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: PLANO CONCAVE LENSES |
Product Description Tower Optical's Plano Concave lenses have a negative focal length, diverges collimated incident light, and forms only virtual images which are seen through the lens. It is often used to expand light beams or increase focal lengths in existing systems.
They are widely used in telescopes, collimaters, optical transceivers, magnifiers, radiometers and condensers. |
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Specifications
Material: BK7, Grade A, Fine Anneal, (K9 substitute)
Design Wavelength: N 1.5150, @633nm
Diameter Tolerance: +0/-0.10mm
Focal Length Tolerance: ±1%
Centering: ±3 arcmin
Clear Aperture: 90% of Diameter
Surface Quality: 60/40 S/D
Bevel: 0.25mm x 45°
Coating: None
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Bolded part numbers are in stock as of the printing of this catalog.
Please check with Tower for availability.
Contact us for Quantity Pricing.
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