group of a fixed lens, the rear base is provided with a rear fixing groove used for matching with a rear group of the fixed lens, the aperture is fixed in the main barrel, the front fixing groove, the rear fixing groove and the aperture are coaxial with the main barrel, and the main barrel is provided with an exhaust through hole.

Furthermore, the terminal surface of a main section of thick bamboo is equipped with the block recess that is used for the base after the matching installation, back base through block recess with a main section of thick bamboo can dismantle fixedly.

Further, the rear base comprises a first end close to the bottom of the clamping groove and a second end opposite to the first end, and the first end is provided with a chamfer angle along the circumferential direction of the rear base.

Further, the chamfer is greater than 45 degrees.

Further, the second end of the rear base is provided with a protruding part convenient for grabbing.

Furthermore, the front fixing groove comprises at least two step planes, the number of the step planes is equal to that of the group elements of the lens front group, the step planes are used for correspondingly mounting the group elements of the lens front group one by one, and the positions, corresponding to the positions between the two adjacent step planes, of the side wall of the front base are provided with exhaust through holes.

After adopting the technical scheme, compared with the prior art, the utility model has the following advantages:

the optical lens detection jig can realize rapid imaging by simulating the optical imaging structure, and can be convenient for technicians to rapidly check whether the coaxiality and the parallelism of the lens structure influence the optical performance by ensuring the parallelism and the coaxiality between the groups, so as to facilitate subsequent structure adjustment and effectively save the development time.

Drawings

FIG. 1 is a schematic view of an optical lens inspection apparatus according to the present invention.

Description of reference numerals:

10-a main cylinder, 11-a clamping groove,

20-a front base, 21-a front fixing groove,

30-rear base, 31-rear fixing groove, 32-chamfer, 33-projection,

the aperture of the light source is 40-aperture,

50-the group of the front group,

60-the rear group of the cluster,

70-exhaust through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

The utility model discloses an optical lens detection jig, which comprises a main barrel 10, a front base 20, a rear base 30 and an aperture 40, wherein the front base 20 and the rear base 30 are respectively arranged at two ends of the main barrel 10, the front base 20 is provided with a front fixing groove 21 for matching and fixing a lens front group 50, the rear base 30 is provided with a rear fixing groove 31 for matching and fixing a lens rear group 60, the aperture 40 is fixed in the main barrel 10, the front fixing groove 21, the rear fixing groove 31, the aperture 40 and the main barrel 10 are coaxial, and the main barrel 10 is provided with an exhaust through hole 70.

The detection jig is made of stainless steel, so that the precision of the jig can be guaranteed, the coaxiality and the parallelism of the jig can be optimal, and the coaxiality and the parallelism of the front lens group 50 and the rear lens group 60 after the front lens group and the rear lens group are installed on the jig are further guaranteed. After the front group 50 and the rear group 60 of the lens are fixed to the jig, the whole jig is equivalent to an optical lens, an optical imaging structure is simulated by the mode, the optical imaging structure is matched with detection equipment for use, the optical imaging structure can be used for rapid imaging, the coaxiality and the parallelism of the front group 50 and the rear group 60 of the lens reach an ideal and optimal state after the front group and the rear group are fixed to the detection jig, and the optical performance of the lens is basically not influenced by the coaxiality and the parallelism of the front group and the rear group 60.

The front lens group 50 and the rear lens group 60 are installed in the lens structure and then imaged, and compared with the imaging of the lens structure in the jig, if the same imaging quality cannot be achieved, the coaxiality and the parallelism of the lens structure need to be modified and adjusted again (compared with the lens structure in the detection jig, the front lens group 50 and the rear lens group 60 have the same theoretical conditions except that the coaxiality and the parallelism cannot be achieved), so that technicians can conveniently and quickly check whether the coaxiality and the parallelism of the lens structure influence the optical performance, the subsequent adjustment structure is convenient, and the lens development time is effectively saved.

The vent holes 70 of the main tube 10 can effectively prevent the lenses or components in the main tube 10 from floating or skewing due to the change of air pressure in the main tube 10 (if there is no vent hole, the front group 50 and the rear group 60 of the lens are respectively installed and fixed on the front fixing groove 21 and the rear fixing groove 31, and a sealed space is formed in the main tube), thereby ensuring the coaxiality and the parallelism of the front group 60 and the rear group 60.

In this embodiment, the front group 50 includes two components, and the rear group 60 includes one component, and since the lens rear group 60 is more sensitive to the influence of the optical performance of the lens, only the detection rear group 60 needs to be replaced during detection. Specifically, the end face of the main cylinder 10 is provided with a clamping groove 11 for matching and installing the rear base 30, and the rear base 30 is detachably fixed with the main cylinder 10 through the clamping groove 11. The detachable design facilitates the replacement detection of the rear lens group 60.

More specifically, the rear base 30 includes a first end close to the bottom of the engaging groove 11 and a second end opposite to the first end, and the first end is provided with a chamfer 32 along the circumferential direction of the rear base 30, and the chamfer 32 is greater than 45 degrees. The chamfer 32 with a large angle is arranged, so that the coaxiality is ensured, and the rear base 30 is convenient to disassemble and assemble.

Wherein the second end of the rear base 30 is provided with a protrusion 33 for facilitating gripping. The protrusion 33 is easily grasped by a human hand, thereby facilitating quick assembly and disassembly of the rear base 30.

The front fixing groove 21 includes at least two step planes, the number of the step planes is equal to that of the lens front group 50, and the step planes are used for correspondingly mounting the components of the lens front group 50 one by one, and the positions of the side wall of the front base 20 corresponding to the positions between the two adjacent step planes are provided with air vent holes 70. In this embodiment, the number of the step planes is two (the number of the front group 50 is two), and in the processing process of the jig, the parallelism of the lens front and rear groups 60 after installation is ensured by ensuring the parallelism control of the step planes, the engaging grooves 11, the rear fixing grooves 31, and the like.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an optical lens detection tool which characterized in that: the lens group fixing device comprises a main barrel, a front base, a rear base and an aperture, wherein the front base and the rear base are respectively arranged at two ends of the main barrel, the front base is provided with a front fixing groove used for matching with a fixed lens front group, the rear base is provided with a rear fixing groove used for matching with a fixed lens rear group, the aperture is fixed in the main barrel, the front fixing groove, the rear fixing groove and the aperture are coaxial with the main barrel, and the main barrel is provided with an exhaust through hole.

2. The optical lens inspection tool of claim 1, wherein: the end face of the main cylinder is provided with a clamping groove used for matching and installing a rear base, and the rear base is detachably fixed with the main cylinder through the clamping groove.

3. The optical lens inspection tool of claim 2, wherein: the rear base comprises a first end close to the bottom of the clamping groove and a second end opposite to the first end, and the first end is provided with a chamfer angle along the circumferential direction of the rear base.

4. The optical lens inspection tool of claim 3, wherein: the chamfer is greater than 45 degrees.

5. The optical lens inspection tool of claim 3, wherein: the second end of back base is equipped with the protruding portion of being convenient for snatch.

6. The optical lens inspection tool of claim 1 or 2, wherein: the front fixing groove comprises at least two step planes, the step planes are equal to the group elements of the lens front group and used for correspondingly mounting the group elements of the lens front group one by one, and exhaust through holes are formed in the side wall of the front base corresponding to the positions between the two adjacent step planes.