Plano-Concave Lens
One Plane/One Inward Concave Spherical Surface;Negative Diverging Lens with Negative Focal Length,Thick Edge/Thin Center.
Specification Snapshot
Substrate Material
Optical Glass
Effective Clear Aperture [Customizable]
Φ5~Φ50mm (Customizable)
Center Thickness [Designed According to Focal Length]
1.5‑8mm (Designed According to Focal Length)
Edge Thickness
≥0.3mm
Focal Length f [Customizable]
10‑200mm (Customizable)
Radius of Curvature R1/R2
Matched to Focal Length, Symmetric / Asymmetric
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Overview
One Plane/One Inward Concave Spherical Surface;Negative Diverging Lens with Negative Focal Length,Thick Edge/Thin Center.
Specifications
| Parameter | Value |
|---|---|
| Substrate Material | Optical Glass |
| Effective Clear Aperture [Customizable] | Φ5~Φ50mm (Customizable) |
| Center Thickness [Designed According to Focal Length] | 1.5‑8mm (Designed According to Focal Length) |
| Edge Thickness | ≥0.3mm |
| Focal Length f [Customizable] | 10‑200mm (Customizable) |
| Radius of Curvature R1/R2 | Matched to Focal Length, Symmetric / Asymmetric |
| Diameter Tolerance | +0.0 / -0.01mm |
| Center-Thickness Tolerance | ±0.02mm |
| Surface Quality (Scratch-Dig) | 60‑40 / 40‑20 |
| Surface-Figure Accuracy λ [632.8nm] | λ/4@632.8nm |
| Surface Finish | No Edge Chips, Bubbles or Stones |
| Optical Coating [Customizable on Request] | Customizable on Request |
| Optical Throughput Efficiency [After Coating; Average Transmittance] | Average Transmittance after Coating >98% |
| Chamfer [Protective Chamfer] | 0.2×45° Protective Chamfer |
| Operating Temperature | -40℃~+80℃ |
Applications
Laser:Galilean Expander,Divergence,Shaping/Expansion to Reduce Power Density;Lens Groups:With Convex Elements for Spherical Correction,Longer Focal Length/Optimized Parameters;Projection/Illumination:Adjust Divergence,Uniformize Spots,Split Paths/Compensate;Research:Spectrometers,Interferometers,Benches for Divergence/Aberration Compensation,Optical Metrology
Key Features
Parallel Input Diverges,Forms No Real Image,Only a Virtual Focus;Concave Side Toward Input Gives Optimum Aberrations;Negative Optical Power Often Paired with Positive Lenses to Cancel Spherical/System Aberrations;Can Increase Effective Focal Length,Simple Structure with Flat Side for Mounting;Not Used Alone for Imaging,Mainly Divergence,Expansion and Optical Compensation
Datasheet
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Supplier Information
Founded in 2010, Nanyang Yiying Optoelectronics Co., Ltd. is a high-tech enterprise integrating design, development, production and sales, specializing in precision optical lens cold processing and optoelectronic component development. Main products include optical lenses, prisms, filters, optical lens, micro projector engines, etc. Products are widely used in projection display, AR/VR, biometrics, machine vision and other high-precision optical systems. The company has complete cold processing and testing equipment, and has passed ISO9001 and ISO14001 certifications. It is committed to providing professional and reliable optoelectronic products and services.
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