Optical Filters

Custom Size Fused Silica Optical Filter

Longpass filter at 785 nm with 90% transmittance, ideal for spectroscopy applications. Custom sizes available.

Core attributes

Material
Fused Silica
Size
Custom
Thickness
Custom
Transmittance
90%
Filter Type
longpass
Cwl
785nm
Coating
hard-coat
Transmission bands
NIR (0.7-1.7 μm)
MOQ
1 Piece

Product facts

Key attributes

Material
Fused Silica
Size
Custom
Thickness
Custom
Transmittance
90%
Filter Type
longpass
Cwl
785nm
Coating
hard-coat
Transmission bands
NIR (0.7-1.7 μm)
MOQ
1 Piece

Product description

The longpass filter with a center wavelength of 785 nm is designed for applications in spectroscopy, effectively allowing wavelengths longer than 785 nm to pass while blocking shorter wavelengths. With a high transmittance of 90% and excellent blocking depth (OD>6 at 785 nm), this filter ensures optimal performance in fluorescence and other optical applications. The hard-coat surface enhances durability, making it suitable for various environmental conditions.

Key Features

  • High transmittance of 90% ensures maximum light throughput for accurate measurements.
  • Longpass filter type effectively blocks wavelengths below 785 nm, enhancing signal quality.
  • Durable hard-coat coating provides resistance to environmental factors, ensuring longevity.
  • Custom sizes available, including D8, D10, D12, and more, to fit specific application needs.
  • Minimum order quantity of just 1 piece allows for prototyping and small-scale projects.

Applications

Spectroscopy

Specification Summary

ItemValue
MaterialFused Silica
SizeCustom
ThicknessCustom
Transmittance90%
Filter Typelongpass
Cwl785nm
Coatinghard-coat
Transmission bandsNIR (0.7-1.7 μm)
MOQ1 Piece

Full Specifications

ParameterValue
Transmittance90%; T>90%; >90%
Customized SupportOEM, ODM
Warranty1 Year
SubstrateFused Silica or Customer Design
Wavelength785nm
BlockingOD>6@785nm
Slope95%~OD6<5nm
Size(Mm)D8,D10,D12,D12.5,D12.7,D15,D25,D25.4 or D50,Customer Design
Moq1 Piece

FAQ

Can I get custom sizes for this filter?

Yes, custom sizes are available including D8, D10, D12, and others.

What is the minimum order quantity?

The minimum order quantity is 1 piece.

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