IMAGING LENS, IMAGING DEVICE USING SAME, AND DISTANCE MEASURING SYSTEM

Title:

IMAGING LENS, IMAGING DEVICE USING SAME, AND DISTANCE MEASURING SYSTEM

Document Type and Number:

WIPO Patent Application WO/2016/121550

Kind Code:

A1

Abstract:

In order to provide an imaging lens capable of widening a photographic view angle while securing the angular resolution capability required for the entire shooting range, an imaging lens includes at least: a first lens having a first surface on which a principal beam is incident, and a second surface from which the principal beam is emitted; and a second lens having a third surface on which the principal beam emitted from the first lens is incident, and a fourth surface from which the principal beam is emitted. The imaging lens is such that when the principal beam is incident on the first lens, an incidence angle θn at which the principal beam is vertically incident on the first surface exists at points other than the center of the first surface.

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Inventors:

BETSUI KEIICHI (JP)
MURATA SEIJI (JP)

Application Number:

PCT/JP2016/051280

Publication Date:

August 04, 2016

Filing Date:

January 18, 2016

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

International Classes:

G02B13/04; G02B13/18

Foreign References:

JPS51102630A	1976-09-10
JPS4890523A	1973-11-26
JPS4727021A
JP2013134303A	2013-07-08
JP2012163746A	2012-08-30
JP2004252101A	2004-09-09
JP2011175198A	2011-09-08
JP2010271429A	2010-12-02

Other References: