Optical Filters

Custom Size K9 Round Optical Filter

High-performance bandpass filter with 785nm center wavelength, 93% transmittance, and customizable sizes for various applications.

Core attributes

Material
K9
Shape
Round
Size
Custom
Thickness
0.5 mm
Transmittance
93%
Filter Type
bandpass
Cwl
785nm
Fwhm
6nm
Coating
metallic, hard-coat
Transmission bands
NIR (0.7-1.7 μm)

Product facts

Key attributes

Material
K9
Shape
Round
Size
Custom
Thickness
0.5 mm
Transmittance
93%
Filter Type
bandpass
Cwl
785nm
Fwhm
6nm
Coating
metallic, hard-coat
Transmission bands
NIR (0.7-1.7 μm)

Product description

This bandpass filter is designed for applications in fluorescence microscopy, machine vision, and laser systems, featuring a precise 785nm center wavelength and a narrow 6nm FWHM. With a high transmittance of 93%, it ensures optimal signal throughput in near-infrared optical paths. The filter’s OD6 blocking capability effectively suppresses background stray light, making it ideal for Raman detection and fluorescence analysis. The hard-coated K9 substrate enhances durability, ensuring reliable performance in demanding environments.

Key Features

  • Center wavelength of 785nm with a 6nm FWHM for precise spectral fit.
  • 93% peak transmittance ensures high signal throughput.
  • OD6 optical density blocks stray light for enhanced detection.
  • Durable hard-coated K9 substrate for improved environmental resistance.
  • Custom cut sizes available for tailored applications.

Applications

Fluorescence, Machine Vision, Laser, Spectroscopy

Specification Summary

ItemValue
MaterialK9
ShapeRound
SizeCustom
Thickness0.5 mm
Transmittance93%
Filter Typebandpass
Cwl785nm
Fwhm6nm
Coatingmetallic, hard-coat
Transmission bandsNIR (0.7-1.7 μm)

Full Specifications

ParameterValue
Transmittancecustom; 93%
Clear Aperture99%

FAQ

Can I get custom sizes for this filter?

Yes, round and square optical filters can be cut to custom dimensions.

What is the thickness range of this filter?

The filter thickness ranges from 0.5mm to 50.0mm.

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