Light attenuation device capable of continuously adjusting light intensity

A light attenuation and dimming technology, applied in optics, optical components, instruments, etc., can solve the problems of difficult processing, high quality and cost, and inability to process, and achieve the effect of wide adjustment range and uniform light intensity distribution

Active Publication Date: 2016-03-09
NANJING UNIV 5D TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, in order to meet the requirements of use, a large-diameter integrating sphere and an attenuation sheet with a high attenuation coefficient are required, which leads to high processing difficulty, high quality and high cost, and even cannot be processed at all with the existing actual technology

Method used

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  • Light attenuation device capable of continuously adjusting light intensity
  • Light attenuation device capable of continuously adjusting light intensity
  • Light attenuation device capable of continuously adjusting light intensity

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] Such as figure 1 As shown, a light attenuation device with continuously adjustable light intensity of the present invention includes a light source 1, two or more integrating spheres, wherein each integrating sphere contains a light inlet and a light outlet 9 for detecting The optical power meter 3 of the irradiance on the inner wall of the integrating sphere, a filter 2 is installed on the light entrance hole of the first integrating sphere 4 to filter out stray light, and the light entrance hole and the light exit hole of the remaining integrating spheres are equipped with The electronic iris 8 is used to adjust the light radiation flux entering and exiting the integrating sphere, so as to realize segmental and continuous adjustment of the exiting light intensity. Each integrating sphere is cascaded sequentially, the light exit hole of the previous integrating sph...

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Abstract

The invention discloses a light attenuation device capable of continuously adjusting the light intensity. The light attenuation device includes a light source, two or more than two integrating spheres; wherein each integrating sphere is provided with a light inlet hole and a light outlet hole, the integrating spheres are in sequential cascade connection,i.e., the light output hole of the previous integrating sphere is connected to the light inlet hole of the next integrating sphere, each connection position between the two integrating spheres which are in sequential cascade connection, is provided with an electronic changeable diaphragm which is used for adjusting the radiation flux of light entering the integrating spheres and light emitted from the integrating spheres. The light attenuation device capable of continuously adjusting the light intensity can achieve sectionally continuous attenuation and quantitative adjustment of the light intensity, the attenuated light intensity is uniformly distributed, and the adjustment range of the attenuation coefficient is wide; the light attenuation device capable of continuously adjusting the light intensity can be applied to a light attenuator capable of widely, continuously and quantitatively adjusting the light intensity, or can be applied to light detection sensitivity detection of a device or equipment, light source radiant quantity and color measurement, spectral characteristic analysis, and the like.

Description

technical field [0001] The invention relates to the technical fields of light intensity attenuation and optical measurement, in particular to an attenuation device capable of continuously adjusting light intensity. Background technique [0002] In the light path, the light attenuation sheet and dodging plate can realize light attenuation and dodging. The light attenuation sheet uses the absorption and reflection of light to attenuate the light intensity within a certain wavelength range. The light attenuation sheet has a certain attenuation coefficient, but it cannot be adjusted. If different intensities of light are required, multiple attenuation sheets with different attenuation coefficients need to be prepared and replaced as needed, which increases the complexity and cost of the operation. Existing light attenuation devices (such as the Chinese patent "solar-blind ultraviolet filter out-of-band cut-off depth test device" with application number 201310603534.9 use light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/02G02B5/00G02B27/09
CPCG02B5/005G02B26/02G02B27/0927
Inventor 赵菲菲李想朱曦李伟
Owner NANJING UNIV 5D TECH
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