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US 2015/0309399 A1Published application
Illumination apparatus and projection-type image display apparatus having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSung-tae KIM, Yong-Dok CHA
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Abstract
An illumination apparatus is provided, including a light source unit which includes at least one laser diode emitting light of a single color; a diffuser plate which disperses the light emitted from the light source unit; a fly-eye lens array which transmits light dispersed by the diffuser plate; and a fluorescent unit on which light transmitted by the fly-eye lens array is incident and which emits white light.
Claims11
An illumination apparatus comprising:
- a light source unit comprising at least one laser diode;
- a diffuser plate which disperses light emitted from the light source unit;
- a fly-eye lens which transmits light dispersed by the diffuser plate;
- and
- a fluorescent unit on which light transmitted through the fly-eye lens array is incident and which emits white light.
2 more elements
A projection-type image display apparatus comprising:
- an illumination apparatus configured to emit laser light;
- a prism unit configured to guide light from the illumination apparatus to an image forming unit;
- the image forming unit, configured to emit image light;
- and
- a projection unit configured to project the image light, emitted by the image forming unit, onto a screen,
- wherein the illumination apparatus comprises:
- a light source unit comprising at least one laser diode;
- a diffuser plate which disperses light emitted from the light source unit;
- a fly-eye lens array which transmits light dispersed by the diffuser plate;
- and
- a fluorescent unit on which light transmitted by the fly-eye lens array is incident and which emits white light;
- and
- a prism unit which guides light emitted by fluorescent unit toward an image forming unit, wherein the prism unit comprises,
- an image fly-eye lens array which transmits light, emitted by the fluorescent unit, toward the image forming unit, wherein light transmitted by the image fly-eye lens array has a cross-sectional shape which corresponds to a shape of the image forming unit;
- a first relay lens which transmits light transmitted by the image fly-eye lens array;
- a reflective mirror which reflects light transmitted through the first relay lens;
- a second relay lens which transmits light reflected by the reflective mirror;
- and
- a total reflection prism which totally internally reflects light, transmitted through the second relay lens, toward to the image forming unit,
- wherein light reflected by the image forming unit incident on and transmitted through the total reflection prism.
17 more elements
Dependencies are inferred from the claim text.