Light source with only two major light emitting bands
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMasanori Shimizu, Yasuhiko Yamanaka, Syouetsu Sakamoto, Tetsuji Takeuchi
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Abstract
A light source for categorical color perception has major light emitting bands in ranges from 530 to 580 and from 600 to 650, with correlated color temperature of the lamp light color in a range from 1700 to 6500 and with DUV (distance from perfect radiator locus on UV coordinates) in a range from 0 to 70, and allows categorical perception of at least red, green, blue, yellow and white of surface colors of an illuminated object.
Claims17
A method for illuminating an object that allows categorical color perception of at least red, green, blue, yellow and white on the surface of the illuminated object, the method comprising:
- illuminating the object with light consisting essentially of the combination of light of two major wavelength bands;
- in which:
- the first wavelength band is from 530 to 580 nm;
- and
- the second wavelength band is from 600 to 650 nm.
Dependencies are inferred from the claim text.