Custom Optical Bonding Triplet Lens Achromatic Cemented Triple Lens

Product Description

Bonding Achromatic Lens is an achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at two well-separated wavelengths, usually in the blue and red region of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction limited focusing of a laser beam. Negative Achromatic are typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, spherical aberration and coma are greatly reduced.True Optics can provide Positive Achromatic Lens and Negative Achromatic Lens by two piece single lens (Doublet) or three piece single lens (Triplet).

Material:                      Clear Optical Glass
Surface *:              * λ/*@********************ig:                   < *0/*0 (both sides)
Eccentricity:                   ≤ 1arcmin
Focal Length Tolerance         < ± 1%
Diameter Tolerance:            < + 0.*0/ *0.*0mm
Thickness Tolerance:           < ± 0.1
Clear Aperture:                 ≥ *0% of diameter AR OR
Coating:                     AR OR BBAR
Diameter  Range:            5~**0m