Title:
撮像レンズおよび撮像装置
Document Type and Number:
Japanese Patent JP6548590
Kind Code:
B2
Abstract:
The imaging lens consists of, in order from the object side, a first lens group G1 having a positive power, a diaphragm, a second lens group G2 having a positive power, and a third lens group G3. Each of the lens groups includes three or more lenses. A positive lens is disposed on a most object side in the first lens group G1, and a meniscus lens, which is concave toward the object side, is disposed to be closest to the object side in the second lens group G2. During focusing from an infinite distance object to a close-range object, elements ranging from the first lens group G1 to the second lens group G2 integrally move toward the object side, and the third lens group G3 remains stationary. The imaging lens satisfies a conditional expression about a radius of curvature of an air lens of the first lens group G1.
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Inventors:
Masato Kondo
Application Number:
JP2016028609A
Publication Date:
July 24, 2019
Filing Date:
February 18, 2016
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B13/00
Domestic Patent References:
| JP2001318309A | ||||
| JP9218349A | ||||
| JP8220427A | ||||
| JP2011253050A |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office