Products Description

BP1245nm Bandpass Filter | CWL 1245nm±2nm, FWHM 14±2nm
The BP1245nm Bandpass Filter is a high-performance SWIR optical filter engineered for precise wavelength selection around 1245nm. With peak transmission greater than 90 percent, a narrow bandwidth of 14nm, and average optical density greater than OD3 across the 900-1720nm blocking range, this filter effectively isolates target wavelengths while suppressing unwanted background radiation. It is particularly suited for short-wave infrared imaging, laser-based measurement systems, and industrial optical sensing applications.
Technical Specifications
| BP1245nm Bandpass Filter Specifications | |
|---|---|
| Product Type | Bandpass Filter |
| Center Wavelength (CWL) | 1245nm ±2nm |
| Bandwidth (FWHM) | 14nm ±2nm |
| Transmission Range | 1244nm - 1246nm |
| Peak Transmission | Greater than 90 percent |
| Blocking Range | 900nm - 1720nm |
| Blocking Level | Average Optical Density greater than OD3 |
| Angle of Incidence | 0 Degree |
| Coating Technology | Hard-Coated Multilayer Thin Film |
| Substrate Material | Optical Glass |
Applications
The BP1245nm filter is optimized for SWIR systems that require accurate wavelength discrimination and high signal integrity. Typical applications include:
Short-wave infrared 3D laser profile measurement
Laser triangulation and displacement sensing
Industrial dimensional inspection systems
Surface contour and geometry analysis
SWIR machine vision platforms
Optical metrology and automation equipment
In demanding inspection environments, this Narrow Bandpass Filter design improves contrast and measurement accuracy by minimizing unwanted spectral interference. It is widely used in advanced SWIR Optical Filter systems where precise wavelength control is critical. For industrial automation applications, integration with a Machine Vision Filter solution can further enhance detection performance and repeatability.
Customization & Service
OPTOStokes offers extensive customization options to support OEM integration and specialized optical system requirements. Filters are available in round, square, rectangular, and custom geometries. Optional retaining rings and mounted assemblies can be supplied for simplified system integration.
Customization services include wavelength adjustment, bandwidth optimization, enhanced blocking performance, substrate selection, thickness modification, and dimensional tolerances tailored to specific project requirements. Extensive inventory availability, controlled lead times, and rigorous quality assurance help accelerate development cycles and reduce procurement risks.
Pain Points & Technical Support
Many engineering teams encounter challenges such as inconsistent filter performance, limited customization capabilities, prolonged lead times, and insufficient technical support during product development. These issues can negatively impact measurement accuracy and project schedules.
OPTOStokes provides both standard and custom optical filter solutions designed for demanding SWIR applications. If you are developing a 3D laser profiling system, machine vision platform, or precision optical measurement instrument, contact our technical team at sales@optofilters.com or submit an inquiry through www.optofilters.com for engineering support and quotation assistance.
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Tags: optical filter narrow bandpass filter machine vision SWIR filter industrial inspection 1245nm bandpass filter 3D profiling laser measurement