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.

Inventor： Yazan Z. Alnahhas ,  Harish Govindarajan ,  Oyvind Svensen ,  Yuval Tsur ,  Zhengyu Miao

IPC: G03B21/20 ,  G03B21/16

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.

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.

Inventor： Yazan Z. Alnahhas ,  Oyvind Svensen ,  Weiping Li ,  Yuval Tsur

IPC: H01S5/042 ,  H01S5/42 ,  H01S5/183

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.

公开(公告)号：US20210026153A1

公开(公告)日：2021-01-28

申请号：US17067447

申请日：2020-10-09

Applicant: Apple Inc.

Inventor： Refael Della Pergola ,  Chandra Kakani ,  Roei Remez ,  Yuval Tsur

IPC: G02B27/28 ,  G02B5/04 ,  G02B3/00 ,  G02B27/00 ,  G02B5/18

Abstract: A compact folded projection system is described that includes a laser light source, a folded lens system comprising a lens stack including two or more refractive lenses and a light folding element (e.g., a prism), and a diffractive beam splitter that includes at least one diffractive surface. The light folding element provides a “folded” optical axis for the lens system to reduce the Z-height of the projection system, for example to within a range of 1.7 to 4 millimeters (e.g., 2 millimeters in some implementations). The laser light source emits light that is refracted by the lens stack to the folding element. The folding element redirects the light to the beam splitter which replicates the light into NxM duplications or tiles to thus generate a larger field of view (FOV) than the internal FOV of the lens system.