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US 2020/0287102 A1Published application
Phosphor mixture, conversion element and optoelectronic component
AssigneeOSRAM OLED GmbH
InventorsRalph Peter Bertram, David O'Brien, Rainer Butendeich
Life of this patent
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Abstract
An optoelectronic component may include a radiation-emitting semiconductor chip configured to emit electromagnetic radiation and a phosphor mixture. The excitation spectrum may have a peak wavelength ranging from 435 nm to 460 nm. The phosphor mixture may have three phosphors configured to emit electromagnetic radiation in different spectral ranges.
Claims19
An optoelectronic component comprising:
- a radiation-emitting semiconductor chip configured to emit electromagnetic radiation within an excitation spectrum;
- wherein the excitation spectrum has a peak wavelength ranging from 435 nm to 460 nm inclusive;
- and
- a phosphor mixture comprising:
- a first phosphor having an emission spectrum with an FWHM width ranging from 70 nanometers to 150 nanometers inclusive, and wherein the first phosphor is configured to emit electromagnetic radiation in the green spectral range;
- a second phosphor having an emission spectrum with an FWHM width ranging from 1 nanometer to 40 nanometers inclusive;
- and wherein the second phosphor is configured to emit omits electromagnetic radiation in the red spectral range;
- and
- a third phosphor having an emission spectrum with an FWHM width ranging from 25 nanometers to 100 nanometers inclusive;
- and wherein the third phosphor is configured to emit electromagnetic radiation in the orange-red spectral range.
7 more elements
An optoelectronic component comprising:
- a radiation-emitting semiconductor chip configured to emit electromagnetic radiation within an excitation spectrum;
- wherein the excitation spectrum has a peak wavelength ranging from 435 nm to 460 nm inclusive;
- and
- a phosphor mixture comprising:
- a first phosphor having an emission spectrum with an FWHM width ranging from 70 nanometers to 150 nanometers inclusive;
- and wherein the first phosphor is configured to emit electromagnetic radiation in the green spectral range;
- a second phosphor having an emission spectrum with an FWHM width ranging from 1 nanometer to 40 nanometers inclusive, and wherein the second phosphor is configured to emit electromagnetic radiation in the red spectral range;
- and
- a fourth phosphor comprising an emission spectrum with an FWHM width ranging from 1 nanometer to 60 nanometers inclusive;
- and wherein the fourth phosphor is configured to emit electromagnetic radiation in the cyan-colored spectral range.
7 more elements
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Dependencies are inferred from the claim text.