JPH0430568Y2 - - Google Patents

Info

Publication number

JPH0430568Y2

JPH0430568Y2 JP10327787U JP10327787U JPH0430568Y2 JP H0430568 Y2 JPH0430568 Y2 JP H0430568Y2 JP 10327787 U JP10327787 U JP 10327787U JP 10327787 U JP10327787 U JP 10327787U JP H0430568 Y2 JPH0430568 Y2 JP H0430568Y2

Authority

JP

Japan

Prior art keywords

helicoid

lead

thread

lens barrel

lens

Prior art date

1987-07-07

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
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• 230000003287 optical effect Effects 0.000 description 6
• 229920003002 synthetic resin Polymers 0.000 description 5
• 239000000057 synthetic resin Substances 0.000 description 5
• 230000002093 peripheral effect Effects 0.000 description 4
• 230000000694 effects Effects 0.000 description 3
• 238000004519 manufacturing process Methods 0.000 description 3
• 238000000465 moulding Methods 0.000 description 3
• QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 2
• XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
• 229910052782 aluminium Inorganic materials 0.000 description 2
• 238000005516 engineering process Methods 0.000 description 2
• 238000001746 injection moulding Methods 0.000 description 2
• 239000000463 material Substances 0.000 description 2
• 238000002360 preparation method Methods 0.000 description 2
• 230000005484 gravity Effects 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 230000004048 modification Effects 0.000 description 1
• 230000000717 retained effect Effects 0.000 description 1
• 238000009751 slip forming Methods 0.000 description 1