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Cemented Lens

Achromatic Cemented Lens

An achromatic doublet is an advanced lens that eliminates chromatic aberration by combining two different optical materials, making it indispensable in imaging systems and precision optics. The cementing process involves bonding two lenses with matching curvatures using optical cement (epoxy resin) to eliminate interface reflection. It is primarily used in microscope objectives, astronomical telescopes, industrial lenses, camera telephoto lenses, as well as laser focusing and collimation systems.

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Specification Of Achromatic Cemented Lens


MaterialOptical Flint glass & Crown glass
Diameter6mm~200mm
Diameter Tolerance±0.05mm(≤50mm)
±0.1mm(>50mm)
Focal Length50mm~2000mm
Focal Length Tolerance±0.2%(<10mm)
±0.5%(<10mm-1000mm)
±1%(<>1000mm)
Center Thickness2mm~50mm
Surface Quality60/40, 40/20, 20/10
Surface Accuracyλ/2~λ/10@632.8nm, 532nm
Clear Aperture>85% dig diameter
Centration<3arc min~30arc sec
CoatingAs per the customer's request


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