Optical display device

Details Optical display device Optical display device

1991-12-20

1993-09-28

Lazarus, Ira S.

Illumination

Revolving

362833, 362330, 362800, 362806, 362812, 362327, 40556, 40546, G09F 1300

Patent

active

052491048

ABSTRACT:
An optical display device such as an emblem mounted on an automotive vehicle is disclosed which is simple in structure and displays a display pattern in a silver metallic color by daylight. The interior of the device is kept invisible in the daytime, whereas the pattern is displayed in any desired color in a uniform manner in the nighttime.

REFERENCES:
patent: 3491245 (1970-01-01), Hardesty
patent: 4229783 (1980-10-01), Eberhardt
patent: 4321655 (1982-03-01), Bourrande
patent: 4903171 (1990-02-01), Livezay et al.
patent: 4965950 (1990-10-01), Yamada
patent: 4977695 (1990-12-01), Armbruster
patent: 5046826 (1991-09-01), Iwamoto et al.
patent: 5057974 (1991-10-01), Mizobe

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