BE726697A - - Google Patents

Info

Publication number
BE726697A
BE726697A BE726697DA BE726697A BE 726697 A BE726697 A BE 726697A BE 726697D A BE726697D A BE 726697DA BE 726697 A BE726697 A BE 726697A
Authority
BE
Belgium
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to BE726697 priority Critical
Publication of BE726697A publication Critical patent/BE726697A/xx

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4272Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path
    • G02B27/4277Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path being separated by an air space
BE726697D 1969-01-09 1969-01-09 BE726697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE726697 1969-01-09

Publications (1)

Publication Number Publication Date
BE726697A true BE726697A (en) 1969-06-16

Family

ID=3854086

Family Applications (1)

Application Number Title Priority Date Filing Date
BE726697D BE726697A (en) 1969-01-09 1969-01-09

Country Status (2)

Country Link
BE (1) BE726697A (en)
GB (1) GB1300912A (en)

Also Published As

Publication number Publication date
GB1300912A (en) 1972-12-29

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