A light transmitting and dispersing filter having low...

F - Mech Eng,Light,Heat,Weapons – 21 – V

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F21V 9/04 (2006.01) G02B 3/00 (2006.01) G02B 5/02 (2006.01) G02B 5/08 (2006.01) G02B 5/128 (2006.01) G02B 5/22 (2006.01) G02B 5/30 (2006.01) G02B 27/00 (2006.01) G03B 21/56 (2006.01) G03B 21/60 (2006.01) G03B 21/62 (2006.01)

Patent

CA 2318912

Single-layer and multi-layer light filters (110) each having an array of light transmissive beads (14) provide substantially independent and simultaneously optimized control of optical properties such as gain, contrast, transmittance, dispersion, and ambient light rejection using additional light dispersive layers. Such light filters can include light transmissive layers (117) defining a lens curved over a plurality of beads for effecting greater dispersion of image light horizontally or vertically, and conformal layers defining a lens curved over individual beads for increasing an effective radius of curvatures of such beads. Light filters of the present invention are beneficially used as rear projection screens and light diffusers, and are ideal for use in or with flat-panel displays and the like.

Des filtres de lumière à une seule couche ou multicouche (110) ayant chacun une rangée de perles perméables à la lumière (14) permettent de réaliser, sensiblement indépendamment et simultanément, un contrôle optimisé des propriétés optiques telles que gain, contraste, transmittance, dispersion et atténuation lumineuse ambiante, en utilisant des couches dispersives de lumière supplémentaires. De tels filtres de lumière peuvent comprendre des couches perméables à la lumière (117) définissant une lentille incurvée sur une pluralité de billes en vue de réaliser une plus grande dispersion de la lumière image horizontalement ou verticalement, les couches conformes définissant une lentille incurvée au-dessus des perles individuelles en vue d'accroître le rayon de courbure effectif de ces perles. Les filtres de lumière selon l'invention sont utilisés avantageusement comme écrans de projection postérieurs et diffuseurs de lumière et constituent une solution idéale pour l'utilisation dans/ ou avec des afficheurs à panneau plat et analogues.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A light transmitting and dispersing filter having low... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A light transmitting and dispersing filter having low..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A light transmitting and dispersing filter having low... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1676507

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.