Patent Number: 6,637,896

Title: Compact projection system and associated device

Abstract: A compact real-image projection apparatus is used for a portable device(140). An optical projector (110) emits light that is capable of formingan image. A collapsible screen (120) has a collapsed surface area nolarger than substantially the surface area of a side of the portabledevice and an expanded surface area capable of receiving the light emittedfrom the optical projector (110). A retractable connecting member (150) iscoupled between the screen (120) and the optical projector (110) and hasat least a stowed position and an extended position. The extended positionis configured to hold the screen (120) and the optical projector (110)relative to one another such that the light emitted from the opticalprojector forms a real image on the screen.

Inventors: Li; Zili (Barrington, IL), Coleman; Zane (Atlanta, GA), Voloschenko; Dmitry (Schaumburg, IL)


International Classification: G03B 21/10 (20060101); G03B 21/30 (20060101); G03B 021/14 ()

Expiration Date: 10/22015