CN211741074U

CN211741074U - Transmittance detection device

Info

Publication number: CN211741074U
Application number: CN202020120430.8U
Authority: CN
Inventors: 蒯泽文; 朱亚蒙
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-23
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a transmissivity detection device, be in including light emission unit (1), light receiving element (2) and setting light emission unit (1) with loading unit (3) between light receiving element (2), loading unit (3) including supporting seat (31) and with supporting seat (31) swing joint's tool (32), be equipped with logical unthreaded hole (321) on tool (32) and be used for placing the containing structure (322) of the device under test, light emission unit (1) light receiving element (2) logical unthreaded hole (321) with the central coaxial setting of containing structure (322). The utility model discloses a transmissivity detection device suitability is good.

Description

Transmittance detection device

Technical Field

The utility model belongs to the technical field of optics, especially, relate to a transmissivity detection device.

Background

The optical transmittance is the ratio of radiant energy projected and transmitted through an object to the total radiant energy projected on the object in the process of the incident light flux leaving from the irradiated surface or the other surface of the medium, and is an important index of the energy transmission of an optical lens. Since the transmittance of the optical lens reflects the loss of the radiant flux and the quality of the image, the measurement of the transmittance of the optical lens is very important.

At present, all the lenses of the optical structure need to be coated to change the optical properties of the lenses, such as reflection and transmission. After the final coating of each lens is completed, the overall transmittance after the lens is assembled is more required to be detected. However, the existing optical transmittance detection instruments are poor in applicability, can only detect the transmittance of a planar optical device, cannot detect the transmittance of an aspheric optical device and a lens optical device, and are poor in detection accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transmissivity detection device that suitability is strong.

In order to achieve the above object, the utility model provides a transmittance detection device, be in including light emission unit, light receiving element and setting light emission unit with loading unit between the light receiving element, loading unit include the supporting seat and with supporting seat swing joint's tool, be equipped with on the tool and lead to the unthreaded hole and be used for placing the containing structure of the device under test, light emission unit light receiving element lead to the unthreaded hole with containing structure's the coaxial setting in center.

According to the utility model discloses an aspect, the containment structure on the tool sets up to recess or boss.

According to one aspect of the present invention, the jig comprises a first cover plate and a second cover plate detachably connected, the first cover plate is located between the light emitting unit and the second cover plate;

the first cover plate is a light-transmitting cover plate.

According to an aspect of the present invention, the light passing hole is provided on the first cover plate, and the receiving structure includes a through hole portion provided on the second cover plate and a groove portion provided on the first cover plate.

According to the utility model discloses an aspect follows the through-hole part is radial, be equipped with on the through-hole part and dodge the groove.

According to an aspect of the present invention, the light passing hole is provided on the first cover plate and the second cover plate, the receiving structure is provided to be located on the second cover plate toward the boss on the side of the light receiving unit.

According to an aspect of the utility model, the tool is the integrated into one piece structure.

According to an aspect of the present invention, the diameter D of the light passing hole is smaller than the through hole of the smallest ring-shaped optical element in the device under test.

According to an aspect of the utility model, the diameter D of logical unthreaded hole is greater than or equal to 0.5 mm.

According to an aspect of the utility model, the supporting seat includes the supporting part and the supporting carries the installation department on the shown supporting part, the installation department be equipped with loading unit sliding connection's slot.

According to an aspect of the present invention, the transmittance detection device further includes a bottom plate, and the light emitting unit, the light receiving unit, and the supporting base are all mounted on the bottom plate;

the light emitting unit is arranged on the bottom plate, the bottom plate is provided with a light receiving unit, the light receiving unit is arranged on the bottom plate, the bottom plate is provided with a sliding groove, the supporting seat is provided with a positioning column, one end of the positioning column is fixedly connected with the supporting seat, and the other end of the positioning column can slide in the sliding groove.

