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    • 2. 发明申请
    • LIGHT SOURCE DEVICE
    • 光源设备
    • US20070279916A1
    • 2007-12-06
    • US11751439
    • 2007-05-21
    • Yuichi KOBAYASHI
    • Yuichi KOBAYASHI
    • F21V7/00
    • F21V7/04F21V7/09H01J61/86H04N9/315
    • A light source device has a discharge lamp in which within the discharge vessel there is a pair of opposed electrodes, a concave reflector which has an ellipsoidal front reflector part which is provided with a light exit opening, and a spherical reflector part which borders the back end of the ellipsoidal front reflector part, is improved in that the middle between the electrodes of the discharge lamp is arranged with respect to the concave reflector such that the middle is located in front of a virtual plane which includes the boundary region between the ellipsoidal front reflector part and the spherical reflector part. The concave reflector can also have an ellipsoidal rear reflector part which borders a back end of the spherical reflector part.
    • 光源装置具有放电灯,其中在放电容器内有一对相对电极,凹面反射器具有设有光出口的椭圆形前反射器部分和与背面接触的球形反射器部分 改进了放电灯的电极之间的中间相对于凹面反射体布置,使得中间位于虚拟平面的前方,该虚拟平面包括椭圆形前部反射器部分之间的边界区域 反射器部分和球形反射器部分。 凹面反射器还可以具有与球面反射器部分的后端相接的椭圆后反射器部分。