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US 2019/0094673 A1Published application
Laser array, laser light soure and laser projection device
AssigneesQingdao Hisense Laser Display Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
InventorsYouliang Tian, Changming Jia
Life of this patent
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Abstract
A laser array including at least one line of lasers. The at least one line of lasers includes a first laser and a second laser which are adjacent to each other. A first laser beam emitted by the first laser and a second laser beam emitted by the second laser are both in a first color, and the first laser beam has a wavelength less than that of the second laser beam.
Claims22
A laser array comprising:
- at least one line of lasers, the at least one line of lasers comprising at least two first lasers and a second laser, wherein the second laser is positioned between two of the at least two first lasers;
- wherein the at least two first lasers are configured to emit a first laser beam, and the second laser are configured to emit a second laser beam;
- and
- wherein the first laser beam and the second laser beam are both within wavelengths of a first color, and wherein a first wavelength of the first laser beam is less than a second wavelength of the second laser beam.
1 more element
14-19. (canceled)
A laser projection device, comprising:
- a laser light source;
- an imaging element configured to receive a laser beam emitted by the laser light source and generate a projection beam according to a received video signal;
- a projection lens configured to project the projection beam onto a display surface to display an image;
- wherein, the laser light source comprises:
- a laser array comprising at least one line of lasers, wherein the at least one line of lasers comprises at least two first lasers and a second laser, wherein the second laser is positioned between the two first lasers;
- wherein the at least two first lasers are configured to emit a first laser beam, and the second laser are configured to emit a second laser beam;
- and
- wherein the first laser beam and the second laser beam are both within wavelengths of a first color, and wherein a first wavelength of the first laser beam is less a second wavelength of the second laser beam;
- at least one collimating lens set configured to collimate laser beams emitted from the laser array into collimated laser beams;
- and
- at least one converging lens set configured to converge the collimated laser beams.
8 more elements
A laser array comprising:
- at least one line of lasers, wherein the at least one line of lasers comprises at least a first lasers and a second laser, the first laser is positioned adjacent to the second laser;
- a first laser beam emitted by the first laser and a second laser beam emitted by the second laser are both in a first color, and a first wavelength of the first laser beam is less than a second wavelength of the second laser beam;
- each laser in the at least one line of lasers comprises a light-emitting chip;
- a metal substrate;
- and
- at least one metal strip fixed on the metal substrate, wherein
- light-emitting chips are fixedly connected to the at least one metal strip, and the light-emitting chips are configured to emit light in a direction away from the metal substrate.
4 more elements
A laser array comprising:
- a line of lasers, wherein each laser of the line of lasers comprises a light-emitting chip;
- a metal substrate;
- and
- a metal strip fixed on the metal substrate, wherein, the light-emitting chip is fixedly connected to the metal strip, and the light-emitting chips are configured to emit light in a direction away from the metal substrate.
1 more element
Dependencies are inferred from the claim text.