DE2138823A1 - Datenanzeigevorrichtung - Google Patents

Datenanzeigevorrichtung

Info

Publication number
DE2138823A1
DE2138823A1 DE19712138823 DE2138823A DE2138823A1 DE 2138823 A1 DE2138823 A1 DE 2138823A1 DE 19712138823 DE19712138823 DE 19712138823 DE 2138823 A DE2138823 A DE 2138823A DE 2138823 A1 DE2138823 A1 DE 2138823A1
Authority
DE
Germany
Prior art keywords
key
grid
assigned
light
character
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.)
Pending
Application number
DE19712138823
Other languages
German (de)
English (en)
Inventor
Marcel Carouge Ehrat Kurt Dipl Ing Zurich Kuehnlein Werner Oberengstringen Reiser, (Schweiz)
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.)
Novartis AG
Original Assignee
Ciba Geigy 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of DE2138823A1 publication Critical patent/DE2138823A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/1804—Achieving homogeneous illumination
    • G09F2013/1831—Achieving homogeneous illumination using more than one light source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
DE19712138823 1970-08-04 1971-08-03 Datenanzeigevorrichtung Pending DE2138823A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1172170A CH527478A (de) 1970-08-04 1970-08-04 Datenanzeigevorrichtung mit einer Dateneingabetastatur

Publications (1)

Publication Number Publication Date
DE2138823A1 true DE2138823A1 (de) 1972-02-10

Family

ID=4376247

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712138823 Pending DE2138823A1 (de) 1970-08-04 1971-08-03 Datenanzeigevorrichtung

Country Status (4)

Country Link
CH (1) CH527478A (https=)
DE (1) DE2138823A1 (https=)
FR (1) FR2103904A5 (https=)
GB (1) GB1304149A (https=)

Also Published As

Publication number Publication date
FR2103904A5 (https=) 1972-04-14
CH527478A (de) 1972-08-31
GB1304149A (https=) 1973-01-24

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