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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!mcsun!fuug!kiae!demos!newsserv
- From: rr@randg.lt.su (Remigijus Rimkevicius)
- Newsgroups: sci.optics
- Subject: Re: Need to make a glass surface rough ...
- Message-ID: <AB2biFhyv5@randg.lt.su>
- Date: 28 Dec 92 09:30:42 GMT
- Sender: news-service@newcom.kiae.su
- Reply-To: rr@randg.lt.su
- Organization: Rimkevicius and Gintautas Company
- Lines: 25
-
- >
- > I need to make a 50 microns x 1000 microns section of glass surface
- > ROUGH. I have a mask with the required dimensions. Most etchants are
- > "smooth", and I suspect the common HF based etchants are, too. Are there
- > any wet chemical etchants that can be used?
- > ...
- > We are trying to make a low reflectivity strip on a mirror. This
- > ...
-
- How low the strip reflectivity must be?
-
- Fast etching with HF (higly concentrated) will give rough surface, though I
- think it may be difficult to controle the 50 um measure.
-
- What I would like next to suggest are vacuum or chemical deposition of
- diffusive or absorbing lyers. Or simply application of a piece of material
- with useful properties using e.g. electrostatics - as a dust.
-
- And the last - do the strip may be a scratch?
-
- Remigijus
- --
- R&G Co., Box 2487, 2051 Vilnius-51, Lithuania
- Ph +7-0122-626032, Ph/Fax 353560, Tlx 261240 TLG SU
- Rimkevicius@Randg.Uab.Lt
-