CN201130235Y

CN201130235Y - Chip detecting device

Info

Publication number: CN201130235Y
Application number: CNU2007203104633U
Authority: CN
Inventors: 马建荣; 武俊杰; 郭竑源; 王卫东; 马健; 魏富龙; 朱姗姗; 豆粉娜
Original assignee: HENAN NANFANG HUIHUANG IMAGE INFORMATION TECHNIQUE CO Ltd
Current assignee: Henan Costar Group Co Ltd
Priority date: 2007-12-11
Filing date: 2007-12-11
Publication date: 2008-10-08
Anticipated expiration: 2017-12-11

Abstract

The utility model relates to a detection device for an optical engine, in particular to a detection device for chip, which comprises a bench, a display screen, an optical engine, a six-axis adjusting meter, a fixture, a signal generator or computer and a reflector; wherein, the bench is arranged according to three layers; the display screen is arranged at the top layer of the bench; the optical engine and the six-axis adjusting meter are arranged at the middle layer of the bench; the signal generator or the computer is arranged at the lower layer of the bench; the fixture is fixed at the front end of the six-axis adjusting meter and is used for clamping the chip to be detected; one optical path is removed from the optical engine which is arranged at corresponding position of the fixture; the optical engine and the fixture are arranged at the back surface of the display screen to form the mode of rear projection; the signal generator or the computer is connected with drive circuit of the optical engine through data line to output image signal for the optical engine. The result of using the detection device for chip can be equal to the result of directly using detected chip on the optical engine. The detection device for chip has the advantages of simple structure, easy operation, high detection efficiency and low cost.

Description

Chip-detecting apparatus

Technical field

The utility model relates to the pick-up unit of light engine, relates in particular to a kind of chip-detecting apparatus.

Background technology

Along with the development of optical projection display technique, the digital projector of the big picture of high resolving power has become provides an indispensable ring on the vision imaging, and ray machine is commonly referred to light engine as the core component of projection arrangement.And chip is as a critical elements forming ray machine, and its quality directly affects the performance of ray machine.In order to guarantee the quality of ray machine, chip must detect after going into factory, and the picture quality that projection goes out is carried out complete detection.At present, conventional detection method is to adopt general integrated circuit tester device to carry out, but testing apparatus costs an arm and a leg, and the test duration is long, the testing cost height.

Summary of the invention

The utility model purpose provides a kind of chip-detecting apparatus with advantage such as simple in structure, easy and simple to handle, that detection efficiency is high, cost is low.

For achieving the above object, the technical scheme taked of the utility model is:

A kind of chip-detecting apparatus, comprise stand, display screen, light engine, six axial adjustment instrument, anchor clamps, signal generator or computing machine, catoptron, stand is by three layers of distribution, described display screen is installed in the upper strata of stand, light engine, six axial adjustment instrument are installed in the middle level of stand, signal generator or computing machine are placed on the lower floor of stand, and catoptron is positioned at the light engine top and tilts to be installed on the stand, and anchor clamps are fixed on six axial adjustment instrument front ends and are used for the clamping chip under test; Described light engine is the light engine that has removed one tunnel light path chip, and described light engine, clamping have both positions correspondences of anchor clamps of chip under test and be positioned at display screen back side formation back projection mode; Described signal generator or computing machine are connected by data line with the driving circuit of light engine, are the light engine output image signal; Be provided with the shading baffle plate on the described stand around the light engine.

Described chip-detecting apparatus also is provided with pneumatic circuit; Described anchor clamps are by seat board, two side plates, two anchor clamps frame and moving grip blocks that sliding thick stick constitutes, quiet grip block is formed, two side plates of anchor clamps frame are connected with seat board is vertical, two sliding thick sticks are connected between two side plates, moving grip block, quiet grip block is enclosed within on two sliding thick sticks, quiet grip block is fixedlyed connected with side plate, moving grip block can slide on two sliding thick sticks, moving grip block, quiet grip block is provided with the alignment pin that cooperates with dowel hole on the chip under test, and moving grip block is controlled to move on two sliding thick sticks by described pneumatic circuit and will be positioned at moving grip block, chip under test between the quiet grip block clamps or unclamps.

