JPS61202059U - - Google Patents

Info

Publication number

JPS61202059U

JPS61202059U JP8591185U JP8591185U JPS61202059U JP S61202059 U JPS61202059 U JP S61202059U JP 8591185 U JP8591185 U JP 8591185U JP 8591185 U JP8591185 U JP 8591185U JP S61202059 U JPS61202059 U JP S61202059U

Authority

JP

Japan

Prior art keywords

paper

light source

detection means

detects

light

Prior art date

1985-06-07

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 5
• 230000003287 optical effect Effects 0.000 claims 2
• 238000001228 spectrum Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 3
• 238000005259 measurement Methods 0.000 description 2

Cited By (1)