Handy image projection apparatus

Details Handy image projection apparatus Handy image projection apparatus

2011-08-02

2011-08-02

Ko, Tony (Department: 2878)

Optics: image projectors

Composite projected image

Plural projection paths with single light source

C353S111000, C353S042000

Reexamination Certificate

active

07988299

ABSTRACT:
A handy image projection apparatus includes a main body containing a projection optical unit configured to project an image from its front part, with the main body having a gravity center, and an operation member provided on an outer face of the main body. The operation member is operated by a user's hand holding the main body when the image is being projected. When the apparatus is viewed from a first direction facing the outer face, at least part of the operation member is disposed in a front-rear direction of the apparatus, at one of a first position corresponding to the gravity center of the main body and a second position located at a distance within ⅓ of a length from the gravity center to the front part of the main body in the front-rear direction.

REFERENCES:
patent: 4151583 (1979-04-01), Miller
patent: 4396262 (1983-08-01), Laizans et al.
patent: 4805175 (1989-02-01), Knowles
patent: 7058432 (2006-06-01), Nishimoto
patent: 7270421 (2007-09-01), Shinozaki
patent: 7284866 (2007-10-01), Buchmann
patent: 1444639 (2005-05-01), None
patent: 2003-043576 (2003-02-01), None

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