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:
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176434
- Patent Number(s):
- 8000010
- Application Number:
- 11/831,581
- Assignee:
- Battelle Energy Alliance, LLC (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F41 - WEAPONS F41G - WEAPON SIGHTS
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- 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 = {Tue Aug 16 00:00:00 EDT 2011},
month = {Tue Aug 16 00:00:00 EDT 2011}
}
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Works referenced in this record:
Resolving Power of a Zone Plate*
journal, January 1967
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- Journal of the Optical Society of America, Vol. 57, Issue 5
Zone Plates and Their Aberrations
journal, January 1972
- Young, M.
- Journal of the Optical Society of America, Vol. 62, Issue 8, p. 972-976