CN211656292U - Three-dimensional optical test platform for camera module - Google Patents

Abstract

The utility model discloses a be used for three-dimensional optical test platform of camera module relates to the optics test field, need carry out all kinds of relevant tests to current camera module after the equipment is accomplished, including dynamic range test, color reducibility test, white balance test, distortion test scheduling problem. For this reason, a convenient and practical platform is designed to solve the problems. According to the standard, the specification and the test method of the test items of the camera module, experimenters set parameters of the high-brightness wide-color-temperature light source and switch different test graphic cards, adjust the three-dimensional space positions of the camera module and the test graphic cards at the same time, shoot pictures and generate pictures, and complete various related tests through professional software analysis. The utility model discloses simple and convenient, the maneuverability is strong, measurement accuracy is high for the structure, and satisfying camera module that can be fine carries out all kinds of relevant tests, is one set of convenient and practical's camera module test platform convenient to popularize.

Description

Three-dimensional optical test platform for camera module

Technical Field

The utility model relates to an optics test field especially relates to camera module and need carry out all kinds of relevant tests after the equipment is accomplished.

Background

With the development of technology, camera modules have been widely used in various consumer and industrial image products, such as automobile images, security monitoring, smart homes, mobile phones, and the like. Due to the expansion of application scenes of various products, the current consumers are not satisfied with the basic functions of the camera module. The quality of the camera becomes an important reference index when the consumer purchases the product, and the evaluation of each large IT website is specialized. Therefore, in the development stage of the camera module, it is very important to measure the image quality of the camera module. Limited by manpower and material resources, a large number of camera module manufacturers or mobile phone manufacturers have not been able to build a professional optical laboratory. For this reason we have designed one set of simple and convenient, the maneuverability is strong, measurement accuracy is high, and the satisfying camera module that can be fine carries out the experiment platform including relevant tests such as dynamic range test, color reducibility test, white balance test, distortion test, the utility model discloses the platform can dispose multiple test card and cooperate the wide colour temperature light source of hi-lite to carry out the accurate test. The camera module testing platform is convenient to use, practical and popularize.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be used for three-dimensional optical test platform of camera module has solved the camera module and need carry out all kinds of relevant test demands after the equipment is accomplished.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a three-dimensional optical test platform for camera module comprises an experiment platform, a high-brightness wide color temperature light source, a test chart card converter, a test chart card, a linear sliding table guide rail X shaft, a fine adjustment lifting sliding table Z shaft, a microspur sliding table guide rail Y shaft, a camera module fixture and a tested camera module, wherein an adjustment base is symmetrically arranged below the experiment platform along the length direction of the experiment platform to adjust the level of the experiment platform, the high-brightness wide color temperature light source is fixed on one side of the experiment platform, the test chart card converter is fixed on the edge of a light emitting surface of a light source, the test chart card is fixed on the converter, the linear sliding table guide rail X shaft is fixed above the experiment platform and is positioned in front of a vertical central plane of the light emitting surface of the high-brightness wide color temperature light source, the fine adjustment lifting sliding table Z shaft is fixed on the linear sliding table guide rail X shaft, the, and the camera module fixture is fixed on the Y-axis of the guide rail of the fixed microspur sliding table, and the adjusting ranges of the Y-axis and the Z-axis can ensure that the center of the tested camera module is aligned with the center of the test chart.

Preferably, the experiment platform is formed by fine machining of high-quality solid aluminum alloy, standard threaded holes are arranged on the table board in an array mode, the threaded holes penetrate through the experiment platform, and the assembly is conveniently installed from any one side.

Preferably, the high-brightness wide-color-temperature light source can realize the adjustability of color temperature and illumination, and provides illumination for the transmission type test chart.

Preferably, the high-brightness wide-color-temperature light source has a light source light-emitting surface edge fixed with a test graphic card converter, and the test graphic card converter adopts vertical, left or right clamping grooves, so that different test cards can be conveniently fixed and switched.

Preferably, the X axis of the linear sliding block guide rail is formed by fine machining of high-quality aluminum alloy, a double-axial guide rail is arranged in the X axis, the guide rail is fixed on the experiment platform through a fixed block, and the Z axis of the lifting sliding table is fixed and finely adjusted on the sliding block through screws.

Preferably, finely tune lift slip table Z axle, adopt and take scale long stroke rack and pinion slip table guide rail, the guide rail back is fixed with the strengthening rib, and guide rail bottom L type structure is fixed in on the linear guide X axle slip table through the screw.

Preferably, the microspur sliding table guide rail Y shaft is of a screw feeding type with a scale screw, is fixed on the fine adjustment lifting sliding table Z shaft in the center through an L-shaped connecting block, and is kept parallel to the experiment platform and perpendicular to the linear guide rail.

Preferably, camera mode anchor clamps adopt universal bulb design, and adjustable anchor clamps scope can be controlled from top to bottom, and the three-dimensional rotation is fixed in microspur slip table guide rail Y through L type connecting block epaxially, camera module anchor clamps base keeps and finely tunes the lift slip table Z axle with microspur slip table guide rail Y axle parallel and perpendicular to.

The utility model has the advantages that: the utility model discloses simple and convenient, the maneuverability is strong, measurement accuracy is high for the structure, and satisfying camera module that can be fine carries out all kinds of relevant tests, is one set of convenient and practical's camera module test platform convenient to popularize.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic structural view of a linear slide table rail fixing block in FIG. 1;

fig. 4 is a schematic structural view of the light source fixing block in fig. 1;

FIG. 5 is a schematic view of the light source block shown in FIG. 1;

FIG. 6 is a gray scale test transmission test card;

FIG. 7 is a high dynamic range transmissive test card.

