Electro-optic frame photography with pulsed ruby illumination
By combining the attributes of electro-optic shuttering and pulsed laser illumination in a large format camera system, we have developed a multi-frame image converter camera with a laser illuminator that produces sequential photographs of fast phenomena with very high resolution. The combination of the large size image plane (75 mm), short exposure time per frame (minimum 12--15 ns), and monochromatic laser illumination provides clear, sharp, front-lit images of surfaces and shapes with no degradation by luminous air shocks or motion blur. The unique modular design of the camera and the laser allow for a variety of configurations and applications. The current camera system produces eight independent pictures or four stereo pairs. A Q-switched ruby laser with multiple pulse capability provides individual illumination for each frame. This system has photographed a variety of fast phenomena including the first stereo sequential photographs of the initial formation and early time history of high velocity shaped-charge jets.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6789097
- Report Number(s):
- UCRL-JC-112232; CONF-9209188--7; ON: DE93005819
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420500 -- Engineering-- Materials Testing
440600 -- Optical Instrumentation-- (1990-)
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450000* -- Military Technology
Weaponry
& National Defense
47 OTHER INSTRUMENTATION
CAMERAS
CHEMICAL EXPLOSIVES
DEFORMATION
ELECTRO-OPTICAL EFFECTS
ELECTROMAGNETIC RADIATION
EXPLOSIVES
IMAGE CONVERTERS
IMAGE TUBES
JETS
LASER RADIATION
LASERS
OPTICAL SYSTEMS
PERFORMANCE
PHOTOGRAPHY
PULSE TECHNIQUES
RADIATIONS
RESOLUTION
RUBY LASERS
SHAPED CHARGES
SOLID STATE LASERS
SPATIAL RESOLUTION
TIME RESOLUTION
TIMING PROPERTIES
ULTRAHIGH-SPEED PHOTOGRAPHY