Achromatic Doublet Lenses
Minimizes Chromatic Aberration: By utilizing different optical glass materials, the lens effectively reduces color-related blurring, ensuring clear and sharp images.
Spherical and On-Axis Comatic Aberration Correction: The lens design allows for the correction of spherical and on-axis comatic aberration, enhancing overall optical performance.
Constant Focal Length: The combination of low and high refractive index glasses delivers a consistent focal length across a specific optical spectrum.
High Power Throughput and Smaller Focal Point Diameters: The lens design attenuates spherical aberrations and coma without reducing the numerical aperture, resulting in improved power throughput and reduced focal point diameters.
Applications: Multi-Color White Light Imaging/Illumination, Laser Light Modulation, NA Conversion, Customizable Working Wavelength Ranges, etc.
Kingwin Optics’ Achromatic Doublet Lens is a precision optical element, typically composed of two cemented concave and convex single lenses made from distinct optical glass materials with compensating dispersion properties. This lens is designed to minimize chromatic aberration in optical modules, ensuring optimal performance across a range of applications.
Specifications:
| Type | Achromatic Doublet Lenses |
| Focal Length Tolerance | ±2% |
| Clear Aperture | >90% |
| Diameter Tolerance | +0.0/-0.1mm |
| Coating | R<0.5%@400-700nm or Custom |
| Centering | 3 arcmin |
| Thickness Tolerance | ±0.2mm |
| Surface Quality | 40/20 S/D |
| Irregularity | λ/4@632.8nm |
| Material | Customized |
| Chamfer | 0.2mm x 45 degree |
Detailed Advantages:
- Minimizes Chromatic Aberration: By utilizing different optical glass materials, the lens effectively reduces color-related blurring, ensuring clear and sharp images.
- Spherical and On-Axis Comatic Aberration Correction: The lens design allows for the correction of spherical and on-axis comatic aberration, enhancing overall optical performance.
- Constant Focal Length: The combination of low and high refractive index glasses delivers a consistent focal length across a specific optical spectrum.
- High Power Throughput and Smaller Focal Point Diameters: The lens design attenuates spherical aberrations and coma without reducing the numerical aperture, resulting in improved power throughput and reduced focal point diameters.
Applications:
- Multi-Color White Light Imaging/Illumination: Ideal for applications such as image inversion and magnification, where color accuracy and clarity are crucial.
- Laser Light Modulation: The lens’s ability to handle multiple wavelengths makes it suitable for laser light modulation tasks.
- NA Conversion: Effective in converting numerical aperture, enhancing the performance of optical systems.
- Customizable Working Wavelength Ranges: The lens can be tailored to specific wavelength requirements for various applications.
Achromatic Doublet Lenses are composed of two glass elements with different optical properties that are cemented together. Typically, they consist of a positive, low-refractive-index crown glass convex lens and a negative, high-refractive-index flint glass concave lens. This design leverages the different dispersion characteristics of the two glass materials and, through precise matching and combination, enables the lens system to eliminate chromatic aberration at two critical wavelengths (such as blue and red light), achieving a nearly constant focal length across the entire visible spectrum.
