Optical Filters

Custom Size BK7 Optical Filter

640nm Long Pass Dichroic Filter with 80% transmittance and OD4 blocking. Custom sizes available, MOQ of 1 piece.

Core attributes

Material
BK7
Size
Custom
Thickness
Custom
Transmittance
80%
Filter Type
dichroic
Cwl
640nm
Coating
hard-coat, iad-pvd
Transmission bands
VIS (400-700 nm)
MOQ
1 Piece

Product facts

Key attributes

Material
BK7
Size
Custom
Thickness
Custom
Transmittance
80%
Filter Type
dichroic
Cwl
640nm
Coating
hard-coat, iad-pvd
Transmission bands
VIS (400-700 nm)
MOQ
1 Piece

Product description

The 640nm Long Pass Dichroic Filter is designed for applications requiring high transmittance and effective blocking of unwanted wavelengths. With a transmittance of 80% and over 90% from 415-1200 nm, this filter is ideal for fluorescence microscopy and face identification. The hard-coat and IAD-PVD coatings ensure durability and reliability in various environments, making it suitable for demanding applications.

Key Features

  • Transmittance of 80%; >90% from 415-1200 nm enhances signal clarity.
  • OD4 blocking from 200-615 nm prevents interference from unwanted wavelengths.
  • Custom sizes available including D8, D10, D12, and more for versatile applications.
  • Durable hard-coat and IAD-PVD coatings ensure long-lasting performance.
  • Low MOQ of 1 piece allows for prototyping and small-scale projects.

Specification Summary

ItemValue
MaterialBK7
SizeCustom
ThicknessCustom
Transmittance80%
Filter Typedichroic
Cwl640nm
Coatinghard-coat, iad-pvd
Transmission bandsVIS (400-700 nm)
MOQ1 Piece

Full Specifications

ParameterValue
Transmittance80%; >90% @415-1200
Customized SupportOEM
Warranty1 years
ItemLong Pass Filter
ProcessIAD Hard Coating
SubstrateBK7,K9, Fused Silicon
Wavelength640nm
BlockingOD4 @200-615
Size(Mm)D8,D10,D12,D12.5,D12.7,D15,D25,D25.4 or Customer Design
Moq1 Piece
UseFace Identification,and so on

FAQ

Can I get custom sizes?

Yes, custom sizes are available including D8, D10, D12, D12.5, D12.7, D15, D25, and D25.4.

What is the minimum order quantity?

The minimum order quantity is 1 piece.

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