120/230 volts 50/60 hz; utilizes spherical projection to provide direct registration of absolute target brightness of 31.5 asb and sphere luminosity of 1000 asb on a 30 cm radius projection hemisphere surface; spring-balanced, center posted table, with precise balance for instrument weight; contains a telescope with magnification not less than 1.85x; adjustable target sizes of 64, 16, 4, 1/4 and 1/16 sq mm with three built-in gray flilters having relative light intensity levels ranged from 0.0315 to 1.00; three filter caps attachment with red, green and blue color each; chin adjustment range: vertically-in excess of 80 mm
No other part numbers with same form, fit, and function found.
An apparatus for determining the extent of the peripheral visual field on a curved surface.
Classification: Other ophthalmic instruments and appliances and parts and accessories
NSN 5915-00-097-7050
NSN 6650-01-094-6876
NSN 6320-01-039-5891
NSN 2925-00-066-9700
NSN 2925-00-275-1807
NSN 5915-01-176-6635
NSN 5975-01-492-5505
NSN 5920-01-487-3700
NSN 5998-01-141-0026
NSN 5915-00-111-4296
NSN 2925-01-139-7098
NSN 5915-01-530-7427