CN212482409U

CN212482409U - Optical scanner

Info

Publication number: CN212482409U
Application number: CN202021028198.1U
Authority: CN
Inventors: 徐小冬
Original assignee: Ningbo Ming Sing Optical R & D Co ltd
Current assignee: Ningbo Ming Sing Optical R & D Co ltd
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2021-02-05
Anticipated expiration: 2030-06-06

Abstract

The utility model relates to an optical scanner, including support, formation of image subassembly, set up in the support top and supply the place the platform that the lens was placed, set up light-emitting component on place the platform and set up in light-emitting component towards the light-equalizing piece of place the platform one side, light-emitting component includes the light source, the light source includes LED lamp plate and the LED lamp pearl of array arrangement on the LED lamp plate. The utility model discloses have and make illumination more even, promoted CCD's the imaging accuracy's effect.

Description

Optical scanner

Technical Field

The utility model belongs to the technical field of a technique for measure profile or camber and specifically relates to an optical scanner is related to.

Background

The automatic lens edge grinding machine is composed of an optical scanner for scanning the outline of the lens and a digital control lens edge grinding system.

The utility model discloses a chinese utility model for CN205102791U is announced in authorization number has solved the technical problem that current lens profile scanner scanning efficiency is low and with high costs, the utility model discloses lens profile optical scanner, including bottom plate, sliding platform, establish linear array CCD on the bottom plate, gather linear array CCD data's control collector and drive sliding platform horizontal migration's actuating mechanism, be equipped with convex lens directly over linear array CCD, convex lens's top focus department is equipped with the lamp pearl, the last transparent glass board that is equipped with of sliding platform, the transparent glass board is established between linear array CCD and convex lens.

However, above-mentioned utility model in the in-service use, owing to set up the lamp pearl at the CCD top, the light of lamp pearl sees through convex lens and shines on place the platform after focusing, and the illumination intensity of monomer lamp pearl is more weak, so lead to illumination intensity less strong, cause linear array CCD's formation of image fuzzy easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an optical scanner has and makes illumination more even, has promoted CCD's the more clear effect of formation of image.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an optical scanner, includes support, formation of image subassembly, sets up in the support top and supplies the place the platform that the lens was placed, sets up light-emitting component on place the platform and sets up in light-emitting component towards the even light piece of place one side of place the platform, light-emitting component includes the light source, the light source includes LED lamp plate and array arrangement LED lamp pearl on the LED lamp plate.

By adopting the technical scheme, the LED lamp beads arranged on the LED lamp panel in an array manner are arranged, so that the illumination intensity of the light source is increased, and the imaging of the lens is clearer; after light emitted by the light source penetrates through the light-homogenizing piece, the light is subjected to diffuse reflection in the light-homogenizing piece, so that the light emitted from the light-homogenizing piece is more uniform, the light emitted from the light-homogenizing piece passes through the placing platform and the lens placed on the placing platform and then enters the imaging assembly, imaging scanning of the lens is realized, the outline of the imaged lens is clearer and more obvious, and the imaging accuracy of the lens in the imaging assembly is improved; the light sources are arranged into the LED lamp beads arranged on the LED lamp panel in an array mode, so that the light of the light sources is more uniform, and the uniformity degree of illumination of the light sources, which is irradiated on the placing platform after penetrating through the light equalizing piece, is further improved; illumination enters into the light equalizing part after being emitted from the light source and is scattered through the light equalizing part, so that the loss of the illumination generated by the light source is reduced, and the illumination effect of the light equalizing part is improved.

The utility model discloses further set up to: the light-emitting component further comprises a fixed seat, the light source is installed at the top of the fixed seat, and the fixed seat is connected with the support.

By adopting the technical scheme, the installation of the light source is facilitated.

The utility model discloses further set up to: the LED lamp is characterized in that a light-transmitting cavity is formed in the placing platform, LED lamp beads on the LED lamp panel are located under the light-transmitting cavity, and light-transmitting plates for light to pass through are arranged at the top of the placing platform.

