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US 11,892,570 B2Granted
Optical assembly that generates distinctive irradiance pattern of light
AssigneeAdvanced Semiconductor Engineering, Inc.
InventorHsin-Ying Ho
Life of this patent
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Abstract
An optical assembly includes a light-emitting device, a partition structure and a cover. The partition structure defines a first space for accommodating the light-emitting device. The cover is disposed over the partition structure. The cover has a first surface facing the partition structure and a second surface opposite to the first surface. A light emitted by the light-emitting device forms a first irradiance pattern projected on the second surface of the cover, and the first irradiance pattern includes a first dark zone traversing the first irradiance pattern.
Claims19
An optical assembly, comprising:
- a light-emitting device and a photodetector;
- a partition structure defining a first space for accommodating the light-emitting device and a second space for accommodating the photodetector;
- and
- a cover disposed over the partition structure, the cover having a first surface facing the partition structure and a second surface opposite to the first surface;
- wherein a first light emitted by the light-emitting device forms a first irradiance pattern projected on the second surface of the cover, the cover has a recess recessed from the first surface of the cover, and the recess has an interface configured to direct a second light emitted by the light-emitting device so that the second light is transmitted to an outside beyond the photodetector after the second light is reflected by the second surface of the cover.
2 more elements
Dependencies are inferred from the claim text.