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US 2022/0020573 A1Published application
Radio frequency screen for an ultraviolet lamp system
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorsSheng-chun YANG, Po-Wei LIANG, Chao-Hung WAN, Yi-Ming LIN, Liu Che KANG
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Abstract
A radio frequency (RF) screen for a microwave powered ultraviolet (UV) lamp system is disclosed. In one example, a disclosed RF screen includes: a sheet comprising a conductive material; and a frame around edges of the sheet. The conductive material defines a predetermined mesh pattern of individual openings across substantially an operative area of the screen. Each of the individual openings has a triangular shape.
Claims20
A radio frequency (RF) screen, comprising:
- a sheet comprising a conductive material;
- and
- a frame around edges of the sheet,
- wherein the conductive material defines a predetermined mesh pattern of individual openings across substantially an operative area of the screen,
- wherein each of the individual openings has a triangular shape.
2 more elements
A microwave powered ultraviolet (UV) lamp system, comprising:
- at least one magnetron configured to convert electrical power received from a power supply to radio frequency (RF) energy;
- a UV bulb configured to be excited by the RF energy to emit UV light;
- and
- an RF screen, wherein the RF screen comprises:
- a sheet comprising a conductive material,
- wherein the conductive material defines a predetermined mesh pattern of individual openings across,
- wherein at least one of the individual openings has a triangular shape.
4 more elements
A method, comprising:
- converting an input electrical power to radio frequency (RF) energy;
- exciting a ultraviolet (UV) bulb with the RF energy to emit a UV light;
- and
- screening the RF energy with an RF screen comprising a sheet having a predetermined mesh pattern of individual openings, wherein at least one of the individual openings has a triangular shape.
1 more element
Dependencies are inferred from the claim text.