GB420565A - Improvements in or relating to optical reflecting devices - Google Patents

Improvements in or relating to optical reflecting devices

Info

Publication number
GB420565A
GB420565A GB7654/34A GB765434A GB420565A GB 420565 A GB420565 A GB 420565A GB 7654/34 A GB7654/34 A GB 7654/34A GB 765434 A GB765434 A GB 765434A GB 420565 A GB420565 A GB 420565A
Authority
GB
United Kingdom
Prior art keywords
angle
prism
generators
roof
plane
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
GB7654/34A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of GB420565A publication Critical patent/GB420565A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Viewfinders (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

420,565. Optical systems. LEITZ GES., E., Optical Works, Wetzlar, Germany. March 10, 1934, No. 7654. Convention date, April 1, 1933. [Class 97 (i)] In an optical reflecting device comprising a pentagonal prism with a roof-edge extension C, D, the extension is arranged with its generators at an angle to the plane of a principal section of the pentagonal prism, and the surface of emergence E is arranged at an angle to the generators of the prism. The angle between the surface E and the generators is equal to the angle between the generators of the roof-edge extension and the plane of a principal section of the pentagonal prism so that rays incident normally on the surface A will, after reflection at the surface B and the roof edge surfaces C, D, emerge normally from the surface E. The prism causes rotation of the image through a small angle in the image plane and avoids the use of a separate prism for this purpose in stereoscopic &c. instruments in which the two partial ray paths are at a small angle to one another. If it is desired to deflect the emergent rays through a further angle, one or more additional prisms, which may be formed integrally with the main prism, are used.
GB7654/34A 1933-04-01 1934-03-10 Improvements in or relating to optical reflecting devices Expired GB420565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE420565X 1933-04-01

Publications (1)

Publication Number Publication Date
GB420565A true GB420565A (en) 1934-12-04

Family

ID=6452469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7654/34A Expired GB420565A (en) 1933-04-01 1934-03-10 Improvements in or relating to optical reflecting devices

Country Status (1)

Country Link
GB (1) GB420565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723842A (en) * 1986-05-10 1988-02-09 J. D. Moller Optische Werke Gmbh Stereoscopic surgery microscope for eye surgery with selective image reversal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723842A (en) * 1986-05-10 1988-02-09 J. D. Moller Optische Werke Gmbh Stereoscopic surgery microscope for eye surgery with selective image reversal

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