Planetarium and point light source for the use in same

Details Planetarium and point light source for the use in same Planetarium and point light source for the use in same

G - Physics

03

B

G03B 21/00 (2006.01) G09B 23/00 (2006.01) G09B 27/00 (2006.01) G09B 27/04 (2006.01) G09F 13/18 (2006.01)

Patent

CA 2492963

Featured is a portable planetarium device suitable for use in projecting clear bright images of stars, planets, and other celestial objects onto a curved viewing surface. The portable planetarium devices of the invention comprise a point light source generator (56), a light dispersing lens assembly (110), and an opaque enclosure (120) having transparent domains surrounding the light dispersing lens assembly. Also featured is a portable point light source comprising a light source (56) , a light collection element (58) and a light conducting conduit (80) suitable for use in providing high intensity light with a small cross-sectional area.

L'invention a trait à un dispositif de planétarium portatif, destiné à projeter des images précises et lumineuses d'étoiles, de planètes et d'autres objets célestes, sur une surface de visualisation incurvée. Les dispositifs de planétarium portatifs selon l'invention comprennent des générateurs de sources de lumière ponctuelle, un ensemble lentille disperseur de lumière, et une enceinte opaque possédant des domaines transparents environnant l'ensemble lentille disperseur de lumière. L'invention concerne aussi une source de lumière ponctuelle portative comprenant une source lumineuse, un élément de collecte de lumière et un conduit conducteur de lumière, qui sert à fournir une lumière de haute intensité avec une zone transversale de faible taille.

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