SP675 Shortpass Filter (T＞90%@400-650nm, OD2@700-1100nm)

SP675 Shortpass Filter - Optimal Red Wavelength Control

The SP675 Shortpass Filter delivers excellent optical performance with high transmission across the visible spectrum and reliable OD2 blocking, making it ideal for applications requiring precise red wavelength control with effective red to near-infrared rejection.

Key Specifications:

• Cut-off Wavelength: 675nm (T=50%)
• High Transmission Range: T>90% @ 400-650nm
• Reliable Blocking Range: OD2 @ 700-1100nm
• Optical Density: >100:1 blocking ratio
• Visible Coverage: 250nm transmission bandwidth

Applications & Benefits:

• Red Wavelength Spectroscopy: Perfect for analyzing blue to red wavelengths while blocking deep red and NIR
• Color Science Applications: Eliminates infrared contamination for accurate color measurements
• Fluorescence Microscopy: Prevents red and NIR excitation bleed-through in multi-color imaging
• Machine Vision: Enhances image quality by filtering red and infrared interference
• LED Characterization: Ideal for testing visible LEDs while blocking red and NIR components

Technical Advantages:

• High transmission efficiency across blue to red spectrum maximizes signal
• Reliable OD2 blocking prevents detector saturation from longer wavelengths
• Sharp transition at 675nm for precise red wavelength control
• Complete visible spectrum coverage for comprehensive analysis
• Cost-effective solution for standard red blocking requirements
• Durable multi-layer coating ensures consistent performance

Perfect for researchers and engineers working with visible wavelengths who need reliable red and infrared blocking. This filter provides the high transmission efficiency and reliable blocking performance required for color science, fluorescence imaging, and optical systems where accurate visible light transmission with effective red to infrared rejection is essential.