Flame simulating light-emitting devices and related methods

A technology for emitting light and light-emitting elements, which is applied in lighting devices, independent lighting devices, electroluminescent light sources, etc., and can solve problems such as lighting difficulties and total flux fluctuations of large chandeliers

Active Publication Date: 2017-08-29
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is relatively difficult to use these types of LED fixtures for primary lighting such as a large chandelier because the overall effect of such LED fixtures can be manifested as fluctuations in the total flux as opposed to candle-like flickering

Method used

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  • Flame simulating light-emitting devices and related methods
  • Flame simulating light-emitting devices and related methods
  • Flame simulating light-emitting devices and related methods

Examples

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Embodiment Construction

[0044] Current LED systems that attempt to simulate candle flames often do not provide accurate flickering effects because they lack a sufficient degree of spatial and temporal variation. Applicants have recognized and noted that discrete groups of lighting elements are used with separate control signals for each of these groups in order to better simulate the flickering of a flame and to maintain (if desired) the overall lighting for the primary lighting. Flux, would be helpful.

[0045] In view of the foregoing, various embodiments and implementations of the present invention relate to flame-simulating lighting systems, methods, apparatus, and apparatus. Preferred embodiments include several methods and systems for simulating the natural flame behavior of traditional candles and torches in LED-based products for decorative indoor and outdoor lighting. Embodiments may control multiple LEDs individually or in groups, and may use a control algorithm that optimizes LED control ...

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PUM

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Abstract

Lighting systems, devices, methods and apparatus for simulating a candle flame are disclosed. The systems and methods can employ spatially distributed, disjointed sets of light-emitting elements that are independently controlled (526) with randomized control signals to simulate a candle flame by forming spatially and temporally varying lighting effects. Further, the disjointed sets can be controlled (526) such that the total light intensity is essentially maintained. In addition, systems and methods can employ a transition probability model (508) to adjust intensities of light-emitting elements in a way that accurately mimics a candle flame.

Description

technical field [0001] The present invention generally relates to light emitting devices. More specifically, various inventive methods, devices, and apparatus disclosed herein relate to the use of light emitting devices to produce a candle flame flickering effect. Background technique [0002] Digital lighting technology, ie lighting based on semiconductor light sources such as light emitting diodes (LEDs), offers a viable alternative to traditional fluorescent, HID and incandescent lamps. Functional advantages and benefits of LEDs include high energy conversion and optical efficiency, durability, lower operating costs, and many others. Recent advances in LED technology provide efficient and robust full-spectrum lighting sources that enable a wide variety of lighting effects in many applications. Some fixtures embodying these illumination sources have a lighting module that includes one or more LEDs capable of producing different colors (e.g., red, green, and blue) and a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S10/04H05B44/00
CPCF21S10/043H05B45/10H05B45/00H05B47/105Y02B20/40F21S10/04F21S10/02F21S6/001F21S10/005F21K9/61F21Y2115/10
Inventor J·P·M·安塞姆斯M·T·本内布洛克A·V·斯卡里亚R·A·W·克劳特D·塞库洛维斯基T·德克尔
Owner SIGNIFY HLDG BV
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