OPTICAL SYSTEM INCLUDING NEGATIVE LENS AND POSITIVE LENS, IMAGING APPARATUS INCLUDING THE SAME, IN-VEHICLE SYSTEM INCLUDING THE SAME, AND MOVING APPARATUS INCLUDING THE SAME

OPTICAL SYSTEM INCLUDING NEGATIVE LENS AND POSITIVE LENS, IMAGING APPARATUS INCLUDING THE SAME, IN-VEHICLE SYSTEM INCLUDING THE SAME, AND MOVING APPARATUS INCLUDING THE SAME

An optical system includes a negative lens and a positive lens adjacent to each other, wherein the following inequalities are satisfied: 0.00 ≤ DAB ≤ 1.00, and 0.80 ≤ RA/RB ≤ 1.20, where DAB[mm] denotes a distance on an optical axis between the negative lens and the positive lens, and RA and RB deno...

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Bibliographische Detailangaben
Hauptverfasser: DOUJOU, Naoto, KAJIYAMA, Kazuhiko
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Zusammenfassung:An optical system includes a negative lens and a positive lens adjacent to each other, wherein the following inequalities are satisfied: 0.00 ≤ DAB ≤ 1.00, and 0.80 ≤ RA/RB ≤ 1.20, where DAB[mm] denotes a distance on an optical axis between the negative lens and the positive lens, and RA and RB denote curvature radii of facing lens surfaces of the negative lens and the positive lens, respectively, and wherein specific inequalities are satisfied.