Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RETICLE, RETICLE UNIT, RIFLE SCOPE, AND OPTICAL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/221644
Kind Code:
A1
Abstract:
Provided are a reticle with a novel configuration and on which a prescribed pattern can be formed, a reticle unit, and an optical apparatus such as a rifle scope. On a reticle 30A1, on which a pattern that serves as an indicator when an observation target is to be sighted has been formed, the pattern is composed of projecting sections 33a, 33b disposed on a pattern formation surface 31a of a plate-shaped optical member 31. The projecting sections 33a, 33b are composed of a plurality of projecting ridges 133 (structures) that are arranged parallel to the width direction of lines forming the pattern and that extend longitudinally. The projecting ridges 133 each include an inclined surface 140 that is inclined with respect to the optical axis of an observation optical path, and the angle of inclination of the inclined surface 140 with respect to the optical axis Z is set such that light incident from an objective lens is made to deflect toward the outside of the observation optical path.

Inventors:
WATANABE KOICHI (JP)
KAWAKAMI JUN (JP)
TOMITA KATSUNORI (JP)
ISHIKAWA YASUAKI (JP)
OKAZAKI SATORU (JP)
Application Number:
PCT/JP2018/020925
Publication Date:
December 06, 2018
Filing Date:
May 31, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIKON CORP (JP)
NIKON VISION CO LTD (JP)
International Classes:
F41G1/01; F41G1/027; F41G1/14; G02B23/00
Domestic Patent References:
WO2012057010A12012-05-03
Foreign References:
US8541713B12013-09-24
JP2011017884A2011-01-27
JPH05259020A1993-10-08
US7793456B12010-09-14
US1302353A1919-04-29
Other References:
See also references of EP 3633312A4
Attorney, Agent or Firm:
IWASAKI Takashi (JP)
Download PDF: