Optical: systems and elements – Having significant infrared or ultraviolet property – Having ultraviolet absorbing or shielding property
Patent
1998-08-07
2000-08-22
Schuberg, Darren E.
Optical: systems and elements
Having significant infrared or ultraviolet property
Having ultraviolet absorbing or shielding property
359358, 359359, 313112, 313635, 355 71, 362255, 362293, F21V 906
Patent
active
061081264
ABSTRACT:
An illuminating apparatus which comprises a light source, an optical system for condensing light emitted from the light source and illuminating an object with the condensed light, and an optical member which absorbs light having a wavelength from 260 to 340 nm among the light emitted from the light source, wherein the optical member is made of glass or crystalline material to which metal is doped.
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Hudson, R.D. et al, "Compilation of Atomic Ultraviolet Photoabsorption Cross Sections for Wavelengths Between 3000 and 10 Angstroms", Atomic Data 2, pp. 205, 235 and 253, 1971.
Hagiwara Shigeru
Hiraiwa Hiroyuki
Mori Takashi
Nikon Corporation
Schuberg Darren E.
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