TWI650541B - Image testing device - Google Patents

Abstract

The invention provides an image testing device, comprising: a substrate; a testing mechanism disposed on the substrate, the testing mechanism defines a positioning hole for receiving a lens of a camera module; and a rotating mechanism directly above the lens The rotating mechanism includes a turntable and a support frame fixed on the turntable, the turntable further has a second through hole, a second receiving groove, a third receiving groove, a third through hole and a fourth receiving groove, the second The through hole is located directly below the second test sheet disposed on the support frame; a driver for driving the rotation of the rotating mechanism; and a controller for controlling the rotation of the drive.

Description

Image test device

The present invention relates to a test device, and more particularly to an image test device for a camera module.

The camera module needs to be artificially tested for vision, medium shot, close-range test, whiteboard test, blackboard test, etc. At present, the vision test, the mid-range test, the close-range test, the whiteboard test and the blackboard test are respectively carried out via the far-field test station, the whiteboard test station and the close-up test station. Due to the large number of test stations, the product needs to be loaded and unloaded multiple times, the product Longer shipping processes result in inefficient testing. In addition, with the increasing labor costs, the production costs of products are also increasing.

In view of this, it is necessary to provide an efficient and low-cost image testing device.

An image testing device includes a substrate; a testing mechanism disposed on the substrate, the testing mechanism defines a positioning hole for receiving a lens of a camera module; and a rotating mechanism directly above the lens, the rotating mechanism The utility model comprises a turntable and a support frame fixed on the turntable, the turntable is provided with a second through hole, a second receiving groove, a third receiving groove and a third pass, wherein the central axis is located on a circular arc centered on the geometric center thereof a hole and a fourth receiving hole directly under the second test sheet disposed on the support frame, the second receiving groove accommodating a blackboard, the third receiving groove accommodating a whiteboard, the fourth receiving groove Accommodating a lens, the distance from the geometric center to the optical axis of the lens is equal to the radius of the circular arc; a driver for driving the rotating mechanism to rotate; a controller for controlling the The driving mechanism rotates the rotating mechanism to rotate the second through hole, the second receiving groove, the third receiving groove, the third through hole and the fourth receiving groove to reach above the lens.

The image testing device provided by the invention controls the driver to drive the turntable to rotate the telephoto test, the mid-range test, the close-up test, the whiteboard test and the blackboard test to a test station, thereby avoiding multiple loading and unloading during the test. It reduces the number of workers in the product transportation process and testing process, provides product testing efficiency and reduces product cost.

100‧‧‧Image test equipment

10‧‧‧shell

11‧‧‧Support board

111‧‧‧First through hole

20‧‧‧Substrate

21‧‧‧ first surface

22‧‧‧ second surface

23‧‧‧First holding tank

24‧‧‧First shaft hole

25‧‧‧Support rod

26‧‧‧ Fixing frame

30‧‧‧Test institutions

31‧‧‧Positioning holes

40‧‧‧Rotating mechanism

41‧‧‧ Turntable

41a‧‧‧ third surface

41b‧‧‧Fourth surface

41c‧‧‧Second shaft hole

42‧‧‧ openings

43‧‧‧Second through hole

44‧‧‧Second holding tank

44a‧‧‧Blackboard

45‧‧‧ third holding slot

45a‧‧‧Whiteboard

46‧‧‧fourth receiving slot

46a‧‧ lens

461‧‧‧Extensions

47‧‧‧ third through hole

48‧‧‧Support frame

481‧‧‧ Third carrier board

4811‧‧‧ fifth receiving slot

49‧‧‧Second test drawing

50‧‧‧ drive

51‧‧‧Connected shaft

52‧‧‧ Controller

60‧‧‧First carrier board

61‧‧‧ sixth receiving slot

70‧‧‧First test drawing

80‧‧‧Second carrier board

90‧‧‧Light source

200‧‧‧ camera module

201‧‧‧ lens

1 is a perspective view of an image testing apparatus according to a preferred embodiment of the present invention.

2 is an exploded perspective view of the image testing device of FIG. 1.

3 is another perspective view of the image testing device of FIG. 1.

4 is a perspective view of a camera module to be tested.

FIG. 5 is a schematic view showing a state of use of the image testing apparatus of FIG. 1. FIG.

