Compact low-cost portable slide presentation toy
AssigneeLup Shun Metal & Plastic Ware Factory Limited
InventorTsz-Ming Lou
Life of this patent
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Abstract
A low-cost compact slide presentation toy offering combined slide projector and viewer function by integrating a slide projector section and a slide viewer section with a single housing. Both sections share a common slide recieving slot so that simulataneous viewing and projecting is made possible by means of a novel rotatable slide member which carries a plurality of image cells in a diametrically opposite manner. Also, images to be viewed or projected can be changed by simply rotating a slide member without the need of actually removing a slide from the device. This device is particular attractive for young children.
Claims9
A compact slide presentation toy comprising a slide viewer section and a slide projector section wherein:
- said slide viewer section comprises
- a first slide slot adapted to receive a slide member,
- a background light source on one side of said slide slot,
- an elongate chamber on the other side of said first slide slot, wherein said elongate chamber has an opaque enclosure and has first and second ends through which light from said background light source enters from said first end and leaves at the said second end, and
- an eye-piece adjacent to said elongate chamber, said eye-piece being adapted to accommodate a user's eye and keep out stray light from interfering with the light originating from said light source;
- said slide projector comprises
- a second slide slot adapted to receive a slide member,
- a concentrated light source on one side of said slide slot,
- an elongate chamber on the other side of said second slide slot, wherein said elongate chamber has an opaque enclosure and has first and second ends through which light from said concentrated light source enters from said first end and leaves at the said second end, and
- said elongate chamber comprises an inverting means for inverting an optical image as it travels through said chamber from said first end to said second end;
- and
- said first and second slide slots are communicable with each other and have a common slot plane which is adapted to receive a slide member on which a plurality of image cells are distributed.
Dependencies are inferred from the claim text.