Ross Optical Standard Achromats
Description
These lenses consist of two optical elements, usually of crown and flint glass types, cemented together to form an achromatic doublet. Most often, the crown lens is a biconvex positive lens. Due to the difference in refractive indices, chromatic aberration with respect to two selected wavelengths has been corrected. The lenses have been corrected for on-axis spherical aberration as well. Achromatic doublets are used as telescope objectives, eye loupes, magnifying glasses and eyepieces. Achromatic doublets have also been used to focus and manipulate laser beams because their image quality is superior to single lenses.
Ross Optical Standard Achromats
Specifications |
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|---|---|
| Mounting: | Unmounted, Mounted |
| Optimal Wavelength Range: | 400-700nm |
| Diameter: | 25 mm |
| Focal Length: | Custom mm |
| Achromat Type: | Doublet, Triplet |
Applications
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Frequently Asked Questions
Ross Optical Standard Achromats are lenses consisting of two optical elements, usually of crown and flint glass types, cemented together to form an achromatic doublet.
Chromatic aberration is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point.
Achromatic doublets are used as telescope objectives, eye loupes, magnifying glasses, eyepieces, laser optics, OEM, metrology, and vision.
The diameter of Ross Optical Standard Achromats ranges from 6.00 mm to greater than 50.00 mm.
The tolerance for centering irregularity is less than 3 minutes for diameters ranging from 6.00 mm to 25.00 mm, and 3-5 arc minutes for diameters greater than 50.00 mm.