Search found 7 matches
- Fri Jun 02, 2017 4:07 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Optomechanical hybrid lathe
- Replies: 6
- Views: 1465
Re: Optomechanical hybrid lathe
You might want to take a look at "RCA Review" in the period of 1979 to about 1984 (I don't have the exact issue in front of me). In one of these there was a detailed description of a laser based mastering system for the RCA CED videodisc. The recording medium was photoresist on a metal substrate. It...
- Wed Oct 14, 2009 7:40 pm
- Forum: The Treehouse
- Topic: silvering for photoresist mastering
- Replies: 12
- Views: 6146
Thank you again to mossboss for that very helpful information on the options for silvering and the costs involved. I need to get further along now with obtaining the optics and finding out more information on modulating the laser without destroying it. I hope to be able to repurpose some consumer pr...
- Sun Oct 11, 2009 9:30 pm
- Forum: The Treehouse
- Topic: silvering for photoresist mastering
- Replies: 12
- Views: 6146
I was just looking again at fusionkid's information on the cost of the catalyst for the copper plating operations. I was trying to do mental arithmetic while fellow workers are concentrating on American football games...So I got about 80 U.S. gal. into about 15000 English pounds might be about 170 E...
- Fri Oct 09, 2009 9:03 pm
- Forum: The Treehouse
- Topic: silvering for photoresist mastering
- Replies: 12
- Views: 6146
Thanks again to mossboss for sharing his experience in the silvering process. I am slowly getting together pieces for the experiments. The biggest plus lately has been that blue/violet lasers can now be found in the U.S. for $25 or so. This wavelength is necessary in order to expose photoresist. I k...
- Wed Oct 07, 2009 3:27 pm
- Forum: The Treehouse
- Topic: silvering for photoresist mastering
- Replies: 12
- Views: 6146
I was away from the computer for a couple of days, but I wanted to thank mossboss and fusionkid for their useful information. I looked again at the 10,000 times magnitication photos in the P. Legierse article and need to explain that the fact of some "globs" of the silver being about 0.8 microns(ran...
- Sun Oct 04, 2009 5:49 pm
- Forum: The Treehouse
- Topic: silvering for photoresist mastering
- Replies: 12
- Views: 6146
- Sun Oct 04, 2009 2:47 pm
- Forum: The Treehouse
- Topic: silvering for photoresist mastering
- Replies: 12
- Views: 6146
silvering for photoresist mastering
I have been following the forum for some time, but this is my first post. I am considering attempting laser based recording . The recording medium would be a flat smooth substrate coated with a thin film of positive photoresist. After the test recordings, the discs would, hopefully, be silvered usin...