Optical projector device
First Claim
1. An optical projector device comprising:
- a printed circuit board;
a light source mounted on the printed circuit board and configured to emit laser beam; and
an optical module mounted on the printed circuit board and surrounding the light source;
wherein the optical module comprises a lens holder, a collimating optical element being received in the lens holder, and a diffractive optical element disposed at one side of the collimating optical element away from the light source;
wherein the lens holder comprises an outer lens holder and an inner lens holder located inside the outer lens holder, and the diffractive optical element received in the inner lens holder.
2 Assignments
0 Petitions
Accused Products
Abstract
A optical projector device less vulnerable to deformation of projected light by generated heat includes a printed circuit board, a light source, and an optical module. The heat-generating light source emits a laser beam, the optical module being mounted on the printed circuit board and surrounding the light source. The optical module comprises a lens holder, a collimating optical element received in the lens holder, and a diffractive optical element away from the light source. The lens holder comprises an outer lens holder and an inner lens holder fixed in the outer lens holder, and the diffractive optical element is received in the inner lens holder, this arrangement enables the dissipation of any heat-expansion force away from these elements.
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Citations
15 Claims
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1. An optical projector device comprising:
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a printed circuit board; a light source mounted on the printed circuit board and configured to emit laser beam; and an optical module mounted on the printed circuit board and surrounding the light source;
wherein the optical module comprises a lens holder, a collimating optical element being received in the lens holder, and a diffractive optical element disposed at one side of the collimating optical element away from the light source;
wherein the lens holder comprises an outer lens holder and an inner lens holder located inside the outer lens holder, and the diffractive optical element received in the inner lens holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification