JPS5948538U - 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
JPS5948538U
JPS5948538U JP14298182U JP14298182U JPS5948538U JP S5948538 U JPS5948538 U JP S5948538U JP 14298182 U JP14298182 U JP 14298182U JP 14298182 U JP14298182 U JP 14298182U JP S5948538 U JPS5948538 U JP S5948538U
Authority
JP
Japan
Prior art keywords
dimmer
overhead projector
original
optical path
platen glass
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
JP14298182U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6333217Y2 (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 JP14298182U priority Critical patent/JPS5948538U/ja
Publication of JPS5948538U publication Critical patent/JPS5948538U/ja
Application granted granted Critical
Publication of JPS6333217Y2 publication Critical patent/JPS6333217Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Overhead Projectors And Projection Screens (AREA)
JP14298182U 1982-09-21 1982-09-21 オ−バ−ヘツドプロジエクタ−減光装置 Granted JPS5948538U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14298182U JPS5948538U (ja) 1982-09-21 1982-09-21 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
JP14298182U JPS5948538U (ja) 1982-09-21 1982-09-21 オ−バ−ヘツドプロジエクタ−減光装置

Publications (2)

Publication Number Publication Date
JPS5948538U true JPS5948538U (ja) 1984-03-31
JPS6333217Y2 JPS6333217Y2 (enrdf_load_stackoverflow) 1988-09-05

Family

ID=30319296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14298182U Granted JPS5948538U (ja) 1982-09-21 1982-09-21 オ−バ−ヘツドプロジエクタ−減光装置

Country Status (1)

Country Link
JP (1) JPS5948538U (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6333217Y2 (enrdf_load_stackoverflow) 1988-09-05

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