Lecture presentation system

Optics: image projectors – Projected image combined with real object

Reexamination Certificate

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Details

C359S443000, C353S098000

Reexamination Certificate

active

07494224

ABSTRACT:
A lecture presentation system includes a display screen and a projector for projecting an image onto the display screen. The display screen has image-receiving strip members linked to one another for receiving the image projected from the projector and an open space between each two adjacent strip members. Another lecture presentation system disclosed by the present invention includes a display screen for displaying an image. The display screen is formed of strip-like LCDs (liquid crystal displays) coupled to one another and respectively spaced from one another by an open space.

REFERENCES:
patent: 2132904 (1938-10-01), Martinez et al.
patent: 5080481 (1992-01-01), Martin et al.
patent: 5373333 (1994-12-01), Kawada et al.
patent: 5477282 (1995-12-01), Moore
patent: 5620245 (1997-04-01), Kobayashi et al.
patent: 6280039 (2001-08-01), Barber
patent: 2006/0250692 (2006-11-01), Peterson et al.

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