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UV Long Wave Pass Optical Edge Filter with Thin Dielectric Films

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Fused Silica Optics Co.,LTD

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UV Long Wave Pass Optical Edge Filter with Thin Dielectric Films

Brand Name : FSO

Model Number : FSOF01

Place of Origin : China

MOQ : 1pcs

Price : Negotiation

Payment Terms : T/T

Supply Ability : 10000/per month

Delivery Time : 5-8 work days

Packaging Details : Protective packaging

Material : JGS1,fused silica or optical material

Diameter Tolerance : ±0.01mm

ncThickness Tolerae : ±0.1mm

Clear aperture : >90

Surface Quality : 20/10

Coating : Coating Specified by customers

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UV Long Wave Pass Optical Edge Filter with Thin Dielectric Films

Absorption and particularly wavelength selective absorption is an important factor in the function of the filters. The two most commonly used absorbers are thin metallic films which are particularly insensitive to wavelength for absorption and colored glasses which absorb wavelengths varied by as much as several orders of magnitudes in only tens of nanometers. Interference filters are multilayer dielectric thin film devices. Metallic films, colored glasses and thin dielectric films are used in Fused Silica Optics filters.

UV Long Wave Pass Optical Edge Filter with Thin Dielectric Films

Bandpass filter plate are divided into short-pass and long-pass filters according to whether they transmit below or above the transition wavelength. The transition wavelength or cut-on/off wavelength is the wavelength at which the transmission is 50% of its peak value.

Specifications

Substrate material	UV Grade Fused Silica or BK7
Diameter	25.0 +0~-.025 mm
Thickness	3 ± 0.5 mm
Min. clear aperture	>85% of diameter
Transmission	>90% average within specified range
Attenuation	>99% average within specified range
Angle of incidence	0° ± 5°
Coating Technology	Electron beam evaporation, dielectric multilayers
Surface quality	40/20 per MIL-O-13830B
Wedge	<3 minutes
Wavefront distortion	≤1λ @ 633nm per 25mm
Humidity resistance	Per MIL-C-675A
Abrasion resistance	Per MIL-C-675A
Optimum temperature	23°C
Temperature limits	-50°C to 100°C
Certification	Spectrophotometer print of lot sample
Cleaning	Non-abrasive method, isopropyl alcohol on lens tissue recommended
Laser Induced Damage Threshold(LIDT)	>3J/cm2 (1.06μm, 1ns)
Surface quality	20/10 per MIL-O-13830B

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