BE805514A - Reticule a cristaux liquides a commande numerique - Google Patents

Reticule a cristaux liquides a commande numerique

Info

Publication number
BE805514A
BE805514A BE2053101A BE2053101A BE805514A BE 805514 A BE805514 A BE 805514A BE 2053101 A BE2053101 A BE 2053101A BE 2053101 A BE2053101 A BE 2053101A BE 805514 A BE805514 A BE 805514A
Authority
BE
Belgium
Prior art keywords
liquid crystal
digital control
control liquid
crystal reticle
reticle
Prior art date
Application number
BE2053101A
Other languages
English (en)
Inventor
R P Farnsworth
L W Hill
S-Y Wong
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of BE805514A publication Critical patent/BE805514A/fr

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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/32—Fiducial marks and measuring scales within the optical system

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
BE2053101A 1972-10-02 1973-10-01 Reticule a cristaux liquides a commande numerique BE805514A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29397872A 1972-10-02 1972-10-02

Publications (1)

Publication Number Publication Date
BE805514A true BE805514A (fr) 1974-02-01

Family

ID=23131366

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2053101A BE805514A (fr) 1972-10-02 1973-10-01 Reticule a cristaux liquides a commande numerique

Country Status (10)

Country Link
JP (1) JPS4973161A (fr)
BE (1) BE805514A (fr)
CA (1) CA993695A (fr)
DE (1) DE2347788B2 (fr)
FR (1) FR2201482B1 (fr)
GB (1) GB1406569A (fr)
IL (1) IL43175A (fr)
IT (1) IT1000428B (fr)
NL (1) NL161876C (fr)
SE (1) SE389927B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722018C2 (de) * 1977-05-14 1983-12-08 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Flüssigkristallblende
GB2061544B (en) * 1979-10-19 1983-05-05 Marconi Co Ltd Introducing aiming mark into a sight
FR2656078B1 (fr) * 1989-12-20 1994-05-06 Etat Francais Delegue Armement Lunette de visee pour vehicule de combat.

Also Published As

Publication number Publication date
NL161876C (nl) 1980-03-17
SE389927B (sv) 1976-11-22
FR2201482A1 (fr) 1974-04-26
CA993695A (en) 1976-07-27
DE2347788B2 (de) 1976-11-18
DE2347788A1 (de) 1974-05-16
FR2201482B1 (fr) 1977-05-27
NL161876B (nl) 1979-10-15
IL43175A0 (en) 1974-01-14
GB1406569A (en) 1975-09-17
IT1000428B (it) 1976-03-30
IL43175A (en) 1975-12-31
JPS4973161A (fr) 1974-07-15
NL7313567A (fr) 1974-04-04

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: HUGHES AIRCRAFT CY

Effective date: 19891031