DEVICE FOR DETERMINING BANDWIDTH OF VISION SYSTEM SPATIAL-FREQUENCY CHANNEL Russian patent published in 2005 - IPC

Abstract RU 2252690 C1

FIELD: medical equipment.

SUBSTANCE: device has two toggle switches, three switches, five gates, shift register, mode switches, two flip-flops, two NOT gates, linearly changing voltage oscillator, memorizing analog unit, analog multiplexer, five univibrators, two OR gates, voltage-to-frequency converter, light pulse source, second pulse oscillator, calculator, average meaning calculator, counter, two indication units.

EFFECT: simplified procedure of determining bandwidth.

3 dwg

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RU 2 252 690 C1

Authors

Lezhnina T.A.

Rozhentsov V.V.

Dates

2005-05-27—Published

2003-09-18—Filed