Solar blind ultraviolet imaging background light suppression optical system and method
An ultraviolet imaging and optical system technology, which is applied in the field of weak optical signal detection, can solve the problems of long detection distance, high requirements for detector sensitivity and narrow-band transmittance of optical filter, weak discharge signal, etc., and achieves low background interference , The design of the instrument is reasonable, the effect of clear imaging
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[0019] Example 1:
[0020] like figure 1 As shown in the figure, a solar-blind ultraviolet imaging background light suppression optical system, the incident light is divided into a visible light imaging optical path and an ultraviolet imaging optical path after an all-reflection all-lens A1 is placed obliquely; wherein the visible light imaging optical path is sequentially set as: visible light imaging objective lens 2 , visible light CCD3; the ultraviolet imaging optical path is set as follows: filter lens group, all-reflection all-lens B7, ultraviolet imaging objective lens 8, solar-blind filter 9, ultraviolet-solar-blind CCD10; visible light CCD and ultraviolet-solar-blind CCD transmit the image to the image processing system 4; the visible light image and the ultraviolet signal light are filtered and fused by the image processing system, and the image is displayed on the display screen 12 after the fusion by the image processor 4; the filter lens group is followed by the f...
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[0024] Embodiment 2:
[0025] A solar-blind ultraviolet imaging background light suppression optical method, the incident light is divided into a visible light imaging optical path and an ultraviolet imaging optical path after an all-reflection all-lens A is placed obliquely; wherein the visible light imaging optical path is sequentially set as: a visible light imaging objective lens and a visible light CCD; The ultraviolet imaging optical path is set as follows: all-reflection all-lens B, ultraviolet imaging objective lens, ultraviolet solar-blind CCD; visible light CCD, ultraviolet solar-blind CCD transmit the image to the image processing system; the incident light passes through the obliquely placed all-reflex all-lens A After the visible light is transmitted, the visible light imaging optical path is set on this transmission optical path, and the visible light is imaged on the visible light CCD after passing through the visible light imaging objective lens; the ultraviolet...
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