CN214251474U - Detection equipment for optical performance of camera component - Google Patents

Abstract

The utility model discloses a detection device for optical performance of a camera component, which comprises a material platform device for placing the camera component, a laser emitting device arranged below the material platform device, and a detection device arranged above the material platform device; the laser module is used for emitting laser beams to irradiate the camera component so as to enable the camera component to output a beam pattern; the laser module is driven by the first driving mechanism and the detection module through the second driving mechanism to adjust the position so as to enable the center of the laser module to be concentric with the detection center of the detection module; the detection module is used for detecting a beam pattern output by the camera component so as to judge the optical performance of the camera component. The utility model discloses a laser module transmission laser beam shines camera subassembly to make camera subassembly output beam picture and projection to projection screen, the optical property of camera subassembly is judged through the figure that detects on the projection screen to the detection module group, and degree of automation is high, and detection efficiency is high.

Description

Detection equipment for optical performance of camera component

Technical Field

The utility model relates to a camera subassembly optical property detects technical field, especially relates to a camera subassembly optical property's check out test set.

Background

The DOE and the Diffuser are two camera components with similar functions, and the application occasions are different, the DOE is mainly used for a 3D structure Optical camera and a DTOF camera, the Diffuser is mainly used for an ITOF camera, and the DOE and the Diffuser are all components of a high-end camera module (3D). The DOE is a diffractive optical element, which is an element that spatially splits laser beams by using a diffraction phenomenon of light, and the surface of the DOE has a micro structure designed by simulation, so that split laser beams can be controlled, and various beam patterns can be output; diffuiser is an optical diffusion sheet that homogenizes the laser beam and improves the accuracy of ranging.

At present, detection equipment for DOE/Diffuser camera module components in the market is basically vacant, and if the DOE/Diffuser camera modules are assembled without optical performance detection, the yield of the assembled camera modules can be influenced, and the experience of customers is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a camera subassembly optical property's check out test set shines camera subassembly through laser module transmission laser beam to make camera subassembly output beam picture and projection to projection screen, the optical property of camera subassembly is judged through the figure that detects on the projection screen to the detection module, and degree of automation is high, and detection efficiency is high.

In order to realize the purpose, the following technical scheme is adopted:

a detection device for optical performance of a camera component comprises a material platform device for placing the camera component, a laser emitting device arranged below the material platform device, and a detection device arranged above the material platform device; the laser emitting device comprises a first driving mechanism and a laser module driven by the first driving mechanism to adjust the position; the laser module is used for emitting laser beams to irradiate the camera component so as to enable the camera component to output a beam pattern; the detection device comprises a second driving mechanism and a detection module which is driven by the second driving mechanism to adjust the position; the laser module is driven by the first driving mechanism and the detection module through the second driving mechanism to adjust the position so as to enable the center of the laser module to be concentric with the detection center of the detection module; the detection module is used for detecting a beam pattern output by the camera component so as to judge the optical performance of the camera component.

Preferably, the laser emitting device further comprises a temperature control platform arranged at the bottom of the laser module; the temperature control platform is used for providing the temperature required by the laser module so that the laser module emits a light path matched with the camera component.

Preferably, the laser emitting device further comprises a calibration camera arranged on one side of the first driving mechanism; a light source is arranged in front of a lens of the calibration camera, and the calibration camera and the light source are used for shooting a camera head component in the material platform device to realize alignment.

Preferably, the device also comprises a dotting and marking mechanism arranged on one side of the material platform device; the dotting and marking mechanism comprises a rotary dotting driving module, a dotting lifting module arranged at the top of the rotary dotting driving module, and a dotting connecting rod with one end connected to the top of the dotting lifting module; the other end of the dotting connecting rod extends to the upper side of the material platform device, and a dotting device is arranged at the other end and used for dotting and marking defective products.

Preferably, the device further comprises a manual alignment mechanism arranged on one side of the material platform device; the manual alignment mechanism comprises a rotary swing table, a first connecting rod, a second connecting rod and an alignment camera; two ends of the first connecting rod are respectively and rotatably connected with the top of the rotary swing table and one end of the second connecting rod; a light source is arranged in front of the lens of the alignment camera, and the alignment camera and the light source are arranged at the other end of the second connecting rod.

