# US 2018/0024424 A1 · Color wheel with color correction and heat dissipation structures > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024424 A1 - Document ID: US20180024424A1 - Status: Published application - Kind: A1 - Application number: 15/548,979 - Filed: 2016-01-28 - Published: 2018-01-25 - Earliest claimed: 2015-02-09 - Assignees: Appotronics China Corporation - Applicants: Appotronics China Corporation - Inventors: Fei HU; Jiayi YANG - Web page: https://patentgrep.com/patent/US20180024424A1 ## CPC - F21V 9/40: with provision for controlling spectral properties, e.g. colour, or intensity - F21V 9/08: for producing coloured light, e.g. monochromatic; for reducing intensity of light (with provision for controlling the colour F21V9/40) - F21V 9/45: by adjustment of photoluminescent elements - F21V 14/08: by movement of the screens {or filters} - F21V 29/502: characterised by the adaptation for cooling of specific components - F21V 29/60: characterised by the use of a forced flow of gas, e.g. air - F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks - G03B 21/16: Cooling; Preventing overheating - G03B 21/204: {using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197)} - G03B 33/08: Sequential recording or projection (G03B33/02, G03B33/04, G03B33/06 take precedence) - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract Disclosed is a heat dissipation and color correction type color wheel, comprising a fluorescent wheel (1), a color correction wheel (2), a rotation shaft (3) and a metal piece (4). The metal piece (4) is fixed on the rotation shaft (3), and the fluorescent wheel (1) and the color correction wheel (2) are fixed together with the metal piece (4) in a fitted mode. Since the fluorescent wheel (1) and the color correction wheel (2) are fixed on the metal piece (4), heat generated by the fluorescent wheel (1) can be quickly transmitted to the metal piece (4) and the color correction wheel (2) and emitted into the air, thereby enlarging the heat dissipation area, and increasing the heat dissipation efficiency. ## Claims ### Claim 1 A color wheel with color correction and heat dissipation structures, comprising: a phosphor wheel; a color correction wheel; a rotation shaft; and a metal piece, wherein the metal piece is affixed to the rotation shaft, and wherein the phosphor wheel and the color correction wheel are affixed to the metal piece and are in contact with the metal piece. ### Claim 2 (depends on 1) The color wheel of claim 1, wherein the phosphor wheel and the color correction wheel are affixed to the metal piece by adhesion or welding. ### Claim 3 (depends on 1) The color wheel of claim 1, wherein the metal piece is a round plate, its diameter being larger than an outer diameter of the phosphor wheel and smaller than an outer diameter of the color correction wheel. ### Claim 4 (depends on 3) The color wheel of claim 3, further comprising a mounting member, wherein the phosphor wheel and the color correction wheel are located on two different sides of the metal piece, and wherein the mounting member affixes the color correction wheel on the rotation shaft. ### Claim 5 (depends on 4) The color wheel of claim 4, further comprising a transparent glass plate disposed outside of the phosphor wheel. ### Claim 6 (depends on 4) The color wheel of claim 4, wherein the metal piece has a vertical upwardly extending round rim at its periphery, wherein the rim forms a circle and the phosphor wheel is located within the circle of the metal piece. ### Claim 7 (depends on 6) The color wheel of claim 6, wherein the phosphor wheel includes a phosphor layer and a setting layer, wherein the setting layer restrains the phosphor layer within the circle formed by the metal piece. ### Claim 8 (depends on 3) The color wheel of claim 3, wherein the phosphor wheel and the color correction wheel are located on a same side of the metal piece. ### Claim 9 (depends on 8) The color wheel of claim 8, wherein the phosphor wheel is inserted into concentric with the color correction wheel. ### Claim 10 (depends on 9) The color wheel of claim 9, further comprising a heat dissipation structure disposed on a side of the metal piece opposite the phosphor wheel and the color correction wheel. ### Claim 11 (depends on 10) The color wheel of claim 10, wherein the heat dissipation structure is an impeller having spiral shaped blades. ### Claim 12 (depends on 1) The color wheel of claim 1, wherein the color correction wheel is formed of a material having a high thermal conductivity. ### Claim 13 (depends on 1) The color wheel of claim 1, wherein the rotation shaft and the metal piece are formed integrally as one piece.