Solar simulator optical system

Abstract

The invention discloses a solar simulator optical system. The solar simulator optical system includes a xenon lamp, an ellipsoid surface condenser, a first plane reflecting mirror, an optical integrator, an optical filter, a second plane reflecting mirror, an off-axis parabolic reflecting mirror and a shell; the xenon lamp is located at the first focus of the ellipsoid surface condenser; the optical integrator is of a symmetric structure and is composed of two sets of element lens arrays, wherein the front set of lenses is an integrator field lens which is located at the second focus of the ellipsoid surface condenser, and the back set of lenses is an integrator projection lens which is located at the front focal plane of a collimating mirror; and the off-axis parabolic mirror is the system collimating mirror. According to the solar simulator optical system, two plane reflecting mirrors are adopted, so that an optical path can be effectively folded, and the size of the optical path can be compressed; the system is an off-axis reflecting collimating system, and therefore, the collimating angle of a light beam is larger, and radiation uniformity is high, and central obscuration of an outputted light beam can be avoided; and a framework built by the system is a 4-shaped mirror image, and with such as an optical path structure realized, the center height of an outgoing light beam can be flexibly adjusted according to design requirements.

Description

technical field [0001] The invention belongs to the field of lighting optics design, in particular to a solar simulator optical system. Background technique [0002] Solar simulation technology is a new subject that has been continuously developed with space technology and solar energy utilization technology. It is a technology that uses artificial light sources to simulate the characteristics of solar radiation. The solar simulator is the best embodiment of the development and application of solar simulation technology. The solar simulator is an important equipment for the ground simulation test and performance test and calibration of the solar sensor. The solar simulator can be used to simulate the space environment, simulate the solar radiation characteristics on the ground, and provide a uniform, collimated and stable light source with a certain irradiance that matches the solar spectrum. The development of solar simulation technology is closely related to the developm...

AI Technical Summary

Problems solved by technology

Under normal circumstances, for solar simulators that require a large beam exit aperture and a maximum irradiance of one solar constant, an off-axis system is often used. It is inevitable that the distance between the two focal points of the ellipsoidal condenser and the off-axis reflection The focal length of the mirror is very long, so the optical path to be built will be very long, and the size of the solar simulator is very large; and when using this kind of solar simulator to calibrate the instrument in the laboratory, there is usually a problem of high center of the instrument , it is often not easy to have both when designing the optical path

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