Lamp control device
US-2024166131-A1 · May 23, 2024 · US
LED illumination device and validation methodology of LED illumination device's lifespan
US8975818B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975818-B2 |
| Application number | US-201214130928-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2012 |
| Priority date | Jun 13, 2012 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A LED illumination device and validation methodology of LED illumination device's lifespan, comprises a controller, timing chip and low-voltage DC power supply, the controller is connected to the display terminal, the timing chip is positioned inside the LED illumination device, so as to get real-time recording of the operating time of the LED illumination device which is transmitted to the display terminal for display; meanwhile, a light sensor is placed in the luminous zone to obtain luminosity data so as to measure real-time luminous maintenance rate. When the measured luminous maintenance rate gets lower than the luminous maintenance rate predetermined for critical lifespan, the operating time recorded by the LED illumination device at this moment is the lifespan of this LED illumination device.
First claim
Opening claim text (preview).
What is claimed is: 1. An LED illumination device with time management function, characterizing in that a controller, timing chip and low-voltage DC power supply are installed inside the LED lamp, wherein the controller is connected directly or indirectly to the display terminal, a light sensor is also installed in the luminous zone of the LED illumination device, wherein the said light sensor is connected to the controller, and the controller obtains luminosity which is converted…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Mechanical Engineering · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8975818B2 cover?
- A LED illumination device and validation methodology of LED illumination device's lifespan, comprises a controller, timing chip and low-voltage DC power supply, the controller is connected to the display terminal, the timing chip is positioned inside the LED illumination device, so as to get real-time recording of the operating time of the LED illumination device which is transmitted to the dis…
- Who is the assignee on this patent?
- Chen Fang, Wan Yehua, Shen Jinxiang, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H05B45/58. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).