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
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, 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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