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A light-concentrating system with high light transmittance for beams with different opening angles

A concentrating system and high light transmittance technology, applied in the field of pure light concentrating applications, can solve the problems of affecting light transmittance, large aberration, etc., and achieve the effect of high light transmittance

Active Publication Date: 2020-01-31
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this is not advisable, because the actual optical imaging system has spherical aberration, off-axis aberration, chromatic aberration and other aberrations. When we want to get a large C, a / f should be as large as possible. In this case, the aberration will be so large that it seriously affects the light transmittance
Aberrations can seriously affect light transmission

Method used

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  • A light-concentrating system with high light transmittance for beams with different opening angles
  • A light-concentrating system with high light transmittance for beams with different opening angles
  • A light-concentrating system with high light transmittance for beams with different opening angles

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Embodiment Construction

[0021] The specific embodiment of the present invention will be described below in conjunction with the accompanying drawings.

[0022] Such as Figure 1-2 As shown, a high-transmittance concentrating system for beams with different opening angles is composed of a parabolic mirror I and a compound parabolic concentrator II. The parabolic mirror in the two-stage system is an imaging optical device. After it reflects the incident light and performs the first concentrating, it will form a spot with a certain size at the focal plane. A compound parabolic concentrator is placed at this spot. Such as figure 2 As shown, the straight line AC is parallel to the symmetry axis of the parabola BC, and the point D is the focus of the parabola BC. According to the characteristics of the parabola, all light rays parallel to the symmetry axis of the parabola BC will be reflected by the parabola BC and converge to its focal point D. In the same way, the rays parallel to the direction of BD...

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Abstract

The invention provides a high light transmittance condensation system aiming at different field angle light beams; different condensation characteristics of imaging optics and non-imaging optics are employed, and a paraboloid mirror and a composite paraboloid condenser are combined to obtain the high power condensation system with the high light transmittance. The system accurately couples the divergence angle of a reflected light beam and the focal plane light spot diameter of the paraboloid mirror with the maximum acceptance angle and the incidence plane diameter of the composite paraboloidcondenser, thus deriving relations between the incident light beam field angle and system parameters and the system condensation ratio, and obtaining the optimal condensation system with the maximum light transmittance. The system can provide conditions for high power condensation of light beams of different divergence angles in a pure condensation application experiment.

Description

technical field [0001] The present invention relates to the technical field of pure light concentrating applications, in particular to a high light transmittance light concentrating system for beams with different opening angles, which is a light gathering device with high light transmittance and high light concentration ratio for light beams with different opening angles. Background technique [0002] The most basic problem to be solved in light gathering is: given a beam of light with a certain maximum divergence angle, which is incident from an entrance aperture with a certain size, how to make them efficiently exit from an exit aperture as small as possible. In order to solve this problem, we naturally think of using a convex lens system, typically using imaging optics to solve the problem of light concentration. If the lens diameter is 2a, and the incident beam angle is 2θ, in the general imaging theory, Abbe's sine law hnsinU=h'n'sinU' gives the relationship between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B19/00G02B27/00
CPCG02B19/0023G02B27/0012
Inventor 黄媛马晓燠饶长辉
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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