JPS63196161U - - Google Patents

Info

Publication number

JPS63196161U

JPS63196161U JP8710287U JP8710287U JPS63196161U JP S63196161 U JPS63196161 U JP S63196161U JP 8710287 U JP8710287 U JP 8710287U JP 8710287 U JP8710287 U JP 8710287U JP S63196161 U JPS63196161 U JP S63196161U

Authority

JP

Japan

Prior art keywords

document

reading device

image reading

glass

image

Prior art date

1987-06-03

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

• 239000011521 glass Substances 0.000 claims description 6
• 238000003705 background correction Methods 0.000 claims description 3
• 238000003384 imaging method Methods 0.000 claims description 3
• 230000003287 optical effect Effects 0.000 claims 1
• 238000002834 transmittance Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 1