[go: up one dir, main page]

GB554024A - Improvements in or relating to optical systems comprising a correction element - Google Patents

Improvements in or relating to optical systems comprising a correction element

Info

Publication number
GB554024A
GB554024A GB37842A GB37842A GB554024A GB 554024 A GB554024 A GB 554024A GB 37842 A GB37842 A GB 37842A GB 37842 A GB37842 A GB 37842A GB 554024 A GB554024 A GB 554024A
Authority
GB
United Kingdom
Prior art keywords
optical systems
relating
correction element
philips
gloeilampenfabrieken
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
GB37842A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB37842A priority Critical patent/GB554024A/en
Publication of GB554024A publication Critical patent/GB554024A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0884—Catadioptric systems having a pupil corrector
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

554,024. Optical systems. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Jan. 9, 1942, No. 378. [Class 97 (i)] The subject-matter of this Specification is identical with that described in Specification 602,576. Reference has been directed by the Comptroller to Specification 546,307.
GB37842A 1942-01-09 1942-01-09 Improvements in or relating to optical systems comprising a correction element Expired GB554024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB37842A GB554024A (en) 1942-01-09 1942-01-09 Improvements in or relating to optical systems comprising a correction element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37842A GB554024A (en) 1942-01-09 1942-01-09 Improvements in or relating to optical systems comprising a correction element

Publications (1)

Publication Number Publication Date
GB554024A true GB554024A (en) 1943-06-16

Family

ID=9703360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37842A Expired GB554024A (en) 1942-01-09 1942-01-09 Improvements in or relating to optical systems comprising a correction element

Country Status (1)

Country Link
GB (1) GB554024A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448699A (en) * 1945-10-16 1948-09-07 Optische Ind De Oude Delft Nv Schmidt type image former with negative meniscus lens spherical aberration corrector
US2449345A (en) * 1941-07-12 1948-09-14 Hartford Nat Bank & Trust Co Schmidt type optical system with opaque diaphragm
US2492461A (en) * 1941-07-07 1949-12-27 Optische Ind De Oude Delft Nv Corrected schmidt type optical system
US2571657A (en) * 1945-04-27 1951-10-16 Eastman Kodak Co Catadioptric lens system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492461A (en) * 1941-07-07 1949-12-27 Optische Ind De Oude Delft Nv Corrected schmidt type optical system
US2449345A (en) * 1941-07-12 1948-09-14 Hartford Nat Bank & Trust Co Schmidt type optical system with opaque diaphragm
US2571657A (en) * 1945-04-27 1951-10-16 Eastman Kodak Co Catadioptric lens system
US2448699A (en) * 1945-10-16 1948-09-07 Optische Ind De Oude Delft Nv Schmidt type image former with negative meniscus lens spherical aberration corrector

Similar Documents

Publication Publication Date Title
GB553466A (en) Improvements in or relating to cathode-ray tubes
GB554024A (en) Improvements in or relating to optical systems comprising a correction element
GB549727A (en) Improvements in or relating to electric high-pressure metal-vapour discharge tubes
GB552612A (en) Improvements in or relating to cathode-ray tubes
GB551364A (en) Improvements in or relating to devices for the stereophonic transmission and reproduction of sound
GB548003A (en) Improvements in or relating to kinematograph projectors
GB611468A (en) Improvements in shielded high-frequency cables
GB547645A (en) Improvements in or relating to electric discharge tubes
GB551016A (en) Improvements in or relating to flash-light lamps
GB555150A (en) Improvements in or relating to tuning devices for superheterodyne receivers
GB550644A (en) Improvements in or relating to optical elements
GB550909A (en) Improvements in or relating to devices for measuring direct-current voltages of small value
GB545106A (en) Improvements in or relating to cinematograph projection apparatus
GB548651A (en) Improvements in or relating to the manufacture of ceramic insulators
GB546376A (en) Improvements in or relating to electric discharge tubes
GB552403A (en) Improvements in or relating to means for tuning wireless sets
GB551226A (en) Improvements in or relating to electric discharge tubes
GB547646A (en) Improvements in or relating to gas filled electric discharge tubes
GB550958A (en) Improvements in or relating to superheterodyne receiving sets
GB545238A (en) Improvements in or relating to dry-shaving apparatus
GB548606A (en) Improvements in or relating to electric insulators
GB556461A (en) Improvements in or relating to electron discharge tubes
GB549275A (en) Improvements in or relating to electric discharge tubes
GB549996A (en) Improvements in or relating to devices for oscillographic electrical or mechanical processes
GB548475A (en) Improvements in or relating to superheterodyne receiving arrangements