GB450859A - Arrangement for producing a bundle of light composed of parallel rays - Google Patents

Arrangement for producing a bundle of light composed of parallel rays

Info

Publication number
GB450859A
GB450859A GB2350/35A GB235035A GB450859A GB 450859 A GB450859 A GB 450859A GB 2350/35 A GB2350/35 A GB 2350/35A GB 235035 A GB235035 A GB 235035A GB 450859 A GB450859 A GB 450859A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
light
cell
rays
sound
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
GB2350/35A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta 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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB450859A publication Critical patent/GB450859A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/07—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-optical liquids exhibiting Kerr effect

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

450,859. Optical sound - recording apparatus. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Germany. Jan. 24, 1935, No. 2350. Convention date, Jan. 26, 1934. [Class 40 (ii)] [See also Groups XX and XL] A device to be used in conjunction with a source of light for obtaining a bundle of parallel rays consists of a diaphragm or selector which shuts out all rays of light of which the inclination to the optical axis exceeds a certain small value. The diaphragm may, as shown in Fig. 1, consist of two series of thin parallel plates intersecting each other at right-angles, the light being passed through the passages between the sheets and the walls of the passages being blackened. The two sets of plates may be in two separate units through which the light passes in succession, the plates of one unit being disposed at right-angles to those of the other. Alternatively, the diaphragm may be made of a number of thin glass layers separated from each other by blackened surfaces and having polished end faces. In another form the diaphragm consists of a number of coaxial tubes. The device is particularly intended for use in a light-controlling arrangement employing a Kerr cell or piezo-electric crystal, for sound-recording &c. When a piezo-electric crystal cell is used, the diaphragm may be combined directly with the cell by making the cell of a number of layers separated by opaque surfaces. Fig. 6 shows an arrangement including a Kerr cell, designed to occupy a relatively small space when using a long focus condenser, the arrangement including two right-angled prisms 11, 12 made of doubly-refracting material so that they act respectively as polarizer and analyzer. The diaphragm 3 is placed between the condenser 2 and the prism 11 and the Kerr cell 5 is disposed between the prisms 11, 12. The rays leaving the prism 12 are received by a cylindrical lens which focuses them on a slit diaphragm 8 which is imaged by a lens 9 on the image surface 13 which may be a film reel for sound recording.
GB2350/35A 1934-01-26 1935-01-24 Arrangement for producing a bundle of light composed of parallel rays Expired GB450859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE450859X 1934-01-26

Publications (1)

Publication Number Publication Date
GB450859A true GB450859A (en) 1936-07-24

Family

ID=6538451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2350/35A Expired GB450859A (en) 1934-01-26 1935-01-24 Arrangement for producing a bundle of light composed of parallel rays

Country Status (1)

Country Link
GB (1) GB450859A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090877B (en) * 1955-01-10 1960-10-13 Siemens Ag Sollerblende
DE1131906B (en) * 1959-10-30 1962-06-20 Pierre Cibie Use of a diaphragm system made up of a plurality of parallel, thin, opaque lamellas for an optical sighting device
DE1161826B (en) * 1960-11-10 1964-01-30 Edwin A Neugass Arrangement for directional transmission of light using a light guide body
DE1236820B (en) * 1962-06-04 1967-03-16 Douglas Aircraft Co Inc Light filter comprising a number of spaced-apart, grid-like, substantially flat filter elements and method for its manufacture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090877B (en) * 1955-01-10 1960-10-13 Siemens Ag Sollerblende
DE1131906B (en) * 1959-10-30 1962-06-20 Pierre Cibie Use of a diaphragm system made up of a plurality of parallel, thin, opaque lamellas for an optical sighting device
DE1161826B (en) * 1960-11-10 1964-01-30 Edwin A Neugass Arrangement for directional transmission of light using a light guide body
DE1236820B (en) * 1962-06-04 1967-03-16 Douglas Aircraft Co Inc Light filter comprising a number of spaced-apart, grid-like, substantially flat filter elements and method for its manufacture

Similar Documents

Publication Publication Date Title
US2106752A (en) Field divider
US2403733A (en) Stereoscopic optical system
GB394285A (en) Improvements in supplementary devices for optical observation instruments
GB450859A (en) Arrangement for producing a bundle of light composed of parallel rays
US2788707A (en) Projection system for stereoscopic images
US2944464A (en) Anamorphic lens system
US2402216A (en) Means for securing improvements in
US2084309A (en) Photographic lens system
US3926504A (en) Photographic objective
US3218908A (en) Adjustable optical prism field splitter
US2434378A (en) Photographic reversing unit and system for producing reversed images
US2574186A (en) Apparatus for viewing stereoscopic pictures
US2137570A (en) Camera attachment
US2043916A (en) Optical system
US1931228A (en) Optical apparatus for the examination of goffered films
US3029699A (en) Wide angle lens system
SU822126A1 (en) Objective lenz
SU662895A1 (en) Objective lens
SU1390590A1 (en) Reproducing gauss photoobjective
US800516A (en) Photostereoscopic apparatus.
SU945840A1 (en) Photographic lens
GB913921A (en) Improvements relating to viewing devices for x-ray image amplifiers
SU847245A1 (en) Reproduction objective
Wollaston II. A description of a microscopic doublet
GB2091898A (en) Aspheric projection lens system utilizing concave image