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LED dental light source with variable chromaticity and corresponding method

A technology of LED components and light sources, which is applied to the illumination source of dental operating rooms and provides devices with variable chromaticity, which can solve the problems of white light quality reduction and other issues

Active Publication Date: 2020-07-21
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes undesired or objectionable color (e.g., off the black body curve) and / or reduction in white light quality

Method used

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  • LED dental light source with variable chromaticity and corresponding method
  • LED dental light source with variable chromaticity and corresponding method
  • LED dental light source with variable chromaticity and corresponding method

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Embodiment Construction

[0067] The following detailed description refers to the accompanying drawings, which show by way of illustration specific details and embodiments in which the invention may be practiced.

[0068] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs.

[0069] The words "spectrum", "emission spectrum" or "spectral distribution" are used herein to denote the distribution of wavelengths of light, typically visible light, where these terms are generally interchangeable.

[0070] figure 1 An exemplary embodiment of a variable chromaticity light source 100 comprising an array 110 of light emitting diode (LED) assemblies 120 , 130 is disclosed. The array 110 includes a plurality of first LED assemblies 120 positioned at intervals on a printed circuit board (PCB) 102 . The first LED assem...

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PUM

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Abstract

A dental light (100) having an array (110) of light emitting diode (LED) assemblies (120, 130), at least one first LED assembly (120) having at least one LED assembly configured to emit light according to a first spectral distribution A first LED element (122) configured to convert at least part of the converted phosphor (124) in the first spectral distribution. At least one filter (126) is secured within the converted light, the filter (126) being configured to block at least a portion of the converted light. The array (110) includes at least one second LED element (132) configured to emit light according to a second spectral distribution, wherein light having the filtered spectral distribution is selectively extracted from the array (110) in a first mode and emitting from the array (110) in a second mode according to both the filtered and the second spectral distribution.

Description

technical field [0001] Various embodiments generally relate to devices and methods for providing variable chromaticity. More particularly, various embodiments relate to illumination sources for use in dental operating rooms. Background technique [0002] Dentists use composite filling materials which cure under the influence of electromagnetic radiation in the wavelength range from approximately 380 nm to approximately 500 nm, in particular in the violet / blue wavelength range from 405 nm to approximately 460 nm. While blue light is required to initiate and drive the curing process of the filling material, blue light in the surgical environment can interfere with the application of the filling material because it can significantly shorten the working time of the material due to premature curing of the material. [0003] Some dental lights offer so-called "non-curing mode features" where blue light is excluded from the output of the non-curing mode. A second or normal illumi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/64H05B33/08A61B1/06A61C13/15F21W131/202F21Y115/10F21V9/40H05B44/00
CPCA61B1/0638A61B1/0646A61B1/0653A61B1/0684A61C19/003F21W2131/202H05B45/20F21K9/64F21Y2115/10F21Y2113/13
Inventor A.奥斯坦J.L.布维克
Owner OSRAM GMBH