Through adopting above-mentioned technical scheme, the illumination that the light source sent can shine on place the platform through the light-passing board, has reduced place the platform's materials, has reduced place the platform's manufacturing cost.

The utility model discloses further set up to: the top of the placing platform is provided with a light shielding part, the light transmitting cavity is upwards communicated with the light shielding part, and the light transmitting plate is arranged on the top of the light shielding part.

By adopting the technical scheme: the scattering and disappearing of the light source through the placing platform is reduced, the illumination intensity of the light source to the light-passing plate is improved to a certain extent, and the outline of the lens is clearer.

The utility model discloses further set up to: the light transmission plate is connected with the placing platform in a sealing mode.

Through adopting above-mentioned technical scheme, reduced the probability that the dust enters into the printing opacity cavity of place the platform bottom, reduced the probability that the dust shines to the inside light of place the platform to it can pass the light-passing board at place the platform top uniformly to have ensured illumination.

The utility model discloses further set up to: the bottom of the placing platform is provided with a sealing ring, and the sealing ring is tightly pressed with the light homogenizing piece.

Through adopting above-mentioned technical scheme, set up the sealing ring in place platform's bottom, further promoted place platform's leakproofness to further reduce the probability that the dust enters into the printing opacity cavity of place platform bottom, thereby ensured that the light after passing the uniform light spare can shine in place platform's top completely, ensured the even degree of light in the printing opacity cavity to a certain extent.

The utility model discloses further set up to: the imaging assembly comprises a CCD camera, the support is provided with an installation part for installing the imaging assembly, the side wall of the installation part is provided with a placing through hole for installing the CCD camera, and the CCD camera is installed in the placing through hole.

Through adopting above-mentioned technical scheme, the structure is simpler, and has made things convenient for the installation between formation of image subassembly and the support.

The utility model discloses further set up to: the imaging component comprises a CCD camera and a reflective part, the CCD camera is obliquely installed on the side wall of the installing head and forms an included angle alpha with the horizontal plane, the top of the installing head is obliquely provided with the reflective part, and the included angle between the CCD camera and the reflective part is the same as the included angle between a normal line and a plumb line on the reflective part.

Through adopting above-mentioned technical scheme, image on the place the platform can form images in entering into the CCD camera after reflecting through the reflector, because need focus between CCD camera and the place the platform, so interval between CCD camera and the place the platform is great, lead to CCD camera height higher easily, lead to the whole equipment volume of optical scanner great, thereby lead to the occupation space of optical scanner great, adopt reflecting the back realization to the formation of image in the CCD camera on the place the platform, interval between CCD camera and the place the platform has been reduced, the equipment volume of optical scanner has been reduced, thereby optical scanner occupation space has been reduced.

To sum up, the utility model discloses an at least one useful technological effect:

by arranging the LED lamp panel, the LED lamp beads arranged on the LED lamp panel in an array manner, the placing platform positioned right above the LED lamp beads and the light equalizing piece arranged between the placing platform and the LED lamp beads, the illumination intensity of the optical scanner on the placing platform is increased, the illumination is more uniform, and the imaging definition of the CCD is improved;

through setting up the slope and installing in the CCD camera of support lateral wall and slope and install the reflection of light piece on installing the head, reduced optical scanner's height, reduced optical scanner's volume to optical scanner occupation space has been reduced to a certain extent.

Drawings

Fig. 1 is a schematic view of the overall configuration of an optical scanner in embodiment 1.

Fig. 2 is a schematic view of an exploded structure of the optical scanner in example 1.

Fig. 3 is a schematic view of the overall structure of the stent in example 1.

Fig. 4 is a schematic view of the overall structure of the placement platform and the light emitting module in embodiment 1.

