Granted Patent B1

US 12,723,721 · App. 19/265,034 · Granted Sep 1, 2026

Inventor: Wenjie Li (Guangzhou, CN)

F21K9/64F21V9/32F21V23/0464F21Y2113/00F21Y2115/10

Abstract

Claims (22)

1 . A cold light source light-emission apparatus, arranged at an outdoor light-emission device, the cold light source light-emission apparatus comprising:

a fluorescent component comprising a transparent body and a fluorescent layer, wherein an interior of the transparent body is a pre-formed accommodation cavity, the fluorescent layer is arranged inside the accommodation cavity, and an interior of the fluorescent layer is arranged with fluorescent powder; and

an LED module, wherein a light-emission direction of the LED module is set towards the fluorescent component;

wherein, when the LED module emits light towards the fluorescent component, the fluorescent powder absorbs the light for energy storage, and when the fluorescent powder absorbs sufficient light for energy storage, the fluorescent powder reaches an excited state and continuously and stably emits light; wherein the fluorescent powder is further configured to absorb natural light for energy storage, and the LED module is configured to emit light towards the fluorescent component to supplement energy storage of the fluorescent powder when the natural light is insufficient.

2 . The cold light source light-emission apparatus according to claim 1 , wherein the LED module comprises a plurality of LED chips comprising a UV chip.

3 . An outdoor light-emission device, comprising an outdoor device body and the cold light source light-emission apparatus according to claim 2 , wherein the cold light source light-emission apparatus is arranged at the outdoor device body.

4 . The outdoor light-emission device according to claim 3 , wherein the cold light source light-emission apparatus is arranged inside the outdoor device body, and the outdoor device body is arranged with a slot corresponding to the fluorescent component.

5 . The cold light source light-emission apparatus according to claim 1 , wherein a surface of the fluorescent layer is arranged with a plurality of protrusions, and cross-sectional widths of the plurality of protrusions decrease along a direction deviating from the fluorescent layer.

6 . The cold light source light-emission apparatus according to claim 5 , wherein a plurality of transparent protrusions are arranged between the transparent body and a bottom of the fluorescent layer, and the fluorescent powder is arranged between adjacent transparent protrusions.

7 . The cold light source light-emission apparatus according to claim 6 , wherein a filter is arranged between the LED module and the fluorescent component, and a bottom of the LED module is arranged with a base.

8 . The cold light source light-emission apparatus according to claim 1 , wherein the cold light source light-emission apparatus further comprises an optical sensor and a controller both electrically connected to each other, the optical sensor is arranged at the outdoor light-emission device, and the controller is electrically connected to the LED module;

wherein, when the optical sensor senses environment brightness and then sends a signal, the controller receives the signal to obtain data of the environment brightness;

when the environment brightness is lower than a second brightness range, the controller adjusts the LED module to intermittently emit light to store energy for the fluorescent component; and

when the environment brightness is within the second brightness range, the controller adjusts the LED module to turn off.

9 . A light-emission adjustment method adopting the cold light source light-emission apparatus according to claim 8 , the method comprising steps of:

collecting data of current environment brightness through the optical sensor, and sending the data to the controller for analysis and processing;

presetting a first brightness range, the second brightness range, and a limited brightness time period in the controller, wherein a highest value of the second brightness range is not higher than a highest value of the first brightness range;

when the environment brightness is lower than a lowest value of the first brightness range, using the controller to determine whether the environment brightness is within the second brightness range; and

when the environment brightness is lower than a lowest value of the second brightness range, using the controller to control the LED module to emit light intermittently based on a trigger signal from the optical sensor, so as to store energy for the fluorescent component.

10 . The light-emission adjustment method according to claim 9 , wherein the step of using the controller to determine whether the environment brightness is within the second brightness range further comprises steps of:

when the environment brightness is within the second brightness range, using the controller to start a timing module and continuously determine brightness during the limited brightness time period; and,

when the environment brightness remains within the second brightness range during the entire limited brightness time period, using the controller to receive a hold signal from the optical sensor and control the LED module to turn off.

Priority Claims (1)

References Cited (18)