Back to results
US 2006/0132727 A1Published application
Projection lens unit and thin projector using the same
AssigneeLG Electronics Inc.
InventorsNam Kim, Seung Lee, Han Cho, Ki Bok, Jun Lee, Soon Kwon
Life of this patent
Estimating the term…
Abstract
A projection lens unit and a thin projector using the same are disclosed. The projection lens unit includes a plurality of lens sets for emitting light carrying an image, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and adapted to change a direction of light incident on the reflector.
Claims36
A projection lens unit comprising:
- a plurality of lens sets for emitting light carrying an image;
- and
- a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and adapted to change a direction of light incident on the reflector.
A projection lens unit comprising:
- a master lens set adapted to emit light carrying a produced image;
- a reflector arranged downstream from the master lens set, and adapted to change a direction of the light emitted from the master lens set;
- a compensation lens set adapted to compensate light reflected from the reflector;
- a zoom lens set adapted to adjust a focal length of light emitted from the compensation lens set;
- and
- a focus adjusting lens set adapted to adjust a focus of light emitted from the zoom lens set, and to externally emit the focus-adjusted light.
3 more elements
A projection lens unit comprising:
- a master lens set adapted to emit light carrying a produced image;
- a compensation lens set adapted to compensate the light emitted from the master lens set;
- a reflector arranged downstream from the compensation lens set, and adapted to change a direction of light emitted from the compensation lens set;
- a zoom lens set adapted to adjust a focal length of light reflected from the reflector;
- and
- a focus adjusting lens set adapted to adjust a focus of light emitted from the zoom lens set, and to externally emit the focus-adjusted light.
3 more elements
A projection lens unit comprising:
- a master lens set adapted to emit light carrying a produced image;
- a compensation lens set adapted to compensate the light emitted from the master lens set;
- a zoom lens set adapted to adjust a focal length of light emitted from the compensation lens set;
- a reflector arranged downstream from the zoom lens set, and adapted to change a direction of light emitted from the zoom lens set;
- a focus adjusting lens set adapted to adjust a focus of light reflected from the reflector, and to externally emit the focus-adjusted light.
2 more elements
A projection lens unit comprising:
- a master lens set adapted to emit light carrying a produced image;
- a compensation lens set adapted to compensate the light emitted from the master lens set;
- a first zoom lens set adapted to primarily adjust a focal length of light emitted from the compensation lens set;
- a reflector arranged downstream from the first zoom lens set, and adapted to change a direction of light emitted from the first zoom lens set;
- a second zoom lens set adapted to secondarily adjust a focal length of light reflected from the reflector;
- and
- a focus adjusting lens set adapted to adjust a focus of light emitted from the second zoon lens set, and to externally emit the focus-adjusted light.
4 more elements
A projection lens unit comprising:
- a master lens set adapted to emit light carrying a produced image;
- a compensation lens set adapted to compensate the light emitted from the master lens set;
- a zoom lens set adapted to adjust a focal length of light emitted from the compensation lens set;
- a focus adjusting lens set adapted to adjust a focus of light emitted from the zoom lens set;
- and
- a reflector arranged downstream from the focus lens set, and adapted to change a direction of light emitted from the focus adjusting lens set, and to externally emit the focus-adjusted light.
3 more elements
A thin projector comprising:
- a housing having a panel shape including a front side, a rear side, a top side, and opposite lateral sides;
- an illumination unit arranged in the interior of the housing, the illumination unit generating light and emitting the generated light;
- a micro device arranged in the interior of the housing, the micro device receiving the light from the illumination unit and producing an image using the received light;
- a projection lens unit arranged in the interior of the housing, the projection lens unit including a plurality of lens sets for emitting the image produced by the micro device, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and adapted to change a direction of light incident on the reflector, one of the lens units and reflector being arranged to be externally exposed through the front side of the housing;
- and
- fixing means adapted to fix the housing such that the housing is arranged in an upright state.
3 more elements
Dependencies are inferred from the claim text.