Precision Short-Pass Filters
Featured Product from Daheng New Epoch Technology, Inc.
Optical short-pass filters from Daheng New Epoch Technology, Inc. are made with high-quality fused silica substrate. These filters efficiently transmit light shorter than the cut-off wavelength and effectively block light longer than the cut-off wavelength. They perform exceptionally well in precision optical applications and are widely used in various scientific and industrial fields.
- Substrate: Fused silica
- Dimension Tolerance: +0/-0.2 mm
- Thickness: 4+/-0.2 mm
- Parallelism: <3‘
- Flatness: λ/4
- Surface Quality: 40-20 scratch-dig
Features and Applications:
- High Transmission Rate: T≥85%
- Effective Blocking: T≤1%
- Clear Aperture: 90% Diameter
Models and Specifications:
| Part No. | Transmission Band | Blocking Band | Cut-off Wavelength | λT=80%-λT=10% | Diameter |
|---|---|---|---|---|---|
| GCC-211002 | 400-630 nm | 675-850 nm | 650 nm | 9 nm | ø25.4 mm |
| GCC-211004 | 400-820 nm | 910-1110 nm | 850 nm | 17 nm | ø25.4 mm |
| GCC-211005 | 450-910 nm | 1025-1235 nm | 950 nm | 20 nm | ø25.4 mm |
Applications:
- Research laboratories
- Industrial inspection
- Precision optical equipment
