PROJECTOR

• Main Author: SUGIYAMA NOBUO
• Format: Patent
• Language: English; Japanese
• Published: 17.12.2020
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CINEMATOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PRINTED CIRCUITS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To solve the problem in which: in improving the performance to cool a projector, the size of cooling means is increased and the size of the projector is increased.SOLUTION: An aspect of a projector of the present invention is a projector including an object of cooling, and comprises: a light source device that emits light; a light modulator that modulates the light from the light source device according to an image signal; a projection optical device that projects the light modulated by the light modulator; and a cooling device that cools the object of cooling with a change of coolant to gas. The cooling device has a coolant generation unit that generates coolant, a coolant transmission unit that transmits the generated coolant toward the object of cooling, and a cooling air blowing device that sends air to the object of cooling. The object of cooling has an object of cooling main body part and a part to be cooled that is thermally connected to the object of cooling main body and to which the coolant is transmitted from the coolant transmission unit. In the direction of flow of the air sent from the cooling air blowing device to the object of cooling, the part to be cooled is arranged on the downstream side of the object of cooling main body.SELECTED DRAWING: Figure 6 【課題】プロジェクターの冷却性能を向上させる場合、冷却手段が大型化し、プロジェクターが大型化する問題があった。【解決手段】本発明のプロジェクターの一つの態様は、冷却対象を備えるプロジェクターであって、光を射出する光源装置と、光源装置からの光を画像信号に応じて変調する光変調装置と、光変調装置により変調された光を投射する投射光学装置と、冷媒が気体へ変化することで冷却対象を冷却する冷却装置と、を備え、冷却装置は、冷媒を生成する冷媒生成部と、生成された冷媒を冷却対象に向けて伝送する冷媒伝送部と、冷却対象に空気を送る冷却送風装置と、を有し、冷却対象は、冷却対象本体部と、冷却対象本体部に熱的に接続され、冷媒伝送部から冷媒が伝送される被冷却部と、を有し、冷却送風装置から冷却対象に送られる空気の流れ方向において、被冷却部は、冷却対象本体部の下流側に配置されていることを特徴とする。【選択図】図６