Title:
OPTICAL SIGHT
Document Type and Number:
WIPO Patent Application WO/2020/161781
Kind Code:
A1
Abstract:
Provided is an optical sight that is provided with a cylindrical lens frame 24 and a plurality of fixing components 60 for securing an objective lens 20 to the inside of a barrel body 11, wherein: the objective lens 20 is held on the inner peripheral surface of the lens frame 24; a male screw 24a, which can be screwed into a female screw 11a provided on the inner peripheral surface of the barrel body 11, is provided on the outer peripheral surface of the lens frame 24; a plurality of through-holes 61 is created at the wall section of the lens frame 24 corresponding to the outer peripheral surface of the objective lens 20 along the circumference; each of the plurality of fixing members 60 is made of a metal or synthetic resin having hardness lower than the barrel body 11, and has a shape such that the same can be put into the through-hole 61 and a height such that the same can be projected from the through-hole 61; and an assembly including the objective lens 20, the lens frame 24, and the plurality of fixing members 60 is screwed into the female screw 11a provided on the inner peripheral surface of the barrel body 11.
Inventors:
ABE TAKASHI (JP)
SAKAI KENSUKE (JP)
SAKAI KENSUKE (JP)
Application Number:
PCT/JP2019/003938
Publication Date:
August 13, 2020
Filing Date:
February 05, 2019
Export Citation:
Assignee:
LIGHT OPTICAL WORKS LTD (JP)
International Classes:
G02B23/14; F41G1/38; G02B7/02; G02B23/10
Foreign References:
| US4408842A | 1983-10-11 | |||
| US20150168665A1 | 2015-06-18 | |||
| US4266873A | 1981-05-12 | |||
| JP2001133697A | 2001-05-18 |
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
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