According to the utility model discloses a scheme, the utility model discloses a transmissivity detection device loads the unit through setting up between light emission unit and light receiving element to the tool that loads the unit is provided with logical unthreaded hole and is used for placing the containing structure of the device under test, with light emission unit, logical unthreaded hole center, containing structure center and the coaxial setting of light receiving element. Thereby make the utility model discloses a transmittance detection device detects the accuracy nature higher, and the setting of containment structure makes the utility model discloses a transmittance detection device not only can carry out the transmittance to planar optical device and detect, can also carry out the transmittance to aspheric surface optical device and camera lens class device and detect, and the suitability is good.

According to the utility model discloses a scheme is equipped with the spout on bottom plate length direction along on the bottom plate, sets up the reference column between supporting part and the bottom plate, the one end of reference column and the lower terminal surface fixed connection of supporting part, and the other end can slide along bottom plate length direction in the spout. So set up for the supporting seat is adjustable for the distance of light receiving unit, because the tool is installed on the supporting seat, just makes the tool adjustable for the distance of light receiving unit, thereby is favorable to guaranteeing the utility model discloses transmissivity detection device's suitability still can detect to the long burnt camera lens product that some length are longer, through the cooperation of reference column and spout, can avoid because the overlength of the device length under test is difficult to the problem that detects.

According to the utility model discloses a scheme, holding structure department can set up and dodge the groove, makes things convenient for getting of being measured device to put.

According to the utility model discloses a scheme, the utility model discloses the diameter D who leads to the unthreaded hole on the tool sets up to being less than the through-hole of the device under test, if set up a plurality of annular optical element in the device under test, then sets up the diameter D who leads to the unthreaded hole to being less than minimum annular optical element through-hole in the device under test. So set up and can effectively avoid being surveyed the interior components and parts of device and cause the sheltering from to light, and lead to the inaccurate problem of transmissivity result of final detection.

According to the utility model discloses a scheme, the utility model discloses the diameter D of logical unthreaded hole on the tool still should set up to not being less than 0.5mm, so can avoid because logical unthreaded hole sets up the undersize, leads to optics can not pass through completely and make final testing result produce the problem of deviation.

Drawings

Fig. 1 is a view schematically showing a configuration of a transmittance detection device according to an embodiment of the present invention;

fig. 2 schematically shows a structural view of a loading unit according to an embodiment of the invention;

fig. 3 schematically shows a structural view of a jig according to an embodiment of the present invention;

FIG. 4 schematically shows a cross-sectional view of FIG. 3;

FIG. 5 is a view schematically showing a split structure of the jig shown in FIG. 3;

fig. 6 is a view schematically showing the structure of a jig according to a second embodiment of the present invention.

The reference numerals in the drawings represent the following meanings:

1. a light emitting unit. 2. A light receiving unit. 3. And (4) loading the unit. 4. A base plate. 5. And a positioning column. 31. And (4) supporting the base. 32. A jig. 321. And a light through hole. 322. A containment structure. 32a, a first cover plate. 32b, a second cover plate. 3221. A through-hole portion. 3222. A recessed portion. 3221a, avoidance groove. 311. A support portion. 312. An installation part. 3121. And (4) a slot. 41. A chute.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.

As shown in fig. 1, according to an embodiment of the present invention, the transmittance detection device of the present invention includes a light emitting unit 1, a light receiving unit 2, and a loading unit 3. The loading unit 3 is located between the light emitting unit 1 and the light receiving unit 2, and is used for loading the device under test. The light emitting unit 1 is used for emitting light to the device under test, and the light receiving unit 2 receives the light transmitted through the device under test from the side opposite to the light emitting unit 1, and then calculates the transmittance of the device under test.

The utility model discloses a transmissivity detection device, loading unit 3 include supporting seat 31 and support on supporting seat 31, with supporting seat 21 sliding connection's tool 32. The fixture 32 is provided with a light-passing hole 321 for passing the light emitted by the light-emitting unit 1 and an accommodating structure 322 for loading the device under test. The light emitting unit 1, the center of the light passing hole 321, the center of the accommodating structure 322, and the light receiving unit 2 are coaxially disposed.

