Personal computer having condition indicator

Details Personal computer having condition indicator Personal computer having condition indicator

1990-06-22

1991-11-26

Oberley, Alvin E.

Communications: electrical

Visual indication

Movable

34081531, 340762, 340782, 362800, 364708, G08B 522, G06F 100

Patent

active

050686526

ABSTRACT:
An angular section used for condition indication has a first indication hole and a second indication hole. An indication element and a printed circuit board provided with a light-emitting diode are arranged inside the angular section. The indication element is made up of a light-transmission portion and an attachment portion. The light-transmission portion includes a first indication surface fitted in the first indication hole, a second indication surface fitted in the second indication hold, a slanted reflecting surface for reflecting incident light toward the second indication surface, and a light-incident surface extending between the lower end of the reflecting surface and the lower side of the attachment portion. Part of the light emitted from the light-emitting diode passes straight through the light-transmission portion, and emerges from the first indication surface, thus illuminating the first indication surface. The remaining light is reflected upward by the reflecting surface, and emerges from the second indication surface, thus illuminating the second indication surface.

REFERENCES:
patent: 4048634 (1977-09-01), Laflamme
patent: 4342908 (1982-08-01), Henningsen et al.
patent: 4571456 (1986-02-01), Paulsen et al.
patent: 4742478 (1988-05-01), Nigro, Jr. et al.

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