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Lighting device for generating white light

A lighting device, white light technology, applied in the direction of lighting devices, lighting device components, lighting and heating equipment, etc., can solve the problems of not allowing low-cost manufacturing and complicated technology

Active Publication Date: 2021-03-05
TRIDONIC JENNERSDORF GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Methods as previously disclosed are technically complex and typically require active modulation of the light output prior to manufacture of the luminaire or even throughout the lifetime of the luminaire.
This requires considerable energy input and does not allow low-cost manufacturing

Method used

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  • Lighting device for generating white light
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  • Lighting device for generating white light

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Experimental program
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no. 1 approach

[0025] According to a first embodiment, the object underlying the invention is achieved by a lighting device (1) for generating white light having at least one light strip consisting of three light-emitting diodes (LEDs) arranged in a line (2), in the lighting device (1) of the present invention:

[0026] a) each LED strip (2) preferably has two outer LEDs (3) and one central LED (4);

[0027] b) Preferably each of said outer LEDs (3) and said central LED (4) are phosphor converted white LEDs.

[0028] In addition, each of the color coordinates of the two outer LEDs is less distant from the color coordinates of the mixed light of the two outer LEDs and the central LED than the color coordinates of the central LED are from the color coordinates of the two outer LEDs and the central LED. The distance from the color coordinates of the mixed light of the central LED.

[0029]In the context of the invention, the lighting device (1) has at least one LED strip (2), wherein the LED ...

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Abstract

The invention relates to a lighting device (1) for generating white light, the lighting device having at least one light strip (2) consisting of three light-emitting diodes (LEDs) arranged in a line, wherein: a) each LED light The strip (2) has two outer LEDs (3) and one central LED (4); b) each of the two outer LEDs (3) and the central LED (4) are phosphor converted and c) the distance from each of the color coordinates of the two outer LEDs to the color coordinates of the mixed light of the two outer LEDs and the central LED is less than the color coordinates of the central LED The distance to the color coordinates of the mixed light of the two outer LEDs.

Description

technical field [0001] The invention relates to a lighting device for generating white light. Background technique [0002] White-emitting phosphor-converted diodes (LEDs), as obtained during manufacturing, typically offer color temperatures and color coordinates that vary not only from batch to batch, but also from LED to LED . This in turn requires such LEDs to be graded with regard to color temperature and color coordinates after their manufacture, before they are used in lighting fixtures. Such binning generally enables a technician to properly select LEDs with similar or identical binning to ensure uniform white light emission with specified color temperature and color coordinates. [0003] The binning of LEDs is generally carried out using a binning method, according to which the chromaticity and especially the color coordinates and color temperature of one or more production batches of LEDs are determined and then binned according to a predetermined binning system. ...

Claims

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Application Information

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IPC IPC(8): H05B45/20F21K9/20F21Y115/10H05B44/00
CPCF21K9/00F21S4/00F21Y2101/00H05B45/40H05B45/20H05B45/00F21Y2103/10F21Y2115/10F21Y2113/13F21K9/64F21V5/04F21S4/20F21K9/62F21V7/0091H01L27/153H01L33/502
Inventor J·多波斯
Owner TRIDONIC JENNERSDORF GMBH
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