JPH0448045Y2 - - Google Patents

Info

Publication number

JPH0448045Y2

JPH0448045Y2 JP15573986U JP15573986U JPH0448045Y2 JP H0448045 Y2 JPH0448045 Y2 JP H0448045Y2 JP 15573986 U JP15573986 U JP 15573986U JP 15573986 U JP15573986 U JP 15573986U JP H0448045 Y2 JPH0448045 Y2 JP H0448045Y2

Authority

JP

Japan

Prior art keywords

optical system

lens

cover

housing

elastic protrusion

Prior art date

1986-10-13

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.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 230000003287 optical effect Effects 0.000 claims description 37
• 238000005286 illumination Methods 0.000 claims description 11
• 238000004140 cleaning Methods 0.000 description 8
• 238000004519 manufacturing process Methods 0.000 description 3
• 238000010586 diagram Methods 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 239000000463 material Substances 0.000 description 2
• 238000001816 cooling Methods 0.000 description 1
• 238000001746 injection moulding Methods 0.000 description 1
• 229920000515 polycarbonate Polymers 0.000 description 1
• 239000004417 polycarbonate Substances 0.000 description 1
• 238000003825 pressing Methods 0.000 description 1