JPH01177728U - - Google Patents

Info

Publication number

JPH01177728U

JPH01177728U JP7424488U JP7424488U JPH01177728U JP H01177728 U JPH01177728 U JP H01177728U JP 7424488 U JP7424488 U JP 7424488U JP 7424488 U JP7424488 U JP 7424488U JP H01177728 U JPH01177728 U JP H01177728U

Authority

JP

Japan

Prior art keywords

transparent plate

observation

illumination

window

hole

Prior art date

1988-06-06

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

• 238000005286 illumination Methods 0.000 claims description 3
• 239000000523 sample Substances 0.000 claims description 3
• 239000013307 optical fiber Substances 0.000 claims 2
• 230000001681 protective effect Effects 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2
• 239000000428 dust Substances 0.000 description 2
• 238000001816 cooling Methods 0.000 description 1
• 239000000835 fiber Substances 0.000 description 1
• 239000005357 flat glass Substances 0.000 description 1
• 230000002265 prevention Effects 0.000 description 1
• 238000010926 purge Methods 0.000 description 1

Cited By (1)