ny
field tested as a part of this program.
These shu*ters are designed
to prevent or minimize flash blininess, after-imaces, or retinal burns,
Results obtained on animals exposed behind these shutters will be compared with those obtained by other shutters and filter mechanisms,
None of the animale exposed had eves held open by artificial
means,
This introduced the possibility that the eve might be closed
at time zero.
An alarm bel] war eet up to waken animals.
Cameras
focused? on the animals were used to adetormine shutter speed ani to
ascertain whether eyes were open during the time of exposure,
ROSees
An cxamination of the exposed eyes cf the animals revealed a
minimel chorioretinal turn in 2 single rabbit.
Leoted, except by his om blink reflev,
This rabbit was un-
A vieual check of the
equipment at the time of re-entry indicated that it hed functioned pro-
dead at re-entry time,
ROWAT TTA TAS
The presence cf a single sheoriorstinzl infury succcets that the
y
\a
what less than head been calculated, and was quite certainly delivered
f
at amuch slower rate,
The normil
4
Fr
jo
total therm2l energy delivered at the exposure site w s probably some-
blink reflex time as determined in
the laboratory is very nearly coincidornt with the berinnine cf the
second pulse after detonation.
The presence of a sinrle lesion at-
tritutable to the flash does not furnish sufficient data to make any
‘
~-~ 61 -
Based en these conclusions,
S
ev2luation of shutters and filters.