Light source for projection display

Details Light source for projection display Light source for projection display

G - Physics

02

B

G02B 27/18 (2006.01) G02B 27/28 (2006.01) H04N 5/74 (2006.01) H04N 9/31 (2006.01)

Patent

CA 2228873

A compact and energy efficient projection display can be made by starting with relatively pure red, green, and blue light sources. The output beams of thecolored light sources are received by at least one spatial light modulator. The modulated output beams are collimated and combined. A projection lens receives the collimated and combined output beams and directs them towards a projection screen. All of the above may be contained in a housing to provide a compact and lightweight projection display.

Affichage par projecteur compact et à faible consommation d'énergie pouvant être obtenu à partir de sources de lumière relativement pures : rouge, verte et bleue. Les faisceaux de sortie de ces sources de lumière de couleur sont reçus par au moins un modulateur spatial de lumière. Les faisceaux de lumière de sortie, collimatés et combinés, passent par une lentille de projection qui les dirige vers un écran de projection. Tous ces composants peuvent être contenus dans un logement permettant d'obtenir un affichage par projecteur de manière compacte et légère.

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