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Method for testing reliability of laser projector

A technology for laser projectors and testing methods, which is applied in optical instrument testing, vibration testing, impact testing, etc., can solve problems such as damage to laser projectors, and achieve the effects of prolonging service life, expanding the scope of use, and improving reliability

Inactive Publication Date: 2016-02-03
四川华渥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Laser projectors are often placed in different environments during use. The environment has a great impact on the performance of the projector. The harsh environment can easily damage the laser projector.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Laser projector reliability test method, comprises the following steps:

[0026] S1. Perform high temperature resistance and high humidity heat test: place the test sample in an environment with a temperature of 55°C and a relative humidity of 93% for 2.5 hours, and then place the sample in an environment with room temperature and a relative humidity of 75% for 2.5 hours. hours, and then check that the sample is functioning properly;

[0027] S2. Perform high and low temperature cycle test: Place the sample after the test in step S1 in a temperature-controllable airtight container for high and low temperature cycle test. The temperature in the airtight container is cycled according to 25°C → -10°C → 40°C → 25°C Carry out 10 cycles of transformation. During the transformation process, perform temperature transformation at a speed of 1°C / min, and keep warm at -10°C and 40°C for 3 hours each. After the cycle is over, check whether the sample can operate normally;

[0028]...

Embodiment 2

[0038] Laser projector reliability test method, comprises the following steps:

[0039] S1. Perform high temperature resistance and high humidity heat test: place the test sample in an environment with a temperature of 60°C and a relative humidity of 95% for 3 hours, and then place the sample in an environment with room temperature and a relative humidity of 80% for 3 hours hours, and then check that the sample is functioning properly;

[0040] S2. Perform high and low temperature cycle test: Place the sample after the test in step S1 in a temperature-controllable airtight container for high and low temperature cycle test. The temperature in the airtight container is cycled according to 25°C → -10°C → 40°C → 25°C Carry out 12 cyclic transformations. During the transformation process, the temperature transformation is carried out at a speed of 1°C / min, and the temperatures are kept at -10°C and 40°C for 4 hours each. After the cycle is over, check whether the sample can operate...

Embodiment 3

[0051] Laser projector reliability test method, comprises the following steps:

[0052] S1. Perform high temperature resistance and high humidity heat test: place the test sample in an environment with a temperature of 50°C and a relative humidity of 90% for 2 hours, and then place the sample in an environment with room temperature and a relative humidity of 70% for 2 hours hours, and then check that the sample is functioning properly;

[0053] S2. Perform high and low temperature cycle test: Place the sample after the test in step S1 in a temperature-controllable airtight container for high and low temperature cycle test. The temperature in the airtight container is cycled according to 25°C → -10°C → 40°C → 25°C Carry out 8 cycles of transformation. During the transformation process, perform temperature transformation at a speed of 1°C / min, and keep warm at -10°C and 40°C for 2 hours each. After the cycle is over, check whether the sample can operate normally;

[0054] S3. P...

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PUM

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Abstract

The invention discloses a method for testing the reliability of a laser projector. The method comprises the steps of S1, placing test samples in an environment at a temperature of 50-60 DEG C and at a relative humidity of 90%-95% for 2-3 hours; S2, placing samples in a temperature-controllable sealed container for the high and low temperature cycle test, wherein the temperature in the sealed container is successively 25 DEG C, -10 DEG C, 40 DEG C and 25 DEG C and is cyclically transformed for 8-12 cycles; S3, placing samples tested to be qualified during the step S2 in an environment for the high-altitude test at an atmospheric pressure of 50-60 kPa; S4, subjecting packaged samples to the vibration test in a direction vertical to the bottom surface; S5, for one corner, three edges and six surfaces of each packaged sample, subjecting the packaged sample to the drop test or the collision test in the following order. According to the technical scheme of the invention, a variety of tests can be conducted on a laser projector, so that the laser projector can be accommodated in a variety of complex and harsh environments. Meanwhile, the application range of the laser projector is expanded, and the reliability of the laser projector is improved. The service life of the laser projector is prolonged.

Description

technical field [0001] The invention belongs to the technical field of product testing, and in particular relates to a reliability testing method of a laser projector. Background technique [0002] Laser projectors use laser beams to project images. Among them, the optical components of the laser projector are mainly composed of red, green and blue three-color light valves, beam combining X prisms, projection lenses and driving light valves. In a laser projector there are red, green and blue lasers. The laser beam is expanded by corresponding optical elements and processing chips in the machine, and then transmitted to the X prism to integrate the three beams of laser light, and then the integrated laser light is transmitted to the projection screen by the projection objective lens to complete the entire laser projector display process . [0003] We know that the current mainstream projector solutions are DLP and 3LCD. Among them, 3LCD uses red, green, and blue three-colo...

Claims

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Application Information

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IPC IPC(8): G01M11/00G01M7/02G01M7/08
Inventor 何静
Owner 四川华渥科技有限公司
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