Portable projection device

Details Portable projection device Portable projection device

1991-05-07

1992-09-01

Lazarus, Ira S.

Illumination

Combined

362184, 362196, 362205, 362208, 362800, F21V 3300

Patent

active

051434423

ABSTRACT:
A portable projection device has a case-like body made of synthetic resin and formed hollow in which a lens, a circuit connected to a light emitting means, a power source and resistances, a display film and a film setting section are arranged and housed. The circuit is opened and closed by a switch arranged on the case-like body to thereby render the portable projection device operative and inoperative. The portable projection device can be used as a time-displaying timepiece, a flashlight, an alarm lamp, a guide lamp or the like.

REFERENCES:
patent: 2764058 (1956-09-01), Ellis
patent: 3401596 (1968-09-01), Hirsch
patent: 4386826 (1983-06-01), Stolov
patent: 4573766 (1986-03-01), Bournay, Jr. et al.
patent: 4756604 (1988-07-01), Nakatsuka et al.
patent: 4866580 (1989-09-01), Blackerby
patent: 4893903 (1990-01-01), Thakar et al.
patent: 4947291 (1990-08-01), McDermott

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