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58.4: A Handheld Mini‐Projector Using LED Light Sources
Author(s) -
Willemsen O. H.,
Krijn M. P. C. M.,
Salters B. A.
Publication year - 2005
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2036345
Subject(s) - projector , computer science , liquid crystal display , mobile device , lumen (anatomy) , computer graphics (images) , computer hardware , materials science , computer vision , operating system , medicine , surgery
We have built a mini‐projector with LED light sources that is sufficiently small for portable applications. The projector has a three panel architecture with transmissive LCD micro‐displays in order to combine a high lumen output with a low cost price. The volume of the light engine is 110 cc. The projector can deliver up to 15 lumen to the screen at a LED power of 9 W. In the high efficiency mode the output is 8.5 lumen at 3.8 W.