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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

370nm CWL, 25mm Dia, 36nm Bandwidth, Unmounted OD 6 Fluorescence Bandpass Filter

Stock #18-385 10 to 12 days
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Diameter (mm):
25.00 ±0.1
Angle of Incidence (°):
0 ±5
Bandwidth (nm):
OD 6 Blocking Wavelength Range (nm):
250 - 340 & 394 - 800
Optical Density OD (Average):
Clear Aperture CA (mm):
Center Wavelength CWL (nm):
Full Width-Half Max FWHM (nm):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Minimum Transmission (%):
Hard Coated
Surface Quality:
Thickness (mm):
2.00 ±0.1
Bandpass Filter
Blocking Wavelength Range (nm):
250 - 1100
Transmitted Wavefront, RMS:
λ/4 (prior to coating)
Compatible Fluorophore:
Sirius Excitation
Environmental Durability:
Humidity per MIL-STD-810H, Section 507.6
Temperature per MIL-STD-810H, Section 501.7 and 502.7
Physical Durability:
Adhesion per MIL-PRF-13830B, Section C.4.5.12
Moderate abrasion per MIL-PRF-13830B, Section C.4.5.11
Cleaning per MIL-C-48497A Section
Protective bevel as needed

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 240:

Product Family Description

TECHSPEC® Unmounted Fluorescence Bandpass Filters are designed with center wavelengths and bandwidths that match the excitation and emission wavelengths of common fluorophores. These filters feature high transmission up to >93% in their passband with deep >OD 6.0 blocking outside of their passband, resulting in high contrast images when used in fluorescence imaging systems. The low transmitted wavefront error of these filters further enhances image quality by minimizing image distortion. TECHSPEC Unmounted Fluorescence Bandpass Filters are available with a 12.5 or 25mm diameter and are ideal for integration into life science and biotech instrumentation including polymerase chain reaction (PCR) testing platforms, DNA sequencers, fluorescence detectors, flow cytometers, and fluorescence imaging systems.

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