CN105300660A - Method for testing reliability of laser projector - Google Patents
Method for testing reliability of laser projector Download PDFInfo
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- CN105300660A CN105300660A CN201510601005.4A CN201510601005A CN105300660A CN 105300660 A CN105300660 A CN 105300660A CN 201510601005 A CN201510601005 A CN 201510601005A CN 105300660 A CN105300660 A CN 105300660A
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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
The invention belongs to Product checking technical field, particularly a kind of laser-projector method for testing reliability.
Background technology
Laser-projector uses laser beam to transmit picture.Wherein the optics of laser-projector is primarily of redgreenblue light valve, conjunction bundle X prism, projection lens and driving light valve.Red, green, blue three look laser is had in laser-projector.Three beams of laser is integrated being transmitted to X prism again in machine after the expanding of corresponding optical element and process chip by laser, and then by projection objective by the laser-transmitting after integrating on projection screen, complete whole laser-projector procedure for displaying.
We know that the scheme of the projector of current main flow is DLP and 3LCD, and wherein 3LCD is by red, green, blue three dichroic liquid crystal plate, and scioptics amplify and reflective mirror transmits.DLP working method then by light by blend of colors after colour wheel High Rotation Speed.Eventually pass prism transmission to go out.Although have advantage separately, it should be noted that these two kinds of modes are all to use bulb, bulb has the life-span, and picture brightness all can only be relative enough at last with the purity of color.Laser-projector makes up 3LCD and DLP two kinds of projection pattern defects exactly.I.e. long working life, will cause screen intensity dimmed because working for a long time; Colour gamut is extensive, is the colour gamut about 2 times of general projectors.
Generating laser is longer compared with the life-span of conventional bulb, and non-friable, can plug and play, and projector can bring picture that is maximum, most feeling of immersion for user.Laser instrument only creates the color of needs, and therefore energy consumption is lower, and laser instrument can produce the light of any wavelength.Thus, without the need to worrying brightness problem, equipment can produce the broader color of scope, closer to the limit that human eye can identify.In addition, laser projection device is without the need to the very long switching on and shutting down stand-by period, if use conventional types, the time of start preheating and the rear cooling of shutdown is quite long.This advantage can be embodied in contrast, for user presents more surprising details effect.
This concept of laser-projector has been said a lot of year, and relevant product has had listing and has been applied in real life.As the outdoor projection display in the stadium of athletic meeting in 2008 and the display application of some cinemas.But at office, education, laser-projector on home entertaining market or phoenix feathers and unicorn horns.
Laser-projector is in use often positioned in different environment and uses, and the performance of environment to projector has a huge impact, and rugged environment is easy to laser-projector is damaged.Therefore after projector has been produced, need the test reliability of projector being carried out to specialty.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of by having carried out high-temp resisting high-humidity resisting Thermal test, high hollow testing to laser-projector and having fallen or the multiple test such as collision, laser-projector is enable to adapt to various complicated rugged environment, can the usable range of expansion of laser light projector, improve the laser-projector method for testing reliability of laser-projector reliability.
The object of the invention is to be achieved through the following technical solutions: laser-projector method for testing reliability, comprises the following steps:
S1, carry out high temperature resistant, high humidity Thermal test: test sample is placed on temperature is 50 ~ 60 DEG C, relative humidity is continue 2 ~ 3 hours in the environment of 90% ~ 95%, sample is placed on room temperature again, relative humidity be in the environment of 70% ~ 80% keep 2 ~ 3 hours, then can sample for reference run well;
S2, carry out high/low temperature loop test: in the closed container that the sample after being tested by step S1 is placed on temperature control, carry out high/low temperature loop test, temperature in closed container according to 25 DEG C →-10 DEG C → 40 DEG C → 25 DEG C for the cycle carries out 8 ~ 12 cyclic transformations, temperature inversion is carried out according to the speed of 1 DEG C/min in conversion process, and be respectively incubated 2 ~ 4 hours at-10 DEG C and 40 DEG C of temperature spots, after circulation terminates, can sample for reference run well;
S3, carry out high hollow testing: the sample of S2 test passes being placed on atmospheric pressure is carry out high hollow testing in the environment of 50 ~ 60kPa, the atmospheric pressure of environment progressively declines according to the speed of 10kPa/min, until after pressure drop to room pressure, can sample for reference run well;
S4, carry out vibration-testing: the vibration-testing perpendicular to direction, bottom surface is carried out to the sample of band packaging;
S5, the sample qualified to vibration-testing carry out drop test: for an angle of sample, three seamed edges and six faces, fall or impact test in the following order to the sample of band packaging:
S51, fall an angle, and fall the most minor face at this angle, the second long limit at this angle and the longest edge at this angle successively;
S52, fall a minimum face, and fall the relative face of minimal face;
S53, fall medium sized, and fall medium relative face;
S54, fall a maximum plane, and fall the relative face of largest face.
