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NCJRS Celebrates National Library Week April 12-18

National Library Week

Started in 1958, National Library Week is a nationwide observance celebrated by all types of libraries - including the NCJRS Virtual Library. NCJRS invites you to explore the breadth and scope of the NCJRS Virtual Library collection and services. With more than 220,000 collection documents and 60,000 online resources, including all known Office of Justice Programs works, it is one of the world’s largest criminal justice special collections.

We encourage your Feedback. Tell us how you use the NCJRS Virtual Library and Abstracts Database, how you access the collection, and any ways we can improve our services.

NCJRS Abstract

The document referenced below is part of the NCJRS Library collection.
To conduct further searches of the collection, visit the NCJRS Abstracts Database.

How to Obtain Documents
NCJ Number: NCJ 189571     Find in a Library
Title: Visual Effects Assessment of the Green Laser-Baton Illuminator (GLBI)
  Document URL: PDF 
Author(s): Richard Dennis ; James Harrison ; Wallace Mitchell ; Douglas Apsey ; Steven Cora ; John Williams
Corporate Author: US Air Force Research Laboratory
United States of America
Date Published: 05/2001
Page Count: 23
  Annotation: This report presents a visual effects assessment of the green laser-baton illuminator.
Abstract: The Green Laser-Baton Illuminator (GLBI) was developed by LE Systems Inc., of Glastonbury, CT, and is the first non-lethal technology laser illuminator to incorporate a green (532 nm) laser. Green laser light is attractive because it is 8.27 times more sensitive to the eye during the day than red (650 nm) light. The GLBI has an eye hazard zone of 1.4 m and then becomes very eye safe because of a large beam divergence. AFRL/HEDO was employed by the National Institute of Justice to measure the GLBI laser beam characteristics and to write a human use protocol to collect GLBI effectiveness data. Effectiveness tests included: daytime visibility thresholds, glare source effects on a vehicle operator, flashblindness determination, and the effect of GLBI on night vision goggle (NVG) wear. The GLBI did not perform well as a daytime tagging device but worked well as a nighttime glare source. Although visible to NVG, the GLBI is much more covert to NVG than red illuminators. The most essential improvements to GLBI would be to miniaturize the device with a laser diode design and to homogenize the beam profile. Notes, figures, tables, references, appendix
Main Term(s): Science and Technology
Index Term(s): Surveillance equipment ; Night vision devices ; Less Lethal/ Nonlethal Weapons ; Lighting ; Police equipment ; Equipment ; Evaluative research ; Equipment evaluation ; NIJ final report
Sponsoring Agency: National Institute of Justice (NIJ)
US Department of Justice
Office of Justice Programs
United States of America
Grant Number: 98-DT-CX-A040
Sale Source: NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America

US Air Force Research Laboratory
3550 Aberdeen Avenue SE
Kirtland AFB, NM 87117
United States of America
Type: Report (Technical)
Country: United States of America
Language: English
Note: Computer disk included
  To cite this abstract, use the following link:

* A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's web site is provided.