Dielectric Short-wave Pass Filter Dia 12.5/25/50mm Optical Band-pass Cut-off Filter 400-1100nm B270 Glass
Product details:
Material: Optical grade float glass (B270)
Transmission wavefront error: wavelength/4 @ 633nm
Parallel difference: less than 30 seconds
Surface finish: 3-4 levels
Size error:+0.0/-0.1mm
Thickness: 2mm+0.2mm
Center wavelength: ± 2%
Transmittance: Tavg>85%
Depth of cut-off band: OD2
Cutoff band steepness:<3%
Effective aperture:>90%
Incident angle: 0 °
Center wavelength: The wavelength position with a transmittance of 50%
Cutoff band steepness: (λ (t80%)- λ (t10%))/ λ (t10%) * 100%
（We are good at customizing various filters, if you need other types of filters, please feel free to contact me.）
Note:
Short wave pass filters are manufactured by coating high-quality optical substrates. It has the advantages of high conversion steepness and high transmittance. It can be widely used in fluorescence spectroscopy, Raman spectroscopy, spectral grouping applications, and astronomical observation applications. Due to the use of high-quality optical substrates, this type of filter can also be widely used in imaging optical systems, machine vision system applications, to eliminate interference light outside the available band, greatly improving imaging clarity, as well as the sensitivity of the system.Customized product
Company Information
Payment:
1.We only accept payments from PayPal and all major credit cards accepted by Paypal.For payment issues, please contact us first.
2.We are not responsible for any custom duty or import tax.
3.We will leave POSITIVE FEEDBACK after receiving the payment. Please contact us if you are not satisfied with the item after receive it.We will reply to you as soon as possible.
Shipping:
1. Items will be shipped within 1-10 business days on payment received.
2. If you want to buy more than the "available quantity", please contact us.
3. We ship it from China, please understand the time it will take for international transportation.Delivery time depends on destination and other factors, it may takes up to 25 business days.
4. If you want us to ship it by the express such as EMS/DHL/FedEx in order that you could receive it very soon, please contact us in advance, we could send you an invoice with the EMS/DHL/UPS/FedEx shipping fee.
5. If you have any questions, please contact us directly.
About Us：
1.We are a professional manufacturer of optical components, such as lenses, windows, spherical lenses, filters, and cylindrical lenses.If you need something else, please leave a message.
2. Welcome to inquire or send us an email, we will provide you with the best price and quality service.
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3.You can contact me if you have any questions.
