JPH0178318U - - Google Patents

Info

Publication number

JPH0178318U

JPH0178318U JP1987172593U JP17259387U JPH0178318U JP H0178318 U JPH0178318 U JP H0178318U JP 1987172593 U JP1987172593 U JP 1987172593U JP 17259387 U JP17259387 U JP 17259387U JP H0178318 U JPH0178318 U JP H0178318U

Authority

JP

Japan

Prior art keywords

photodetector

optical head

holographic optical

center

utility

Prior art date

1987-11-11

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 2
• 238000010586 diagram Methods 0.000 description 4
• 239000003708 ampul Substances 0.000 description 1