Photocatalytic glass pane equipped with light source for activat

Details Photocatalytic glass pane equipped with light source for activat Photocatalytic glass pane equipped with light source for activat

1998-10-22

2000-04-25

Epps, Georgia

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359507, 359512, 359350, 52172, G02F 103, E06B 712

Patent

active

060550856

ABSTRACT:
The invention relates to a photocatalytic glass pane including (a) a glass substrate having (1) major surfaces that are substantially parallel with and opposed to each other and (2) an edge surface that connects the major surfaces together; (b) a photocatalytic film formed on at least one of the major surfaces of the glass substrate; and (c) a light source for exciting the photocatalytic film. A light from the light source enters the glass substrate from its edge surface and then is reflected totally within the glass pane. Another photocatalytic glass pane of the invention is substantially the same as the above, except that the light enters the glass substrate from its peripheral surface. It is optional to form a prism on the peripheral surface. Alternatively, the peripheral surface may be inclined such that the glass substrate is tapered at a position of the peripheral surface. With this, the light is totally reflected within the another glass pane, too. Thus, the photocatalytic glass panes of the invention are capable of substantially preventing light rays from escaping from the major surfaces thereof. With this, the photocatalytic film can effectively be excited or activated to oxidatively decompose organic contaminants thereon.

REFERENCES:
patent: 5854708 (1998-12-01), Komatsu et al.
patent: 5873203 (1999-02-01), Thiel
patent: 5935717 (1999-08-01), Oishi et al.
patent: 5939194 (1999-08-01), Hashimoto et al.
Patent Abstracts of Japan, vol. 98, No. 1, Jan. 30, 1998 (Abstract of JP 09-255366).

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