Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1997-02-05
1998-09-15
Tokar, Michael J.
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
2504844, 25230134, 25230135, G01J 158, C09K 1104, G01N 2100
Patent
active
058083073
ABSTRACT:
A method of detecting an ultraviolet laser beam, which includes irradiating a detector with the ultraviolet laser beam to produce photoluminescence from the detector, and sensing the photoluminescence. The detector includes a specific polysilmethylene compound or a specific polysiloxane compound. A method of recording an information is also disclosed which includes exposing a photosensitive layer to an ultraviolet laser beam according to the information. The photosensitive layer includes a specific polysilmethylene compound or a specific polysiloxane compound. By irradiating the exposed photosensitive layer to a reference ultraviolet laser beam, the recorded information is read.
REFERENCES:
patent: 5658494 (1997-08-01), Bell et al.
Kushibiki Nobuo
Murakami Masashi
Nagai Hideaki
Nakata Yoshinori
Okutani Takeshi
Director--General of Agency of Industrial Science and Technology
Dow Corning Asia Ltd.
Hanig Richard
Tokar Michael J.
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