Preferably, the material platform device comprises a disc with a material hole in the middle and a third driving mechanism for driving the disc to adjust the position; the camera component is arranged at the lower part in the material tray, and the material tray is arranged in the material hole of the disc.

Preferably, the third driving mechanism comprises a disk rotation driving module for driving the disk to rotate, a first X-axis driving module for driving the disk to move linearly along the X-axis, and a first Y-axis driving module for driving the disk to move linearly along the Y-axis.

Preferably, the first driving mechanism and the second driving mechanism each include a second X-axis driving module, a second Y-axis driving module, a first Z-axis driving module, a Tx-axis driving module, a Ty-axis driving module, and a Tz-axis driving module; the second X-axis driving module, the second Y-axis driving module and the first Z-axis driving module are respectively used for driving the laser module or the detection module to do linear motion along the X-axis, the Y-axis and the Z-axis; the Tx axis driving module, the Ty axis driving module and the Tz axis driving module are respectively used for driving the laser module or the detection module to rotate around an X axis, a Y axis and a Z axis.

Preferably, the detection device further comprises a projection screen mechanism disposed below the detection module; the projection screen mechanism comprises a projection screen, lifting frames which are arranged at two ends of the projection screen and are in sliding connection with the projection screen, and a projection lifting module which is used for driving the projection screen to slide and lift on the lifting frames.

Preferably, the first Z-axis driving module of the second driving mechanism comprises a plurality of lifting guide rods, a first screw rod and a hand wheel in driving connection with the first screw rod; the lifting guide rods are respectively arranged at the tops of the two lifting frames, and the lifting guide rods at the tops of the two lifting frames are slidably sleeved with mounting plates; the detection module and a second X-axis driving module, a second Y-axis driving module, a Tx-axis driving module, a Ty-axis driving module and a Tz-axis driving module of the second driving mechanism are arranged at the bottom of the mounting plate; the middle part of mounting panel is connected with first lead screw drive, and hand round is used for driving first lead screw and drives the mounting panel and slide along the lift guide arm and go up and down.

Adopt above-mentioned scheme, the beneficial effects of the utility model are that:

the utility model discloses a laser module transmission laser beam shines camera subassembly to make camera subassembly output beam picture and projection to projection screen, the optical performance that the camera subassembly was judged through the figure that detects on the projection screen to the detection module. Meanwhile, the laser module is driven by the first driving mechanism and the detection module through the second driving mechanism to adjust the position, so that the center (laser emission point) of the laser module is concentric with the detection center of the detection module, and the detection accuracy is ensured. Furthermore, the utility model discloses a mark is made on unqualified camera head spare to the marker mechanism is got ready in the setting, makes things convenient for the manual work to choose out.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the present invention with the frame omitted;

fig. 3 is a perspective view of the laser emitting device of the present invention;

FIG. 4 is a perspective view of the dotting and marking mechanism of the present invention;

fig. 5 is a perspective view of the manual alignment mechanism of the present invention;

fig. 6 is a perspective view of the material platform device of the present invention;

fig. 7 is a perspective view of the detecting device of the present invention;

fig. 8 is a perspective view of a second driving mechanism and a detection module according to the present invention;

FIG. 9 is a perspective view of FIG. 8 with the first Z-axis drive module omitted;

fig. 10 is a schematic view of the structure of the utility model in use;

wherein the figures identify the description:

1-material platform device, 2-laser emission device,

3-detection device, 4-dotting marking mechanism,

5-a manual alignment mechanism, 6-a material tray,

7-a machine frame, 8-a material inlet and a material outlet,

11-a disc, 12-a third drive mechanism,

21-a first drive mechanism, 22-a laser module,

23-a temperature control platform, 24-a calibration camera,

31-a second driving mechanism, 32-a detection module,

33-projection screen means, 34-mounting plate,

41-a rotary dotting driving module, 42-a dotting lifting module,

43-dotting connecting rod, 44-dotting device,

51-a rotary swing table, 52-a first connecting rod,

53-second link, 54-alignment camera,

121-a disk rotation driving module, 122-a first X-axis driving module,

123-a first Y-axis drive module, 211/311-a second X-axis drive module,

212/312-the second Y-axis driving module, 213/313-the first Z-axis driving module,

