CA993695A - Liquid crystal digital reticle - Google Patents

Liquid crystal digital reticle

Info

Publication number
CA993695A
CA993695A CA180,292A CA180292A CA993695A CA 993695 A CA993695 A CA 993695A CA 180292 A CA180292 A CA 180292A CA 993695 A CA993695 A CA 993695A
Authority
CA
Canada
Prior art keywords
liquid crystal
crystal digital
digital reticle
reticle
liquid
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
CA180,292A
Other languages
English (en)
Other versions
CA180292S (en
Inventor
Robert P. Farnsworth
Lowell W. Hill
Shi-Yin Wong
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.)
Raytheon Co
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
Application granted granted Critical
Publication of CA993695A publication Critical patent/CA993695A/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 
    • G02F1/13—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)
CA180,292A 1972-10-02 1973-09-05 Liquid crystal digital reticle Expired CA993695A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA993695A true CA993695A (en) 1976-07-27

Family

ID=23131366

Family Applications (1)

Application Number Title Priority Date Filing Date
CA180,292A Expired CA993695A (en) 1972-10-02 1973-09-05 Liquid crystal digital reticle

Country Status (10)

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

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
BE805514A (fr) 1974-02-01
FR2201482A1 (ja) 1974-04-26
DE2347788B2 (de) 1976-11-18
DE2347788A1 (de) 1974-05-16
FR2201482B1 (ja) 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 (ja) 1974-07-15
NL7313567A (ja) 1974-04-04

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