Invention Grant
- Patent Title: β-SiAlON wavelength converters and methods of making the same
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Application No.: US15661183Application Date: 2017-07-27
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Publication No.: US10941078B2Publication Date: 2021-03-09
- Inventor: Zhengbo Yu , Madis Raukas , Yi Zheng
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE Regensburg
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE Regensburg
- Agency: Slater Matsil, LLP
- Main IPC: C04B35/599
- IPC: C04B35/599 ; C09K11/08 ; C04B35/597 ; C09K11/77 ; F21V9/30

Abstract:
Methods for producing wavelength converters are described. The methods include sintering a mixture consisting essentially of first particles and second particles to form a sintered article. In embodiments the first particles consist essentially of particles of β-SiAlON or precursors thereof, and the second particles consist essentially one or more sintering aids or precursors thereof. In embodiments the sintered article has a density that is greater than or equal to about 90% of a theoretical bulk density of the mixture, and is configured to convert primary light incident thereon to secondary light, wherein the secondary light exhibits a peak with a full width half maximum of greater than 0 to about 60 nanometers (nm) within a wavelength range of about 495 nm to about 600 nm.
Public/Granted literature
- US20190031567A1 Beta-SiAlON Wavelength Converters and Methods of Making the Same Public/Granted day:2019-01-31
Information query
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