214/314-Tx axis driving module, 215/315-Ty axis driving module,

216/316-Tz-axis drive module, 331-projection screen,

332-a lifting frame, 333-a projection lifting module,

3131-lifting guide rods, 3132-first lead screw,

3133-hand shaking wheel.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 10, the present invention provides a device for detecting optical performance of a camera component, which includes a material platform device 1 for placing the camera component, a laser emitting device 2 disposed below the material platform device 1, and a detecting device 3 disposed above the material platform device 1; the laser emitting device 2 comprises a first driving mechanism 21 and a laser module 22 which is driven by the first driving mechanism 21 to adjust the position; the laser module 22 is configured to emit a laser beam to irradiate the camera component, so that the camera component outputs a beam pattern; the detection device 3 comprises a second driving mechanism 31 and a detection module 32 which is driven by the second driving mechanism 31 to adjust the position; the laser module 22 is driven by the first driving mechanism 21 and the detection module 32 by the second driving mechanism 31 to adjust the position, so that the center (laser emission point) of the laser module 22 is concentric with the detection center of the detection module 32; the detection module 32 is configured to detect a beam pattern output by the camera component to determine an optical performance of the camera component.

In a specific embodiment, the material tray 6 is a wafer tray, and a plurality of DOE/diffuisers are placed on the wafer tray for loading and unloading. The camera part mainly includes DOE/diffuiser, but is not limited to DOE/diffuiser. The utility model discloses still include frame 7, the back of frame 7 is equipped with into discharge gate 8, and the wafer dish is followed and is gone up unloading in this discharge gate 8.

The detection device 3:

the detection device 3 further comprises a projection screen mechanism 33 arranged below the detection module 32; the projection screen mechanism 33 includes a projection screen 331, a lifting frame 332 disposed at two ends of the projection screen 331 and slidably connected to the projection screen 331, and a projection lifting module 333 for driving the projection screen 331 to slide on the lifting frame 332. The light beam pattern output from the camera unit is projected on the projection screen 331, and the detection module 32 detects the pattern on the projection screen 331.

The first Z-axis driving module 313 of the second driving mechanism 31 includes a plurality of lifting guide rods 3131, a first lead screw 3132, and a hand wheel 3133 drivingly connected to the first lead screw 3132; the lifting guide rods 3131 are respectively arranged on the tops of the two lifting frames 332, and the mounting plate 34 is slidably sleeved on the lifting guide rods 3131 on the tops of the two lifting frames 332; the second X-axis driving module 311, the second Y-axis driving module 312, the Tx-axis driving module 314, the Ty-axis driving module 315, and the Tz-axis driving module 316 of the detection module 32 and the second driving mechanism 31 are disposed at the bottom of the mounting plate 34; the middle part of the mounting plate 34 is in driving connection with the first lead screw 3132, and the hand wheel 3133 is used for driving the first lead screw 3132 to drive the mounting plate 34 to slide along the lifting guide rod 3131.

The detection module 32 comprises a detection camera, the detection camera adopts a camera with the model of MV-CH080-60GM, and the detection center of the detection module 32 is the view center of the detection camera; the projection lifting module 333 comprises a lifting driving motor, and the maximum support of the projection screen 331 is 800 × 600 mm.

Laser emitting apparatus 2:

the laser emitting device 2 further comprises a temperature control platform 23 arranged at the bottom of the laser module 22; the temperature control platform 23 is used for providing a temperature required by the laser module 22, so that the laser module 22 emits a light path adapted to the camera head component. The laser emitting device 2 further comprises a calibration camera 24 arranged on one side of the first driving mechanism 21; a light source is arranged in front of the lens of the calibration camera 24, and the calibration camera 24 and the light source are used for aligning the camera parts in the shooting material platform device 1.

