Name: 1100nm, 25mm Diameter, Dichroic Longpass Filter
Brand: TECHSPEC
SKU: 87-042
Price: ₹14,450.00

Diameter (mm):

25.00 +0.0/-0.1

Angle of Incidence (°):

Cut-On Wavelength (nm):

1100.00

Fused Silica (Corning 7980)

Coating:

Hard Coated

Reflection (%):

>97, Average Polarization
>95, Absolute Polarization

Reflection Wavelength (nm):

825 - 1045

Surface Quality:

60-40

Thickness (mm):

1.05

Thickness Tolerance (mm):

±0.1

Transmission (%):

>85, Average Polarization
>80, Absolute Polarization

Transmission Wavelength (nm):

1135 - 1600

Type:

Dichroic Filter

Dimensional Tolerance (mm):

+0.0/-0.2

Transmitted Wavefront Tolerance:

λ/4

Cut-On Tolerance (%):

±2

Slope Factor (%):

3.00

Wavelength Range (nm):

825 - 1600

Wavelength Range (μm):

0.825 - 1.6

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 233:

Compliant

Product Family Description

Ideal for Fluorescence or Multispectral Imaging
Sharp Cut-On Wavelength
Broad Transmission and Reflection Ranges

Our TECHSPEC® Dichroic Longpass Filters are designed for a 45° angle of incidence. The rejected light is reflected at 90°, making these filters ideal for use in fluorescence applications or as spectral beamsplitters. These hard coated filters feature low polarization dependence, broad spectral ranges, and a precision fused silica substrate. Reflection and transmission curves are available to easily integrate TECHSPEC® Dichroic Longpass Filters into any application.

Hard coatings are used to increase durability while maintaining performance. The hard coating provides Dichroic Longpass Filters with high resistance to humidity, temperature, and abrasion, while also reducing the risk of damage when being handled.

Filter Type	Transmitted Wavefront (RMS)	Surface Quality	Surface Flatness (P-V)	R(avg)	T(avg)
HP Dichroic	λ/10	40-20	λ/2	>98%	>90%
Fluorescence Dichroics	1λ	60-40	-	>98%	>90%
Dichroic Longpass	λ/4	40-20	-	>97%	>85%

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