Dichroic Longpass Filter | GU OPTICS
Dichroic Longpass Filter
Dichroic filters are used to transmit wavelengths that longer than the cut-on wavelength or shorter than the cut-off wavelength. Depending on the wavelength range of reflection or transmission, they are divided into long pass filter and short pass filter. Dichroic filters are ideal for applications of fluorescence excitation spectrum measurement, beam splitting or beam combination. Compared with the traditional design of long pass filter and short pass filter (0° angle of incidence) , Dichroic filters are designed for a 45° angle of incidence, which separate the reflection and transmission bands in space, and make it widely used in various optical systems and laboratory optical path.
Dichroic Longpass Filter
Material Optical Grade Float Glass
Transmitted Wavefront error λ/ 4 @ 633 nm
Parallelism <30 arcsec
Surface Quality 40-20
Dimensional Tolerance +0.0/-0.1mm
Thickness 2mm ±0.2mm
*Central Wavelength Tolerance ±10nm
**Transmission Tavg>90%
** Reflection Ravg>98%
CA >90%
Angle of Incidence 45°
Pro No.
Parameter
Dia
CWL
Reflection Wavelength
Transmission Wavelength
Delivery time
Compare
Price
Purchase
Φ12.5mm
425nm
370~400nm
440~1200nm
In stock
$32.50
Φ12.5mm
450nm
370~430nm
465~1200nm
In stock
$32.50
Φ12.5mm
500nm
370~480nm
515~1200nm
In stock
$32.50
Φ12.5mm
550nm
385~520nm
565~1200nm
In stock
$32.50
Φ12.5mm
600nm
460~570nm
620~1200nm
In stock
$32.50
Φ12.5mm
650nm
495~615nm
670~1200nm
In stock
$32.50
Φ12.5mm
700nm
535~665nm
720~1200nm
In stock
$32.50
Φ12.5mm
750nm
565~715nm
770~1200nm
In stock
$32.50
Φ12.5mm
800nm
600~760nm
820~1200nm
In stock
$32.50
Φ12.5mm
850nm
635~810nm
870~1200nm
In stock
$32.50
12.5x17.5mm
425nm
370~400nm
440~1200nm
In stock
$35.83
12.5x17.5mm
450nm
370~430nm
465~1200nm
In stock
$35.83
12.5x17.5mm
500nm
370~480nm
515~1200nm
In stock
$35.83
12.5x17.5mm
550nm
385~520nm
565~1200nm
In stock
$35.83
12.5x17.5mm
600nm
460~570nm
620~1200nm
In stock
$35.83
12.5x17.5mm
650nm
495~615nm
670~1200nm
In stock
$35.83
12.5x17.5mm
700nm
535~665nm
720~1200nm
In stock
$35.83
12.5x17.5mm
750nm
565~715nm
770~1200nm
In stock
$35.83
12.5x17.5mm
800nm
600~760nm
820~1200nm
In stock
$35.83
12.5x17.5mm
850nm
635~810nm
870~1200nm
In stock
$35.83

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