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
19 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, 16)
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17. 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; 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 (18, 19)
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Specification