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US 2021/0063852 A1Published application
Projection device and temperature control method thereof
AssigneeCoretronic Corporation
InventorsJia-Hong Dai, Kun-Chieh Chan
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AssigneeCoretronic Corporation
InventorsJia-Hong Dai, Kun-Chieh Chan
Estimating the term…
A projection device includes a housing, a light source module, a light valve, a projection lens, and a temperature control element. The light source module is disposed in the housing and adapted to provide an illumination beam. The light valve is disposed on a transmission path of the illumination beam and configured to convert the illumination beam into an image beam. The projection lens is disposed on a transmission path of the image beam and includes a lens barrel having a curved surface. The temperature control element is disposed on the projection lens and is adapted to cool or heat the projection lens. The shape of the temperature control surface matches the curved surface of the lens barrel, and the temperature control surface is configured to be connected to the curved surface of the lens barrel. The disclosure may further provide a temperature control method of a projection device.
A projection device comprising a housing, a light source module, a light valve, a projection lens, and a temperature control element, wherein
A temperature control method of a projection device, wherein the projection device comprises a projection lens, a temperature control element, and a temperature sensing element, wherein the projection lens comprises a lens barrel having a curved surface, the temperature control element has a temperature control surface, the shape of the temperature control surface matches the curved surface of the lens barrel, and the temperature control surface is configured to be connected to the curved surface of the lens barrel, and wherein the temperature control method comprises:
Dependencies are inferred from the claim text.