Also be connected with the air gun that is used to clear up the chip under test surface dirt on the described pneumatic circuit.

Using the method that this device carries out chip detection is:

Connect the data line between signal generator or computing machine and the light engine driving circuit, open light engine, signal generator or computing machine.The seat board of anchor clamps is connected with bolt with six axial adjustment instrument front ends, chip under test is put between the moving grip block of anchor clamps, the quiet grip block, alignment pin on the dynamic and static grip block is inserted in the dowel hole on the chip under test, open pneumatic switch, the moving grip block of control slides on sliding thick stick and shifts to quiet grip block, and chip under test is fixedly clamped.Manually control six axial adjustment instrument move near the light engine assigned position along the Y direction slide rail, make chip under test just arrive the test trough place of light engine.Open light engine driving circuit switch, adjust the check pattern on signal generator or the startup computing machine, focusing is arrived in image switching, observe focusedimage, according to the focusing situation, manually trace is adjusted six axial adjustment instrument all directions, make chip under test reach focusing position the most clearly, again required pattern is arrived in image switching, begin to detect, the light that light engine produces projects on the catoptron by its camera lens, and mirror reflects light is to display screen, display screen becomes image with the light video picture that mirror reflects goes out, and draws the detection conclusion by observing display screen display image effect.After detection is finished, six axial adjustment instrument are moved out along the Y direction slide rail, close the driving circuit switch, pull out data line, chip under test is taken off, change next chip detection.Six axial adjustment instrument, signal generator or computing machine all adopt the known technology product, and pneumatic circuit adopts conventional pneumatic circuit.

Carry out chip detection according to the said chip pick-up unit, be equal to directly detected chip to be installed on the light engine and use, by observing the picture quality of projection, can be directly the quality of chip be detected.This pick-up unit not only can reduce the detection cost, especially can reduce the complicacy of testing process, and can increase the accuracy and the detection speed of detection.Have advantages such as simple in structure, easy and simple to handle, that detection efficiency is high, cost is low.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the partial enlarged view of six axial adjustment instrument, anchor clamps and die sites among Fig. 1.

Fig. 3 is clamp structure and clamping chip structure synoptic diagram.

Fig. 4 is a structural representation behind the anchor clamps clamping chip.

Embodiment

Referring to Fig. 1, Fig. 2, chip-detecting apparatus of the present utility model has a stand 1, stand 1 is by three layers of distribution, and the upper strata is a projection screen 2, and the middle level is equipped with light engine 3 and six axial adjustment instrument 4, lower floor is a computing machine 7, catoptron 8 is positioned at light engine 3 tops and tilts to be installed on the stand 1, and computing machine 7 is connected by data line with the driving circuit of light engine 3, is light engine 3 output image signals, be provided with shading baffle plate 10 around the optics engine 3 on the stand 1, be used to avoid extraneous light to disturb.Anchor clamps 5 are fixed on six axial adjustment instrument, 4 front ends and are used for clamping chip under test 6.The light engine 3 that is used for projection is the ray machines that removed one tunnel light path chip, light engine 3, clamping have the anchor clamps 5 of chip under test 6 to be positioned at display screen 2 back sides formation back projection mode, catoptron 8 reflexes to display screen 2 with the light of light engine 3 camera lenses projection, and display screen 2 becomes image with the light video picture that catoptron 8 reflects.Air gun 9 is used for blowing off dust by pneumatic circuit control when chip 6 surfaces fall ash.Pneumatic circuit adopts conventional pneumatic circuit.

