JPS6463945A - Copying device of backlight sequentially lighting and switching type - Google Patents

Copying device of backlight sequentially lighting and switching type

Info

Publication number
JPS6463945A
JPS6463945A JP22174987A JP22174987A JPS6463945A JP S6463945 A JPS6463945 A JP S6463945A JP 22174987 A JP22174987 A JP 22174987A JP 22174987 A JP22174987 A JP 22174987A JP S6463945 A JPS6463945 A JP S6463945A
Authority
JP
Japan
Prior art keywords
lamp
lights
lit
shift
turned
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
JP22174987A
Other languages
Japanese (ja)
Inventor
Katsuo Shigegaki
Hisashi Saho
Yoshitaka Fukushima
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP22174987A priority Critical patent/JPS6463945A/en
Publication of JPS6463945A publication Critical patent/JPS6463945A/en
Pending legal-status Critical Current

Links

Landscapes

  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE:To obtain images with excellent gradation by turning off with a slight delay a lamp arranged before the lamp concerned every time the latter lights up. CONSTITUTION:A position in which a shift for scanning and exposing will start soon after is detected by a detector 140 placed to the left of an original backlight auxiliary light source 110. When a traveling stand 5A begins to shift, the detection is released, and an initial first lamp 113A among plural lamps of the backlight auxiliary light source device 110 lights up due to signal differences. After the 1st lamp lights up, a timer counts time calculated by l/V where a traveling speed and a lamp interval are V and l, respectively. A 2nd lamp 113B is lit, and with a slight delay the 1st lamp is turned off. Similarly, after a time of l/V passes, a 3rd lamp 113C is lit, and the 2nd lamp is turned off by slightly overlapping the 3rd lamp's lighting. In such a way lamps are switched to turn on and off. Thus images of excellent gradation can be obtained.
JP22174987A 1987-09-03 1987-09-03 Copying device of backlight sequentially lighting and switching type Pending JPS6463945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22174987A JPS6463945A (en) 1987-09-03 1987-09-03 Copying device of backlight sequentially lighting and switching type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22174987A JPS6463945A (en) 1987-09-03 1987-09-03 Copying device of backlight sequentially lighting and switching type

Publications (1)

Publication Number Publication Date
JPS6463945A true JPS6463945A (en) 1989-03-09

Family

ID=16771614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22174987A Pending JPS6463945A (en) 1987-09-03 1987-09-03 Copying device of backlight sequentially lighting and switching type

Country Status (1)

Country Link
JP (1) JPS6463945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111931724A (en) * 2020-09-23 2020-11-13 北京百度网讯科技有限公司 Signal lamp abnormity identification method and device, electronic equipment and road side equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111931724A (en) * 2020-09-23 2020-11-13 北京百度网讯科技有限公司 Signal lamp abnormity identification method and device, electronic equipment and road side equipment

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