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Title: Lensing duct

Abstract

A lensing duct to condense (intensify) light using a combination of front surface lensing and reflective waveguiding is described. The duct tapers down from a wide input side to a narrow output side, with the input side being lens-shaped and coated with an antireflective coating for more efficient transmission into the duct. The four side surfaces are uncoated, preventing light from escaping by total internal reflection as it travels along the duct (reflective waveguiding). The duct has various applications for intensifying light, such as in the coupling of diode array pump light to solid state lasing materials, and can be fabricated from inexpensive glass and plastic. 3 figures.

Inventors:
;
Issue Date:
OSTI Identifier:
5074743
Patent Number(s):
5307430 A
Application Number:
PPN: US 7-983350
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-076801
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 30 Nov 1992
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; OPTICAL SYSTEMS; DESIGN; SOLID STATE LASERS; OPTICAL PUMPING; LASER RADIATION; LENSES; LIGHT TRANSMISSION; USES; WAVEGUIDES; ELECTROMAGNETIC RADIATION; LASERS; PUMPING; RADIATIONS; 426002* - Engineering- Lasers & Masers- (1990-)

Citation Formats

Beach, R.J., and Benett, W.J. Lensing duct. United States: N. p., 1994. Web.
Beach, R.J., & Benett, W.J. Lensing duct. United States.
Beach, R.J., and Benett, W.J. Tue . "Lensing duct". United States.
@article{osti_5074743,
title = {Lensing duct},
author = {Beach, R.J. and Benett, W.J.},
abstractNote = {A lensing duct to condense (intensify) light using a combination of front surface lensing and reflective waveguiding is described. The duct tapers down from a wide input side to a narrow output side, with the input side being lens-shaped and coated with an antireflective coating for more efficient transmission into the duct. The four side surfaces are uncoated, preventing light from escaping by total internal reflection as it travels along the duct (reflective waveguiding). The duct has various applications for intensifying light, such as in the coupling of diode array pump light to solid state lasing materials, and can be fabricated from inexpensive glass and plastic. 3 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {4}
}