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Shortpass Filter

Short pass filters are used to transmit wavelengths shorter than the cut-off wavelength of the filter.

Short pass filters are commonly use in life science applications including fluorescence microscopy or for integration into a variety of instrumentation.

These optical filters can also be used as hot mirrors to minimize unwanted heat caused by infrared radiation.

DELN offers a variety of short pass filters with high blocking and maximized transmission.


Specifications


Material

Float glass, B270, BK7, Fused Silica or other

Dimension Tolerance

+0.0/-0.1mm

Thickness Tolerance

±0.2mm

Surface Quality

60/40 or better

Clear Aperture

>90%

Coating

Hard Dielectric Sputtered

Angle of Incidence

0°

Pass Band Transmission

>85% (According to customer's specifications)

Rejection Band Blocking

OD4 (According to customer's specifications)




Cut-On Wavelength (+/-1%)

Rejection Band (nm)

Transmission Band (nm)

400 nm

420-1100

350-390

450 nm

470-1100

350-430

500 nm

520-1100

350-480

550 nm

570-1100

400-530

600 nm

620-1100

400-580

650 nm

670-1100

400-630

700 nm

720-1100

400-680

750 nm

770-1100

400-730

800 nm

820-1100

400-780

900 nm

910-1200

400-880

Other Cut-On Wavelength and specifications are available upon request.



 
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