Image of the day

Captured by
Bruce Karbal

WR 134

About Astromart

My Account

New to Astromart?

Register an account...

Need Help?

Silver + Dielectirc coatings

Started by jonisaacs, 06/04/2007 10:39PM
Post Reply
Posted 06/04/2007 10:39PM Opening Post
Jon Isaacs
View public profile Send a private message to Jon Isaacs Find more posts by Jon Isaacs Find threads started by Jon Isaacs
Forum Member
jonisaacs's avatar

Join Date: Jun 2001

Location: San Diego CA, US

Posts: 2161

For Sale: Antares 99% Dielectric 2" Diagonal

Ad No.: 503471

""According to Antares, it sports silver coatings, dielectric overcoating, and 99% reflectivity.""

Just wondering how this diagonal can have both silver coatings and a dielectic overcoating, I am assuming it has a silver coating and a protective coating that just happens to be a dielectic (as most probably are.)

Just wondering...

jon
Quote
Posted 06/04/2007 10:59PM #1
Floyd Blue
View public profile Send a private message to Floyd Blue Find more posts by Floyd Blue Find threads started by Floyd Blue
Forum Member
fblue's avatar

Join Date: Mar 2003

Location: Bakersfield CA, US

Posts: 4913

Jon,
Yes, it can only have an overcoat on the silver, otherwise called "protected silver".
Quote
[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Post Reply

Funding Member

Sponsors


View all sponsors

Search