JPH0299381U - - Google Patents

Info

Publication number

JPH0299381U

JPH0299381U JP848989U JP848989U JPH0299381U JP H0299381 U JPH0299381 U JP H0299381U JP 848989 U JP848989 U JP 848989U JP 848989 U JP848989 U JP 848989U JP H0299381 U JPH0299381 U JP H0299381U

Authority

JP

Japan

Prior art keywords

light

receiving element

detected object

emitting element

detected

Prior art date

1989-01-27

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

• 239000013307 optical fiber Substances 0.000 claims description 3
• 239000006096 absorbing agent Substances 0.000 claims description 2
• 230000003287 optical effect Effects 0.000 claims description 2
• 238000001514 detection method Methods 0.000 claims 1
• 230000035945 sensitivity Effects 0.000 description 1