The utility model discloses a transmissivity detection device is through setting up loading unit 3 between light emission unit 1 and light receiving element 2 to loading unit 3's tool 32 is provided with logical unthreaded hole 321 and is used for placing the containing structure 322 of the device under test, with light emission unit 1, logical unthreaded hole 321 center, containing structure 322 center and the coaxial setting of light receiving element 2. Thereby make the utility model discloses a transmittance detection device detects the accuracy nature higher, and the setting of containment structure makes the utility model discloses a transmittance detection device not only can carry out the transmittance to planar optical device and detect, can also carry out the transmittance to aspheric surface optical device and camera lens class device and detect, and the suitability is good.

Referring to fig. 1 and 2, according to an embodiment of the present invention, the transmittance detection device further includes a bottom plate 4, and the light emitting unit 1, the loading unit 3, and the light emitting unit 2 are all mounted on the bottom plate 4. According to an embodiment of the present invention, the supporting seat 31 of the loading unit 3 includes a supporting portion 311 and a mounting portion 312 supported on the supporting portion 311. In this embodiment, the supporting portion 311 is configured as a flat plate structure, the mounting portion 312 is configured as a vertical flat plate structure, and the mounting portion 312 is disposed on the supporting plate 311, so that the supporting seat 31 is L-shaped as a whole. The supporting portion 311 and the mounting portion 312 may be provided as two separate parts for fixed supporting connection, and may be provided as an integrally formed structure. The utility model discloses a tool is installed on installation department 312.

According to an embodiment of the present invention, the bottom plate 4 is provided with a sliding groove 41 along the length direction of the bottom plate. In the present embodiment, the two slides 41 are provided in the waist groove so as to face each other. A positioning column 5 is arranged between the supporting part 311 and the bottom plate 4, one end of the positioning column 5 is fixedly connected with the lower end face of the supporting part 311, and the other end can slide in the sliding groove 41 along the length direction of the bottom plate 4. So set up for supporting seat 31 is adjustable for light receiving unit 2's distance, because tool 32 is installed on supporting seat 31, just makes tool 32 adjustable for light receiving unit 2's distance, thereby is favorable to guaranteeing the utility model discloses transmissivity detection device's suitability still can detect to the long burnt camera lens product of some length, through reference column 5 and spout 41's cooperation, can avoid because the problem that the overlength of being measured device length is difficult to detect.

Referring to fig. 1 and 2, according to an embodiment of the present invention, the mounting portion 312 is provided with a slot 3121 for engaging with the jig 32. In the present embodiment, the slot 3121 is configured to have a groove bottom along the light incidence direction, and the groove bottom is provided with a through hole for the light emitted by the light emitting unit 1 to pass through. According to the utility model discloses a think about, also can not set up the structure of sheltering from along the light incidence direction at slot 3121.

According to the present invention, the holding structure 322 of the jig 32 for loading the device under test can be set to a groove shape. Referring to fig. 3-5, according to an embodiment of the present invention, the jig 32 includes a first cover plate 32a and a second cover plate 32b, which can be detachably connected, and the first cover plate 32a and the second cover plate 32b are connected to form the jig 32. According to the utility model discloses an embodiment is equipped with the locating pin on the first apron 32a, set up on the second apron 32b with locating pin assorted mounting hole, first apron 32a and second apron 32b are connected with the mounting hole through the locating pin.

As shown in fig. 3 to 5 in conjunction, in the present embodiment, the first cover plate 32a is positioned between the light emitting unit 1 and the second cover plate 32b, and the light emitted from the light emitting unit 1 is first irradiated onto the first cover plate 32 a. In the utility model discloses an, first apron 32a sets up to the printing opacity apron to light can pass through first apron 32a smoothly, avoids because first apron 32a shelters from to light, leads to the deviation that final transmittance calculated, is favorable to promoting the detection precision.

In this embodiment, the light passing hole 321 of the present invention is disposed on the first cover plate 321, and the receiving structure 322 includes a through hole portion 3221 disposed on the second cover plate 322 and a groove portion 3222 disposed on the first cover plate 321. The centers of the light passing hole 321, the through hole portion 3221, and the groove portion 3222 are coaxially disposed. The device under test is loaded in the through hole portion 3221 and the groove portion 3222.

According to the second embodiment of the present invention, the jig 32 of the present invention can be further configured as an integrated structure, and the accommodating structure 322 can be configured to be the same as the jig 32 including the first cover plate 32a and the second cover plate 32 b.