The calibration camera 24 is fixed on one side of the first driving mechanism 21 and is used for calibrating the central position of the DOE/Diffuser, and the calibration camera 24 adopts a camera with the model number of MV-CA 0500-11U. The laser module 22 is arranged on the jig platform, the jig platform is electrified to light a lamp (laser beam) on the laser module 22, the laser beam emits a light path to irradiate the DOE/Diffuser of the wafer disc, and the DOE/Diffuser outputs various beam patterns; the laser module 22 is the emitting part of the camera module, and has a control connecting wire which is electrified and lightened, and is electrified with the control connecting wire through the outside to generate laser beams.

Because there are some differences in the laser beam that the laser module 22 produces under different temperatures, the temperature control platform 23 controls the temperature through built-in waterway and external controller, control the temperature of the tool platform through heating and cooling system (water circulation system), thus control the temperature that the laser module 22 needs, in order to reach the effect; the temperature controlled by the temperature control platform 23 is in a range of 10-60 ℃, and the communication is carried out through RS 232.

The laser beam is projected onto the projection screen 331 through a pattern diffracted by the DOE/diffuiser, and the top detection camera determines the optical performance of the DOE/diffuiser by detecting the pattern on the projection screen 331.

The first driving mechanism 21 and the second driving mechanism 31 each include a second X-axis driving module 211/311, a second Y-axis driving module 212/312, a first Z-axis driving module 213/313, a Tx-axis driving module 214/314, a Ty-axis driving module 215/315, and a Tz-axis driving module 216/316; the second X-axis driving module 211/311, the second Y-axis driving module 212/312, and the first Z-axis driving module 213/313 are respectively used for driving the laser module 22 or the detection module 32 to move linearly along the X-axis, the Y-axis, and the Z-axis; the Tx axis driving module 214/314, the Ty axis driving module 215/315, and the Tz axis driving module 216/316 are respectively used for driving the laser module 22 or the detection module 32 to rotate around the X axis, the Y axis, and the Z axis.

The first driving mechanism 21, the second X-axis driving module 211/311, the second Y-axis driving module 212/312, the Tx-axis driving module 214/314, the Ty-axis driving module 215/315, and the Tz-axis driving module 216/316 of the second driving mechanism 31 are all set to be manually adjusted, wherein the X-axis of the first driving mechanism 21 is manually adjusted +/-5mm, the Y-axis is manually adjusted +/-5mm, the Z-axis is automatically adjusted +/-10mm, the Tx-axis is manually adjusted +/-3 °, the Ty-axis is manually adjusted +/-3 °, and the Tz-axis is manually adjusted 0-360 °; manual adjustment +/-5mm for the X-axis, +/-5mm for the Y-axis, automatic +/-5mm for the Z-axis, +/-5mm for the Tx-axis, +/-5 deg. for the Ty-axis, +/-5 deg. for the Tz-axis, and 0-360 deg. for the Tz-axis, respectively.

The stroke of the first Z-axis drive module 213 of the first drive mechanism 21 is 25 mm. With reference to fig. 10, the height between the detection camera and the projection screen 331 is manually adjusted (by the hand wheel 3133) through the first Z-axis driving module 313 of the second driving mechanism 31, and the adjustment range is set to 200-500 mm; the height between the projection screen 331 and the wafer tray is automatically adjusted through the projection lifting module 333, and the adjusting range is set to be 80-350 mm; the height between the wafer disk and the laser module 22 is automatically adjusted by the first Z-axis drive module 213 of the first drive mechanism 21.

Dotting and marking mechanism 4:

the dotting and marking mechanism 4 comprises a rotary dotting driving module 41, a dotting lifting module 42 arranged at the top of the rotary dotting driving module 41 and a dotting connecting rod 43 with one end connected to the top of the dotting lifting module 42; the other end of the dotting connecting rod 43 extends to the upper part of the material platform device 1, and the dotting device 44 is arranged at the other end.

