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

675nm 12.5mm Dia., High Performance Longpass Filter

High Performance OD 4.0 Longpass Filters

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Stock #84-741 5 In Stock
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£159.20
Volume Pricing
Qty 1-5 £159.20 each
Qty 6-25 £127.20 each
Qty 26-49 £119.40 each
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Prices shown are exclusive of VAT/local taxes
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Specifications

General

Type:
Longpass Filter
Note:
Arrow on part indicates filter coated surface.

Physical & Mechanical Properties

Diameter (mm):
12.50 +0.0/-0.2
Thickness (mm):
2.00 ±0.1
Clear Aperture (%):
>80
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 4.5.4.2

Optical Properties

Angle of Incidence (°):
0
Optical Density OD (Average):
≥4.0
Cut-On Wavelength (nm):
675.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Coating:
Hard Coated
Rejection Wavelength (nm):
200 - 662
Surface Quality:
60-40
Transmission (%):
≥91
Transmission Wavelength (nm):
685 - 1650
Transmitted Wavefront, RMS:
≤λ/4 @ 633nm (prior to coating)
Cut-On Tolerance (%):
±1
Slope Factor (%):
<1
Coating Specification:
Surface 1: Hard Dielectric Sputtered
Surface 2: AR Coated
Wavelength Range (nm):
200 - 1650

Environmental & Durability Factors

Environmental Durability:
Humidity per MIL-STD-810H, Section 507.6
Temperature per MIL-STD-810H, Section 501.7 and 502.7

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 247:
Compliant
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Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

Product Details

TECHSPEC® High Performance OD 4.0 Longpass Filters feature high transmission in the pass band combined with superior blocking in the rejection band. Due to a rejection band optical density of 4.0 combined with >91% in the pass band, these filters are ideal for a wide variety of applications. TECHSPEC® High Performance OD 4.0 Longpass Filters are hard coated, with a hard dielectric sputtered as the first surface and AR coating as the second. Eliminate stray light by creating custom bandpass filters when combined with TECHSPEC® High Performance Shortpass Filters.

Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value.

 TECHSPEC® Rotating Filter Wheel can be used for applications requiring a variety of filters.

Technical Information

Compatible Mounts

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