NL7804801A - VOLTAGE METER WITH LIGHT EMITTING DIODES. - Google Patents

VOLTAGE METER WITH LIGHT EMITTING DIODES.

Info

Publication number
NL7804801A
NL7804801A NL7804801A NL7804801A NL7804801A NL 7804801 A NL7804801 A NL 7804801A NL 7804801 A NL7804801 A NL 7804801A NL 7804801 A NL7804801 A NL 7804801A NL 7804801 A NL7804801 A NL 7804801A
Authority
NL
Netherlands
Prior art keywords
light emitting
emitting diodes
voltage meter
meter
voltage
Prior art date
Application number
NL7804801A
Other languages
Dutch (nl)
Original Assignee
Chronolog Syst
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 Chronolog Syst filed Critical Chronolog Syst
Publication of NL7804801A publication Critical patent/NL7804801A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
    • G01R13/405—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Measurement Of Current Or Voltage (AREA)
NL7804801A 1977-05-03 1978-05-03 VOLTAGE METER WITH LIGHT EMITTING DIODES. NL7804801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1847877A GB1568576A (en) 1977-05-03 1977-05-03 Electrical circuit means for use in analogue display

Publications (1)

Publication Number Publication Date
NL7804801A true NL7804801A (en) 1978-11-07

Family

ID=10113123

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7804801A NL7804801A (en) 1977-05-03 1978-05-03 VOLTAGE METER WITH LIGHT EMITTING DIODES.

Country Status (4)

Country Link
DE (1) DE2819472A1 (en)
FR (1) FR2389956A1 (en)
GB (1) GB1568576A (en)
NL (1) NL7804801A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186135B (en) * 1986-02-03 1989-11-01 Plessey Co Plc Analogue to digital converter
CN107561330B (en) * 2017-10-11 2023-12-08 绍兴职业技术学院 20-level indicating circuit of multiple input sources

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791399A (en) * 1971-12-10 1973-05-14 Schlumberger Compteurs ELECTRONIC DEVICE INDICATOR
US3771015A (en) * 1972-02-09 1973-11-06 Beckman Instruments Inc Light-emitting diode display
AT342123B (en) * 1974-02-05 1978-03-10 Siemens Ag Oesterreich CIRCUIT FOR A CHAIN OF LIGHTING DIODES USING AS A DISPLAY UNIT
DE2408062C3 (en) * 1974-02-20 1985-01-24 Deuta-Werke Vorm. Deutsche Tachometerwerke Gmbh, 5070 Bergisch Gladbach Method and device for displaying measured values with the aid of display elements arranged in rows

Also Published As

Publication number Publication date
DE2819472A1 (en) 1978-12-14
GB1568576A (en) 1980-06-04
FR2389956A1 (en) 1978-12-01

Similar Documents

Publication Publication Date Title
NL7811796A (en) LIGHT REFLECTOR.
SE7812185L (en) LIGHT ACTIVATED LIGHT EMITTING DEVICE
SE7800842L (en) ELECTROLUMINESCENT LAMP
NL7802314A (en) CANDLE LIGHT.
DD136781A1 (en) LIGHT-EMITTING SEMICONDUCTOR
FR2287109A1 (en) LIGHT EMITTING DIODE
NL7803262A (en) MATERIAL COMPOSITE WITH LIGHT HARDABLE.
NL7811528A (en) FLASH LIGHT ARRANGEMENT WITH ELECTRICAL DISPLAY.
CA1023039A (en) Light emitting diode display
NL7417016A (en) IMAGE DEVICE WITH LIGHT EMITTING SEMI-ELEMENTS.
SE7510038L (en) LENSED LIGHT EMITTING Diode Unit
NL7712752A (en) LASER WITH DEEP RED LIGHT.
SE7706625L (en) LIGHT EMITTING DIOD
IT7830682A0 (en) ELECTRICAL LIGHTING FIXTURE.
JPS5275285A (en) Light emitting diode assembly
NL7710251A (en) LIGHT GUIDE CONNECTION.
NL7804801A (en) VOLTAGE METER WITH LIGHT EMITTING DIODES.
NL7706707A (en) LIGHT PIGMENTS.
IT1075084B (en) SIGNALING LIGHT
NL168069C (en) LIGHT SIGNALING DEVICE.
JPS5347284A (en) Gap light emitting diode
JPS5431783A (en) Indicator with light emitting diode
IT7827016A0 (en) MATRIX OF LIGHT EMITTING DIODES.
SE390361B (en) LIGHT EMITTING Diode Unit AND SET FOR ITS PREPARATION
JPS5394784A (en) Light emitting diode array

Legal Events

Date Code Title Description
BV The patent application has lapsed