Advertising apparatus using a light switching device

Details Advertising apparatus using a light switching device Advertising apparatus using a light switching device

2006-02-14

2006-02-14

Quach-Lee, Y. My (Department: 2875)

Illumination

Light fiber, rod, or pipe

Illuminating or display apparatus

C362S812000, C040S448000

Reexamination Certificate

active

06997592

ABSTRACT:
Provided is an advertisement apparatus using a light switching device which transmits or shields light according as a power source or heat is supplied or not. The advertisement apparatus includes a light switching device transmitting light when a power source or heat is supplied thereto and shielding light of less than predetermined brightness when a power source or heat is not supplied thereto, or operating in a reverse manner, and an illuminator for illuminating an image onto the light switching device with light whose brightness is greater than the predetermined brightness. The light switching device can be used as the window of a building, and can present images of an advertisement using the illuminator for irradiating light from a projector, for example, to the light switching device. Therefore, the advertisement apparatus using a light switching device can be used for both indoor and outdoor advertising displays.

REFERENCES:
patent: 6005651 (1999-12-01), Takahara et al.
patent: 6101750 (2000-08-01), Blesener et al.
patent: 6237290 (2001-05-01), Tokimoto et al.
patent: 6314669 (2001-11-01), Tucker
patent: 6429914 (2002-08-01), Kubota et al.
patent: 6452650 (2002-09-01), Nakao et al.

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