Overlapping pattern projector
First Claim
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1. An optoelectronic device, comprising:
- a semiconductor substrate;
an array of optical emitters, arranged on the substrate in a two-dimensional pattern;
a projection lens, which is mounted on the semiconductor substrate and is configured to collect and focus light emitted by the optical emitters so as to project optical beams containing a light pattern corresponding to the two-dimensional pattern of the optical emitters on the substrate; and
a diffractive optical element (DOE), which is mounted on the substrate and is configured to produce and project multiple overlapping replicas of the pattern.
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Abstract
An optoelectronic device includes a semiconductor substrate, an array of optical emitters arranged on the substrate in a two-dimensional pattern, a projection lens and a diffractive optical element (DOE). The projection lens is mounted on the semiconductor substrate and is configured to collect and focus light emitted by the optical emitters so as to project optical beams containing a light pattern corresponding to the two-dimensional pattern of the optical emitters on the substrate. The DOE is mounted on the substrate and is configured to produce and project multiple overlapping replicas of the pattern.
40 Citations
20 Claims
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1. An optoelectronic device, comprising:
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a semiconductor substrate; an array of optical emitters, arranged on the substrate in a two-dimensional pattern; a projection lens, which is mounted on the semiconductor substrate and is configured to collect and focus light emitted by the optical emitters so as to project optical beams containing a light pattern corresponding to the two-dimensional pattern of the optical emitters on the substrate; and a diffractive optical element (DOE), which is mounted on the substrate and is configured to produce and project multiple overlapping replicas of the pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for producing an optoelectronic device, the method comprising:
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providing a semiconductor substrate; forming an array of optical emitters on the substrate in a two-dimensional pattern; mounting a projection lens on the semiconductor substrate so as to collect and focus light emitted by the optical emitters, thereby projecting optical beams containing a light pattern corresponding to the two-dimensional pattern of the optical emitters on the substrate; and mounting a diffractive optical element (DOE) on the substrate so as to produce and project multiple overlapping replicas of the pattern. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification