KR870003192U - Automatic control device for illuminance of fluorescent lamps - Google Patents

Automatic control device for illuminance of fluorescent lamps

Info

Publication number
KR870003192U
KR870003192U KR2019850009127U KR850009127U KR870003192U KR 870003192 U KR870003192 U KR 870003192U KR 2019850009127 U KR2019850009127 U KR 2019850009127U KR 850009127 U KR850009127 U KR 850009127U KR 870003192 U KR870003192 U KR 870003192U
Authority
KR
South Korea
Prior art keywords
illuminance
control device
automatic control
fluorescent lamps
lamps
Prior art date
Application number
KR2019850009127U
Other languages
Korean (ko)
Other versions
KR890007026Y1 (en
Inventor
신덕유
Original Assignee
신덕유
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 신덕유 filed Critical 신덕유
Priority to KR2019850009127U priority Critical patent/KR890007026Y1/en
Publication of KR870003192U publication Critical patent/KR870003192U/en
Application granted granted Critical
Publication of KR890007026Y1 publication Critical patent/KR890007026Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
KR2019850009127U 1985-07-19 1985-07-19 Control circuit of the intensity of light for discharge lamp KR890007026Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850009127U KR890007026Y1 (en) 1985-07-19 1985-07-19 Control circuit of the intensity of light for discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850009127U KR890007026Y1 (en) 1985-07-19 1985-07-19 Control circuit of the intensity of light for discharge lamp

Publications (2)

Publication Number Publication Date
KR870003192U true KR870003192U (en) 1987-03-27
KR890007026Y1 KR890007026Y1 (en) 1989-10-14

Family

ID=19243991

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850009127U KR890007026Y1 (en) 1985-07-19 1985-07-19 Control circuit of the intensity of light for discharge lamp

Country Status (1)

Country Link
KR (1) KR890007026Y1 (en)

Also Published As

Publication number Publication date
KR890007026Y1 (en) 1989-10-14

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee