FIELD: medical equipment.
SUBSTANCE: device can be used for testing parameter of human viewing system. Device has control board, point light source, counter, indication unit, pulse generator, millisecond pulse generator, first univibrator, second univibrator with controlled pulse duration, third univibrator, OR gate, AND gate, fourth univibrator and flip-flop.
EFFECT: widened functional capabilities.
4 dwg
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Authors
Dates
2006-02-10—Published
2004-09-06—Filed