Title:
接眼光学系及び撮像装置
Document Type and Number:
Japanese Patent JP7280561
Kind Code:
B2
Abstract:
Provided are: an eyepiece optical system EL having favorable optical performance and a high observation magnification power; an optical device having this eyepiece optical system EL; and a method for producing an eyepiece optical system EL. This eyepiece optical system EL satisfies the following conditional expression, and has, in order from the observation object side: a first lens component having a positive refractive power; a second lens component having a negative refractive power; a third lens component having a positive refractive power; and a fourth lens component having a positive refractive power. 1.38
Inventors:
Ayumu Makita
Application Number:
JP2022032904A
Publication Date:
May 24, 2023
Filing Date:
March 03, 2022
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G02B25/00; G02B13/18
Domestic Patent References:
JP2001066522A | ||||
JP2002048985A | ||||
JP2018028632A | ||||
JP2017068129A | ||||
JP2016224239A |
Attorney, Agent or Firm:
Takeyo Hosaka
Takashi Iwasaki
Takashi Iwasaki