公开(公告)号：US20190369405A1

公开(公告)日：2019-12-05

申请号：US16399937

申请日：2019-04-30

Applicant: Apple Inc.

Inventor： Tong Chen ,  Wenrui Cai ,  Albert P. Heberle ,  Weiping Li

IPC: G02B27/09 ,  F21V5/00 ,  F21V5/04

Abstract: A light-emitting device includes a semiconductor substrate, a surface-emitting semiconductor light source on the semiconductor substrate, a monolithic first dielectric, and a second dielectric. The monolithic first dielectric is transparent to light emitted by the light source and includes first and second micro-lenses adjacent an aperture of the light source and having axes parallel to and offset from an axis of a beam of light emitted by the light source, and a saddle-shaped lens over the aperture of the light source. The saddle-shaped lens connects the first and second micro-lenses and reshapes the beam of light emitted by the light source to have a high aspect ratio. The second dielectric is transparent to light emitted by the light source and encapsulates a light emission surface of the saddle-shaped lens. The second dielectric has a higher refractive index than the monolithic first dielectric.

公开(公告)号：US10705347B2

公开(公告)日：2020-07-07

申请号：US16399937

申请日：2019-04-30

Applicant: Apple Inc.

Inventor： Tong Chen ,  Wenrui Cai ,  Albert P. Heberle ,  Weiping Li

IPC: G02B27/09 ,  F21V5/00 ,  F21V5/04 ,  F21Y115/30 ,  F21Y115/15

Abstract: A light-emitting device includes a semiconductor substrate, a surface-emitting semiconductor light source on the semiconductor substrate, a monolithic first dielectric, and a second dielectric. The monolithic first dielectric is transparent to light emitted by the light source and includes first and second micro-lenses adjacent an aperture of the light source and having axes parallel to and offset from an axis of a beam of light emitted by the light source, and a saddle-shaped lens over the aperture of the light source. The saddle-shaped lens connects the first and second micro-lenses and reshapes the beam of light emitted by the light source to have a high aspect ratio. The second dielectric is transparent to light emitted by the light source and encapsulates a light emission surface of the saddle-shaped lens. The second dielectric has a higher refractive index than the monolithic first dielectric.