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US 10,474,019 B2Granted
Phosphor disc, phosphor wheel, light source device, projection display apparatus, and manufacturing method of phosphor disc
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakashi Ikeda, Masafumi Tanaka
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Abstract
The phosphor disc disclosed here includes the following structural elements: a disc-shaped metal plate; a phosphor layer disposed circumferentially on the metal plate; and a bonding layer for bonding the phosphor layer to the metal plate. The metal plate curves convexly toward the phosphor layer.
Claims13
A fluorescent light emitter comprising:
- a substrate including a reflection surface for reflecting light;
- a bonding layer disposed on the reflection surface and including silicone resin;
- and
- a phosphor layer disposed on the bonding layer, wherein
- the substrate is curved toward a side of the reflection surface.
2 more elements
A light source device comprising:
- a phosphor wheel device including a fluorescent light emitter and a motor, the fluorescent light emitter including a substrate having a reflection surface for reflecting light and a phosphor layer disposed on the reflection surface, wherein the motor is mounted to the substrate for rotating the fluorescent light emitter;
- an excitation light source configured to prompt the phosphor layer to emit fluorescent light;
- and
- an optical system configured to guide outgoing light from the excitation light source to the phosphor layer,
- wherein the substrate is curved toward a last element of the optical system.
2 more elements
Dependencies are inferred from the claim text.