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Measuring device and measuring method thereof

A technology for measuring and measuring objects, which is applied in the field of measuring devices for light field distribution, can solve problems such as high price, and achieve the effects of fast measurement, convenient measurement and low cost

Inactive Publication Date: 2013-04-24
NAT CENT UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although its measurement speed is fast and the measurement time is short, the price is quite expensive because it requires a coating with perfect Lambertian characteristics.

Method used

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  • Measuring device and measuring method thereof
  • Measuring device and measuring method thereof
  • Measuring device and measuring method thereof

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Embodiment Construction

[0084] A measuring device and its measuring method according to preferred embodiments of the present invention will be described below with reference to related drawings, wherein the same components will be described with the same reference numerals.

[0085] Please refer to figure 1 As shown, it is a schematic diagram of a measuring device 1 according to the first embodiment of the present invention. The measuring device 1 of the present invention measures an object under test, and includes at least one screen 11 , a carrier 12 for the object under test, at least one measuring unit 13 and at least one holding unit 14 . Here, a screen 11 , a measuring unit 13 and a holding unit 14 are taken as an example. It should be noted that the object under test can be, for example, a light source or an optical film. Wherein, the light source may be, for example, a light emitting diode (LED), an organic light emitting diode (OLED), a cold cathode fluorescent lamp (CCFL), or a hot cathod...

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Abstract

A measuring device can be used for measuring an object under measurement. The measuring device comprises at least one screen, at least one measuring unit and at least one maintaining unit, wherein the screen is partly transparent and is provided with a first surface and a second surface which is opposite to the first surface, the object under measurement is placed in the circumference of the first surface of the screen, and the measuring unit is arranged correspondingly to the object under measurement and is arranged in the circumference of the second surface of the screen. The maintaining unit keeps relative distances among the screen, the object under measurement and the measuring unit unchanged, and the measuring unit captures images on the second surface of the screen to calculate optical field distribution of the object under measurement. The measuring device is capable of quickly measuring the optical field distribution of the object under measurement and has the advantages of low in cost and high in accuracy.

Description

technical field [0001] The present invention relates to a measuring device and its measuring method, in particular to a measuring device and its measuring method of light field distribution. Background technique [0002] In recent years, with continuous improvements in manufacturing processes and materials, various light sources, such as Light Emitting Diodes (LEDs), have been continuously developed. Due to the manufacturing process, each light source or a light source product has its own unique light intensity distribution, and optical designers need the light field distribution to carry out precise design and optical simulation, and then meet the product specifications. Therefore, it is necessary to measure the light field distribution of various light sources and their products. [0003] The light field distribution of the light source is generally measured directly in the far-field method, and the measurement distance is generally recommended to be greater than 10 times...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/00G01J1/04
Inventor 孙庆成余业纬陈彦霖陈玮鑫
Owner NAT CENT UNIV
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