Description
440nm band pass filter narrow band filter custom filter
Specifications
Center Wavelength (CWL): 440 nm ± 2 nm (435 / 445 / 450 nm on request)
Half Bandwidth (FWHM): 10 nm / 20 nm / 30 nm (custom 5–50 nm)
Peak Transmittance (Tpeak): ≥ 45%–65% (all-dielectric; >70% on fused silica)
Blocking Range: 300–1100 nm (or 200–1200 nm on request)
Blocking Level (Cut-off Depth): ≥ OD4 (0.01%) standard; OD5–OD6 optional
Substrate Material: UV Fused Silica (JGS1, preferred for deep UV-blue) or N-BK7 (K9)
Substrate Form: Plano-Plano Filter Window / Plano-Convex Lens with filter coating on flat side / Aspheric Lens + Filter Coating
Substrate Diameter: 10 mm – 150 mm (common Ø12.7 / Ø25.4 / Ø50 mm)
Substrate Thickness: 1.0 / 2.0 / 3.0 mm (windows); per lens design if integrated
Surface Quality: 60-40 / 40-20 Scratch-Dig
Surface Flatness (Window): λ/4 @ 632.8 nm
Parallelism: ≤ 1 arcmin (standard); ≤ 10 arcsec (precision)
Incidence Angle: 0° ± 5° (AOI-tuned design on request)
Coating Durability: Meets MIL-C-675C (humidity, adhesion, wipe resistance)
Factory custom optical filter,can cutom as your required,
please contact our sales manager
Contact: Rebecca Xu
EmailL: rebecca@supplieroptical.com
We are professional manufacture on the optical lenses &lasers for over 20 years experience.
With the advanteges,we offer optical products in the fileds of University laboratory, Industry, Scientific research,Medical treatment, Mechanical equipments, lasers and Construction industry and so on.
We can provide optical lenses, optical prisms, high-precision Powell prisms, right-angle prisms, laser lenses, filters, aspherical lenses, collimating lenses, optical glass lenses, optical reflectors, cylindrical lenses, laser modules, laser heads, optical glued lenses, optical rod mirrors, etc.
Looking forward to communicating whether we have the opportunity to cooperate. For the lens/laser products you need, I would like to quote our competitive price.
Please contact for any custom needs,
Contact:Rebecca Xu
