Optics: measuring and testing – Range or remote distance finding – With photodetection
Reexamination Certificate
2008-06-24
2008-06-24
Alsomiri, Isam (Department: 3662)
Optics: measuring and testing
Range or remote distance finding
With photodetection
C250S252100
Reexamination Certificate
active
07391504
ABSTRACT:
A cost considered arrangement for evaluating local illumination interference with operation of a night vision apparatus in for example the confines of an illumination inclusive aircraft cockpit. The evaluation is especially applicable to identifying interference between aircraft instrument lighting having infrared content for example, and night vision apparatus operation in the aircraft. The evaluation is cost is limited by use of a common household lamp night vision apparatus source calibrated with a common light measuring instrument operated at close range and with modification of the measured illumination through mathematical manipulation of the source operating distance to achieve the low light levels needed for night vision apparatus operation. A standard visual acuity chart and multiple operator interpretations of the chart resolutions achieved are included.
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Pinkus Alan R.
Task Harry L.
AFMCLO/JAZ
Alsomiri Isam
Hollins Gerald B.
The United States of America as represented by the Secretary of
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