The swing angle of the rotary dotting drive module 41 is 90+/-10 degrees, and the rotary dotting drive module 41 comprises a rotary motor and a turntable connected with the rotary motor; the dotting lifting module 42 is arranged at the top of the turntable and comprises a lifting driving motor and a plurality of lifting rods; the angle can be adjusted +/-15 deg. using the marker 44 for marking. After the DOE/Diffuser on the whole wafer disc is detected, the rotary dotting driving module 41 drives the dotting device 44 to rotate above the wafer disc according to the data recording result, and marks are made on the unqualified DOE/Diffuser by driving the dotting lifting module 42 to lift.

Manual alignment mechanism 5:

the manual alignment mechanism 5 is arranged on one side of the material platform device 1 and comprises a rotary swing table 51, a first connecting rod 52, a second connecting rod 53 and an alignment camera 54; two ends of the first connecting rod 52 are respectively and rotatably connected with the top of the rotary swing table 51 and one end of the second connecting rod 53; a light source is arranged in front of the lens of the alignment camera 54, and the alignment camera 54 and the light source are arranged at the other end of the second connecting rod 53, so that the center position of the first test product in the tray 6 can be conveniently found manually.

Because of some variation in the size and position of the incoming material on the wafer disk, the first DOE/Diffuser needs to be positioned by the alignment camera 54 to detect the spread

Material platform device 1:

the material platform device 1 comprises a disc 11 with a material hole in the middle and a third driving mechanism 12 for driving the disc 11 to adjust the position; the camera component is arranged in the material tray 6, and the material tray 6 is arranged in the material hole of the disc 11. The third driving mechanism 12 includes a disk rotation driving module 121 for driving the disk 11 to rotate, a first X-axis driving module 122 for driving the disk 11 to move linearly along the X-axis, and a first Y-axis driving module 123 for driving the disk 11 to move linearly along the Y-axis.

A first X-axis driving module 122 with a stroke set to 260 mm; a first Y-axis driving module 123 with a stroke of 400 mm; a disc rotation driving module 121 with a stroke set to-20 to 20 °; the material hole arranged in the middle of the disc 11 is circumferentially provided with vacuum adsorption for adsorbing and fixing the wafer disc; the disc rotation driving module 121 includes a rotation driving motor and a conveyor belt sleeved around the outer circumference of the disc 11, and the rotation driving motor drives the conveyor belt to drive the disc 11 to rotate to adjust the angle direction; first X axle drive module 122, first Y axle drive module 123 all include slide rail, slider, motor, realize automatically regulated.

The detection principle of the detection device provided in the application is as follows:

before the work, the projection screen 331 is adjusted to be horizontal, then the top detection module 32 is adjusted to be parallel to the projection screen 331, and then the positions of the bottom laser module 22 and the top detection module 32 are adjusted to be concentric; after the adjustment, the top detection module 32 (at this time, the detection module 32 only has the first Z-axis driving module 313 of the second driving mechanism 31 being able to be adjusted by hand) and the bottom laser module 22 are kept still (at this time, the laser module 22 only has the first Z-axis driving module 213 of the first driving mechanism 21 being able to be adjusted automatically), the calibration camera 24 is used to find the center position of the DOE/diffuiser, and during the alignment process, the disc 11 is automatically adjusted X, Y and the rotation angle direction through the first X-axis driving module 122, the first Y-axis driving module 123, and the disc rotation driving module 121, so that the calibration camera 24 can position the center position of the DOE/diffuiser.

After the adjustment is completed, the wafer disc with the DOE/Diffuser is placed to the material platform device 1, the DOE/Diffuser can be detected by finding the position of the first DOE/Diffuser on the wafer disc through the manual alignment mechanism 5, and after the detection is completed, the unqualified DOE/Diffuser can be marked by the marking mechanism 4, so that manual picking is facilitated.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The equipment for detecting the optical performance of the camera component is characterized by comprising a material platform device for placing the camera component, a laser emitting device arranged below the material platform device and a detection device arranged above the material platform device; the laser emitting device comprises a first driving mechanism and a laser module driven by the first driving mechanism to adjust the position; the laser module is used for emitting laser beams to irradiate the camera component so as to enable the camera component to output a beam pattern; the detection device comprises a second driving mechanism and a detection module which is driven by the second driving mechanism to adjust the position; the laser module is driven by the first driving mechanism and the detection module through the second driving mechanism to adjust the position so as to enable the center of the laser module to be concentric with the detection center of the detection module; the detection module is used for detecting a beam pattern output by the camera component so as to judge the optical performance of the camera component.

