JPS61173007U - - Google Patents

Info

Publication number

JPS61173007U

JPS61173007U JP5656585U JP5656585U JPS61173007U JP S61173007 U JPS61173007 U JP S61173007U JP 5656585 U JP5656585 U JP 5656585U JP 5656585 U JP5656585 U JP 5656585U JP S61173007 U JPS61173007 U JP S61173007U

Authority

JP

Japan

Prior art keywords

sheet

sheet member

present

light shielding

optical sensor

Prior art date

1985-04-16

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

• 230000003287 optical effect Effects 0.000 claims description 6
• 238000001514 detection method Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 3
• 239000011521 glass Substances 0.000 description 1
• 229910052736 halogen Inorganic materials 0.000 description 1
• 150000002367 halogens Chemical class 0.000 description 1