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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Lense origins?
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<blockquote data-quote="tulku" data-source="post: 601598" data-attributes="member: 5203"><p>Wow , a five year old Topic resurfaces . To answer your question , it matters both who makes the Glass and who grinds the Glass . The Glass can contain many imperfections so you have to know how to blend the Glass components and how to minimize the many imperfections that can occur in the raw Glass . Grinding / Polishing is an art in itself although I think it is mostly machine done today . Coatings are applied by Vacuum Metallization or Plasma Sputtering and require knowledge on which materials you are coating onto the Lens and in which order , and how thick ( controls are almost to the atomic level ) . I've lost track on who does what lately , but I think almost all the "Assemblers " get the finished Lenses as inputs . Can't remember exactly , but Light Optical (and maybe Asahi was tied-in too ) in Japan were top Oriental optics suppliers . I would be interested if anyone has current info !</p></blockquote><p></p>
[QUOTE="tulku, post: 601598, member: 5203"] Wow , a five year old Topic resurfaces . To answer your question , it matters both who makes the Glass and who grinds the Glass . The Glass can contain many imperfections so you have to know how to blend the Glass components and how to minimize the many imperfections that can occur in the raw Glass . Grinding / Polishing is an art in itself although I think it is mostly machine done today . Coatings are applied by Vacuum Metallization or Plasma Sputtering and require knowledge on which materials you are coating onto the Lens and in which order , and how thick ( controls are almost to the atomic level ) . I've lost track on who does what lately , but I think almost all the "Assemblers " get the finished Lenses as inputs . Can't remember exactly , but Light Optical (and maybe Asahi was tied-in too ) in Japan were top Oriental optics suppliers . I would be interested if anyone has current info ! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Lense origins?
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