OPTICAL SYSTEM
申请公布号:JP2003302578(A)
申请号:JP20020045938
申请日期:2002.02.22
申请公布日期:2003.10.24
发明人:NISHIOKA KIMIHIKO;NAGATA TETSUO;YASUDA EIJI;SEKIYAMA KENTARO
分类号:G03B13/06;G02B3/14;G02B5/04;G02B5/10;G02B5/18;G02B7/04;G02B7/10;G02B13/00;G02B13/18;G02B15/00;G02B15/14;G02B17/08;G02B25/00;G02B26/08;G03B21/00;H04N5/225;(IPC1-7):G02B17/08
主分类号:G03B13/06
摘要:PROBLEM TO BE SOLVED: To provide an optical system such as a focus-controllable lens system or a variable-focus lens system which has reduced power consumptions, ensures noiseless operation and fast response and contributes to cost reductions for the reason of simplified structure. SOLUTION: In an optical device comprising: an element 409 having variable optical properties; and an image plane 612, the image plane 612 is placed in the range of movement of an image-formation surface associated with the change in the element 409 in order to correct the movement of the image- formation surface of the optical system 614 associated with the change of the element 409. COPYRIGHT: (C)2004,JPO
TAPE FOR LIGHT EMITTING DIODE DISPLAY DEVICE
ANALYZING DEVICE OF MULTI-PATH
DRIVE CIRCUIT FOR AMPLIFYING GATE TYPE GTO
SPEED CONTROLLING DEVICE OF MULTI-STRAND CONTINUOUS ROLLING MILL
NETWORK CONGESTION REGULATING SYSTEM
COIL IN VACUUM CONTAINER OF NUCLEAR FUSION REACTOR
INSULATED TYPE SEMICONDUCTOR DEVICE
WELDING DEVICE IN CONVEYOR LINE
BRUSHLESS SINGLE PHASE SYNCHRONOUS GENERATOR WITH AC EXCITER