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    • 2. 发明专利
    • Rear projection optical system providing wide angle-of-view and high resolution
    • 后投影光系统提供宽视角和高分辨率
    • JP2005242351A
    • 2005-09-08
    • JP2005042708
    • 2005-02-18
    • Samsung Electronics Co Ltd三星電子株式会社Samsung Electronics Co.,Ltd.
    • KIM SUNG-TAE
    • G02B13/00G02B13/04G02B13/16G02B13/18G02F1/1335G03B21/10G03B21/14
    • G02B13/04G02B13/16
    • PROBLEM TO BE SOLVED: To provide a rear projection lens, realizing high resolution such that the unit cell of an image forming panel can be separated and realizing a wide angle-of-view to possess a small projection distance. SOLUTION: The rear projection optical system, for enlarging an image formed on the image forming panel and projecting it to the back of a screen, includes a front lens group arranged on the screen side and constituted of 1st to 3rd lenses each having negative refractive power and a 4th lens and a 5th lens, each having positive refractive power; a rear lens group arranged on the panel side and constituted of a 6th lens having positive refractive power and a 7th lens having negative refractive power which constitute a 1st bonding lens; an 8th lens having negative refractive power and a 9th lens having positive refractive power which constitute a 2nd bonding lens; and a 10th lens having negative refractive power, and a diaphragm arranged between the front lens group and the group lens rear for adjusting the light quantity. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供一种后投影透镜,实现高分辨率,使得图像形成面板的单元可以被分离并实现具有小的投影距离的广角。 解决方案:用于放大形成在图像形成面板上并且将其投影到屏幕背面的图像的后投影光学系统包括布置在屏幕侧并由第1至第3透镜构成的前透镜组,每个具有 负折射力和第四透镜和第五透镜,每个具有正的折射光焦度; 布置在面板侧并由构成第一粘合透镜的具有正折光力的第六透镜和具有负折光力的第七透镜构成的后透镜组; 构成第二粘合透镜的具有负屈光力的第八透镜和具有正屈光力的第九透镜; 和具有负屈光力的第十透镜,以及布置在前透镜组和组透镜后部之间用于调节光量的光阑。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • DE60209841T2
    • 2006-08-17
    • DE60209841
    • 2002-09-11
    • SAMSUNG ELECTRONICS CO LTD
    • HWANG SEONG-TAEKSONG KWAN-WOONGKIM SUNG-TAEJOO YOUNG-HOONPARK SUNG-JIN
    • H01S3/067H04B10/2507G02B6/00H01S3/00H01S3/094H04B10/2525H04B10/29H04B10/291H04J14/00H04J14/02
    • Disclosed is a dispersion-compensated optical-fiber amplifier including a circulator for outputting an optical signal received at a first terminal connected to an optical fiber to a second terminal, while outputting an optical signal received at the second terminal to a third terminal connected to the optical fiber; a first amplifier for amplifying the optical signal from the second terminal and an optical signal reapplied thereto by utilizing an induced emission of pumped-excited ions; a dispersion-compensating fiber for compensating for a dispersion occurring in the optical signal received from the first amplifier and an optical signal reapplied thereto; a second amplifier for amplifying the optical signal from the dispersion-compensating fiber and an optical signal reapplied thereto by utilizing an induced emission of pumped-excited ions; a splitter installed on the dispersion-compensating fiber and adapted to output to the dispersion-compensating fiber, an optical signal applied thereto and an optical signal reapplied thereto, while outputting a pumping light applied to one end thereof and adapted to pump both the first and second amplifiers to the other end thereof without allowing the pumping light to pass through the dispersion-compensating fiber; and, a reflector for reflecting back an optical signal from the second amplifier, so that the reflected optical signal is reapplied to the second amplifier, the splitter, the first amplifier, and the circulator, in this order.
    • 7. 发明专利
    • DE60209841D1
    • 2006-05-11
    • DE60209841
    • 2002-09-11
    • SAMSUNG ELECTRONICS CO LTD
    • HWANG SEONG-TAEKSONG KWAN-WOONGKIM SUNG-TAEJOO YOUNG-HOONPARK SUNG-JIN
    • H01S3/067H04B10/2507G02B6/00H01S3/00H01S3/094H04B10/2525H04B10/29H04B10/291H04J14/00H04J14/02
    • Disclosed is a dispersion-compensated optical-fiber amplifier including a circulator for outputting an optical signal received at a first terminal connected to an optical fiber to a second terminal, while outputting an optical signal received at the second terminal to a third terminal connected to the optical fiber; a first amplifier for amplifying the optical signal from the second terminal and an optical signal reapplied thereto by utilizing an induced emission of pumped-excited ions; a dispersion-compensating fiber for compensating for a dispersion occurring in the optical signal received from the first amplifier and an optical signal reapplied thereto; a second amplifier for amplifying the optical signal from the dispersion-compensating fiber and an optical signal reapplied thereto by utilizing an induced emission of pumped-excited ions; a splitter installed on the dispersion-compensating fiber and adapted to output to the dispersion-compensating fiber, an optical signal applied thereto and an optical signal reapplied thereto, while outputting a pumping light applied to one end thereof and adapted to pump both the first and second amplifiers to the other end thereof without allowing the pumping light to pass through the dispersion-compensating fiber; and, a reflector for reflecting back an optical signal from the second amplifier, so that the reflected optical signal is reapplied to the second amplifier, the splitter, the first amplifier, and the circulator, in this order.