Kirk Wallace wrote: > It seems to me, a custom method of burning a CD might work. I would > think very fine lines could be made. Another idea might be to have glass > disks aluminum coated as is done for telescope mirrors and either etch > or burn lines in that. I Could use 3" diameter encoder wheels, but U. S. > Digital's largest is 2". > Keep working along this line and you will get to how glass scale encoders are made, as well as the glass encoder discs in high-res encoders.
You vacuum evaporate pure Chrome (or in some cases nichrome) onto glass. This is a harder and more corrosion-resistant metal than aluminum. Apply photoresist and expose to the master pattern and develop. Then etch with a suitable etchant. Jon ------------------------------------------------------------------------------ Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex infrastructure or vast IT resources to deliver seamless, secure access to virtual desktops. With this all-in-one solution, easily deploy virtual desktops for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