Fig. 5 is a schematic cross-sectional view of the placement platform and the light emitting device in embodiment 1.

Fig. 6 is an enlarged schematic view of a portion a in fig. 5.

FIG. 7 is a schematic view of a partial cross-sectional structure of example 1.

Fig. 8 is a side view of the optical scanner in embodiment 2.

In the figure, 1, a bracket; 11. a support plate; 12. a mounting seat; 13. a mounting head; 131. a mounting plane; 132. a light-transmitting through hole; 14. a mounting member; 141. a hold-down bolt; 2. an imaging assembly; 21. a CCD camera; 22. a light reflecting member; 23. a convex lens; 3. placing a platform; 31. a seal ring; 32. a light-transmissive cavity; 33. a light shielding portion; 34. a light-transmitting plate; 341. a seal ring; 4. a light emitting assembly; 41. a fixed seat; 411. installing a groove; 42. a light source; 421. an LED lamp panel; 422. LED lamp beads; 5. a light homogenizing member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the case of the example 1, the following examples are given,

referring to fig. 1 and 2, an optical scanner includes a support 1, an imaging assembly 2, a platform 3 disposed on top of the support 1 and used for placing a lens, a light emitting assembly 4 disposed below the platform 3, and a light equalizing member 5 disposed on one side of the light emitting assembly 4 facing the platform 3.

Referring to fig. 2 and 3, the bracket 1 includes a supporting plate 11, a mounting seat 12 disposed at the bottom of the supporting plate 11 for mounting the light emitting component 4 and the placement platform 3, and a mounting head 13 disposed at the top of the supporting plate 11 for mounting the imaging component 2.

Referring to fig. 4, the light emitting assembly 4 includes a fixing base 41 and a light source 42 disposed on the top of the fixing base 41. The top of the fixing base 41 is opened with a mounting groove 411 for mounting the light source 42. The light source 42 includes that LED lamp plate 421 and array distribute in the LED lamp pearl 422 at LED lamp plate 421 top, above-mentioned light source 42 except adopting LED lamp plate 421 and LED lamp pearl 422, still can be equivalent to replace and install in a plurality of luminous little bulbs etc. at the mounting panel top for a mounting panel and array and can produce the illumination subassembly of relatively more even illumination.

The light equalizing part 5 is arranged at the top of the fixing seat 41 and completely covers the mounting groove 411, and the light equalizing part 5 is made of a light guide material. In this embodiment, the light equalizing member 5 is made of acrylic plate, and the light equalizing member 5 made of other materials capable of guiding light, such as glass fiber, is within the scope of the claims of the present invention except the acrylic plate.

Referring to fig. 4 and 5, the placing platform 3 is arranged at the top of the light equalizing part 5, the bottom of the placing platform 3 is provided with a sealing ring 31 pressed by the light equalizing part 5, a light-transmitting cavity 32 is formed in the placing platform 3, and the LED lamp beads 422 are located under the light-transmitting cavity 32, so that the light-transmitting cavity 32 can contain light emitted by the light source 4. The top of the placing platform 3 is provided with a light shielding part 33, and the light-transmitting cavity 32 is communicated with the top of the light shielding part 33. In this embodiment, the whole placing platform 3 is made of a light-shielding material, such as ABS light-shielding plastic.

Referring to fig. 5 and 6, a transparent plate 34 is disposed on the top of the light shielding portion 33, and a sealing ring 341 is disposed on the outer side wall of the transparent plate 34, wherein the sealing ring 341 is pressed against the inner wall of the transparent cavity 32.

Referring to fig. 7, the imaging module 2 includes a CCD camera 21 mounted on the support plate 11, a reflector 22 mounted in the mounting head 13, and a convex lens 23. In this embodiment, the reflector 22 is a plane mirror, and one side of the plane mirror facing the placing platform 3 is colored to form a reflecting surface.