Referring to Fig. 2, Fig. 3, Fig. 4, anchor clamps 5 are by seat board 51, two

side plates

52,53, two sliding

thick sticks

54,55 anchor clamps frames that constitute and moving grip block 56, quiet grip block 57 is formed, two side plates 52 of anchor clamps frame, 53 with seat board 51 vertical welding, two sliding

thick sticks

54,55 are connected two side plates 52, between 53, moving grip block 56, quiet grip block 57 is enclosed within two sliding thick sticks 54, on 55, quiet grip block 57 is fixedlyed connected with side plate 52, moving grip block 56 can be at two sliding thick sticks 54, slide on 55, moving grip block 56, quiet grip block 57 is provided with the alignment pin 58 that cooperates with dowel hole on the chip under

test

6,59, moving grip block 56 is controlled at two sliding thick sticks 54 by pneumatic circuit, move on 55 and will be positioned at moving grip block 56, chip under test 6 between the quiet grip block 57 clamps or unclamps.The seat board 51 of anchor clamps 5 is connected the front end of six axial adjustment instrument 4 by screw.Six axial adjustment instrument 4 adopt the known technology product, six axial adjustment instrument can be adjusted the six direction of chip 6: X-axis, Y-axis, Z axle, rotate, rotate, rotate around the Z axle around Y-axis around X-axis, use the position that six axial adjustment instrument can very accurate adjustment chip 6, make the image focusing that projects very clear, just can see defective or flaw easily when observing image like this.During detection, manually control six axial adjustment instrument move near the light engine assigned position along Y direction slide rail 11, make chip under test 6 just arrive the test trough place of light engine, thereby make light engine 3, clamping have anchor clamps 5 both positions of chip under test 6 to be corresponding relation.

Claims

1, a kind of chip-detecting apparatus, it is characterized in that: comprise stand (1), display screen (2), light engine (3), six axial adjustment instrument (4), anchor clamps (5), signal generator or computing machine (7), catoptron (8), stand is by three layers of distribution, described display screen (2) is installed in the upper strata of stand, light engine (3), six axial adjustment instrument (4) are installed in the middle level of stand, signal generator or computing machine (7) are placed on the lower floor of stand, catoptron (8) is positioned at light engine (3) top and tilts to be installed on the stand (1), and anchor clamps (5) are fixed on six axial adjustment instrument (4) front ends and are used for clamping chip under test (6); Described light engine (3) is the light engine that has removed one tunnel light path chip, and described light engine (3), clamping have both positions correspondences of anchor clamps (5) of chip under test (6) and be positioned at display screen (2) back side formation back projection mode; Described signal generator or computing machine (7) are connected by data line with the driving circuit of light engine (4), are light engine (4) output image signal; Described stand (1) is provided with shading baffle plate (10) around going up light engine.

2, chip-detecting apparatus according to claim 1 is characterized in that: also be provided with pneumatic circuit; Described anchor clamps (5) are by seat board (51), two side plates (52), (53), two sliding thick sticks (54), (55) anchor clamps frame of Gou Chenging and moving grip block (56), quiet grip block (57) is formed, two side plates (52) of anchor clamps frame, (53) with vertical connection of seat board (51), two sliding thick sticks (54), (55) be connected two side plates (52), (53) between, moving grip block (56), quiet grip block (57) is enclosed within two sliding thick sticks (54), (55) on, quiet grip block (57) is fixedlyed connected with side plate (52), moving grip block (56) can be on two sliding thick sticks (54), (55) slide, moving grip block (56), quiet grip block (57) is provided with chip under test (6) and goes up the alignment pin (58) that dowel hole cooperates, (59), moving grip block (56) is controlled at two sliding thick sticks (54) by described pneumatic circuit, (55) last moving will be positioned at moving grip block (56), chip under test (6) between the quiet grip block (57) clamps or unclamps.

3, as chip-detecting apparatus as described in the claim 2, it is characterized in that: also be connected with the air gun (9) that is used to clear up chip under test (6) surface dirt on the described pneumatic circuit.