发明名称 |
Projection display device |
摘要 |
A projection display device is provided with a main body cabinet; a projection port which is formed in the main body cabinet to guide modulated light to an outside of the projection display device; an air outlet which is formed at least in one of two surfaces of the main body cabinet facing each other across the projection port; and an exhaust unit which discharges, to the outside, air that has been warmed by heat exchange with a member to be cooled which is disposed in the main body cabinet through the air outlet. In this arrangement, the exhaust unit includes an exhaust fan, and a deflection member which deflects air discharged from the exhaust fan in a direction away from the projection plane. |
申请公布号 |
US9158186(B2) |
申请公布日期 |
2015.10.13 |
申请号 |
US201113104382 |
申请日期 |
2011.05.10 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
Gishi Hiromitsu;Yoshimura Taichi;Shiraito Kouji;Lee Jaehyun |
分类号 |
G03B21/18;G03B21/16;H04N9/31 |
主分类号 |
G03B21/18 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A projection display device comprising:
a main body cabinet; a projection port which is formed on a top surface of the main body cabinet to guide, to an outside of the projection display device, image light reflected on a reflection mirror; a projection optical unit which reflects image light, generated by modulating light from a light source and projected from a projection lens unit, on the reflection mirror to project the image light through the projection port onto a projection plane, the projection plane being arranged diagonally forward above the main body cabinet; an air outlet which is formed at least in one of right and left side surfaces of the main body cabinet, the air outlet being arranged in a position anterior to the projection port; and an exhaust unit which discharges, to the outside, air that has been warmed by heat exchange with a member to be cooled which is disposed in the main body cabinet through the air outlet, wherein the exhaust unit includes an exhaust fan, and a deflection member which orients, downward and backward from the main body cabinet, air discharged from the exhaust fan. |
地址 |
Osaka JP |