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US 11,637,225 B2Granted
Converter with glass layers
AssigneeLumileds LLC
InventorsGrigoriy Basin, Mooi Guan Ng, Lex Alan Kosowsky, Phillip Barton
Life of this patent
Estimating the term…
Abstract
A wavelength converting layer may have a glass or a silicon porous support structure. The wavelength converting layer may also have a cured portion of wavelength converting particles and a binder filling the porous glass or silicon support structure.
Claims20
A wavelength converting layer comprising:
- a porous support structure including a stack of multiple discrete quartz or glass mesh layers bonded together, all fibers or strings of each mesh layer being confined to only that layer;
- and
- a cured mixture including wavelength converting particles and a binder, the cured mixture filling the porous support structure within and between the multiple mesh layers and bonding together the stack of multiple mesh layers.
A light emitting device comprising:
- a wavelength converting layer, and
- a semiconductor active layer,
- the wavelength converting layer comprising a porous support structure including (i) a stack of multiple discrete quartz or glass mesh layers bonded together, all fibers or strings of each mesh layer being confined to only that layer, and (ii) a cured mixture including wavelength converting particles and a binder, the cured mixture filling the porous support structure within and between the multiple mesh layers and bonding together the stack of multiple mesh layers,
- the wavelength converting layer being positioned and arranged to absorb first light emitted from the active layer at a first wavelength, and to emit second light at a second wavelength different from the first wavelength.
1 more element
A method comprising:
- filling a porous support structure with a mixture that includes wavelength converting particles and an uncured binder, the porous support structure including a stack of multiple discrete quartz or glass mesh layers, all fibers or strings of each mesh layer being confined to only that layer, the mixture filling the porous support structure within and between the stacked mesh layers, and
- curing the mixture filling the porous support structure so as to bond together the stack of multiple mesh layers and form a wavelength converting layer.
Dependencies are inferred from the claim text.