High Transmission AR Coating Optical Achromatic Doublet Convex Lens
for Collimator
Glass Material Achromatic Doublet Design: Combines two optical glasses (e.g., crown glass N-BK7 and flint glass N-SF11) to eliminate chromatic aberration. High-Quality Optics: Schott or equivalent glass with low impurity levels, ensuring
minimal scatter and high transmission (400–700 nm range).
- Anti-Reflective (AR) Coating: Reduces surface reflections, enhancing light transmission and
reducing glare.
- Achromatic Correction: Eliminates chromatic aberration, ensuring that images remain
sharp and focused across a range of visible wavelengths.
- Doublet Design: Combines two lenses with different refractive indices to further
correct aberrations and improve image quality.
- Convex Shape: Provides a wide field of view and good imaging performance.
Primary Functions Color Accuracy: Delivers sharp, true-color images by minimizing
wavelength-dependent focal shifts. High-Efficiency Focusing: Convex design concentrates light for precise beam collimation or
magnification. Reflection Control: AR coating eliminates ghosting in multi-lens systems (e.g.,
cameras, telescopes).
Applications Microscopy & Imaging: Critical in high-resolution microscopes, DSLR lenses, and
telecentric systems. Laser Systems: Collimators, beam expanders, and fiber-optic coupling in
industrial/medical lasers. Astronomy: Telescope objectives and eyepieces for clear celestial
observation. Machine Vision: Barcode scanners, metrology tools, and automated inspection
systems. Medical Devices: Endoscopes, OCT imaging, and ophthalmic diagnostics. Defense & Aerospace: Targeting optics, rangefinders, and surveillance systems.
Advantages Over Singlet Lenses Superior Color Fidelity: Achromatic design reduces axial/lateral chromatic aberration. Enhanced Resolution: AR coating improves contrast for fine-detail imaging. Multi-Wavelength Performance: Effective across UV, visible, and near-IR ranges with custom
coatings
| Name | Optical Achromatic Lens | | Material | Optical glass, Qurartz glass, borosilicate glass | | Diameter Tolerance | +0/-0.15 mm | | Thickness Tolerance | +/-0.15mm | | Processed | by grinding, polishing | | Surface Quality | 60/40,40/20 | | Material Quality | no scratches and air bubble | | Transmission | above 90% | | Chamfer | 0.1-0.5 mm x 45° | | Surface Coating | Available | | Usage | Photography, Lighting system |
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