Focusable light source structure

A light source and focal type technology, which is applied in the field of adjustable focus light source, can solve the problems of poor uniformity at the pupil and low irradiance value of the outgoing light, etc., so as to improve the uniformity of irradiance, increase optical efficiency, and ensure The effect of stability

Inactive Publication Date: 2011-07-13
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Problems solved by technology

[0005] The purpose of the present invention is to propose an adjustable focus light source, which can effectively improve the illuminance level of the outgoing light, expand the test area of ​​the module, ensure that the uniformity of the outgoing light meets the requir

Method used

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Example Embodiment

[0032] The adjustable focus light source of the present invention is suitable for application in equipment such as an online test system for concentrating photovoltaic modules, and it is mainly composed of two parts, namely, one part is an optical part and the other part is a mechanical transmission part.

[0033] Among them, the optical part includes a light source composed of a luminous body, etc., a condensing mechanism composed of a condenser lens, etc.; the mechanical transmission part includes two main components that can move relative to each other along the optical axis; through the optical part, especially the optical Part of the condensing mechanism is improved, and the light source and the condensing mechanism in the optical part are respectively combined with the two main components of the mechanical transmission part, thereby realizing the effective improvement and accuracy of the optical efficiency and the uniformity of the emitted light of the light source of the pre...

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Abstract

The invention relates to a focusable light source structure, which adopts a light guide pipe structure and comprises a luminous body and a condensing mechanism that are arranged on the same optical axis, wherein the distance between the luminous body and the condensing mechanism is continuously adjustable in the focal range at one side of the condensing mechanism. Particularly, the light source structure also comprises an inner sleeve and an outer sleeve which are arranged coaxially; the luminous body is arranged in the outer sleeve; one end of the inner sleeve is inserted into one end of the outer sleeve, and the other end of the inner sleeve is fixedly provided with the condensing mechanism; and the inner sleeve and the outer sleeve can slide relatively. In the focusable light source structure, the illuminance level of the emitted light can be effectively improved, the module test area is enlarged, the uniformity of the emitted light is guaranteed to meet the requirement, and the test accuracy and the optical efficiency are improved, so that the focusable light source structure can become an important structure form for large-area module measurement and simulation of the outer space environment measurement.

Description

technical field [0001] The invention relates to a light source structure, in particular to an adjustable focus light source used in an on-line test system for concentrated photovoltaic modules. Background technique [0002] At present, the commonly used CPV online detection system usually includes several parts such as projection light source, IV test system, power control system, and off-axis parabolic mirror. Among them, the light source part can choose several forms such as light pipe structure, integrating sphere structure, integrator structure, and Kohler lighting structure. The disadvantage of the light pipe structure is that the energy utilization rate is low, and the large amount of direct light emitted by the filament will reduce the illumination uniformity of the system; the light components emitted by the integrating sphere are single, all of which are direct light, but the optical efficiency is very low, so it is only suitable for small The optical efficiency of...

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Application Information

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IPC IPC(8): F21V14/02F21V8/00F21V7/22F21V17/10F21V19/00F21V29/00F21V29/503F21V29/60
Inventor 李望于志毅宋贺伦刘飞茹占强张耀辉
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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