公开(公告)号：US5432807A

公开(公告)日：1995-07-11

申请号：US208139

申请日：1994-03-09

申请人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

发明人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  H01S3/109 ,  H01S3/10

CPC分类号： G02F1/37 ,  H01S3/109 ,  G02F1/3553 ,  G02F2001/3546

摘要： In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.

摘要翻译： 在光波长变换装置中，基波对非线性光学材料的晶体入射，实现了基波和二次谐波之间的相位匹配型II，从而将基波的二次谐波从 光波长转换装置。 使用由相同材料构成的两个晶体作为晶体。 两个晶体具有相等的长度并且位于取向上，使得相应的光轴彼此相差90度。 光波长转换装置产生具有最大可能输出功率的二次谐波，并且可以保持尺寸小，成本低。

公开(公告)号：US5416877A

公开(公告)日：1995-05-16

申请号：US384532

申请日：1989-07-25

申请人： Chiaki Goto

发明人： Chiaki Goto

IPC分类号： G02B6/34 ,  G02B6/42 ,  G02F1/383 ,  G02F1/37

CPC分类号： G02B6/02052 ,  G02B6/34 ,  G02B6/4203 ,  G02F1/383

摘要： Fiber Cherenkov type optical wavelength converter device includes a cladding having an exit end for emitting a wavelength-converted wave. The exit end of the cladding is either of a conical shape, or supports a grating composed of concentric patterns which convert the conical wavefront of the wavelength-converted wave into a plane or spherical wavefront. Alternatively, the optical wavelength converter module comprises a fiber Cherenkov type optical converter device and an optical device, such as a lens or grating device, which convert the conical wavefront of the wavelength-converted wave into a plane or spherical wavefront.

摘要翻译： 光纤切伦科夫型光波长转换器装置包括具有用于发射波长转换波的出射端的包层。 包层的出口端是圆锥形的，或者支撑由同心图案组成的光栅，该光栅将波长转换波的锥形波前转换成平面或球面波前。 或者，光波长转换器模块包括光纤切伦科夫型光转换器装置和诸如透镜或光栅装置的光学装置，其将波长转换波的锥形波前转换成平面或球面波前。

公开(公告)号：US4814617A

公开(公告)日：1989-03-21

申请号：US786553

申请日：1985-10-11

申请人： Chiaki Goto

发明人： Chiaki Goto

IPC分类号： H04N1/04 ,  G01T1/29 ,  G03B42/02 ,  H04N1/028 ,  H04N1/40 ,  G01N23/04

CPC分类号： H04N1/40056 ,  G01T1/2014 ,  H04N1/0281

摘要： A radiation image read-out apparatus comprises two or more photodetectors positioned side by side along a scanning line for detecting light emitted by a stimulable phosphor sheet carrying a radiation image stored therein when it is exposed to stimulating rays. Turning on and off of the photodetectors is controlled in accordance with the movement of a scanning point so that at least the photodetector farthest from the scanning point at any given instant is turned off, and at least the photodetector nearest the scanning point is turned on.

摘要翻译： 放射线图像读取装置包括沿着扫描线并排布置的两个或更多个光电检测器，用于当暴露于刺激光线时，用于检测携带其中存储的辐射图像的可刺激的磷光体片发射的光。 根据扫描点的移动来控制光电检测器的接通和关闭，使得至少在任何给定时刻离扫描点最远的光电检测器被关闭，并且至少最靠近扫描点的光电检测器被接通。