The top of the mounting head 13 is provided with a mounting plane 131 for mounting the reflector 22, the reflector 22 is connected to the top of the mounting plane 131 through a fastener, and the mounting plane 131 is provided with a light-transmitting through hole 132 for placing a scene on the platform 3 on the reflective surface. The convex lens 23 is mounted on the bottom of the mounting head 13.

CCD camera 21 slope sets up in backup pad 11, and becomes contained angle alpha with the horizontal plane, and the contained angle between CCD camera 21 and the reflector 22 is the same with the contained angle between the normal on the reflector 22 and the plumb line to make the image on the place the platform 3 can form an image on CCD camera 21 after the reflection of reflector 22.

In the case of the example 2, the following examples are given,

referring to fig. 8, the difference from embodiment 1 is that the imaging assembly 2 includes a CCD camera 21, the CCD camera 21 is disposed above the convex lens 23, a mounting member 14 for mounting the CCD camera 21 is disposed on the support plate 11, the CCD camera 21 is mounted in the mounting member 14 and perpendicular to the light-transmitting plate 34 at the top of the placing platform 3, a pressing bolt 141 is connected to a side wall of the mounting member 14 through a thread, and an end of the pressing bolt 141 is pressed against the CCD camera 21.

The use principle of the above embodiment is as follows: after light that light source 42 sent sees through even light 5, make light produce diffuse reflection in even light 5, thereby make the light that sees through from even light 5 more even, the light that sees through on even light 5 passes place the platform 3 and places and enter into imaging components 2 behind the lens on place the platform 3, realize the formation of image scanning to the lens, make the profile of the lens after the formation of image more clear obvious, the degree of accuracy of formation of image of lens in imaging components 2 has been promoted.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An optical scanner comprising a support (1) and an imaging assembly (2), characterized in that: still including setting up in support (1) top and supply place platform (3) that the lens was placed, setting up light-emitting component (4) on place platform (3) and setting up in light-emitting component (4) towards equal light (5) of place platform (3) one side, light-emitting component (4) include light source (42), light source (42) include LED lamp plate (421) and array arrangement LED lamp pearl (422) on LED lamp plate (421).

2. An optical scanner according to claim 1, wherein: the light-transmitting cavity (32) of the equal light piece (5) of intercommunication is seted up to place platform (3) inside, LED lamp pearl (422) on LED lamp plate (421) are located under light-transmitting cavity (32), the top of place platform (3) is provided with light-transmitting board (34) that supply light to pass.

3. An optical scanner according to claim 2, wherein: the light-shading part (33) is arranged at the top of the placing platform (3), the light-transmitting cavity (32) is communicated with the light-shading part (33) upwards, and the light-transmitting plate (34) is arranged at the top of the light-shading part (33).

4. An optical scanner according to claim 2, wherein: the light-transmitting plate (34) is connected with the placing platform (3) in a sealing mode.

5. An optical scanner according to claim 1, wherein: the bottom of the placing platform (3) is provided with a sealing ring (31), and the sealing ring (31) is tightly pressed with the light equalizing piece (5).

6. An optical scanner according to claim 1, wherein: the light-emitting assembly (4) further comprises a fixed seat (41), the light source (42) is installed at the top of the fixed seat (41), and the fixed seat (41) is connected with the support (1).

7. An optical scanner according to claim 1, wherein: imaging component (2) include CCD camera (21), support (1) has installed part (14) that supply imaging component (2) to install, the confession has been seted up to the lateral wall of installed part (14) the through-hole (141) are placed in the installation of CCD camera (21), CCD camera (21) are installed in placing through-hole (141).

8. An optical scanner according to claim 1, wherein: imaging component (2) include CCD camera (21) and reflection of light piece (22), support (1) has installation head (13) that supply imaging component (2) to install, CCD camera (21) slope install in the lateral wall of installation head (13), and with become contained angle alpha between the horizontal plane, the top slope of installation head (13) is provided with a reflection of light piece (22).