Light source apparatus and projector
AssigneeSony Group Corporation
InventorTakashi Sudo
Life of this patent
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Abstract
A light source apparatus according to the present disclosure includes: a plurality of light sources; a plurality of collimator lenses that outputs, as parallel light, divergent light from each of the plurality of light sources; a diffuser plate that diffuses output light from each of the plurality of collimator lenses; a fly-eye lens having a plurality of lens cells, and in which the output light from each of the plurality of collimator lenses enters each of the plurality of lens cells through the diffuser plate; a fluorescence emission section having a phosphor face; and a condenser optical system that condenses output light from each of the plurality of lens cells of the fly-eye lens toward the phosphor face.
Claims7
A light source apparatus, comprising:
- a plurality of light sources;
- a plurality of collimator lenses configured to collectively output, as parallel light, divergent light from the plurality of light sources;
- a diffuser plate configured to diffuse first output light from each collimator lens of the plurality of collimator lenses;
- a fly-eye lens comprising a plurality of lens cells, wherein the diffused first output light corresponding to each collimator lens of the plurality of collimator lenses is incident on a corresponding lens cell of the plurality of lens cells;
- a fluorescence emitter comprising a phosphor face;
- and
- a condenser optical system configured to condense second output light from each lens cell of the plurality of lens cells of the fly-eye lens toward the phosphor face.
A projector, comprising:
- a light source apparatus configured to emit source light;
- an illumination optical system configured to generate illumination light based on the source light from the light source apparatus;
- a display panel configured to generate picture light based on the illumination light;
- and
- a projection optical system configured to project the picture light onto a projection face, wherein
- the light source apparatus includes:
- a plurality of light sources;
- a plurality of collimator lenses configured to collectively output, as parallel light, divergent light from the plurality of light sources;
- a diffuser plate configured to diffuse first output light from each collimator lens of the plurality of collimator lenses;
- a fly-eye lens comprising a plurality of lens cells, wherein the diffused first output light corresponding to each collimator lens of the plurality of collimator lenses is incident on a corresponding lens cell of the plurality of lens cells;
- a fluorescence emitter comprising a phosphor face;
- and
- a condenser optical system configured to condense second output light from each lens cell of the plurality of lens cells of the fly-eye lens toward the phosphor face.
A light source apparatus, comprising:
- a plurality of light sources;
- a plurality of collimator lenses configured to configured to collectively output, as parallel light, divergent light from the plurality of light sources;
- a diffuser plate configured to diffuse first output light from each collimator lens of the plurality of collimator lenses;
- a fly-eye lens comprising a plurality of lens cells, wherein
- the diffused first output light corresponding to each collimator lens of the plurality of collimator lenses is incident on a corresponding lens cell of the plurality of lens cells, and
- a diameter S of a light source image of at least one light source of the plurality of light sources in an output face of the fly-eye lens, and a pitch P of at least one lens cell of the plurality of lens cells in the output face of the fly-eye lens satisfy a conditional expression:
- 0.2<S/P<1;
- a fluorescence emitter comprising a phosphor face;
- and
- a condenser optical system configured to condense second output light from each lens cell of the plurality of lens cells of the fly-eye lens toward the phosphor face.
Dependencies are inferred from the claim text.