Method for determining and displaying the spacial distribution of a spectral pattern of received light

Patent · Sun Dec 31 23:00:00 EST 1995

OSTI ID:870530

Bennett, Charles L ^[1]

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1. Livermore, CA

An imaging Fourier transform spectrometer (10, 210) having a Fourier transform infrared spectrometer (12) providing a series of images (40) to a focal plane array camera (38). The focal plane array camera (38) is clocked to a multiple of zero crossing occurrences as caused by a moving mirror (18) of the Fourier transform infrared spectrometer (12) and as detected by a laser detector (50) such that the frame capture rate of the focal plane array camera (38) corresponds to a multiple of the zero crossing rate of the Fourier transform infrared spectrometer (12). The images (40) are transmitted to a computer (45) for processing such that representations of the images (40) as viewed in the light of an arbitrary spectral "fingerprint" pattern can be displayed on a monitor (60) or otherwise stored and manipulated by the computer (45).

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5539518
• OSTI ID: 870530
• Country of Publication: United States
• Language: English

Related Subjects

/356/
10
12
18
210
38
40
45
50
60
arbitrary
array
camera
capture
caused
clocked
computer
corresponds
crossing
detected
detector
determining
displayed
displaying
distribution
fingerprint
focal
focal plane
fourier
fourier transform
frame
images
imaging
infrared
infrared spectrometer
laser
light
manipulated
method
mirror
monitor
moving
multiple
occurrences
otherwise
pattern
plane
plane array
processing
providing
rate
ray camera
received
received light
representations
series
spacial
spectral
spectrometer
stored
transform
transform infrared
transmitted
viewed
zero
zero crossing