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Laser synchronized high-speed shutter for spectroscopic application

Patent ·
OSTI ID:874846
 [1];  [1];  [2];  [2]
  1. Tracy, CA
  2. Livermore, CA
+ Show Author Affiliations

A fast mechanical shutter, based on rotating chopper wheels, has been designed and implemented to shutter the entrance slit of a spectrograph. This device enables an exposure time of 9 .mu.s to be achieved for a 0.8 mm wide spectrograph entrance slit, achieves 100% transmission in the open state, and an essentially infinite extinction ratio. The device further incorporates chopper wheel position sensing electronics to permit the synchronous triggering of a laser source.

Research Organization:
SANDIA CORP
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Livermore, CA)
Patent Number(s):
US 6472657
OSTI ID:
874846
Country of Publication:
United States
Language:
English

References (3)

High-speed electromechanical shutter for vision research journal September 1998
A fast mechanical shutter for spectroscopic applications journal March 2000
An ultrafast mechanical shutter for X-rays
  • LeGrand, Alan D.; Schildkamp, Wilfried; Blank, Basil
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 275, Issue 2, p. 442-446 https://doi.org/10.1016/0168-9002(89)90722-5
journal February 1989

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