LASER-OUTPUT MEASURING PIECE

PURPOSE:To measure an output easily by forming a measuring piece applying the color members having the different light reflectances applying laser light to then, and observing the disapperance of the colors. CONSTITUTION:Colors are applied to a base member 21 characterized by less absorption of lase...

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Bibliographic Details
Main Author TANAKA KUNITADA
Format Patent
LanguageEnglish
Published 30.08.1991
Subjects
BASIC ELECTRIC ELEMENTS
COLORIMETRY
DEVICES USING STIMULATED EMISSION
ELECTRICITY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:PURPOSE:To measure an output easily by forming a measuring piece applying the color members having the different light reflectances applying laser light to then, and observing the disapperance of the colors. CONSTITUTION:Colors are applied to a base member 21 characterized by less absorption of laser light in the sequence of the spectroscopic reflectances of laser, and a test chart 22 is formed. For example, in the case of ruby laser, the reflectance become large in the order of black, green, blue, brown, red and yellow. Therefore, the regions are divided into this orders, and the colors are applied. The laser light is sequentially projected on the color regions from a ruby-laser treating device to be measured. When the output density of the laser light is about 40 joules/cm , the colors from black to red disappear and become white. The red slightly disappears and becomes white slightly. When the output density becomes weaker than about 40 joules/cm , the red is not changed, and the brown color is blurred. When the output density becomes stronger than about 40 joules/cm , the red becomes perfect white. In this way, the output density can be decided based on which color becomes white.
Bibliography:Application Number: JP19890340951