Test of the present invention adopts GB/T11326-2006 standard.Further, the vibration-testing in described step S4 comprises following two steps:
S41, by the vibration frequency of sample according to 10 → 30 → 10Hz be loop cycle test 4 ~ 6 times, vibration displacement amplitude is 0.7 ~ 0.8mm;
S42, by the vibration frequency of sample according to 35 → 50 → 35HZ be loop cycle test 4 ~ 6 times, vibration displacement amplitude is 0.1 ~ 0.2mm.
Further, the height fallen in described step S5 is 70 ~ 80cm.
The invention has the beneficial effects as follows: by having carried out high-temp resisting high-humidity resisting Thermal test, high/low temperature loop test, high hollow testing, vibration-testing to laser-projector and having fallen or the multiple test such as collision, make laser-projector can adapt to various complicated rugged environment, can the usable range of expansion of laser light projector, improve the reliability of laser-projector, increase the service life.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1
Laser-projector method for testing reliability, comprises the following steps:
S1, carry out high temperature resistant, high humidity Thermal test: test sample is placed on temperature is 55 DEG C, relative humidity is continue 2.5 hours in the environment of 93%, sample is placed on room temperature again, relative humidity be in the environment of 75% keep 2.5 hours, then can sample for reference run well;
S2, carry out high/low temperature loop test: in the closed container that the sample after being tested by step S1 is placed on temperature control, carry out high/low temperature loop test, temperature in closed container according to 25 DEG C →-10 DEG C → 40 DEG C → 25 DEG C for the cycle carries out 10 cyclic transformations, temperature inversion is carried out according to the speed of 1 DEG C/min in conversion process, and be respectively incubated 3 hours at-10 DEG C and 40 DEG C of temperature spots, after circulation terminates, can sample for reference run well;
S3, carry out high hollow testing: the sample of S2 test passes being placed on atmospheric pressure is carry out high hollow testing in the environment of 55kPa, the atmospheric pressure of environment progressively declines according to the speed of 10kPa/min, until after pressure drop to room pressure, can sample for reference run well;
S4, carry out vibration-testing: the vibration-testing perpendicular to direction, bottom surface is carried out to the sample of band packaging; Specifically comprise following two steps:
S41, be that loop cycle tests 5 times by the vibration frequency of sample according to 10 → 30 → 10Hz, vibration displacement amplitude is 0.75mm;
S42, be that loop cycle tests 5 times by the vibration frequency of sample according to 35 → 50 → 35HZ, vibration displacement amplitude is 0.15mm;
S5, the sample qualified to vibration-testing carry out drop test: for an angle of sample, three seamed edges and six faces, and fall or impact test the sample of band packaging in the following order, the height fallen is 70 ~ 80cm:
S51, fall an angle, and fall the most minor face at this angle, the second long limit at this angle and the longest edge at this angle successively;
S52, fall a minimum face, and fall the relative face of minimal face;
S53, fall medium sized, and fall medium relative face;
S54, fall a maximum plane, and fall the relative face of largest face.
