JPH0431149U - - Google Patents

Info

Publication number

JPH0431149U

JPH0431149U JP7220890U JP7220890U JPH0431149U JP H0431149 U JPH0431149 U JP H0431149U JP 7220890 U JP7220890 U JP 7220890U JP 7220890 U JP7220890 U JP 7220890U JP H0431149 U JPH0431149 U JP H0431149U

Authority

JP

Japan

Prior art keywords

document

light

document size

emitting element

holding plate

Prior art date

1990-07-06

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

Links

• Espacenet
• Global Dossier
• Discuss

• 238000001514 detection method Methods 0.000 claims description 2
• 230000003287 optical effect Effects 0.000 claims description 2
• 238000010586 diagram Methods 0.000 description 5
• 238000000034 method Methods 0.000 description 1
• 230000002093 peripheral effect Effects 0.000 description 1