New High Resolution, Large Format Eight-Frame Image Converter Camera With Ten Nanosecond Exposure Time

D. L. Paisley; J. H. Owren

doi:10.1117/12.967782

1 March 1983 New High Resolution, Large Format Eight-Frame Image Converter Camera With Ten Nanosecond Exposure Time

D. L. Paisley, J. H. Owren

Proceedings Volume 0348, 15th Intl Congress on High Speed Photography and Photonics; (1983) https://doi.org/10.1117/12.967782
Event: 15th International Congress on High Speed Photography and Photonics, 1982, San Diego, United States

Abstract

A new electronic image converter camera has been developed that has high resolution (>20 1p/mm), large format (75 mm diameter) for each frame, and the capability of short (10 nanosecond) exposure times. The camera is designed so that each of eight frames can be pulsed on individually thus permitting variable interframe times within a given event from < 10 nanoseconds to 1 millisecond. Eight separate 75 mm diameter proximity focussed image diodes are aligned on a common optical system using only one objective lens and beamsplitting the optical information to each diode. This technique eliminates any image parallax between frames, but also reduces the amount of light reaching each image diode. This reduced light level at each diode is more than compensated for by the optical gain of the diodes and the fact that each diode is fiber optically coupled to the recording film. The design of the camera permits the optical system for each diode to be independent. This capability allows for an unlimited number of optical arrangements such as: four (4) stereopairs of images, four (4) orthogonal image pairs, or even recording images of eight (8) separate events that must be optically correlated. In general, this type of camera has proven to be extremely versatile in optically recording ultra-high speed events.

Citation Download Citation

D. L. Paisley and J. H. Owren "New High Resolution, Large Format Eight-Frame Image Converter Camera With Ten Nanosecond Exposure Time", Proc. SPIE 0348, 15th Intl Congress on High Speed Photography and Photonics, (1 March 1983); https://doi.org/10.1117/12.967782

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KEYWORDS

Diodes

Cameras

High speed photography

Image resolution

Photography

Explosives

Spatial resolution

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