LENS UNIT AND IMAGING APPARATUS

Title:

LENS UNIT AND IMAGING APPARATUS

Document Type and Number:

Japanese Patent JP2016206579

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a lens unit capable of preventing out-of-focus due to thermal expansion or thermal contraction with a simple structure, and to provide an imaging apparatus.SOLUTION: A lens unit 10 in an embodiment is a lens unit having three or more lenses therein including a set of lenses each having a power sign different from each other disposed being neighboring to each other. When temperature changes, a lens (third lens 18) which is disposed at the image side in the lens set each having a power sign different from moves with respect to a lens (second lens 17) disposed at the object side.SELECTED DRAWING: Figure 1

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Inventors:

SUGIYAMA TAKASHI
HIRATA HIROYUKI
HIRAMA HIROYUKI

Application Number:

JP2015091175A

Publication Date:

December 08, 2016

Filing Date:

April 28, 2015

Export Citation:

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Assignee:

HITACHI MAXELL

International Classes:

G02B7/02

Domestic Patent References:

JPH06186466A	1994-07-08
JPH02126209A	1990-05-15
JPS57208518A	1982-12-21
JPS5419757A	1979-02-14

Attorney, Agent or Firm:

Ken Ieiri

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