Longpass FiltersFilters
Protective Filters- LP Series
Often referred to as a “sharp-cut” filter, Longpass Filters are specifically designed to pass a broad spectrum of longer wavelength light while blocking shorter wavelengths.
Overview
Longpass Filters
Often referred to as a “sharp-cut” filter, Longpass Filters are specifically designed to pass a broad spectrum of longer wavelength light while blocking shorter wavelengths.
- ◆Economical solution for isolating specific spectral regions
- ◆Peak transmission ≥90%
- ◆StablEDGE® design reduces angular dependency and minimizes short-shifting effects
- ◆Anti-reflection coated for maximum transmission in VIS and NIR spectrums
- ◆Can be used with Shortpass Filters for a custom, fine-tuned Bandpass Filter
- ◆Double-side polished glass for exceptional parallelism and optical flatness
- ◆Exceptional surface quality; 40/20 scratch/dig
- ◆Available in wavelength ranges from 350nm to 1500nm
| Part No | Description | Useful Range | Cut-on 50% T |
|---|---|---|---|
| ➡LP170 | Fused Silica Protective Window | 200-2300nm | - |
| ➡LP171 | Fused Silica Multi-Layer Vis A/R Coated Protective Window | 380-900nm | - |
| ➡LP190 | Sapphire Protective Window | 250-2300nm | - |
| ➡LP285 | Borofloat® Multi-Layer VIS A/R Coated Protective Window | 350-1100nm | 285nm |
| ➡LP286 | Borofloat® Oleophobic VIS A/R Coated Protective Window | 350-1100nm | 340nm |
| ➡LP330 | Industrial-Grade Glass Protective Window | 350-1100nm | 320nm |
| ➡LP340 | Industrial-Grade Multi-Layer VIS A/R Coated Glass Protective Window | 350-800nm | 340nm |
| ➡LP341 | Industrial-Grade Oleophobic VIS A/R Coated Glass Protective Window | 365-1100nm | 335nm |
| ➡LP345 | Precision Multi-Layer VIS A/R Coated Glass Protective Window | 350-800nm | 340nm |
| ➡LP347 | Near-IR A/R Coated Glass Protective Window | 690-1090nm | 360nm |
| ➡LP389 | Precision Multi-Layer VIS + NIR A/R Coated Glass Protective Window | 400-1100nm | 380nm |
| ➡LP390 | UV-Absorbing Protective Window | 410-1100nm | 380nm |
| ➡LP415 | UV Block A/R Protective Window | 415-1100nm | 415nm |
| ➡LP418 | UV Block A/R Protective Window | 425-1100nm | 418nm |
| ➡LP8000 | Germanium DLC Coated LWIR Protective Window | 7500-12500nm | 5235nm |
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