GB389773A - Improvements in telescopes for observing strong sources of light - Google Patents

Improvements in telescopes for observing strong sources of light

Info

Publication number
GB389773A
GB389773A GB32106/32A GB3210632A GB389773A GB 389773 A GB389773 A GB 389773A GB 32106/32 A GB32106/32 A GB 32106/32A GB 3210632 A GB3210632 A GB 3210632A GB 389773 A GB389773 A GB 389773A
Authority
GB
United Kingdom
Prior art keywords
telescopes
light
strong sources
zeiss
telescope
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
GB32106/32A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB389773A publication Critical patent/GB389773A/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
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Telescopes (AREA)

Abstract

389,773. Telescopes. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Nov. 14, 1932, No. 32106. Convention date, Nov. 26, 1931. [Class 97 (i).] In a telescope for observing strong sources of light, at least one surface of an optical member of the telescope is frosted so that some of the rays pass through the said surface and some are diffusely dispersed. Preferably the frosting is formed on the surface e of a converging lens d which can be inserted through a slot in the tube a so as to be included at will in the optical system, this lens having such thickness and power that the position of the image plane of the objective b is not altered when it is inserted in the ray path.
GB32106/32A 1931-11-26 1932-11-14 Improvements in telescopes for observing strong sources of light Expired GB389773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE389773X 1931-11-26

Publications (1)

Publication Number Publication Date
GB389773A true GB389773A (en) 1933-03-23

Family

ID=6371470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32106/32A Expired GB389773A (en) 1931-11-26 1932-11-14 Improvements in telescopes for observing strong sources of light

Country Status (1)

Country Link
GB (1) GB389773A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873572A1 (en) 2006-06-29 2008-01-02 Carl Zeiss Optronics GmbH Device for transmitting optical signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873572A1 (en) 2006-06-29 2008-01-02 Carl Zeiss Optronics GmbH Device for transmitting optical signals

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