Referring to FIG. 1 to FIG. 4 together, the image testing apparatus 100 of the preferred embodiment of the present invention includes a housing 10, a substrate 20, a testing mechanism 30, a rotating mechanism 40, a driver 50, and a first carrier board. 60. A first test drawing 70, a second carrier plate 80 and a light source 90.

The housing 10 is substantially rectangular and has a hollow structure. A support plate 11 is fixed in the housing 10, and the support plate 11 defines a first through hole 111.

The substrate 20 is substantially rectangular and includes a first surface 21 and a second surface 22 that is parallel to the first surface 21. The first surface 21 defines a first receiving groove 23 recessed toward the second surface 22. The substrate 20 is adjacent to the first receiving groove 23 and extends through the first surface 21 and the second surface 22 . The first shaft hole 24. A support rod 25 is fixed to each of the four corners of the first surface 21. The second surface 22 is fixed with a fixing frame 26, and the position of the fixing frame 26 corresponds to the position of the first shaft hole 24.

The test mechanism 30 is used to test a camera module 200. The positioning mechanism 31 is configured to receive a lens 201 of the camera module 200. The central axis of the positioning hole 31 and the central axis of the first shaft hole 24 are parallel to each other.

The rotating mechanism 40 includes a turntable 41 and a support frame 48. The turntable 41 includes a third surface 41a parallel to the first surface 21 and a fourth surface 41b parallel to the third surface 41a. The geometric center of the turntable 41 defines a second shaft hole 41c extending through the third surface 41a and the fourth surface 41b. The shape and position of the second shaft hole 41c are respectively different from the shape and position of the first shaft hole 24. correspond. The opening of the turntable 41 defines an opening 42 extending through the third surface 41a and the fourth surface 41b. The opening 42 simultaneously penetrates the periphery of the turntable 41.

The turntable 41 further defines a second through hole 43 , a second receiving groove 44 , a third receiving groove 45 , a fourth receiving groove 46 and a third through hole 47 extending through the third surface 41 a and the fourth surface 41 b . The central axis of the second through hole 43, the central axis of the second receiving groove 44, the central axis of the third receiving groove 45, the central axis of the fourth receiving groove 46, and the central axis of the third through hole 47 are located at one The arc of the center of the turntable 41 is centered on the arc. The second receiving groove 44 houses a blackboard 44a. The third receiving groove 45 accommodates a whiteboard 45a. The fourth receiving groove 46 houses a lens 46a and extends an extending body 461 perpendicularly away from the fourth surface 41b. The distance from the geometric center of the turntable 41 to the central axis of the positioning hole 31 is equal to the radius of the circular arc. In the present embodiment, the blackboard 44a is a black acrylic plate, and the white plate 45a is a white acrylic plate.

The support frame 48 is fixed on the turntable 41 and includes a third carrying plate 481. The third receiving plate 481 defines a fifth receiving groove 4811. The fifth receiving groove 4811 is located directly above the second through hole 43. And used to accommodate a second test drawing 49.

The driver 50 has a connecting shaft 51 through which the driving mechanism 50 drives the rotating mechanism 40 to rotate. The shape and size of the connecting shaft 51 correspond to the shape and size of the first shaft hole 24 and the second shaft hole 41c, respectively. The first carrier 60 is disposed in the housing 10 by four support rods 25 and is located directly above the substrate 20. The first carrier plate 60 defines a sixth receiving slot 61 for receiving the first test drawing 70. The second carrier 80 is disposed in the housing 10 through the four support bars 25 and directly above the first carrier 60. The light source 90 is fixed on a surface of the second carrier 80 opposite to the first carrier 60.

When the assembly is assembled, the driver 50 is fixed on the fixing frame 26, and one end of the connecting shaft 51 is disposed in the second shaft hole 41c of the turntable 41 through the first shaft hole 24, so that the turntable 41 is connected thereto. The shafts 51 are connected. The other end of the driver 50 opposite to the end where the connecting shaft 51 is located passes through the first through hole 111. The test mechanism 30 is disposed in the first receiving groove 23 of the substrate 20.

Referring to FIG. 5, when the image testing apparatus 100 performs the test, first, the camera module 200 is disposed in the testing mechanism 30, and the lens 201 is received in the positioning hole 31 to open the light source 90. Secondly, the controller The controller 52 controls a rotation of the driver 50 according to the program, and the rotation mechanism 40 is rotated by the connecting shaft 51 to make the second through hole 43, the blackboard 44a, the whiteboard 45a, The lens 46a, the third through hole 47, and the opening 42 alternately reach the lens 201 in a predetermined order and time interval of the program.