According to an embodiment of the present invention, the fixture 32 is set to be a split structure including the first cover plate 32a and the second cover plate 32b or to be an integrated structure, and the accommodating structure 322 can be set to the avoiding groove 3221 a. The avoidance groove 3221a is arranged to facilitate the taking and placing of the device to be tested.

As shown in fig. 6, according to other embodiments of the present invention, no matter the jig 32 is configured as a split structure or an integrated structure, the receiving structure 322 can also be configured as a boss. As shown in fig. 6, in the present embodiment, the receiving structure 322 is provided in the form of a boss protruding from the surface of the jig 3.

According to the utility model relates to an embodiment, the utility model discloses the diameter D that leads to unthreaded hole 321 on tool 32 sets up to being less than the through-hole of the device under test, if set up a plurality of annular optical element in the device under test, then sets up the diameter D that leads to unthreaded hole 321 to being less than minimum annular optical element through-hole in the device under test. So set up and can effectively avoid being surveyed the interior components and parts of device and cause the sheltering from to light, and lead to the inaccurate problem of transmissivity result of final detection.

According to the utility model discloses an embodiment, the utility model discloses the diameter D of logical unthreaded hole 321 on tool 32 should still set up to be not less than 0.5mm, so can avoid because logical unthreaded hole 321 sets up the undersize, leads to optics can not pass through completely and make final testing result produce the problem of deviation.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a transmissivity detection device, includes light emission unit (1), light receiving unit (2) and sets up light emission unit (1) with loading unit (3) between light receiving unit (2), its characterized in that, loading unit (3) including supporting seat (31) and with supporting seat (31) swing joint's tool (32), be equipped with logical unthreaded hole (321) on tool (32) and be used for placing by the structure (322) that holds of device under test, light emission unit (1) light receiving unit (2) logical unthreaded hole (321) with the central coaxial setting of holding structure (322).

2. The transmittance detection apparatus according to claim 1, wherein the receiving structure (322) on the fixture (32) is configured as a groove or a boss.

3. The transmittance detection apparatus according to claim 2, wherein the jig (32) comprises a first cover plate (32a) and a second cover plate (32b) which are detachably connected, the first cover plate (32a) being located between the light emitting unit (1) and the second cover plate (32 b);

the first cover plate (32a) is a light-transmitting cover plate.

4. The transmittance detection device according to claim 3, wherein the light passing hole (321) is provided on the first cover plate (32a), and the receiving structure (322) comprises a through hole portion (3221) provided on the second cover plate (32b) and a groove portion (3222) provided on the first cover plate (32 a).

5. The transmittance detection device according to claim 4, wherein an avoiding groove (3221a) is provided on the through hole portion (3221) in a radial direction of the through hole portion (3221).

6. The transmittance detection apparatus according to claim 3, wherein the light passing holes (321) are provided on the first cover plate (32a) and the second cover plate (32b), and the receiving structure (322) is provided as a boss on the side of the second cover plate (32b) facing the light receiving unit (2).

7. The transmittance detection apparatus according to claim 2, wherein the jig (32) is of an integrally molded structure.

8. The transmittance detection apparatus according to any one of claims 1-7, wherein the diameter D of the light through hole (321) is smaller than the through hole of the smallest ring-shaped optical element in the device under test.

9. The transmittance detection apparatus according to claim 8, wherein the diameter D of the light-passing hole (321) is not less than 0.5 mm.

10. The transmittance detection apparatus according to claim 1, wherein the support base (31) comprises a support portion (311) and a mounting portion (312) for supporting the support portion (311), and the mounting portion (312) is provided with a slot (3121) slidably connected to the loading unit (3).

11. The transmittance detection apparatus according to claim 1, further comprising a bottom plate (4), wherein the light emitting unit (1), the light receiving unit (2) and the support base (31) are mounted on the bottom plate (4);

follow light emission unit (1) towards the direction of light receiving unit (2), be equipped with spout (41) on bottom plate (4), supporting seat (31) with be equipped with reference column (5) between spout (41), reference column (5) one end with supporting seat (31) fixed connection, the other end can slide in spout (41).