Embodiment 2
Laser-projector method for testing reliability, comprises the following steps:
S1, carry out high temperature resistant, high humidity Thermal test: test sample is placed on temperature is 60 DEG C, relative humidity is continue 3 hours in the environment of 95%, sample is placed on room temperature again, relative humidity be in the environment of 80% keep 3 hours, then can sample for reference run well;
S2, carry out high/low temperature loop test: in the closed container that the sample after being tested by step S1 is placed on temperature control, carry out high/low temperature loop test, temperature in closed container according to 25 DEG C →-10 DEG C → 40 DEG C → 25 DEG C for the cycle carries out 12 cyclic transformations, temperature inversion is carried out according to the speed of 1 DEG C/min in conversion process, and be respectively incubated 4 hours at-10 DEG C and 40 DEG C of temperature spots, after circulation terminates, can sample for reference run well;
S3, carry out high hollow testing: the sample of S2 test passes being placed on atmospheric pressure is carry out high hollow testing in the environment of 60kPa, the atmospheric pressure of environment progressively declines according to the speed of 10kPa/min, until after pressure drop to room pressure, can sample for reference run well;
S4, carry out vibration-testing: the vibration-testing perpendicular to direction, bottom surface is carried out to the sample of band packaging; Specifically comprise following two steps:
S41, be that loop cycle tests 6 times by the vibration frequency of sample according to 10 → 30 → 10Hz, vibration displacement amplitude is 0.8mm;
S42, be that loop cycle tests 6 times by the vibration frequency of sample according to 35 → 50 → 35HZ, vibration displacement amplitude is 0.2mm.
S5, the sample qualified to vibration-testing carry out drop test: for an angle of sample, three seamed edges and six faces, and fall or impact test the sample of band packaging in the following order, the height fallen is 80cm:
S51, fall an angle, and fall the most minor face at this angle, the second long limit at this angle and the longest edge at this angle successively;
S52, fall a minimum face, and fall the relative face of minimal face;
S53, fall medium sized, and fall medium relative face;
S54, fall a maximum plane, and fall the relative face of largest face.
Embodiment 3
Laser-projector method for testing reliability, comprises the following steps:
S1, carry out high temperature resistant, high humidity Thermal test: test sample is placed on temperature is 50 DEG C, relative humidity is continue 2 hours in the environment of 90%, sample is placed on room temperature again, relative humidity be in the environment of 70% keep 2 hours, then can sample for reference run well;
S2, carry out high/low temperature loop test: in the closed container that the sample after being tested by step S1 is placed on temperature control, carry out high/low temperature loop test, temperature in closed container according to 25 DEG C →-10 DEG C → 40 DEG C → 25 DEG C for the cycle carries out 8 cyclic transformations, temperature inversion is carried out according to the speed of 1 DEG C/min in conversion process, and be respectively incubated 2 hours at-10 DEG C and 40 DEG C of temperature spots, after circulation terminates, can sample for reference run well;
S3, carry out high hollow testing: the sample of S2 test passes being placed on atmospheric pressure is carry out high hollow testing in the environment of 50kPa, the atmospheric pressure of environment progressively declines according to the speed of 10kPa/min, until after pressure drop to room pressure, can sample for reference run well;
S4, carry out vibration-testing: the vibration-testing perpendicular to direction, bottom surface is carried out to the sample of band packaging; Specifically comprise following two steps:
S41, be that loop cycle tests 4 times by the vibration frequency of sample according to 10 → 30 → 10Hz, vibration displacement amplitude is 0.7mm;
S42, be that loop cycle tests 4 times by the vibration frequency of sample according to 35 → 50 → 35HZ, vibration displacement amplitude is 0.1mm;
S5, the sample qualified to vibration-testing carry out drop test: for an angle of sample, three seamed edges and six faces, and fall or impact test the sample of band packaging in the following order, the height fallen is 70cm:
S51, fall an angle, and fall the most minor face at this angle, the second long limit at this angle and the longest edge at this angle successively;
S52, fall a minimum face, and fall the relative face of minimal face;
S53, fall medium sized, and fall medium relative face;
S54, fall a maximum plane, and fall the relative face of largest face.
