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US 9,851,629 B2Granted
Projector
AssigneeLG Innotek Co., Ltd.
InventorsEunsung Seo, Seungman Jeong, Hyunho Choi, Sanghun Lee
Life of this patent
Estimating the term…
Abstract
Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit.
Claims15
A projector, the projector comprising:
- a light source;
- an illumination unit comprising first and second collimation lenses advancing in parallel light emitted from the light source in a predetermined direction, wherein light emitted from the light source transmits through the collimation lenses;
- and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit;
- wherein the illumination unit includes an FEL (Fly Eye Lens), where the FEL includes micro lenses formed at an incidence surface for collecting the incident light on a light emitting surface, and micro lenses formed at a light emitting surface for advancing the collected light upwards from the optical axis;
- and
- wherein a center of the light source is upwardly positioned from the optical axis of the collimation lenses;
- and
- wherein the illumination unit includes an optical guide block receiving the light emitted from the light source to generate an optical shape that is same as that of the display device, and the collimation lenses are formed with an optical axis deviated from that of the optical guide block.
5 more elements
A projector, the projector comprising:
- a light source;
- an illumination unit comprising first and second collimation lenses advancing in parallel light emitted from the light source in a predetermined direction, wherein light emitted from the light source transmits through the collimation lenses;
- and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit;
- wherein the illumination unit includes an optical part equally emitting the light from the collimation lenses to the display device, and at least one illumination lens that is tilted from the optical axis of the light source, the collimation lenses, and the optical part;
- and
- wherein the illumination unit includes an optical guide block receiving the light emitted from the light source to generate an optical shape that is same as that of the display device, and the collimation lenses are formed with an optical axis deviated from that of the optical guide block.
3 more elements
A projector, the projector comprising:
- a light source;
- an illumination unit comprising first and second collimation lenses advancing in parallel light emitted from the light source in a predetermined direction, wherein light emitted from the light source transmits through the collimation lenses;
- and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit;
- wherein the illumination unit includes an FEL (Fly Eye Lens) equally emitting the light of the collimation lenses to the display device, and a prism upwardly eccentrically emitting the light through the FEL to illuminate the display device;
- and
- wherein the illumination unite includes an optical guide block receiving the light emitted from the light source to generate an optical shape that is the same as that of the display device, and the collimation lenses are formed with an optical axis deviated from that of the optical guide block.
3 more elements
A projector, the projector comprising:
- a light source;
- an illumination unit comprising first and second collecting lenses collecting light emitted from the light source in a predetermined direction wherein light emitted from the light source transmits through the collecting lenses, and an optical guide block receiving the light emitted from the light source to generate an optical shape that is same as that of the display device, at least one collecting lens being formed with an optical axis deviated from that of the optical guide block;
- and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit;
- wherein the first and second collecting lenses collecting the light emitted from the light source to the optical guide block are interposed between the light source and the optical guide block.
1 more element
A projector, the projector comprising:
- collimation lenses advancing in parallel to a predetermined direction light emitted from a light source;
- an FEL (Fly Eye Lens) equally emitting the light of the collimation lenses to a display device;
- a prism upwardly and eccentrically illuminating the light through the FEL, formed with a first side and a second side that are not perpendicular to an optical axis of the FEL, a third side and a fourth side that are connected to the first and second sides, wherein the third side is connected to the first side or to the second side at an acute angle, and the fourth side is connected to the first side or to the second side at an obtuse angle;
- a display device enabling to realize an image by receiving the light emitted from the prism, and whose center is positioned at an axis different from the optical axis;
- and
- an optical guide block receiving the light emitted from the light source to generate an optical shape that is same as that the display device, wherein the collimation lenses are formed with an optical axis deviated from that of the optical guide block.
3 more elements
Dependencies are inferred from the claim text.