Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

550nm CWL, 12.5mm Dia., Hard Coated OD 4.0 25nm Unmounted Bandpass Filter

TECHSPEC® Unmounted OD 4.0 Bandpass Filters

TECHSPEC® Unmounted OD 4.0 Bandpass Filters

Stock #15-148 In Stock
Additional Bandwidths
- +
Qty 1-5
Qty 6+
Volume Pricing
Request Quote
Get Product Downloads
Diameter (mm):
12.50 ±0.10
Angle of Incidence (°):
Optical Density OD (Average):
Clear Aperture CA (mm):
Center Wavelength CWL (nm):
550.00 ±3
Full Width-Half Max FWHM (nm):
25.00 ±3
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Optical Glass
Minimum Transmission (%):
≥90 (Average over bandwidth)
Hard Coated
Surface Quality:
Thickness (mm):
3.30 ±0.20
Bandpass Filter
Typical Applications:
Acridine Yellow, Magnesium Orange, HiLyte Fluor 555
Blocking Wavelength Range (nm):
200 - 1200
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

  • Center Wavelengths from 365 to 1550nm
  • 10, 25, or 50nm Full-Width Half Maximum Options
  • High Transmission and Deep Blocking
  • Mounted OD 4.0 5nm, 10nm, 25nm and 50nm Bandpass Filters Also Available

TECHSPEC® Unmounted OD 4.0 Bandpass Filters are available with a 10, 25, or 50nm full-width half maximum (FWHM). The narrowband 10nm bandpass filters are ideal for laser line separation, flame photometry, or chemical detection applications. The broadband 25 and 50nm filters are used in a variety of life science and machine vision applications, including preventing photobleaching of fluorophores and improving the signal to noise ratio of imaging systems. TECHSPEC Unmounted OD 4.0 Bandpass Filters are designed with center wavelengths from 365 to 1550nm, covering common laser lines and spectral lines, and provide OD 4.0 blocking outside of their passband. Standard diameter sizes of 12.5 and 25mm facilitate integration into benchtop optical systems or life science instrumentation.