Folding portable overhead projector

G - Physics – 03 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G03B 21/132 (2006.01) G03B 21/30 (2006.01)

Patent

CA 2190463

A folding overhead projector (10) having a stage body (12) housing a fresnel lens (16) on its top surface. The body is thicker on one side to form a lamp enclosure (14). A hinged mirror is provided within the body and a hinged lamp socket within the lamp enclosure. Two pairs of folding legs (24, 26) are hingedly coupled to the body and lamp enclosure and fold out to lower the mirror and lamp and form a collapsible base. The legs tilt the lamp and mirror so that light is reflected by the mirror up through the fresnel lens. Additional pairs of folding legs provide balance. A collapsible bellows (47), a light baffle (25), and the mirror provide a light and airtight enclosure for the lamp and mirror.

Un rétroprojecteur portable pliant (10) comprend un corps d'une platine (12) recevant une lentille de Fresnel (16) à sa surface supérieure. Ce corps est plus épais sur un de ses côtés car il forme une enceinte (14) de lampe. Un miroir articulé est disposé dansle corps et une douille de lampe articulée trouve place dans l'enceinte. Deux paires de montants pliants (24, 26) sont reliés par des charnières au corps et à l'enceinte de lampe et se déploient pour abaisser le miroir et la lampe et former une base pliante. Ces montants inclinent la lampe et le miroir de façon que la lumière soit reflétée vers le haut par le miroir au travers de la lentille de Fresnel. D'autres paires de montants pliants équilibrent l'appareil. Un soufflet repliable (47), une paroi opaque (25) et le miroir constituent une enceinte étanche à la lumière et à l'air destinée à la lampe.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Folding portable overhead projector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Folding portable overhead projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Folding portable overhead projector will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1689310

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.