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The Ohio State University
College of Mathematical & Physical Sciences
Department of Astronomy
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OSMOS
Filter Specifications
Here are specifications for new filters for OSMOS. Anyone interested in
purchasing new filters for OSMOS are strongly encouraged to contact Paul
Martini in advance.
- Physical Parameters:
- Size: 101.5 x 101.5mm (+-0.5mm)
- Thickness: 7mm (+-0.5mm)
- Parallelism: <2 arcminutes
- Chamfer: 0.5mm on all edges
- Edge: fine ground, painted black
- Operating temperature: -10C to +20C
- Optical Parameters:
- Clear aperture: 90% of physical size
- Angle of incidence: 8 degrees
- Surface flatness: 1 wave PV at 633nm over clear aperture
- Surface quality: 80/50 scratch dig
Return to: [
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OSU Astronomy Home Page
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Updated: 2009 Sept 12 [rz/pm]