JPS6423040U - - Google Patents

Info

Publication number
JPS6423040U
JPS6423040U JP11506587U JP11506587U JPS6423040U JP S6423040 U JPS6423040 U JP S6423040U JP 11506587 U JP11506587 U JP 11506587U JP 11506587 U JP11506587 U JP 11506587U JP S6423040 U JPS6423040 U JP S6423040U
Authority
JP
Japan
Prior art keywords
light source
fresnel lens
temperature
overhead projector
heated
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
JP11506587U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP11506587U priority Critical patent/JPS6423040U/ja
Publication of JPS6423040U publication Critical patent/JPS6423040U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
JP11506587U 1987-07-29 1987-07-29 Pending JPS6423040U (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11506587U JPS6423040U (de) 1987-07-29 1987-07-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11506587U JPS6423040U (de) 1987-07-29 1987-07-29

Publications (1)

Publication Number Publication Date
JPS6423040U true JPS6423040U (de) 1989-02-07

Family

ID=31356380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11506587U Pending JPS6423040U (de) 1987-07-29 1987-07-29

Country Status (1)

Country Link
JP (1) JPS6423040U (de)

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