JPH0320034U - - Google Patents

Info

Publication number

JPH0320034U

JPH0320034U JP7800489U JP7800489U JPH0320034U JP H0320034 U JPH0320034 U JP H0320034U JP 7800489 U JP7800489 U JP 7800489U JP 7800489 U JP7800489 U JP 7800489U JP H0320034 U JPH0320034 U JP H0320034U

Authority

JP

Japan

Prior art keywords

light

output

photodetector

polarizing filter

irradiation device

Prior art date

1989-06-30

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

• 238000012544 monitoring process Methods 0.000 claims description 3
• 230000003287 optical effect Effects 0.000 description 4
• 238000010586 diagram Methods 0.000 description 1