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Dichroic Filter

Hyperion Optics’s complete range of cost effective dichroic filterrange offers superior transmission, reflection and absorption characteristics.

Key Features:

Sharp transition from reflection to transmission

High transmission in pass band

Hard coatings and no adhesives for long filter life span

All dielectric coated with IBS technology

Factory Standard – Contact us for manufacturing limit or custom specifications

Angle of Incidence: 45.0°

Shortpass Type Transmittance: Tabs>85%

Dimensions: 25.2mm*35.6mm*1.1 mm

Clear Aperture: >95%

Operating Temperature: -45°C ~ 85°C

Physical Durability: MIL-C-48497A

Longpass Type Transmittance: Tabs>90%

Reflection Band: Rabs>98%

Thickness Tolerance: ±0.1 mm

Transmitted Wavefront: 1/4λRMS@633nm (per inch)

Environmental Durability: MIL-STD-810F

Substrate: UV Grade Fused Silica

Dichroic optical filters consist of thin film dielectric coatings on glass and exhibit sharp transitions between transmitted and reflected wavelengths. Dichroic filters are similar to traditional interference filters but differentiate themselves by reflecting all unwanted wavelengths. Consequently our dichroic range also offers minimal absorbance characteristics.

Our dichroic filters are available in longpass, shortpass, bandpass, bandblocking and colour correction types over a range of wavelengths. Dichroic shortpass and longpass filters can also act as hot and cold mirrors respectively.

Dichroic filters can divide natural light from a certain wavelength into two parts, one of which passes through, and the other is reflected or absorbed. Filters that allow longer wavelengths of light to pass through are referred to as long wave pass filters, and filters that allow shorter wavelengths of light to pass through are referred to as short wave pass filters.

The desired spectral range can be achieved by using different dichroic filters.

DichroicLongpassFilters

Cut-OnWavelength

TransmissionWavelength

ReflectionWavelength

WavelengthRange(nm)

WavefrontTolerance

Material

Diameter

400

420-1600

350-375

350-1600

1/4λ

FusedSilica

25

450

470-1600

350-430

350-1600

1/4λ

FusedSilica

25

500

520-1600

350-480

350-1600

1/4λ

FusedSilica

25

550

575-1600

415-515

415-1600

1/4λ

FusedSilica

25

600

625-1600

460-570

460-1600

1/4λ

FusedSilica

25

650

675-1600

495-610

495-1600

1/4λ

FusedSilica

25

700

725-1600

535-600

535-1600

1/4λ

FusedSilica

25

750

780-1600

565-715

565-1600

1/4λ

FusedSilica

25

800

830-1600

600-760

600-1600

1/4λ

FusedSilica

25

850

880-1600

635-805

635-1600

1/4λ

FusedSilica

25

900

935-1600

675-855

675-1600

1/4λ

FusedSilica

25

Hyperion Optics is a leading optics supplier, we provide parabolic mirror design, parabolic reflectors for sale, optical design manufacturingand etc. Contact usto know more about our product.


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