Laser array, laser light source and laser projection device
First Claim
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1. A laser array comprising:
- a metal substrate;
a reflective protrusion fixedly connected to the metal substrate, wherein the reflective protrusion is configured to reflect light towards an opposite direction to the metal substrate;
at least one line of lasers, wherein the at least one line of lasers comprises at least two first lasers and a second laser, the second laser 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;
wherein the first laser beam and the second laser beam are both within wavelengths of a first color, and a first wavelength of the first laser beam is less than a second wavelength of the second laser beam; and
wherein each laser in the at least one line of lasers comprises a light-emitting chip, wherein each light-emitting chip is fixedly connected to the metal substrate and configured to emit light towards the reflective protrusion.
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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.
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Citations
17 Claims
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1. A laser array comprising:
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a metal substrate; a reflective protrusion fixedly connected to the metal substrate, wherein the reflective protrusion is configured to reflect light towards an opposite direction to the metal substrate; at least one line of lasers, wherein the at least one line of lasers comprises at least two first lasers and a second laser, the second laser 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; wherein the first laser beam and the second laser beam are both within wavelengths of a first color, and a first wavelength of the first laser beam is less than a second wavelength of the second laser beam; and wherein each laser in the at least one line of lasers comprises a light-emitting chip, wherein each light-emitting chip is fixedly connected to the metal substrate and configured to emit light towards the reflective protrusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A laser projection device, comprising:
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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 a metal substrate, a reflective protrusion and at least one line of lasers, wherein the reflective protrusion is fixedly connected to the metal substrate, and the reflective protrusion is configured to reflect light towards a direction opposite to the metal substrate; 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; 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; and wherein each laser in the at least one line of lasers comprises a light-emitting chip, and each light-emitting chip in the at least one line of lasers is fixedly connected to the metal substrate and configured to emit light towards the reflective protrusion; 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. - View Dependent Claims (15)
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16. A laser array comprising:
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a metal substrate; a metal strip fixed on the metal substrate; a line of lasers, wherein each laser of the line of lasers comprises a light-emitting chip; wherein the line of lasers comprises at least two first lasers and at least two second lasers, one of the at least two first lasers is positioned between two second lasers, and one of the at least two second lasers is positioned between two first lasers, wherein the at least two first lasers are configured to emit a first laser beam, and at least two second lasers 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 blue color, and wherein a first wavelength of the first laser beam is less than a second wavelength of the second laser beam; and 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. - View Dependent Claims (17)
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Specification