JPS6199813U - - Google Patents

Info

Publication number

JPS6199813U

JPS6199813U JP18524284U JP18524284U JPS6199813U JP S6199813 U JPS6199813 U JP S6199813U JP 18524284 U JP18524284 U JP 18524284U JP 18524284 U JP18524284 U JP 18524284U JP S6199813 U JPS6199813 U JP S6199813U

Authority

JP

Japan

Prior art keywords

infrared light

subject

receiving element

imaging lens

light source

Prior art date

1984-12-05

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

• 238000003384 imaging method Methods 0.000 claims description 4
• 238000001514 detection method Methods 0.000 claims description 2
• 238000010586 diagram Methods 0.000 description 4
• 230000003287 optical effect Effects 0.000 description 1