2. The apparatus for detecting optical performance of a camera component of claim 1, wherein said laser emitting device further comprises a temperature control platform disposed at the bottom of the laser module; the temperature control platform is used for providing the temperature required by the laser module so that the laser module emits a light path matched with the camera component.

3. The apparatus for detecting optical performance of camera head component according to claim 2, wherein said laser emitting device further comprises a calibration camera disposed at one side of said first driving mechanism; a light source is arranged in front of a lens of the calibration camera, and the calibration camera and the light source are used for shooting a camera head component in the material platform device to realize alignment.

4. The apparatus for detecting optical properties of a camera head unit according to claim 1, further comprising a dotting and marking mechanism disposed on a side of the material platform device; the dotting and marking mechanism comprises a rotary dotting driving module, a dotting lifting module arranged at the top of the rotary dotting driving module, and a dotting connecting rod with one end connected to the top of the dotting lifting module; the other end of the dotting connecting rod extends to the upper side of the material platform device, and a dotting device is arranged at the other end and used for dotting and marking defective products.

5. The apparatus for detecting optical properties of a camera head unit according to claim 1, further comprising a manual alignment mechanism disposed on a side of the material platform means; the manual alignment mechanism comprises a rotary swing table, a first connecting rod, a second connecting rod and an alignment camera; two ends of the first connecting rod are respectively and rotatably connected with the top of the rotary swing table and one end of the second connecting rod; a light source is arranged in front of the lens of the alignment camera, and the alignment camera and the light source are arranged at the other end of the second connecting rod.

6. The apparatus for detecting optical performance of a camera component of claim 1, wherein the material platform device comprises a disc with a material hole in the middle, and a third driving mechanism for driving the disc to adjust the position; the camera component is arranged at the lower part in the material tray, and the material tray is arranged in the material hole of the disc.

7. The apparatus for detecting optical performance of a camera head component according to claim 6, wherein said third driving mechanism comprises a disk rotation driving module for driving the disk to rotate, a first X-axis driving module for driving the disk to move linearly along the X-axis, and a first Y-axis driving module for driving the disk to move linearly along the Y-axis.

8. The apparatus for detecting optical performance of a camera head component according to claim 1, wherein the first driving mechanism and the second driving mechanism each comprise a second X-axis driving module, a second Y-axis driving module, a first Z-axis driving module, a Tx-axis driving module, a Ty-axis driving module, and a Tz-axis driving module; the second X-axis driving module, the second Y-axis driving module and the first Z-axis driving module are respectively used for driving the laser module or the detection module to do linear motion along the X-axis, the Y-axis and the Z-axis; the Tx axis driving module, the Ty axis driving module and the Tz axis driving module are respectively used for driving the laser module or the detection module to rotate around an X axis, a Y axis and a Z axis.

9. The apparatus for detecting optical performance of a camera module according to claim 8, wherein the detecting device further comprises a projection screen mechanism disposed under the detecting module; the projection screen mechanism comprises a projection screen, lifting frames which are arranged at two ends of the projection screen and are in sliding connection with the projection screen, and a projection lifting module which is used for driving the projection screen to slide and lift on the lifting frames.

10. The apparatus for detecting optical performance of a camera module according to claim 9, wherein the first Z-axis driving module of the second driving mechanism includes a plurality of lifting guide rods, a first lead screw, and a hand wheel drivingly connected to the first lead screw; the lifting guide rods are respectively arranged at the tops of the two lifting frames, and the lifting guide rods at the tops of the two lifting frames are slidably sleeved with mounting plates; the detection module and a second X-axis driving module, a second Y-axis driving module, a Tx-axis driving module, a Ty-axis driving module and a Tz-axis driving module of the second driving mechanism are arranged at the bottom of the mounting plate; the middle part of mounting panel is connected with first lead screw drive, and hand round is used for driving first lead screw and drives the mounting panel and slide along the lift guide arm and go up and down.

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