Device and method for testing switch threshold of infrared secondary light source of camera
An auxiliary light source and camera technology, applied in optics, photography, image communication, etc., can solve problems such as inaccurate switch threshold, difficult to turn on the infrared light, inflexible and convenient use, etc., to achieve simple structure, simple and clear test process, The effect of taking up little space
Inactive Publication Date: 2011-06-01
吉安东南光电股份有限公司
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Problems solved by technology
Nowadays, most cameras use infrared light with an infrared wavelength of 830-950nm, while the visible light wavelength of the human eye is 380-780nm. When the infrared light wavelength is above 830nm, it is difficult for the naked eye to distinguish whether the infrared light is turned on. If the above-mentioned known test method is used , the measured switching threshold is not accurate enough
Moreover, the known test method needs to set up a dedicated room, takes up a lot of space, and is not flexible and convenient enough to use
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[0012] Specific embodiments of the present invention are described in detail below in conjunction with accompanying drawings, a kind of camera infrared auxiliary light source switching threshold testing device and method of the present invention, refer to figure 1 , the test device includes a box body 1, an adapter plate 2, a shading cover 3, a light source board 4, an LED light 5, and a lighting control button 6. The box body 1 is a hollow structure, and an opening 11 is arranged on it. The matching plate 2 is detachably arranged on the outside of the opening 11. The adapter plate 2 is provided with an opening corresponding to the opening 11. According to the size of the lens of the camera 8, the adapter plate 2 can be replaced more conveniently. The shading cover 3 is arranged outside the circumference of the opening, and the shading cover 3 can effectively block the light outside the box 1 from shining on the lens of the camera 8 during the test, effectively preventing the p...
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The invention provides a device and method for testing the switch threshold of an infrared secondary light source of a camera. The device provided by the invention comprises a box body, an adaptive plate, a light shading sleeve, a light source plate, multiple LED (Light Emitting Diode) lamps and lighting control buttons the number of which corresponds to the number of the LED lamps, wherein the box body is in a hollow structure; an opening is formed at the upper part of the box body; the adaptive plate can be detachably arranged outside the opening; an open hole is formed on the adaptive plate; the open hole corresponds to the opening; the light shading sleeve is arranged outside the circumference of the open hole; the light source plate is arranged on the side wall in the box body corresponding to the opening; each LED lamp is arranged on the light source plate; each lighting control button is respectively arranged on the outside wall of the box body and electrically connected with the light source plate for controlling the corresponding LED lamp to be turned on or turned off; and a light absorbing layer is arranged on the inside wall of the box body. The current detection device is installed between the infrared LED of camera to be tested and the power supply. The testing device provided by the invention has the advantages of simple structure, small space occupation, accurate testing result and the like, and is flexible and convenient to use. The device and method provided by the invention have a simple testing course and is suitable for testing the switch threshold of the infrared secondary light source of a camera.
Description
technical field [0001] The invention relates to a camera testing device and method, in particular to a camera infrared auxiliary light source switch threshold testing device and method. Background technique [0002] In the TV monitoring system engineering, infrared lamps were rarely used in the past, but due to the increasing crime rate in today's society, the role of infrared rays in night monitoring is more prominent, not only in treasury, oil depot, armory, library, cultural relics department, prison It is adopted by other important departments, and is also adopted in the general monitoring system. Infrared cameras are even used in residential area TV monitoring projects, which shows that people's requirements for TV monitoring system engineering are becoming more and more standardized and higher, and more and more important places are required to achieve 24-hour continuous monitoring. [0003] Infrared camera, that is, in the night vision state, the camera will emit inf...
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IPC IPC(8): G03B43/00G03B15/05G01J1/42H04N5/225
Inventor 黄中元
Owner 吉安东南光电股份有限公司