Accession Number:

ADA172175

Title:

Ultra Violet Imager System.

Descriptive Note:

Final rept. Aug 85-Apr 86,

Corporate Author:

PRINCETON SCIENTIFIC INSTRUMENTS KINGSTON NJ

Personal Author(s):

• Lowrance,John L.

Report Date:

1986-04-15

Pagination or Media Count:

44.0

Abstract:

Princeton Scientific Instruments, Inc., has developed for the Air Force Geophysical Laboratory, AFGL, an Ultraviolet Imager to measure the spatial distribution of the UV radiation of missiles. An f2.8, 200 mm focal length Cassigrain telescope optic is followed by a filter wheel containing 5 narrow band UV filters. The optical image is focused onto a 25 mm diameter micro channel plate MCP image intensifier having a solar blind Cs2Te photocathode. Photoelectrons from the photocathode are proximity focused onto the MCP and the MCP output electrons are proximity focused onto a P-20 phosphor. A 17 mm f0.95 lens relays the d25 mm diameter phosphor image onto a CCD interline transfer type solid state image television camera. The television camera output is recorded by a video 34 inch magnetic tape cassette recorder and displayed on a 9 inch television monitor. The UV Imager exposure time can be varied by electronically shuttering the image intensifier from 1 ms to 33 ms, the television camera frame rate. Exposure times, filter wheel position and date are superimposed on the bottom of the video image.

Descriptors:

• *ULTRAVIOLET EQUIPMENT
• *TELEVISION EQUIPMENT
• OUTPUT
• GUIDED MISSILES
• SPATIAL DISTRIBUTION
• POSITION(LOCATION)
• ULTRAVIOLET RADIATION
• RATES
• OPTICAL IMAGES
• ELECTRONS
• IMAGES
• WHEELS
• MONITORS
• FRAMES
• FILTERS
• VIDEO SIGNALS
• MAGNETIC TAPE
• PHOTOCATHODES
• IMAGE INTENSIFIERS(ELECTRONICS)
• PHOTOELECTRONS
• TELEVISION CAMERAS

Subject Categories:

• Ultraviolet Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE