SP650 Shortpass Filter (T＞95%@400-640nm, OD5@665-1100nm)

SP650 Shortpass Filter - High-Performance Optical Control

The SP650 Shortpass Filter delivers exceptional optical performance with outstanding OD5 blocking, making it ideal for applications requiring precise wavelength control and superior infrared rejection in the red and near-infrared spectrum.

Key Specifications:

• Cut-off Wavelength: 650nm
• High Transmission Range: T>95% @ 400-640nm
• Excellent Blocking Range: OD5 @ 665-1100nm
• Optical Density: >100,000:1 blocking ratio
• Blocking Bandwidth: 435nm range

Applications & Benefits:

• Fluorescence Microscopy: Eliminates red and NIR excitation light for clean emission detection
• Laser Line Filtering: Blocks common red laser wavelengths (670nm, 685nm, 780nm)
• CCD/CMOS Protection: Prevents sensor damage from infrared radiation
• Spectroscopy Applications: Ensures clean spectral measurements by removing unwanted wavelengths
• Machine Vision: Enhances image contrast by filtering infrared interference

Technical Advantages:

• Excellent OD5 blocking - 100,000:1 rejection ratio
• Sharp transition edge at 650nm for precise spectral separation
• High transmission efficiency preserves signal strength
• Wide blocking range covers multiple laser lines
• Low fluorescence background for sensitive applications
• Durable multi-layer coating ensures long-term stability

Perfect for researchers and engineers working with red and near-infrared wavelengths who need reliable blocking performance. This filter provides the precision and blocking power essential for fluorescence imaging, laser safety, and optical instrumentation applications.