Methods of and apparatus for recording images occurring just pri

Details Methods of and apparatus for recording images occurring just pri Methods of and apparatus for recording images occurring just pri

1991-12-05

1994-04-05

Reinhart, Mark J.

Recorders

Light or beam recording

Including record receiver or handling means therefor

359900, H04N 121

Patent

active

053009550

ABSTRACT:
An apparatus and a method are disclosed for recording images of events in a medium wherein the images that are recorded are of conditions existing just prior to and during the occurrence of an event that triggers recording of these images. The apparatus and method use an optical delay path that employs a spherical focusing mirror facing a circular array of flat return mirrors around a central flat mirror. The image is reflected in a symmetric pattern which balances astigmatism which is created by the spherical mirror. Delays on the order of hundreds of nanoseconds are possible.

REFERENCES:
patent: 3729249 (1973-04-01), Habegger et al.
patent: 3774986 (1973-11-01), Bourgoin et al.

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