Optical projector arrangement

Details Optical projector arrangement Optical projector arrangement

H - Electricity

04

N

H04N 9/31 (2006.01) G02B 17/04 (2006.01) G02B 27/00 (2006.01) G02B 27/18 (2006.01) G02B 27/28 (2006.01) G02F 1/13 (2006.01) G03B 21/00 (2006.01) G03B 33/12 (2006.01)

Patent

CA 2142345

An optical projector arrangement comprises a light source (1) light from which is formed a collimated beam travelling along an axis (5) by optics (2, 4). The light is split into red, green and blue components travelling in different paths by a splitter (8), these being subsequently recombined by a synthesiser (30) to continue along the axis (5) to a projection lens (32). A respective liquid crystal modulator (22, 23, 25) is included in each different path. In order to increase the optical length of the path taken by the green component to be equal to the lengths of the paths (7, 9) taken by the red and blue components, a path length compensator (34) is included in the path for the green component, which path would otherwise be along the axis (5) for the whole of its length.

Un dispositif de projection optique comprend une source lumineuse (1), dont la lumière est constituée en un faisseau collimaté se déplaçant le long d'un axe (5) par l'intermédiaire d'instruments optiques (2, 4). La lumière est divisée en composante rouge, verte et bleue se déplaçant dans différents trajets au moyen d'un séparateur (8), lesdites composantes étant ensuite recombinées par un synthétiseur (30), afin de continuer leur déplacement le long de l'axe (5) vers une lentille de projection (32). Un modulateur respectif à cristaux liquides (22, 23, 25) est compris dans chaque trajet différent. Afin d'augmenter la longueur optique du trajet pris par la composante verte, de manière quelle soit égale aux longueurs des trajets (7, 9) pris par les composantes rouge et bleue, un compensateur de longueur de trajet (34) se trouve dans le trajet de la composante verte, lequel se trouverait sinon le long de l'axe (5) sur la totalité de sa longueur.

Affiliated with

Also associated with

Rating

Optical projector arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical projector arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical projector arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1953395