Embodiment 4
Laser-projector method for testing reliability, comprises the following steps:
S1, carry out high temperature resistant, high humidity Thermal test: test sample is placed on temperature is 50 DEG C, relative humidity is continue 3 hours in the environment of 90%, sample is placed on room temperature again, relative humidity be in the environment of 70% keep 3 hours, then can sample for reference run well;
S2, carry out high/low temperature loop test: in the closed container that the sample after being tested by step S1 is placed on temperature control, carry out high/low temperature loop test, temperature in closed container according to 25 DEG C →-10 DEG C → 40 DEG C → 25 DEG C for the cycle carries out 12 cyclic transformations, temperature inversion is carried out according to the speed of 1 DEG C/min in conversion process, and be respectively incubated 4 hours at-10 DEG C and 40 DEG C of temperature spots, after circulation terminates, can sample for reference run well;
S3, carry out high hollow testing: the sample of S2 test passes being placed on atmospheric pressure is carry out high hollow testing in the environment of 60kPa, the atmospheric pressure of environment progressively declines according to the speed of 10kPa/min, until after pressure drop to room pressure, can sample for reference run well;
S4, carry out vibration-testing: the vibration-testing perpendicular to direction, bottom surface is carried out to the sample of band packaging; Specifically comprise following two steps:
S41, be that loop cycle tests 6 times by the vibration frequency of sample according to 10 → 30 → 10Hz, vibration displacement amplitude is 0.8mm;
S42, be that loop cycle tests 4 times by the vibration frequency of sample according to 35 → 50 → 35HZ, vibration displacement amplitude is 0.2mm;
S5, the sample qualified to vibration-testing carry out drop test: for an angle of sample, three seamed edges and six faces, and fall or impact test the sample of band packaging in the following order, the height fallen is 8cm:
S51, fall an angle, and fall the most minor face at this angle, the second long limit at this angle and the longest edge at this angle successively;
S52, fall a minimum face, and fall the relative face of minimal face;
S53, fall medium sized, and fall medium relative face;
S54, fall a maximum plane, and fall the relative face of largest face.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (3)
1. laser-projector method for testing reliability, is characterized in that, comprises the following steps:
S1, carry out high temperature resistant, high humidity Thermal test: test sample is placed on temperature is 50 ~ 60 DEG C, relative humidity is continue 2 ~ 3 hours in the environment of 90% ~ 95%, sample is placed on room temperature again, relative humidity be in the environment of 70% ~ 80% keep 2 ~ 3 hours, then can sample for reference run well;
S2, carry out high/low temperature loop test: in the closed container that the sample after being tested by step S1 is placed on temperature control, carry out high/low temperature loop test, temperature in closed container according to 25 DEG C →-10 DEG C → 40 DEG C → 25 DEG C for the cycle carries out 8 ~ 12 cyclic transformations, temperature inversion is carried out according to the speed of 1 DEG C/min in conversion process, and be respectively incubated 2 ~ 4 hours at-10 DEG C and 40 DEG C of temperature spots, after circulation terminates, can sample for reference run well;
S3, carry out high hollow testing: the sample of S2 test passes being placed on atmospheric pressure is carry out high hollow testing in the environment of 50 ~ 60kPa, the atmospheric pressure of environment progressively declines according to the speed of 10kPa/min, until after pressure drop to room pressure, can sample for reference run well;
S4, carry out vibration-testing: the vibration-testing perpendicular to direction, bottom surface is carried out to the sample of band packaging;
S5, the sample qualified to vibration-testing carry out drop test: for an angle of sample, three seamed edges and six faces, fall or impact test in the following order to the sample of band packaging:
S51, fall an angle, and fall the most minor face at this angle, the second long limit at this angle and the longest edge at this angle successively;
S52, fall a minimum face, and fall the relative face of minimal face;
S53, fall medium sized, and fall medium relative face;
S54, fall a maximum plane, and fall the relative face of largest face.
2. laser-projector method for testing reliability according to claim 1, is characterized in that, the vibration-testing in described step S4 comprises following two steps:
S41, by the vibration frequency of sample according to 10 → 30 → 10Hz be loop cycle test 4 ~ 6 times, vibration displacement amplitude is 0.7 ~ 0.8mm;
S42, by the vibration frequency of sample according to 35 → 50 → 35HZ be loop cycle test 4 ~ 6 times, vibration displacement amplitude is 0.1 ~ 0.2mm.
3. laser-projector method for testing reliability according to claim 1, is characterized in that, the height fallen in described step S5 is 70 ~ 80cm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248329A (en) * | 2016-07-13 | 2016-12-21 | 浙江省东阳市诚基电机有限公司 | A kind of method for testing vibration of mobile phone vibrating motor |
| CN112234411A (en) * | 2020-10-15 | 2021-01-15 | 西南技术物理研究所 | Anti-detuning method for resonant cavity of vehicle-mounted solid laser |
| CN112798241A (en) * | 2020-12-28 | 2021-05-14 | 中检华通威国际检验(苏州)有限公司 | Medical instrument reliability detection method aiming at temperature transformation |
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Cited By (3)
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|---|---|---|---|---|
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