GB609615A - Improvements in the construction of projection and photographic lens systems - Google Patents

Improvements in the construction of projection and photographic lens systems

Info

Publication number
GB609615A
GB609615A GB843246A GB843246A GB609615A GB 609615 A GB609615 A GB 609615A GB 843246 A GB843246 A GB 843246A GB 843246 A GB843246 A GB 843246A GB 609615 A GB609615 A GB 609615A
Authority
GB
United Kingdom
Prior art keywords
plates
lens systems
projection
plane
lens
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB843246A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to GB843246A priority Critical patent/GB609615A/en
Publication of GB609615A publication Critical patent/GB609615A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

609,615. Lens systems. BUDDEN, R. G., and BLACKMORE, L. March 19, 1946, No. 8432. [Class 97 (i)] To correct, at least partially, zonal aberrations, a photographic or projection lens has disposed coaxially therewith and between its front surface and its focal plane one or more plane, parallel sided circular or annular zone plates of chosen dimensions and refractive index. The plates may be connected to a supporting plate or to the plane surface of a lens, and may correct spherical or comatic aberration or both. Numerical data are given for the cemented doublet shown, having cemented thereto zone plates P2, P3, P4, the latter two having the same refractive index. In another example, plates P2, P4 are omitted and in a third example the plates P3 and P4 are omitted.
GB843246A 1946-03-19 1946-03-19 Improvements in the construction of projection and photographic lens systems Expired GB609615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB843246A GB609615A (en) 1946-03-19 1946-03-19 Improvements in the construction of projection and photographic lens systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB843246A GB609615A (en) 1946-03-19 1946-03-19 Improvements in the construction of projection and photographic lens systems

Publications (1)

Publication Number Publication Date
GB609615A true GB609615A (en) 1948-10-05

Family

ID=9852382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB843246A Expired GB609615A (en) 1946-03-19 1946-03-19 Improvements in the construction of projection and photographic lens systems

Country Status (1)

Country Link
GB (1) GB609615A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244073A (en) * 1961-09-19 1966-04-05 Optische Ind De Oude Delft Nv Centered optical mirror system having finite conjegates
US3287728A (en) * 1963-05-07 1966-11-22 Atlas David Zoned radiant energy reflector and antenna having a glory ray and axial ray in phase at the focal point
US3729253A (en) * 1971-05-28 1973-04-24 Western Electric Co Optical system comprising a single element having a continuously varying index of refraction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244073A (en) * 1961-09-19 1966-04-05 Optische Ind De Oude Delft Nv Centered optical mirror system having finite conjegates
US3287728A (en) * 1963-05-07 1966-11-22 Atlas David Zoned radiant energy reflector and antenna having a glory ray and axial ray in phase at the focal point
US3729253A (en) * 1971-05-28 1973-04-24 Western Electric Co Optical system comprising a single element having a continuously varying index of refraction

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