Reference numbers in the figures: the device comprises an experiment platform 1, a high-brightness wide color temperature light source 2, a light source stop block 3, a test graphic card converter 4, a test graphic card 5, a linear sliding table guide rail X shaft 6, a fine adjustment lifting sliding table Z shaft 7, a fine adjustment sliding table guide rail Y shaft 8, a camera module clamp 9, a linear sliding table guide rail fixing block 10, an adjustment base 11, a light source fixing block 12 and a camera module 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-7, a three-dimensional optical test platform for a camera module comprises an experiment platform, a high-brightness wide-color-temperature light source, a test chart card converter, a test chart card, a linear sliding table guide rail X-axis, a fine-tuning lifting sliding table Z-axis, a microspur sliding table guide rail Y-axis, a camera module fixture and a tested camera module.

Referring to fig. 1-2, the adjusting bases are symmetrically arranged below the experiment platform along the length direction of the experiment platform, and the experiment platform is adjusted to be horizontal. A high-brightness wide-color-temperature light source is fixed on one side of the experiment platform, a test chart converter is fixed on the edge of a light emitting surface of the light source, and the test chart is fixed on the converter. The X-axis of the linear sliding table guide rail is fixed above the experiment platform and positioned in front of a vertical central plane of a light emitting surface of a high-brightness wide-color-temperature light source, a fine-tuning lifting sliding table Z-axis is fixed on the X-axis sliding table of the linear sliding table guide rail, a microspur sliding table guide rail Y-axis is fixed on the fine-tuning lifting sliding table Z-axis, and a camera module fixture is fixed on the fixed microspur sliding table guide rail Y-axis. The camera module clamp has adjustable range and can fix the camera module within a certain range.

The working principle is as follows: the utility model discloses when using, according to standard, the test method of camera module test item, the experimenter is through setting for the wide colour temperature light source parameter of hi-lite and switching different test graphic cards, adjusts the three-dimensional space position of camera module and test graphic card simultaneously, and the formation picture of shooing is through professional software analysis, accomplishes all kinds of relevant tests.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. A three-dimensional optical test platform for a camera module is characterized by comprising an experiment platform (1), an adjusting base (11), a high-brightness wide color temperature light source (2), a light source fixing block (12), a light source blocking block (3), a test chart card converter (4), a test chart card (5), a linear sliding table guide rail X shaft (6), a linear sliding table guide rail fixing block (10), a fine-tuning lifting sliding table Z shaft (7), a microspur sliding table guide rail Y shaft (8) and a camera module clamp (9), wherein the adjusting base (11) is symmetrically arranged below the platform along the length direction of the experiment platform (1), the high-brightness wide color temperature light source (2) is fixed on one side of the experiment platform (1), the light source light-emitting surface edge test chart card converter (4) is fixed on the converter, the linear sliding table guide rail X shaft (6) is fixed on the experiment platform (1), be located wide colour temperature light source (2) of hi-lite play plain noodles perpendicular central plane the place ahead, fixed fine setting lift slip table Z axle (7) on the slip table of linear sliding table guide rail X axle (6), fixed microspur slip table guide rail Y axle (8) on fine setting lift slip table Z axle (7), fixed camera module anchor clamps (9) on microspur slip table guide rail Y axle (8), microspur slip table guide rail Y axle (8) and fine setting lift slip table Z axle (7) control range can guarantee to be surveyed the center of camera module center alignment test chart card.

2. The three-dimensional optical test platform for the camera module according to claim 1, wherein standard threaded holes are arranged on the table top array of the experiment platform (1) to facilitate fixing of experiment equipment.

3. The three-dimensional optical test platform for the camera module according to claim 1, wherein the test card converter (4) is fixed at the edge of the light-emitting surface of the high-brightness wide-color-temperature light source (2), and the test card converter (4) adopts a slot in three directions, namely, up-down direction, left-right direction or right-left direction, so as to facilitate the switching of different test cards.

4. The three-dimensional optical test platform for the camera module according to claim 1, wherein the linear sliding table guide rail X shaft (6) is formed by fine machining of high-quality aluminum alloy, a double-axial guide rail is arranged in the linear sliding table guide rail X shaft, the guide rail is fixed on the experiment platform (1) through a fixing block, and the sliding block is fixed with a fine-tuning lifting sliding table Z shaft (7) through a screw.

5. The three-dimensional optical test platform for the camera module according to claim 1, wherein the fine adjustment lifting sliding table Z shaft (7) adopts a long-stroke gear rack sliding table guide rail with scales.

6. The three-dimensional optical test platform for the camera module according to claim 1, wherein the microspur slide rail Y-axis (8) is fixed on a fine adjustment lifting slide Z-axis (7) slide by adopting a screw feeding type with a scale screw, and the microspur slide rail Y-axis (8) is kept parallel to the experiment platform and is perpendicular to the linear guide rail.

7. The three-dimensional optical test platform for the camera module according to claim 1, characterized in that the camera module fixture (9) adopts a universal ball head design, can rotate vertically, horizontally and stereoscopically, and the base of the camera module fixture (9) is kept parallel to the Y axis (8) of the microspur slide guide rail and perpendicular to the Z axis (7) of the fine adjustment lifting slide.

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