1 September 1968 A New Production Unit For Optical MTF Recording
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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.
© (1968) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frank G. Back, "A New Production Unit For Optical MTF Recording", Proc. SPIE 0013, Modulation Transfer Function, (1 September 1968); doi: 10.1117/12.946763; https://doi.org/10.1117/12.946763
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