When the second through hole 43 reaches above the lens 201, the camera module 200 performs a close-range test on the second test drawing 49 to test the close-up image sharpness of the camera module 200; when the blackboard 44a Upon reaching the lens 201, the camera module 200 performs a blackboard test on the image of the blackboard 44a. The camera module 200 captures a bright spot in a dull environment; when the whiteboard 45a reaches the lens 201, the camera The module 200 performs a whiteboard test on the image of the whiteboard 45a, and tests whether there is any dirt, vignetting, etc. in the camera module 200. When the lens 46a reaches the lens 201, the camera module 200 is the first The test pattern 70 is taken for a distant view test to test the perspective image sharpness of the camera module 200; when the third through hole 47 reaches above the lens 201, the camera module 200 takes the first test drawing 70 For example, a mid-range test is performed to test the mid-image image clarity of the camera module 200. When the opening 42 is turned over the lens 201, the camera module 200 can be loaded or unloaded, that is, the camera module 200 is disposed in the testing mechanism 30 or the camera module 200 is removed from the testing mechanism. 30 removed.

The image testing device provided by the invention controls the driver to drive the turntable to rotate the telephoto test, the mid-range test, the close-up test, the whiteboard test and the blackboard test to a test station, thereby avoiding multiple loading and unloading during the test. It reduces the number of workers in the product transportation process and testing process, provides product testing efficiency and reduces product cost.

It is to be understood that the above-described embodiments are merely illustrative of the invention and are not intended to limit the invention. In addition, variations made in the corresponding technical field in accordance with the inventive concept by those skilled in the art should fall within the protection scope of the present invention.

Claims (7)

An image testing device comprising a testing mechanism for accommodating a camera module to be tested, the improvement comprising: the image testing device further comprising a rotating mechanism directly above the lens of the camera module, the rotating mechanism comprising a turntable And a second test drawing, the turntable is provided with a second through hole, a second receiving groove, a third receiving groove, a third through hole and a fourth receiving groove, wherein the central axis is located on a circular arc centered on the geometric center thereof. The second through hole is located directly below the second test drawing, the second receiving groove accommodating a blackboard, the third receiving groove accommodating a whiteboard, the fourth receiving groove accommodating a lens, the geometric center to the light of the lens The distance of the shaft is equal to the radius of the arc; a driver for driving the rotating mechanism; and a controller for controlling the driving to rotate the rotating mechanism to make the second through hole, the blackboard, The whiteboard, the third through hole and the lens alternately reach the lens. The image testing device further comprises a substrate, the substrate comprising a first table And a second surface parallel to the first surface, the first surface opening a first receiving groove toward the second surface, the testing mechanism is disposed in the first receiving groove of the substrate; the second surface is fixed a holder fixed to the holder, the dial including a third surface parallel to the first surface and a fourth surface parallel to the third surface, the edge of the turntable opening through the third surface And an opening of the fourth surface, the camera module can be loaded or unloaded when the opening is turned over the lens. The image testing device of claim 1, wherein the testing mechanism is disposed in the first receiving slot and defines a positioning hole for receiving the lens. The image testing device of claim 1, wherein the second through hole, the second receiving groove, the third receiving groove, the fourth receiving groove and the third through hole penetrate the third surface and the The fourth surface. The image testing device of claim 3, wherein the rotating mechanism further comprises a support frame fixed to the turntable, and includes a third support plate, the support plate defines a fifth receiving slot, The fifth receiving groove is located directly above the second through hole, and the second test sheet is disposed in the fifth receiving groove. The image testing device of claim 4, wherein the driver has a connecting shaft that is coupled to the connecting shaft. The image testing device of claim 5, wherein the controller stores a predetermined program, and the controller controls the driver to rotate the rotating mechanism according to the program, so that the second through hole, the blackboard, the whiteboard The lens, the third through hole and the opening alternately arrive above the lens in a predetermined order and time interval of the program. The image testing device of claim 6, wherein the image testing device further comprises a housing, a first carrier board, a first test sheet, a second carrier board, and a light source, the substrate, the first The carrier board and the second carrier board are disposed in the housing, the first test sheet is disposed on the first carrier board, the light source is disposed on the second carrier board, and the first carrier board is located on the substrate and the second board Between the carrying boards.