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Title: Beam forming and collection lens assembly for laser scanner system

Abstract

This patent describes a lens assembly for a laser instrument of the kind used to detect light reflected from a target which is spaced from the laser instrument, the lens assembly comprising: a lens having an optical axis; light detector means spaced from the lens; first optical means attached to the lens and aligned with the optical axis thereof for receiving a laser light beam being transmitted to the lens at an angle off the optical axis thereof and for reflecting the received laser beam onto the optical axis for transmission through the lens toward the target; second optical means formed on the lens at the optical axis and on one side thereof adjacent to the first optical means for receiving the reflected laser beam and expanding the same within the lens as it is transmitted therethrough; third optical means formed on the lens at the optical axis and on an opposite side thereof from the second optical means for converging and focussing the expanded laser beam at a substantial distance from the lens as it is transmitted therefrom; fourth optical means formed on the lens about the optical axis and on the opposite side thereof and about the thirdmore » optical means thereon for collecting within the lens the light reflected from the target and transmitting the collected light therethrough; and fifth optical means formed on the lens about the optical axis and on the one side thereof opposite from the fourth optical means and about the second optical means thereon for imaging the collected light along the optical axis of the lens to the light detector means.« less

Inventors:
Publication Date:
OSTI Identifier:
6224297
Patent Number(s):
US 4786798
Assignee:
Spectra-Physics, Inc., San Jose, CA
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 18 Jun 1987
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; LASERS; LENSES; DESIGN; BEAM OPTICS; DETECTION; OPTICAL SYSTEMS; REFLECTION; VISIBLE RADIATION; ELECTROMAGNETIC RADIATION; RADIATIONS; 420300* - Engineering- Lasers- (-1989)

Citation Formats

Lonsdale, R J. Beam forming and collection lens assembly for laser scanner system. United States: N. p., 1988. Web.
Lonsdale, R J. Beam forming and collection lens assembly for laser scanner system. United States.
Lonsdale, R J. Tue . "Beam forming and collection lens assembly for laser scanner system". United States.
@article{osti_6224297,
title = {Beam forming and collection lens assembly for laser scanner system},
author = {Lonsdale, R J},
abstractNote = {This patent describes a lens assembly for a laser instrument of the kind used to detect light reflected from a target which is spaced from the laser instrument, the lens assembly comprising: a lens having an optical axis; light detector means spaced from the lens; first optical means attached to the lens and aligned with the optical axis thereof for receiving a laser light beam being transmitted to the lens at an angle off the optical axis thereof and for reflecting the received laser beam onto the optical axis for transmission through the lens toward the target; second optical means formed on the lens at the optical axis and on one side thereof adjacent to the first optical means for receiving the reflected laser beam and expanding the same within the lens as it is transmitted therethrough; third optical means formed on the lens at the optical axis and on an opposite side thereof from the second optical means for converging and focussing the expanded laser beam at a substantial distance from the lens as it is transmitted therefrom; fourth optical means formed on the lens about the optical axis and on the opposite side thereof and about the third optical means thereon for collecting within the lens the light reflected from the target and transmitting the collected light therethrough; and fifth optical means formed on the lens about the optical axis and on the one side thereof opposite from the fourth optical means and about the second optical means thereon for imaging the collected light along the optical axis of the lens to the light detector means.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {11}
}