Sony patents lighting system that changes light color via phase modulation
Sony describes a lighting device that uses a phase modulation unit to shape light before a wavelength conversion unit changes its color. The system then uses lenses to guide this modified light to a projection lens, creating a specific image at a different wavelength than the original source.
In the filing’s own words
A lighting apparatus includes a light-emitting unit that emits light in a first wavelength band; a phase modulation unit that performs spatial light phase modulation on incident light from the light-emitting unit; a wavelength conversion unit that wavelength-converts incident light from the phase modulation unit, thereby emitting light in a second wavelength band different from the first wavelength band; and a lens optical system that guides emitted light from the wavelength conversion unit to a projection lens, in which the phase modulation unit generates a reproduction image that is formed in the wavelength conversion unit as a reproduction image of the first wavelength band, and the lens optical system forms a reproduction image of the second wavelength band in an optical path between the projection lens and the lens optical system on the basis of the emitted light from the wavelength conversion unit.
What exactly they claim (claim 1)
1. A lighting apparatus, comprising: a light-emitting unit that emits light in a first wavelength band; a phase modulation unit that performs spatial light phase modulation on incident light from the light-emitting unit; a wavelength conversion unit that wavelength-converts incident light from the phase modulation unit, thereby emitting light in a second wavelength band different from the first wavelength band; and a lens optical system that guides emitted light from the wavelength conversion unit to a projection lens, wherein the phase modulation unit generates a reproduction image that is formed in the wavelength conversion unit as a reproduction image of the first wavelength band, and the lens optical system forms a reproduction image of the second wavelength band in an optical path between the projection lens and the lens optical system on a basis of the emitted light from the wavelength conversion unit.
Facts
- Company
- Sony (SONY GROUP CORPORATION)
- Official title
- LIGHTING APPARATUS
- Publication number
- US20260267209A1
- Application number
- 19162666
- Filed
- Feb 15, 2024
- Published
- Sep 10, 2026
- Inventors
- 1
- Claims
- 13
Classified under
G03B 21/204 Physics & computingG02F 1/0121 Physics & computingG03B 21/2066 Physics & computingG03B 21/208 Physics & computingG02F 2203/50 Physics & computingMore from Sony in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.