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1966 INSTRUMENTATION PAPERS abstract Air Force Bedford amount of light amplitude Applied Optics blurring produced CAMBRIDGE RESEARCH LABORATORIES cell CONTRACT OR GRANT earth's atmosphere focal length F focus signal formed after putting granulation Hq AFCRL image blurring image motion inhomogeneities intensity fluctuations intensity pattern JULY 1966 INSTRUMENTATION KEY WORDS knife edge L. G. HANSCOM FIELD LABORATORIES L. G. HANSCOM light falling limb darkening MASSACHUSETTS A Photoelectric meter Monitor for Solar Monitor Solar Telescopes motion and blurring number of elements NUMBER OF PAGES NUMBER OF REFERENCES OAR CRF objective image obtain copies ORIGINATING ACTIVITY photocells Photoelectric Focus photoelectric focus-meter PROJECT NUMBER report number REPORT NUMBER(S REPORT TITLE Reprinted from APPLIED RESEARCH LABORATORIES L. G. rms value schlieren sec of arc simple way simultaneous slit solar disk solar image solar limb Solar Telescopes J.M.BECKERS statistical distribution Sunspot tele telescope objective formed tion TOTAL NUMBER Unclassified Security Classification users shall request