Changchun Realpoo Photoelectric Co.,Ltd.

Achromatic Lens (Achromatic Doublet)
Reduced Chromatic Aberration for Precision Optical Systems
Lens Type: Cemented Achromatic Doublet
Customization: Diameter • Focal Length • Coating • Mounting

What Is an Achromatic Lens?
An achromatic lens (achromatic doublet) is a cemented two-element lens made of different optical glass materials, designed to significantly reduce chromatic aberration by bringing two wavelengths (typically red and blue) into the same focus.
Compared with a single spherical lens, achromatic lenses provide:
Sharper focus
Higher image contrast
Improved transmission accuracy

Material & Coating Options
Glass Materials:
Crown & flint glass combinations
Optical glass selected by wavelength and application

Coating Options:
AR coating (single wavelength): minimum reflection at target wavelength
BBAR coating: broadband applications (e.g. 400–700nm, 650–1050nm)
Dual-side coating: higher transmission and contrast
Laser-grade coating: improved durability for laser systems

Customization Capability
We support OEM customization including:
Custom focal length and diameter
Wavelength-optimized glass combinations
AR/BBAR coating design
Tight centration and cement thickness control
High precision surface quality options