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Manual light source transmission testing method

A technology of artificial light source and measurement method, applied in the direction of testing optical performance, etc., can solve the problem of no breakthrough in technology

Inactive Publication Date: 2012-07-04
SHENZHEN UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main reason is that there is no breakthrough in how to measure atmospheric aerosol particles in a natural suspension state

Method used

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  • Manual light source transmission testing method
  • Manual light source transmission testing method
  • Manual light source transmission testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] figure 1 It is a schematic diagram of the illuminance calculation of the current point light source,

[0062]

[0063] where the formula is

[0064] E is the illuminance of the point light source on the target surface;

[0065] I is the light intensity of the point light source in the target direction;

[0066]r is the distance between the point light source and the target;

[0067] is the angle between the line from the point light source to the target and the normal of the target surface.

[0068] A basic assumption of the above formula is that the space between the light source and the target is clean, so the attenuation of light energy during propagation is negligible. But this basic assumption is inconsistent with actual conditions in many cases. Fog and haze are forms of aerosols in the atmosphere (see Appendix 2). Due to the absorption of light by aerosol particles, the light is greatly attenuated in the atmosphere, resulting in the weakening of the tr...

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Abstract

The invention provides a manual light source transmission testing method, which is characterized by testing transmission index of a manual light source, and adopting typical parameter combination method to test according to test models. Defined manual light source transmission index relative to the field of lighting design can serve as index of a new light source. The manual light source transmission testing method provides reference for designers to access light source performance and choose appropriate light sources. As to the field of light source manufacture, tested transmission index can be applied to development of high-transmission special light sources, and guide experiment data for improving and developing manual light sources are provided.

Description

technical field [0001] The patent of the invention relates to a method for measuring the transmission index of an artificial light source, in particular to the field of lighting design. Background technique [0002] The research on light absorption properties and measurement methods is currently mainly concentrated in the two disciplines of optical (laser) engineering and meteorology. Optical engineering research focuses on the absorption of monochromatic light (such as laser) and long-wave light (invisible light) by atmospheric aerosols; meteorology mainly studies the absorption and scattering of natural light (sunlight) by atmospheric aerosols. [0003] In the field of lighting, what is of practical significance is the transmission properties of artificial light sources (composite light sources) in atmospheric aerosols. However, the above research is only for monochromatic light or natural light sources, and has no direct guiding significance for artificial light sources,...

Claims

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Application Information

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IPC IPC(8): G01M11/02
Inventor 赵海天衡涛邝志斌胡姗姗王少健
Owner SHENZHEN UNIV
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