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    • 2. 发明公开
    • LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS
    • LICHTQUELLENVORRICHTUNG UND PROJEKTIONSANZEIGEVORRICHTUNG
    • EP2418541A1
    • 2012-02-15
    • EP10761429.9
    • 2010-04-06
    • Mitsubishi Electric Corporation
    • KOJIMA, KunikoYAMADA, AkihiroKIDA, HiroshiMATSUO, Hirofumi
    • G03B21/14G03B21/00H04N5/74
    • G03B21/2046G03B21/2013G03B21/2066H04N9/3164
    • In the light source device (10) of the projection type display apparatus, wherein light utilization efficiency is high, luminous intensity uniformity on a screen is also high, and the long life of the light source device can be achieved, and a first light source lamp (11), a second light source lamp (12) and a relay optical system (13) are arranged so that there is no part where an optical axis (13c1, 13c2, 13c3) of a first light flux (L1) from the first light source lamp (11) through the relay optical system (13) to an entrance end (15a) of a light intensity equalizing element (15) and an optical axis of a second light flux from the second light source lamp (12) to the entrance end (15a) agree with each other, and the optical axis (13c3) of the first light flux (L1) immediately before incidence on the entrance end (15a) and the optical axis (12c) of the second light flux (L2) from the second light source lamp (12) to the entrance end (15a) are substantially parallel to each other.
    • 在光利用效率高的投影型显示装置的光源装置(10)中,屏幕上的发光强度均匀性也高,能够实现光源装置的长寿命,第一光源 灯(11),第二光源灯(12)和中继光学系统(13)被布置成使得不存在来自第一光源灯(11)的第一光通量(L1)的光轴(13c1,13c2,13c3) 第一光源灯(11)通过中继光学系统(13)到达光源均衡元件(15)的入口端(15a)和来自第二光源灯(12)的第二光束的光轴到 入口端(15a)彼此一致,并且紧接在入射端(15a)之前的第一光束(L1)和第二光束(L2)的光轴(12c)的光轴(13c3) )从第二光源灯(12)到入口端(15a)基本上彼此平行。
    • 3. 发明公开
    • PROJECTION DISPLAY DEVICE
    • PROJEKTIONSANZEIGEVORRICHTUNG
    • EP2357526A1
    • 2011-08-17
    • EP09831613.6
    • 2009-10-21
    • Mitsubishi Electric Corporation
    • KOJIMA, KunikoKIDA, Hiroshi
    • G03B21/14H04N5/74
    • G03B21/14G03B21/2013G03B21/2053G03B21/2066H04N9/3152H04N9/3164
    • A projection type display apparatus having a long-life light source device with high light utilization efficiency includes first and second light source lamps 11 and 12; a light intensity equalizing element 15; first and second bending mirrors 13 and 14; an image display element 61 modulating a light flux L3 emitted from the light intensity equalizing element 15 and converting it into image light L4; and a projection optical system 62 projecting the image light on a screen 63; and the first light source lamp 11, the second light source lamp 12, the first bending mirror 13 and the second bending mirror 14 are arranged so that a first optical axis 11c of the first light source lamp 11 disagrees with a second optical axis 12c of the second light source lamp 12 and a first distance between the first bending mirror 13 and an incidence end 15a differs from a second distance between the second bending mirror 14 and the incidence end 15a.
    • 具有光利用效率高的长寿命光源装置的投影型显示装置包括第一和第二光源灯11和12; 光强均衡元件15; 第一和第二弯曲镜13和14; 调制从光强均衡元件15发射的光束L3并将其转换为图像光L4的图像显示元件61; 以及将图像光投射在屏幕63上的投影光学系统62; 并且第一光源灯11,第二光源灯12,第一弯曲镜13和第二弯曲镜14被布置成使得第一光源灯11的第一光轴11c与第二光源灯11的第二光轴12c不一致 第二光源灯12和第一弯曲镜13与入射端15a之间的第一距离与第二弯曲镜14与入射端15a之间的第二距离不同。