Optics: image projectors – Color filter
Patent
1997-03-27
1998-11-03
Dowling, William
Optics: image projectors
Color filter
353 38, G03B 2114
Patent
active
058298568
ABSTRACT:
The radiation beam emitted by a polychromatic source of finite dimension is initially corrected in its vergency and distribution by a reflector or a system which operates according to refraction, diffraction or total inner reflection effects. The beam then strikes on an array of micro-lenses of square or rectangular shape of arbitrary cross-section which have the function to converge and divide the beam into a plurality of partial beams which may have different directions, towards a matrix of colored micro-filters or images.
REFERENCES:
patent: 3597069 (1971-08-01), Heinoneu, Jr.
patent: 4294524 (1981-10-01), Stolov
patent: 4924356 (1990-05-01), French et al.
patent: 5285298 (1994-02-01), Kaneko et al.
patent: 5623349 (1997-04-01), Clarke
Perlo Piero
Repetto Piermario
Sinesi Sabino
C.R.F. Societa Consortile per Azioni
Dowling William
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