Low cost roof mirrors

[j***@gmail.com]

Hi All

I was hoping someone might be able to help me. I plan to build a simple interferometer, for which I require some 90 degree hollow roof prism mirrors (or alternative roof mirrors) with roughly +- 10 arcsec dihedral angle accuracy. I have checked the usual scientific suppliers (Thorlabs etc) but costs are more than $300 for a one-inch-square component, which is unfortunately too much for this particular project. Is anyone able to recommend a more economic option? Ideally, I am looking for a cost of < $100 per roof mirror. Are they by chance a standard component in any existing mass-produced products?

Many thanks!

John

[g***@gmail.com]

Post by j***@gmail.com
Hi All
I was hoping someone might be able to help me. I plan to build a simple interferometer, for which I require some 90 degree hollow roof prism mirrors (or alternative roof mirrors) with roughly +- 10 arcsec dihedral angle accuracy. I have checked the usual scientific suppliers (Thorlabs etc) but costs are more than $300 for a one-inch-square component, which is unfortunately too much for this particular project. Is anyone able to recommend a more economic option? Ideally, I am looking for a cost of < $100 per roof mirror. Are they by chance a standard component in any existing mass-produced products?
Many thanks!
John

In the past I got some surplus optics from Anchor optics... but they got
bought by Edmunds and I think the prices went up.

Phil H. will mention the Surplus Shack.. or Shed. I've never bought stuff from them.

George H.

[Joe Gwinn]

Post by g***@gmail.com

Post by j***@gmail.com
Hi All
I was hoping someone might be able to help me. I plan to build a simple
interferometer, for which I require some 90 degree hollow roof prism
mirrors (or alternative roof mirrors) with roughly +- 10 arcsec dihedral
angle accuracy. I have checked the usual scientific suppliers (Thorlabs
etc) but costs are more than $300 for a one-inch-square component, which is
unfortunately too much for this particular project. Is anyone able to
recommend a more economic option? Ideally, I am looking for a cost of <
$100 per roof mirror. Are they by chance a standard component in any
existing mass-produced products?
Many thanks!
John

In the past I got some surplus optics from Anchor optics... but they got
bought by Edmunds and I think the prices went up.
Phil H. will mention the Surplus Shack.. or Shed. I've never bought stuff from them.

I don't recall the prices, but these folk were relatively cheap, due to
their manufacturing method - see their patents.

.<http://www.plxinc.com/>

Joe Gwinn

[Helpful person]

If you have tools yourself and the time they are fairly easy to make yourself. Accurate alignment is easy if the mirrors are front surface mounted. Depending on your application a more difficult problem may be phase changes on reflection.

http://www.richardfisher.com

[Michael Koch]

search for "HP 10703A" on Ebay

Michael

[Samuel M. Goldwasser]

Post by Michael Koch
search for "HP 10703A" on Ebay

The 10703A is a cube-corner, which may not be appropriate depending
on the applications.

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[j***@gmail.com]

Post by j***@gmail.com
Hi All
I was hoping someone might be able to help me. I plan to build a simple interferometer, for which I require some 90 degree hollow roof prism mirrors (or alternative roof mirrors) with roughly +- 10 arcsec dihedral angle accuracy. I have checked the usual scientific suppliers (Thorlabs etc) but costs are more than $300 for a one-inch-square component, which is unfortunately too much for this particular project. Is anyone able to recommend a more economic option? Ideally, I am looking for a cost of < $100 per roof mirror. Are they by chance a standard component in any existing mass-produced products?
Many thanks!
John

Hi All

Many thanks for the helpful replies. It's definitely a roof mirror (not a corner cube) that I need for this particular application. I will certainly check out PLX. I'm also open to the idea of making one from scratch the target accuracy of +- 10 arcsec can be achieved without excessive pain - is there a good source for fabrication details?

Best wishes

John

[Joe Gwinn]

Post by j***@gmail.com

Post by j***@gmail.com
Hi All
I was hoping someone might be able to help me. I plan to build a simple
interferometer, for which I require some 90 degree hollow roof prism
mirrors (or alternative roof mirrors) with roughly +- 10 arcsec dihedral
angle accuracy. I have checked the usual scientific suppliers (Thorlabs
etc) but costs are more than $300 for a one-inch-square component, which is
unfortunately too much for this particular project. Is anyone able to
recommend a more economic option? Ideally, I am looking for a cost of <
$100 per roof mirror. Are they by chance a standard component in any
existing mass-produced products?
Many thanks!
John

Hi All
Many thanks for the helpful replies. It's definitely a roof mirror (not a
corner cube) that I need for this particular application. I will certainly
check out PLX. I'm also open to the idea of making one from scratch the
target accuracy of +- 10 arcsec can be achieved without excessive pain - is
there a good source for fabrication details?

Try this:

.<http://www.plxinc.com/documents/PERFECTOPTICALALIGNMENTMADESIMPLE11-bi
s.pdf>

Joe Gwinn

[DrPete]

Post by j***@gmail.com
Hi All
I was hoping someone might be able to help me. I plan to build a simple interferometer, for which I require some 90 degree hollow roof prism mirrors (or alternative roof mirrors) with roughly +- 10 arcsec dihedral angle accuracy. I have checked the usual scientific suppliers (Thorlabs etc) but costs are more than $300 for a one-inch-square component, which is unfortunately too much for this particular project. Is anyone able to recommend a more economic option? Ideally, I am looking for a cost of < $100 per roof mirror. Are they by chance a standard component in any existing mass-produced products?
Many thanks!
John

I can help with some fused silica front surface mirrors at reasonable cost.
Send me email or call. 714-579-7812 ***@precisionapplied.com
Thanks,
Pete