# US 10,865,950 B2 · Light source unit and projection-type display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,950 B2 - Document ID: US10865950B2 - Status: Granted - Kind: B2 - Application number: 16/523,361 - Filed: 2019-07-26 - Published: 2019-11-14 - Granted: 2020-12-15 - Earliest claimed: 2015-05-15 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Masahiro Ishige; Izushi Kobayashi; Yoshihisa Sato; Hiroki Morita - Web page: https://patentgrep.com/patent/US10865950B2 ## CPC - F21S 2/005: {of modular construction} - F21V 7/22: characterised by materials, surface treatments or coatings, e.g. dichroic reflectors - F21V 9/32: characterised by the arrangement of the photoluminescent material - F21V 9/45: by adjustment of photoluminescent elements - F21V 13/14: the elements being filters or photoluminescent elements, reflectors and refractors - F21V 29/15: Thermal insulation - F21V 29/502: characterised by the adaptation for cooling of specific components - G03B 21/14: Details - 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)} - H04N 5/74: Projection arrangements for image reproduction, e.g. using eidophor - H04N 9/3144: {Cooling systems (cooling of liquid crystal cells in general G02F1/133382; cooling of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/16)} - H04N 9/3158: {for controlling the spectrum} - F21Y 2115/10: Light-emitting diodes [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A light source unit includes a substrate that is rotatable, a phosphor layer disposed at a center of the substrate, a light source that irradiates the phosphor layer with exciting light, and a support section that supports a portion, of the substrate, except for the center of the substrate. This makes it difficult for heat generated in the phosphor layer to travel to a motor through the substrate. ## Claims ### Claim 1 A light source unit, comprising: a substrate; a phosphor layer on the substrate; a light source configured to irradiate the phosphor layer with exciting light; and a support section configured to support a first portion of the substrate, wherein the support section is in contact with both the first portion of the substrate and a part of a second portion of the substrate, the second portion of the substrate faces the phosphor layer, and the first portion of the substrate is different from the second portion of the substrate. ### Claim 2 (depends on 1) The light source unit according to claim 1, wherein the support section is rotatable. ### Claim 3 (depends on 2) The light source unit according to claim 2, wherein the support section has a first concave section having a recess at the second portion of the substrate, and the first concave section is configured as a first clearance between the second portion of the substrate and the support section. ### Claim 4 (depends on 2) The light source unit according to claim 2, wherein the support section has a plurality of convex sections at the first portion of the substrate, and the plurality of convex sections is configured as a clearance between the second portion of the substrate and the support section. ### Claim 5 (depends on 3) The light source unit according to claim 3, wherein the support section has a plurality of second concave sections at the second portion of the substrate, and each second concave section of the plurality of second concave sections is configured as a second clearance between the support section and the substrate. ### Claim 6 (depends on 3) The light source unit according to claim 3, wherein the support section has a fixing section configured to fix a shaft of a motor, at an undersurface of the first concave section. ### Claim 7 (depends on 6) The light source unit according to claim 6, wherein the support section has a second concave section, around the fixing section, of the undersurface of the first concave section, and a shape of the second concave section is ring-shaped. ### Claim 8 (depends on 1) The light source unit according to claim 1, wherein the substrate and the phosphor layer have a disk shape, and the phosphor layer is concentric with the substrate. ### Claim 9 (depends on 1) The light source unit according to claim 1, wherein the substrate has a disk shape, the phosphor layer has a ring shape, and the phosphor layer is concentric with the substrate. ### Claim 10 (depends on 1) The light source unit according to claim 1, further comprising a motor coupled to the support section, wherein the support section is further configured to transmit rotation driving force of the motor to the substrate. ### Claim 11 (depends on 1) The light source unit according to claim 1, wherein the substrate is rotatable. ### Claim 12 (depends on 1) The light source unit according to claim 1, wherein the phosphor layer is at a center of the substrate. ### Claim 13 (depends on 1) The light source unit according to claim 1, wherein the first portion of the substrate is other than a center of the substrate. ### Claim 14 (depends on 1) The light source unit according to claim 1, wherein the support section is configured to support the first portion of the substrate, except for a center of the substrate. ### Claim 15 (depends on 14) The light source unit according to claim 14, wherein the first portion of the substrate is non-facing the phosphor layer. ### Claim 16 A projection-type display, comprising: a substrate; a phosphor layer on the substrate; a light source configured to irradiate the phosphor layer with exciting light; a support section configured to support a first portion of the substrate, wherein the support section is in contact with both the first portion of the substrate and a part of a second portion of the substrate, the second portion of the substrate faces the phosphor layer, and the first portion of the substrate is different from the second portion of the substrate; an optical modulation section configured to generate image light based on modulation of the exciting light, wherein the modulation is based on an image signal; and a projection section is configured to project the image light. ### Claim 17 A light source unit, comprising: a substrate; a phosphor layer on the substrate; a light source configured to irradiate the phosphor layer with exciting light; and a support section configured to support a first portion of the substrate, wherein the support section is rotatable, the first portion of the substrate is different from a second portion of the substrate that faces the phosphor layer, the support section has a concave section having a recess at the second portion of the substrate, and the concave section is a clearance between the second portion of the substrate and the support section.