Home > Optical Filter >

UV Fused Silica Variable Neutral Density Optical Filter 77mm

Product Categories

Fused Silica Optics Co.,LTD

Contact Now

UV Fused Silica Variable Neutral Density Optical Filter 77mm

Brand Name : FSO

Model Number : FSF-1

Certification : ROHS/SGS

Place of Origin : China

MOQ : 1 pcs

Price : Negotiation

Payment Terms : T/T

Supply Ability : 10000pcs/month

Delivery Time : As customer's requirement

Packaging Details : Standard

Material : fused silica or optical glass

Size : customized

Surface quality : 60/40 or better

Diameter Tolerance : 0.0/-0.1mm

Thickness : 0.3-30mm

Bevel : 0.1-0.3mm X45 Degree

Reflective : >85% or specifed

Coating : Available

Contact Now

UV Fused Silica Variable Neutral Density Optical Filter 77mm

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.

ND filters include absorptive and reflective filters,which are used in attenuating lasers and other optical signals. Absorptive filters minimize back reflections, which can be reduced further by adding an antireflection coating to the filter. reflective filters are available with either a BK7 or UV Fused Silica substrate.

Specification

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

Wholesale UV Fused Silica Variable Neutral Density Optical Filter 77mm from china suppliers

UV Fused Silica Variable Neutral Density Optical Filter 77mm Images

Inquiry Cart 0

Send your message to this supplier


*From:	Your email address is incorrect!
*To:	Fused Silica Optics Co.,LTD
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!