Uncoated lenses are used in optical systems and devices because they have an exceptionally wide wavelength range, a high damage threshold ratio, and without the expense of coatings, are always less expensive than their coated counterparts. Further, uncoated lenses give camera images a “vintage” look, which is becoming popular in cinema film production.
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We offer a full range of optical lens mounts to meet various experimental requirements. Below lists the recommended mounts for spherical lenses of standard sizes. Please see our Lens Mount Guide for additional information.
Note: besides the diameter, please check the Edge Thickness (Te) specification of the lens and the lens mount to ensure compatibility before purchasing.
If you want to learn more, please visit our website Double Concave Lenses Exporter.
Lens DiameterFor non-standard sizes not listed above, check out our variable size lens mounts.
A double concave lens/mirror has a negative focal length, thereby causing collimated incident light to diverge. The double concave lens/mirror has an equal radius of curvature on both sides of the lens. They are generally used to expand light or increase focal length in the existing system, such as beam expander and projection systems.
The double concave lens of Ecoptik has a negative focal length, thereby causing collimated incident light to diverge. A double concave lens has an equal radius of curvature on both sides of the lens.
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