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Amici Prism

Featured Product from Avantier Inc.

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Manufacture of Amici Prisms

When an amici roof prism is in use light will enter the prism through a short face and hit the reflecting surface of one of the roof faces. The light will then be reflected off the other roof face and exit the prism through the second short face. Because of this, the roof angle of an Amici roof prism must be highly precise; just four arc seconds deviation from a perfect right angle will result in double images. Careful craftsmanship and thorough testing are required to manufacture quality Amici prisms, and not every optical supplier is up to the task.

 At Avantier, we pride ourselves on our high-quality machinery and state-of-the-art metrology that allows us to manufacture precision custom optics, including custom amici prisms built to order.  Amici prisms are typically cut and ground from premium borosilicate crown glass, but there are other substrate options available on request. Avantier standard surface quality is 60-40 scratch and dig, and our optical engineers ensure that the roof angle of our amici roof prisms are accurate to  3arc min.

Factory Standard
Material: BK7 Grade A optical glass
Dimension Tolerance: +0,-0.2mm
Flatness λ/4 at 632.8 nm
Surface Quality 60-40 scratch and dig
Clear Aperture: >80%
Bevel: 0.2 mm to 0.5 mm x 45o
Angle Tolerance: ± 3arcmin

Custom Amici Prisms at Avantier

Whether you need an amici roof prism made to order for your telescope or endoscope,  a dispersive amici prism for your spectroscope, or any other custom prism for your optical assembly, we have you covered. If you would like an Amici roof prism but need your light bent by an angle other than 90 degrees, we can use mirror coatings to get you there.