JPS612650U - 反射型オ−バ−ヘツドプロジエクタ− - Google Patents

反射型オ−バ−ヘツドプロジエクタ−

Info

Publication number
JPS612650U
JPS612650U JP8542384U JP8542384U JPS612650U JP S612650 U JPS612650 U JP S612650U JP 8542384 U JP8542384 U JP 8542384U JP 8542384 U JP8542384 U JP 8542384U JP S612650 U JPS612650 U JP S612650U
Authority
JP
Japan
Prior art keywords
overhead projector
case
light source
fresnel reflector
reflective overhead
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
JP8542384U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0438345Y2 (en, 2012
Inventor
邦雄 沼田
晋 東畑
Original Assignee
株式会社学習研究社
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 株式会社学習研究社 filed Critical 株式会社学習研究社
Priority to JP8542384U priority Critical patent/JPS612650U/ja
Priority to US06/684,043 priority patent/US4636050A/en
Priority to DE3446822A priority patent/DE3446822C2/de
Priority to GB08432637A priority patent/GB2152233B/en
Publication of JPS612650U publication Critical patent/JPS612650U/ja
Application granted granted Critical
Publication of JPH0438345Y2 publication Critical patent/JPH0438345Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP8542384U 1983-12-26 1984-06-08 反射型オ−バ−ヘツドプロジエクタ− Granted JPS612650U (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8542384U JPS612650U (ja) 1984-06-08 1984-06-08 反射型オ−バ−ヘツドプロジエクタ−
US06/684,043 US4636050A (en) 1983-12-26 1984-12-20 Reflection type overhead projector
DE3446822A DE3446822C2 (de) 1983-12-26 1984-12-21 Reflexions-Overheadprojektor
GB08432637A GB2152233B (en) 1983-12-26 1984-12-27 Projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8542384U JPS612650U (ja) 1984-06-08 1984-06-08 反射型オ−バ−ヘツドプロジエクタ−

Publications (2)

Publication Number Publication Date
JPS612650U true JPS612650U (ja) 1986-01-09
JPH0438345Y2 JPH0438345Y2 (en, 2012) 1992-09-08

Family

ID=30635806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8542384U Granted JPS612650U (ja) 1983-12-26 1984-06-08 反射型オ−バ−ヘツドプロジエクタ−

Country Status (1)

Country Link
JP (1) JPS612650U (en, 2012)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51149625U (en, 2012) * 1975-05-23 1976-11-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51149625U (en, 2012) * 1975-05-23 1976-11-30

Also Published As

Publication number Publication date
JPH0438345Y2 (en, 2012) 1992-09-08

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