DE283493C - - Google Patents

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Publication number
DE283493C
DE283493C DENDAT283493D DE283493DA DE283493C DE 283493 C DE283493 C DE 283493C DE NDAT283493 D DENDAT283493 D DE NDAT283493D DE 283493D A DE283493D A DE 283493DA DE 283493 C DE283493 C DE 283493C
Authority
DE
Germany
Prior art keywords
horizon
ring
observer
frustoconical
around
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.)
Active
Application number
DENDAT283493D
Other languages
German (de)
English (en)
Publication of DE283493C publication Critical patent/DE283493C/de
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DENDAT283493D Active DE283493C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE283493C true DE283493C (enrdf_load_stackoverflow)

Family

ID=539054

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT283493D Active DE283493C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE283493C (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229576A (en) * 1962-11-21 1966-01-18 Donald W Rees Hyperbolic ellipsoidal real time display panoramic viewing installation for vehicles
US3251266A (en) * 1961-10-04 1966-05-17 David L Fuller Wide angle objective having nonspherical surfaces
US3283653A (en) * 1963-02-20 1966-11-08 Albert R Tokarzewski Panoramic optical system having an annular afocal lens system
US4043672A (en) * 1975-07-25 1977-08-23 Siemens Aktiengesellschaft Method and apparatus for detecting the direction of incidence of electromagnetic radiation
US4561733A (en) * 1984-04-17 1985-12-31 Recon/Optical, Inc. Panoramic unity vision system
US5233458A (en) * 1991-07-01 1993-08-03 Kaiser Aerospace And Electronics Corporation Method and apparatus to reduce binocular rivalry in a partial overlap binocular display

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251266A (en) * 1961-10-04 1966-05-17 David L Fuller Wide angle objective having nonspherical surfaces
US3229576A (en) * 1962-11-21 1966-01-18 Donald W Rees Hyperbolic ellipsoidal real time display panoramic viewing installation for vehicles
US3283653A (en) * 1963-02-20 1966-11-08 Albert R Tokarzewski Panoramic optical system having an annular afocal lens system
US4043672A (en) * 1975-07-25 1977-08-23 Siemens Aktiengesellschaft Method and apparatus for detecting the direction of incidence of electromagnetic radiation
US4561733A (en) * 1984-04-17 1985-12-31 Recon/Optical, Inc. Panoramic unity vision system
US5233458A (en) * 1991-07-01 1993-08-03 Kaiser Aerospace And Electronics Corporation Method and apparatus to reduce binocular rivalry in a partial overlap binocular display

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