Laser ceilometer optical system and light-splitting reflector thereof

Abstract

The invention discloses a laser ceilometer optical system and a light-splitting reflector thereof. The light-splitting reflector comprises a reflector body. The reflector body comprises a light-permeable area at the center place and a light-reflecting area beyond the light-permeable area. The reflector body has an upper surface and a lower surface, wherein the light-permeable areas of the upper and lower surfaces are respectively plated with an antireflection film; the light-reflecting area of the upper surface is plated with a full-reflection film; and the light-reflecting area of the lower surface is plated with a deglossing paint. The light-splitting reflector in the laser ceilometer optical system can realize a light-splitting function by plating different films at different areas of the two surfaces respectively, and can enable emission light to pass effectively and reception light to be reflected effectively, thereby not only guaranteeing the majority of laser to be transmitted to the lens and the minority of laser to be reflected to an energy detection device, and meanwhile, enabling reception signals to be reflected to a receiver, but also improving light utilization rate, and reducing interference of stray light; the laser ceilometer optical system and the light-splitting reflector thereof are simple in structure, convenient to install and debug, and good in performance, and have very high practical value and profound economic significance.

Description

technical field [0001] The invention relates to an optical system of a laser cloud measuring instrument and a spectroscopic reflector thereof. Background technique [0002] The laser cloud meter is based on the principle of laser ranging. The transmitter emits laser pulses into the atmosphere, and the receiver receives the backscattering signals of the clouds and the atmosphere. After inversion calculations, the cloud layer is judged and the height of the cloud base is calculated. Laser cloud measuring instrument can accurately measure cloud base height, penetration thickness, etc. [0003] The rationality of the optical system design of the laser ceilometer directly determines the measurement capability and performance of the ceilometer, and it is one of the core components of the ceilometer. In the single optical path optical system of the laser cloud meter, the spectroscopic reflector is located between the emitter and the lens. The center of the spectroscopic reflector ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a spectroscopic reflector to solve the problems of stray light interference or complex structure and high installation accuracy when using the existing laser nephelograph spectroscopic reflector, and to provide a spectroscopic reflector using the spectroscopic reflector The optical system of the laser cloud meter

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