Illumination system with integrated heat dissipation device for use in display systems employing spatial light modulators
First Claim
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1. A light integrator for use in a display system employing a spatial light modulator, comprising:
- a plurality of walls each having a reflective surface, wherein the walls are bonded together to form a tunnel whose interior surfaces are the reflective surfaces;
a fastening mechanism comprising a bonding agent that bonds the plurality of walls together and has a melting temperature 150°
C. or higher, wherein the bonding agent is a metal solder or a glass frit; and
a heat dissipation mechanism directly attached to or integrated in at least one of the plurality of walls of the light integrator for reducing the temperature of the walls by dissipating the heat thereof.
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Abstract
Disclosed herein is an illumination system for use in display systems employing spatial light modulators. The illumination system comprises a fastening mechanism for securing the bonding of the walls of the light integrator of the illumination system. A heat dissipation mechanism can be alternatively provided for reducing the temperature of the illumination system by dissipating the heat thereof.
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Citations
29 Claims
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1. A light integrator for use in a display system employing a spatial light modulator, comprising:
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a plurality of walls each having a reflective surface, wherein the walls are bonded together to form a tunnel whose interior surfaces are the reflective surfaces; a fastening mechanism comprising a bonding agent that bonds the plurality of walls together and has a melting temperature 150°
C. or higher, wherein the bonding agent is a metal solder or a glass frit; anda heat dissipation mechanism directly attached to or integrated in at least one of the plurality of walls of the light integrator for reducing the temperature of the walls by dissipating the heat thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A light integrator comprising:
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a plurality of walls each having a reflective surface bonded together forming a tunnel with a substantially rectangular cross section, wherein the walls are connected to each other at end surfaces thereof with a bonding agent that is a metal solder or glass fit; and a heat dissipation mechanism directly attached to or integrated in at least one of the plurality of walls of the light integrator for reducing the temperature of the walls by dissipating the heat thereof. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A projection system comprising:
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a light source for providing a beam of light; a light pipe capable of changing a cross-section of the beam of light; a color wheel for providing light of different colors; a spatial light modulator upon which is incident the light of different colors; and projection optics for directing light onto a target, wherein the light pipe has four reflective walls bonded together with a substantially rectangular cross section, wherein the four walls are connected to each other at end surfaces thereof with a bonding agent that is a metal solder or glass frit, and wherein the light pipe has a heat dissipation mechanism directly attached to or integrated in at least one of the walls for reducing the temperature of the walls by dissipating the heat thereof. - View Dependent Claims (29)
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Specification