Self-Focusing Lens
The refractive index of a self-focusing lens decreases radially, continuously refracting axially propagating light so that emerging rays converge smoothly to one point. In practice it can couple a large parallel beam into a fiber, collimate emerging light into a parallel beam, or couple light from one fiber into another as required. It is therefore widely used in optical devices.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Transmittance [Wavelength Range 380-1550nm] | ≥89 |
| Maximum Pitch [Length Z＝2π P/] | 0.75P |
| Effective Clear Diameter [Lens Diameter] | Lens Diameter 60-70% |
| Tolerance [Same Furnace and Same Batch] | ≤0.75% |
| Tolerance [Different Furnaces and Different Batches] | ≤2.5% |
| Lens Diameter Tolerance | ﹢0.005/-0.010mm |
| Lens Length Tolerance [Maximum Mechanical and Polishing Tolerances] | ﹢0/-0.04mm |
| Lens Length Tolerance [Adjusted According to Changes; Standard Length] | 2.5% Standard Length |
| End Face Angle | 0、2、4、6、8、13° |
| End Face Perpendicularity [max] | 6 mrad max |
| Thermal Expansion Coefficient | 10x10-6/℃ |
| Temperature [Wavelength Range 380-1550nm] | 350℃ |
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Key Features
Datasheet
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Supplier Information
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