NIR Achromatic Doublet Lens
NIR achromatic doublets combine two optical glass elements with different refractive indices and dispersion to improve broadband focusing and imaging performance.
NIR Achromatic Doublet Lens Overview
NIR Achromatic Doublet Lenses are two-element optical assemblies designed to reduce wavelength-dependent focal shift across a specified near-infrared band.
Chenyu Optics manufactures custom doublets with optimized glass combinations, focal lengths, diameters, curvatures, thicknesses and precision optical cementing.
NIR AR and broadband AR coatings are available for imaging, spectroscopy, machine vision, sensors and laser systems.
Key Advantages of NIR Achromatic Doublet Lenses
NIR Imaging, Spectroscopy & Sensing
NIR achromatic doublets improve broadband image quality and focusing stability across the specified near-infrared design band.
Typical Specifications of NIR Achromatic Doublet Lens
| Material | Optical Glass |
|---|---|
| Product Type | NIR Achromatic Doublet Lens |
| Optical Design | Cemented Doublet |
| Number of Elements | 2 |
| Optical Function | Imaging / Focusing / Collimation |
| Diameter | Customized |
| Design Wavelength Range | NIR, customized |
| Effective Focal Length | Customized |
| Back Focal Length | Customized |
| Radius of Curvature | Customized |
| Center Thickness | Customized |
| Glass Combination | Customized |
| Surface Accuracy | Customized |
| Surface Quality | 20-10 / 40-20 scratch-dig |
| Clear Aperture | Customized |
| Centration | Customized |
| Coating | NIR AR / Broadband AR |
NIR Achromatic Doublet Lens Structure
Why Choose Chenyu Optics for NIR Achromatic Doublet Lenses
Chenyu Optics supports custom NIR achromatic doublet production for imaging, spectroscopy, machine vision, sensors and laser systems.
Manufacturing Capability for NIR Achromatic Doublet Lenses
Precision Optical Polishing
Precision polishing of matched optical glass elements with controlled curvature, thickness, surface accuracy and surface quality.
Wavelength-Specific AR Coating
NIR AR and broadband AR coatings optimized for wavelength range, angle of incidence, polarization and glass combination.
Inspection & Packaging
Element matching, cementing, centration, focal length and optical inspection followed by clean handling and protective packaging.
Custom NIR Achromatic Doublet Lens Options
NIR Achromatic Doublet vs. Singlet Lens
| Property | NIR Achromatic Doublet | Singlet Lens | Selection Note |
|---|---|---|---|
| Elements | Two matched optical elements | One optical element | Doublets provide additional correction freedom |
| Chromatic Correction | Reduced focal shift across the NIR design band | Higher wavelength-dependent focal shift | Use a doublet for broadband NIR imaging |
| Construction | Precision cemented and centered assembly | Single polished component | Singlets offer simpler construction |
| Typical Applications | NIR imaging, spectroscopy and machine vision | Narrowband focusing and general beam control | Select according to spectral and image requirements |
| Coating | NIR AR or broadband AR | NIR AR or broadband AR | Optimize coating for the operating band |
Important Considerations for NIR Achromatic Doublet Lenses
Applications and Selection Considerations
NIR Imaging Systems
Improves broadband image quality and reduces wavelength-dependent focus shift.
NIR Spectroscopy
Provides corrected focusing across specified near-infrared spectral bands.
Near-Infrared Cameras
Supports sharp broadband imaging for NIR camera and sensor assemblies.
Laser Systems
Provides focusing and collimation with NIR-optimized glass and coatings.
Machine Vision
Improves image consistency in broadband near-infrared inspection systems.
Scientific Instruments
Provides corrected NIR optics for laboratory and precision measurement equipment.
NIR Achromatic Doublet Lens FAQ
What is an NIR achromatic doublet lens?
It is a two-element lens designed to reduce chromatic aberration across a specified near-infrared wavelength range.
How is an achromatic doublet different from a singlet lens?
A doublet combines two elements with different optical properties to reduce wavelength-dependent focal shift and improve broadband imaging.
Can the NIR wavelength range be customized?
Yes. The glass combination, optical design and AR coating can be optimized for the required NIR band.
Can the focal length and diameter be customized?
Yes. Diameter, focal length, curvature, thickness, glass combination and other optical parameters can be customized.
Are broadband AR coatings available?
Yes. NIR AR and broadband AR coatings are available according to the required spectral range and optical system.
What information should I provide for a quotation?
Please provide the NIR band, diameter, EFL, BFL, glass combination, optical prescription, thickness, surface specifications, centration, coating, imaging requirements and quantity.
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Need Custom NIR Achromatic Doublet Lenses?
Send your wavelength range, diameter, focal length, glass requirements, imaging specifications, coating requirements and quantity for technical evaluation and quotation.