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Title: Sighting optics including an optical element having a first focal length and a second focal length and methods for sighting

Abstract

Sighting optics include a front sight and a rear sight positioned in a spaced-apart relation. The rear sight includes an optical element having a first focal length and a second focal length. The first focal length is selected so that it is about equal to a distance separating the optical element and the front sight and the second focal length is selected so that it is about equal to a target distance. The optical element thus brings into simultaneous focus for a user images of the front sight and the target.

Inventors:
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176434
Patent Number(s):
8,000,010
Application Number:
11/831,581
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING

Citation Formats

Crandall, David Lynn. Sighting optics including an optical element having a first focal length and a second focal length and methods for sighting. United States: N. p., 2011. Web.
Crandall, David Lynn. Sighting optics including an optical element having a first focal length and a second focal length and methods for sighting. United States.
Crandall, David Lynn. Tue . "Sighting optics including an optical element having a first focal length and a second focal length and methods for sighting". United States. https://www.osti.gov/servlets/purl/1176434.
@article{osti_1176434,
title = {Sighting optics including an optical element having a first focal length and a second focal length and methods for sighting},
author = {Crandall, David Lynn},
abstractNote = {Sighting optics include a front sight and a rear sight positioned in a spaced-apart relation. The rear sight includes an optical element having a first focal length and a second focal length. The first focal length is selected so that it is about equal to a distance separating the optical element and the front sight and the second focal length is selected so that it is about equal to a target distance. The optical element thus brings into simultaneous focus for a user images of the front sight and the target.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}

Patent:

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