FR2103904A5 - - Google Patents

Info

Publication number
FR2103904A5
FR2103904A5 FR7128407A FR7128407A FR2103904A5 FR 2103904 A5 FR2103904 A5 FR 2103904A5 FR 7128407 A FR7128407 A FR 7128407A FR 7128407 A FR7128407 A FR 7128407A FR 2103904 A5 FR2103904 A5 FR 2103904A5
Authority
FR
France
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
FR7128407A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR2103904A5 publication Critical patent/FR2103904A5/fr
Expired 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)
FR7128407A 1970-08-04 1971-08-03 Expired FR2103904A5 (https=)

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
FR2103904A5 true FR2103904A5 (https=) 1972-04-14

Family

ID=4376247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7128407A Expired FR2103904A5 (https=) 1970-08-04 1971-08-03

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
CH527478A (de) 1972-08-31
GB1304149A (https=) 1973-01-24
DE2138823A1 (de) 1972-02-10

Similar Documents

Publication Publication Date Title
FR2105579A5 (https=)
DK129446C (https=)
FR2109036A5 (https=)
FI51640B (https=)
FR2100098A5 (https=)
FR2101805A5 (https=)
FR2098948A5 (https=)
FR2084966A5 (https=)
DK141228C (https=)
FR2101243A1 (https=)
FR2098290B1 (https=)
FR2104841A1 (https=)
FR2099629A1 (https=)
FR2085208A1 (https=)
FR2106535B1 (https=)
FR2084595A5 (https=)
FR2085252A1 (https=)
FR2098377B1 (https=)
FR2085134A5 (https=)
FR2106399A2 (https=)
FR2097886A5 (https=)
FR2097908A5 (https=)
FI52188B (https=)
FR2106429B2 (https=)
FR2104737A1 (https=)

Legal Events

Date Code Title Description
ST Notification of lapse