JPS5930128U - オ−バ−ヘツドプロジエクタ−減光装置 - Google Patents

オ−バ−ヘツドプロジエクタ−減光装置

Info

Publication number
JPS5930128U
JPS5930128U JP12569482U JP12569482U JPS5930128U JP S5930128 U JPS5930128 U JP S5930128U JP 12569482 U JP12569482 U JP 12569482U JP 12569482 U JP12569482 U JP 12569482U JP S5930128 U JPS5930128 U JP S5930128U
Authority
JP
Japan
Prior art keywords
overhead projector
dimmer
document
illuminates
abstract
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.)
Granted
Application number
JP12569482U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6331050Y2 (enrdf_load_stackoverflow
Inventor
純一 矢澤
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12569482U priority Critical patent/JPS5930128U/ja
Publication of JPS5930128U publication Critical patent/JPS5930128U/ja
Application granted granted Critical
Publication of JPS6331050Y2 publication Critical patent/JPS6331050Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP12569482U 1982-08-20 1982-08-20 オ−バ−ヘツドプロジエクタ−減光装置 Granted JPS5930128U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12569482U JPS5930128U (ja) 1982-08-20 1982-08-20 オ−バ−ヘツドプロジエクタ−減光装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12569482U JPS5930128U (ja) 1982-08-20 1982-08-20 オ−バ−ヘツドプロジエクタ−減光装置

Publications (2)

Publication Number Publication Date
JPS5930128U true JPS5930128U (ja) 1984-02-24
JPS6331050Y2 JPS6331050Y2 (enrdf_load_stackoverflow) 1988-08-19

Family

ID=30286072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12569482U Granted JPS5930128U (ja) 1982-08-20 1982-08-20 オ−バ−ヘツドプロジエクタ−減光装置

Country Status (1)

Country Link
JP (1) JPS5930128U (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6331050Y2 (enrdf_load_stackoverflow) 1988-08-19

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