Optical Filters

25 mm K9 Optical Filter

High-quality Longpass filter (550nm, 95% transmittance) for medical applications. Custom sizes and low MOQ available.

Core attributes

Material
K9
Size
25 mm
Thickness
Custom
Surface Quality
20/10
Transmittance
95%
Filter Type
longpass
Cwl
550nm
Transmission bands
VIS (400-700 nm)
MOQ
1 piece for sapphire window

Product facts

Key attributes

Material
K9
Size
25 mm
Thickness
Custom
Surface Quality
20/10
Transmittance
95%
Filter Type
longpass
Cwl
550nm
Transmission bands
VIS (400-700 nm)
MOQ
1 piece for sapphire window

Product description

The Longpass filter is designed for applications in the medical field, effectively allowing wavelengths above 550 nm to pass while blocking shorter wavelengths. With a transmittance of 95%, this filter ensures high light throughput, making it suitable for fluorescence microscopy and other optical applications. Its robust K9 glass construction provides durability, while the 20/10 surface quality ensures minimal distortion. Originating from Zhejiang, this filter can be sourced with low minimum order quantities, making it an ideal choice for both prototyping and bulk needs.

Key Features

  • Transmittance of 95% ensures optimal light passage for medical applications.
  • Longpass filter type effectively blocks wavelengths below 550 nm.
  • Surface quality rated at 20/10 for minimal optical distortion.
  • Available with a minimum order quantity of just 1 piece.
  • Customizable support including OEM, ODM, and OBM options.

Applications

Medical

Specification Summary

ItemValue
MaterialK9
Size25 mm
ThicknessCustom
Surface Quality20/10
Transmittance95%
Filter Typelongpass
Cwl550nm
Transmission bandsVIS (400-700 nm)
MOQ1 piece for sapphire window

Full Specifications

ParameterValue
Transmittance95%; >80%~90%
Customized SupportOEM, ODM, OBM
Warranty1 Year
NameLongpass filter
Parallelism30 arc sec
Clear Aperture>90%
Moq1 piece for sapphire window
Bevel0.1-0.5mm
Tolerance±0.05

FAQ

What is the minimum order quantity?

The minimum order quantity is 1 piece for the sapphire window.

What is the tolerance for this filter?

The tolerance for this filter is ±0.05.

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