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US 2022/0018520 A1Published application
Film, illumination device, projector color wheel and method of manufacturing a film
AssigneeSony Group Corporation
InventorTonino GRECO
Life of this patent
Estimating the term…
Abstract
A film for changing a wavelength of light, including: a nano-porous membrane including a plurality of pores each having a first opening at a first surface of the nano-porous membrane and each extending in an extension direction towards a second surface of the nano-porous membrane opposite to the first surface of the nano-porous membrane, wherein the plurality of pores is arranged according to a predetermined pattern; a plurality of first quantum dots of a first quantum dot type, provided in the plurality of pores; and a plurality of second quantum dots of a second quantum dot type, provided in the plurality of pores.
Claims20
A film for changing a wavelength of light, comprising:
- a nano-porous membrane including a plurality of pores each having a first opening at a first surface of the nano-porous membrane and each extending in an extension direction towards a second surface of the nano-porous membrane opposite to the first surface of the nano-porous membrane, wherein the plurality of pores is arranged according to a predetermined pattern;
- a plurality of first quantum dots of a first quantum dot type, provided in the plurality of pores, the plurality of first quantum dots being configured to emit light according to a first emission profile with at least a first emission peak at a first emission wavelength when light of a predetermined wavelength incidents;
- a plurality of second quantum dots of a second quantum dot type, provided in the plurality of pores, the plurality of second quantum dots being configured to emit light according to a second emission profile with at least a second emission peak at a second emission wavelength when light of the predetermined wavelength incidents;
- and
- wherein the first emission wavelength is larger than the second emission wavelength.
2 more elements
An illumination device, comprising:
- a light source configured to emit light of at least a predetermined wavelength;
- and
- a film for changing a wavelength of light, provided on the light source, including:
- a nano-porous membrane including a plurality of pores each having a first opening at a first surface of the nano-porous membrane and each extending in an extension direction towards a second surface of the nano-porous membrane opposite to the first surface of the nano-porous membrane, wherein the plurality of pores is arranged according to a predetermined pattern;
- a plurality of first quantum dots of a first quantum dot type, provided in the plurality of pores, the plurality of first quantum dots being configured to emit light according to a first emission profile with at least a first emission peak at a first emission wavelength when light of the predetermined wavelength incidents;
- a plurality of second quantum dots of a second quantum dot type, provided in the plurality of pores, the plurality of second quantum dots being configured to emit light according to a second emission profile with at least a second emission peak at a second emission wavelength when light of the predetermined wavelength incidents;
- and
- wherein the first emission wavelength is larger than the second emission wavelength.
5 more elements
A projector color wheel, comprising:
- a substrate;
- a reflective film provided on the substrate;
- and
- a first film for changing a wavelength of light, provided on the reflective film, including:
- a nano-porous membrane including a plurality of pores each having a first opening at a first surface of the nano-porous membrane and each extending in an extension direction towards a second surface of the nano-porous membrane opposite to the first surface of the nano-porous membrane, wherein the plurality of pores is arranged according to a predetermined pattern;
- a plurality of first quantum dots of a first quantum dot type, provided in the plurality of pores, the plurality of first quantum dots being configured to emit light according to a first emission profile with at least a first emission peak at a first emission wavelength when light of a predetermined wavelength incidents;
- a plurality of second quantum dots of a second quantum dot type, provided in the plurality of pores, the plurality of second quantum dots being configured to emit light according to a second emission profile with at least a second emission peak at a second emission wavelength when light of the predetermined wavelength incidents;
- and
- wherein the first emission wavelength is larger than the second emission wavelength.
6 more elements
(canceled)
Dependencies are inferred from the claim text.