Title:
IMAGING LENS, IMAGING UNIT, AND PORTABLE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2005/116715
Kind Code:
A1
Abstract:
An imaging lens for focusing an object image on a solid-state imaging element, in which a first lens, a second lens, and a third lens each have at least one aspheric surface and satisfy the following expressions. 15° < IAD < 35° (1), &Verbar IAh - (IAD·Yh/YD)&Verbar < 5° (2), where YD: 1/2 the diagonal line length in a rectangular effective pixel region of the solid-state imaging element Yh :Any image height of the imaging lens (where Yh D) IAD :Angle between the main light beam and the optical axis of a light flux focusing at an image height YD of the imaging lens IAh : Angle between the main light beam and the optical axis of a light flux focusing at an image height Yh of the imaging lens
Inventors:
YAMAGUCHI SUSUMU (JP)
ISONO MASASHI (JP)
ISONO MASASHI (JP)
Application Number:
PCT/JP2005/008980
Publication Date:
December 08, 2005
Filing Date:
May 17, 2005
Export Citation:
Assignee:
KONICA MINOLTA OPTO INC (JP)
YAMAGUCHI SUSUMU (JP)
ISONO MASASHI (JP)
YAMAGUCHI SUSUMU (JP)
ISONO MASASHI (JP)
International Classes:
G02B13/00; H04N5/225; H04N5/232; (IPC1-7): G02B13/00
Foreign References:
| JP2004037960A | 2004-02-05 | |||
| JP2004004566A | 2004-01-08 | |||
| JP2004133058A | 2004-04-30 | |||
| JP2004004765A | 2004-01-08 |
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