Underwater xenon lamp and LED composite lighting device

A lighting device and LED power supply technology, which is applied in the direction of lighting devices, fixed lighting devices, lighting device components, etc., can solve the problems of reduced imaging contrast, uneven imaging brightness, and uneven distribution of light energy, etc., to expand the receiving field of view Field, guaranteed strength and uniformity effect

Inactive Publication Date: 2018-07-03
750 TEST SITE OF CHINA SHIPBUILDING IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the underwater propagation of ordinary light sources, the light spots scattered by the water body spread out in a horn shape, and the light energy distribution is uneven, which leads to uneven imaging brightness of the underwater photoelectric measurement system, and at the same time, the imaging contrast is reduced due to the backscattering of the water body

Method used

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  • Underwater xenon lamp and LED composite lighting device
  • Underwater xenon lamp and LED composite lighting device
  • Underwater xenon lamp and LED composite lighting device

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Provide lighting for underwater high-speed cameras in underwater optical measurement applications.

[0025] image 3 It is a schematic diagram of the lighting range of a composite lighting device with a beam angle of 18°, in which (a) xenon lamp lighting range, (b) LED lighting range, and (c) compound lighting range. Figure 4 It is a lighting effect picture of a composite lighting device with a beam angle of 18°, (a) xenon lamp lighting spot, (b) LED lighting spot, (c) compound lighting spot. Figure 5 It is a schematic diagram of the array lighting range of the composite lighting device. Image 6 It is a composite lighting device array lighting effect diagram.

[0026] By adjusting the position adjustment mechanism of the xenon lamp in the lighting device, the xenon lamp is reflected by the reflector to form a beam spot with a beam angle of 18°, such as Figure 4 As shown in (a), the light intensity distribution of the xenon light spot under underwater illumination presents...

Embodiment 2

[0029] Provide lighting for underwater cameras in underwater target detection applications

[0030] Figure 7 It is a schematic diagram of the lighting range of a composite lighting device with a beam angle of 5°, (a) xenon lamp lighting range, (b) LED lighting range, and (c) compound lighting range. Figure 8 It is a lighting effect picture of a composite lighting device with a beam angle of 5°, (a) xenon lamp lighting spot, (b) LED lighting spot, (c) compound lighting spot.

[0031] By adjusting the position adjustment mechanism of the xenon lamp in the lighting device, the xenon lamp is reflected by the reflector to form a spot with a beam angle of 5°, such as Figure 8 (a) Shown. According to the detection distance and illumination requirements of underwater targets, select LED light sources with appropriate brightness. Each LED light source emits a uniform spot with a beam angle of 3°. 6 LED light sources are installed around the xenon lamp according to the calculated angle. ...

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Abstract

The invention relates to an underwater xenon lamp and an LED composite lighting device. The underwater xenon lamp and the LED composite lighting device comprises watertight shells, a xenon lamp and aplurality of LEDs, wherein the xenon lamp and the plurality of LEDs are installed in the watertight shells; and the plurality of LEDs surround the xenon lamp. The advantages of high light efficiency of the xenon lamp and energy conservation and environment protection of LEDs are used by the underwater xenon lamp and the LED composite lighting device, the xenon lamp and the plurality of LEDs are installed in the watertight shells according to the designed position relation; the xenon lamp and the LEDs are used as independent light emitting point light sources, and when all the light emitting point light sources are in a light emitting working state, the light energy is enhanced due to the fact that the emitted light is overlapped; meanwhile, a receiving field of view is enlarged. The composite illumination mode can effectively ensure the intensity and uniformity of underwater illumination, so that the requirement for uniform illumination in a certain field-of-view range of the underwater photoelectric measurement system is met; and the invention is suitable for application occasions such as underwater high-speed imaging, underwater optical measurement and target detection.

Description

Technical field [0001] The invention relates to underwater lighting technology, in particular to underwater xenon lamps and LED composite lighting devices. Background technique [0002] As the water body has strong absorption and scattering effects on light waves, the light is seriously attenuated when it travels in the water, and the light almost disappears in water with a depth of more than ten meters. For optoelectronic imaging devices, light is a necessary condition for imaging. Especially in underwater high-speed camera applications, there are higher requirements for illuminance to increase the camera frame rate. Therefore, the underwater photoelectric measurement must have auxiliary lighting. The underwater auxiliary lighting effect of the lighting source will directly affect the imaging clarity, system detection distance and detection range of the underwater optical measurement system. When the ordinary light source propagates underwater, the light spot scattered by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V19/00F21V31/00F21Y113/20
CPCF21S8/00F21V19/00F21V19/001F21V31/005
Inventor 李宝顾青沈雁
Owner 750 TEST SITE OF CHINA SHIPBUILDING IND CORP
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