October 30, 2006

Pacific Advanced Technology Introduces New Concept for
Small Infrared Spectral Imaging Sensors for Detection of
Chemical and Biological Warfare Agents

Allows for Rapid Detection, Identification and False Alarm Reduction of Chemical/Biological Warfare Agents in a Small Rugged Sensor

Santa Barbara, CA - October 30, 2006 - Pacific Advanced Technology, a privately held high
tech company that addresses critical needs of the defense industry with innovative infrared spectral
imaging systems, announced that Michele Hinnrichs, President and CEO, and Dr. Neelam Gupta
from the U.S. Army Research Laboratory, presented a paper titled “Lenslet Arrays for Simultaneous
Infrared Multi-Spectral Imaging of CB Targets” at the 7th Annual Joint Standoff Detection for
Chemical and Biological Defense Conference.

The presentation addressed work performed under an MDA Phase II SBIR program where an
infrared multi-spectral sensor using diffractive optical lenslet arrays was developed. Management
believes this is the only sensor developed to combine the use of diffractive optic lenslet arrays in
conjunction with infrared focal plane arrays enabling a sensor with no moving parts to
simultaneously image a scene in multi-spectral bands. Advantages of this new technique include:

  • Use of diffractive optic lenslet arrays in conjunction with infrared focal plane arrays allows for
    rapid detection, identification and false alarm reduction of chemical/biological warfare agents
  • Lenslet array becomes an integral part of the focal plane array allowing for a micro sensor that
    can be easily portable or fly on DARPA developed micro unmanned aerial vehicles
  • Absence of moving parts allows for a small, rugged sensor
  • Allows for the specific spectral tuning of bands at time of manufacture
  • Can be used for standoff detection of specific Chemical and Biological agents

A copy of the paper, which describes the design of the lenslet array as well as the focal plane array
integration, is available from the Company upon request by contacting Michele Hinnrichs at, and will also be posted on the Company website at

Joint Conference for Standoff Detection for Chemical and Biological Defense
The conference is organized by the Joint Science and Technology Office in cooperation with the
Joint Program Executive Office for Chemical and Biological Defense, Joint Requirements Office,
U.S. Army, U.S. Navy, U.S. Air Force, U.S. Marine Corps and other CB organizations. The overall
objective is to bring together operational and material developers and practitioners for a review of
the state-of-the-art science and technology of chemical and biological standoff
detection/identification and related activities. The results of this conference, along with critical CB
standoff detection assessments currently being conducted by the Joint Nuclear, Biological and
Chemical Defense community, will serve as the basis of a comprehensive Joint Department of
Defense program strategy for the development of the next generation of detection standoff system
concepts. Additional details can be found at

About Dr. Neelam Gupta
Dr. Neelam Gupta is a senior research scientist in the Sensors and Electron Devices Directorate of
the Army Research Laboratory. The Army Research Laboratory (ARL) ( is
the Army’s corporate basic and applied research laboratory. The Army relies on the ARL Team for
scientific discoveries, technologic advances, and analyses to provide warfighters with capabilities to
succeed on the battlefield. Dr. Gupta holds a Ph.D. in physics. She has developed a number of
hyperspectral imagers from UV to long wave IR using acousto-optic tunable filters (AOTFs), as well
as a dual band infrared hyperspectral imager using diffractive optics. Her ongoing research is in the
area of development and application of AOTFs for tunable filters for hyperspectral and polarization
imaging, as well as for the detection of chemical and biological agents. She has authored over 120
technical papers and reports and holds three U.S. patents.

About Pacific Advanced Technology
Pacific Advanced Technology, Inc. (PAT) ( was established in 1988 to address the
advanced technology needs of government agencies and private industry in the areas of electronics
and electro-optic sensor technology. PAT has established an outstanding reputation for high quality
work, in-depth capability, and successful solutions to problems associated with highly complex
advanced technology. PAT has specialized expertise in the research and development of
hyperspectral infrared imaging sensor systems for defense and homeland security applications.
Most recently PAT has been focused in the area of detection of Improvised Explosive Devices
(IED’s) including truck bomb, roadside bombs and suicide bombs. In addition, PAT has done
extensive research and product development for chemical and biological warfare detection.

Gas Imaging Technology, (GIT) ( a wholly-owned subsidiary of PAT has an
exclusive worldwide license for products for applications in safety, environmental monitoring and
process control used by oil, gas, chemical, power and manufacturing industries for gas imaging and
analysis. More than $14 million has been invested in the development of the PAT technologies
underlying the Sherlock gas imaging and analysis systems. A substantial portion of this funding
came from various military, federal and commercial sources including the US Army, US Navy, US Air
Force, Missile Defense Agency, DARPA, Department of Energy, State of California, Gas Research
Institute, BP, Eni and Shell Global Solutions.

For More Information Contact:

Company Contact

Army Research Laboratory

Investor & Public Relations

Michele Hinnrichs

Dr. Neelam Gupta

Harvey Goralnick