Projection of patterned and flood illumination

    公开(公告)号:US20210364902A1

    公开(公告)日:2021-11-25

    申请号:US17223047

    申请日:2021-04-06

    Applicant: Apple Inc.

    Abstract: An optoelectronic apparatus includes a heat sink, which is shaped to define a base, a first platform at a first elevation above the base, and a second platform alongside the first platform at a second elevation above the base, which is different from the first elevation. A first monolithic emitter array is mounted on the first platform and is configured to emit first optical beams. A second monolithic emitter array is mounted on the second platform and is configured to emit second optical beams. An optical element is configured to direct both the first and the second optical beams toward a target region.

    Emitter array with uniform brightness

    公开(公告)号:US20210313764A1

    公开(公告)日:2021-10-07

    申请号:US17221856

    申请日:2021-04-05

    Applicant: Apple Inc.

    Abstract: An optoelectronic device includes a semiconductor substrate and an array of emitters disposed on the substrate, including at least first emitters disposed in a central zone of the array and second emitters disposed in at least one peripheral zone of the array, surrounding the central zone. The array includes at least one cathode and at least one anode disposed on opposing sides of the emitters. The first emitters have a first resistance between the at least one cathode and the at least one anode, and the second emitters have a second resistance, greater than the first resistance, between the at least one cathode and the at least one anode. A drive circuit is coupled to apply a selected voltage between the at least one cathode and the at least one anode so as to cause the emitters to emit optical radiation.

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