A New Production Unit For Optical MTF Recording

Frank G. Back

doi:10.1117/12.946763

1 September 1968 A New Production Unit For Optical MTF Recording

Frank G. Back

Proceedings Volume 0013, Modulation Transfer Function; (1968) https://doi.org/10.1117/12.946763
Event: Modulation Transfer Function, 1968, Boston, United States

Abstract

A production unit of a new, completely self-contained device for measuring optical transfer functions will be demonstrated and explained in detail. Some of the remarkable features are: A simple photocell is employed instead of a photo multiplier because of the high efficiency of the optical track. It has a unique attachment for exact spatial zero frequency measurements. It has a built-in oscilloscope and a recorder capable of taking a complete diagram every 20 seconds. It works with one single electrical frequency of 400 cps and therefore eliminates the higher harmonics without the necessity of a sinusoidal target. The instrument can be operated by a technician without any special optical knowledge.

Citation Download Citation

Frank G. Back "A New Production Unit For Optical MTF Recording", Proc. SPIE 0013, Modulation Transfer Function, (1 September 1968); https://doi.org/10.1117/12.946763

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