Title:
PROJECTION LENS SYSTEM AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/034159
Kind Code:
A1
Abstract:
A projection lens system which is arranged between an object side at which a micro-display panel is located and an image side at which a screen is located, and includes an aperture stop; a front lens group arranged at an object-side of the aperture stop and having a positive refractive power; a rear lens group arranged at an image-side of the aperture stop, the rear lens group including a first aspherical lens at a position closest to the image side and a second aspherical lens adjacent to an object-side surface of the first aspherical lens; and an aspherical mirror having a negative refractive power and reflecting light coming from the rear lens group toward the image side.
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| WO/2012/027064 | WIDE-ANGLE PROJECTION LENS FOR PROJECTION DISPLAY SYSTEMS |
Inventors:
KIM JUNG-HYUNG (KR)
KIM HEE-KYUNG (KR)
PARK JUNG-CHUL (KR)
SONG SE-JUN (KR)
YANG SUNG-KWANG (KR)
LEE YOON-GI (KR)
KIM HEE-KYUNG (KR)
PARK JUNG-CHUL (KR)
SONG SE-JUN (KR)
YANG SUNG-KWANG (KR)
LEE YOON-GI (KR)
Application Number:
PCT/KR2016/007989
Publication Date:
March 02, 2017
Filing Date:
July 22, 2016
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G02B9/64; G02B13/18; G03B21/14
Foreign References:
| JP2005292813A | 2005-10-20 | |||
| US20080158439A1 | 2008-07-03 | |||
| JP2014170129A | 2014-09-18 | |||
| KR100657338B1 | 2006-12-14 | |||
| KR20050090442A | 2005-09-13 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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