IP Library › Granted Patent US 10,571,105
Granted Patent B2
US 10,571,105 · App. 16/293,670 · Granted Feb 25, 2020

Light-emitting apparatus

Inventor: Hsu-Wen Fu (Kaohsiung, TW)
Assignee: Guangzhou Tyrafos Semiconductor Technologies Co., LTD
F21V23/001F21V5/002F21V23/003F21V23/02
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Quick Facts
Patent No.
US 10,571,105
App. No.
16/293,670
Granted
Feb 25, 2020
Kind
B2
Abstract

A light-emitting apparatus including a light source, a light-diverging element, a conductive structure, and a drive control module is provided. The light source is used to emit a light beam. The light-diverging element is disposed on a transmission path of the light beam, wherein after the light beam passes through the light-diverging element, a plurality of light beams separated from each other are produced. The conductive structure is disposed on a first surface of the light-diverging element. The drive control module is used to drive the light source and is electrically connected to the light source and the conductive structure.

Claims (21)

1. A light-emitting apparatus, comprising:

a light source, used to emit a light beam;

a light-diverging element, disposed on a transmission path of the light beam, wherein after the light beam passes through the light-diverging element, a plurality of light beams separated from each other are produced;

a conductive structure, disposed on a first surface of the light-diverging element; and

a driver, used to drive the light source and electrically connected to the light source and the conductive structure,

wherein the driver comprises:

a power supply, used to provide a power to the light source, wherein a series circuit is formed between the conductive structure, the light source, and the power supply; and

a controller, electrically connected to the power supply.

2. The light-emitting apparatus of claim 1 , wherein the driver further comprises:

a sensor, electrically connected to the conductive structure and used to sense a current flowing through the conductive structure;

a power supply, used to provide a power to the light source; and

a controller, electrically connected to the sensor and the power supply, wherein the controller is adapted to turn off the power supply when the current sensed by the sensor is less than a safe current.

3. The light-emitting apparatus of claim 1 , wherein the conductive structure is in a form of a sheet.

4. The light-emitting apparatus of claim 3 , wherein the light-diverging element has a plurality of optical microstructures, and the plurality of optical microstructures are disposed on a second surface opposite to the first surface.

5. The light-emitting apparatus of claim 1 , wherein the conductive structure is in a form of a mesh.

6. The light-emitting apparatus of claim 5 , wherein the conductive structure comprises a plurality of conductive dots and a plurality of conductive wires, and the plurality of conductive wires connect the plurality of conductive dots to each other in series.

7. The light-emitting apparatus of claim 5 , wherein the light-diverging element has a plurality of optical microstructures, and the plurality of optical microstructures are disposed on the first surface and are separated from the conductive structure.

8. The light-emitting apparatus of claim 5 , wherein the light-diverging element has a plurality of optical microstructures, and the plurality of optical microstructures are disposed on a second surface opposite to the first surface.

9. The light-emitting apparatus of claim 8 , wherein an orthographic projection of the conductive structure on the second surface of the light-diverging element is separated from the plurality of optical microstructures.

10. The light-emitting apparatus of claim 8 , wherein an orthographic projection of the conductive structure on the second surface of the light-diverging element overlaps the plurality of optical microstructures.

11. The light-emitting apparatus of claim 1 , wherein the light-diverging element comprises a diffractive optical element or a lens array.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2019
From: TYRAFOS TECHNOLOGIES CO., LIMITED
To: GUANGZHOU TYRAFOS SEMICONDUCTOR TECHNOLOGIES CO., LTD
Reel/Frame 050422/0385 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2019
From: FU, HSU-WEN
To: TYRAFOS TECHNOLOGIES CO., LIMITED
Reel/Frame 048579/0759 →
Priority Claims (1)
TW 107123380 A · Jul 5, 2018 · national
Continuity (1)
Related Publication 20200011514A1 · Jan 9, 2020