H-K9L Positive Meniscus Lens GLM1-050B-150-NIR
A Meniscus Lens Is Convex-Concave, with One Outward-Convex and One Inward-Concave Surface; If the Outward Curvature Exceeds the Inward Curvature, It Has Positive Focal Length and Functions as a Magnifier
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Finely annealed H-K9L optical glass |
| Design Wavelength | 587.6nm |
| Diameter Error | +0.0/-0.1 |
| Center-thickness error | ±0.1 mm |
| Surface-figure irregularity [@632.8nm] | λ/4@632.8nm |
| Clear Aperture Dimension | >90% |
| Focal Length Error | ±1% |
| Lens centering error | ≤3′ |
| Surface Finish | 40/20 |
| Edge Bevel [45°] | 0.2mmx45° |
| Diameter | 50.80 mm |
| Center Thickness Tc | 7.29 mm |
| Edge thickness Te | 2.70 mm |
| Focal Length EFL | 150.0 mm |
| Back focal length BFL | 141.7 mm |
| S1 surface curvature R1 (convex) | 47.87 |
| S2 surface curvature R2 (concave) | 119.32 |
| Optical power | +6.7 1/m |
| Coating | Ravg<0.5% @650~1050nm |
| RoHS | Compliant with standards |
Key Features
Datasheet
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