BG40 Tinted Glass Bandpass Filters are 23.5 mm blue bandpass optical filters made from Schott BG40 filter glass. These bandpass filters are precision polished for demanding research or OEM applications.
Type: Colored Glass Bandpass Filter
Material: Schott BG40 or equivalent
Center wavelength: 495 nm
Dimensional tolerance: ±0.3 mm
Thickness: 1.0 to 2.0 mm, typical
Surface Flatness: ≤2λ at 632.8 nm over the clear aperture
Surface Quality: 60-40 scratch-dig
Damage Threshold: 30 W/cm2 CW, typical
Clear aperture: central ≥ 80% of area
Chamfer: Up to 1 mm face width
Chamfer tolerance: 45° ±15°
Round diameter 23.5mm Thickness 1.0mm BG40 Filter 1PCS
Shipping rates for orders shipped internationally
Standard Shipping from China/Hong Kong/Taiwan to worldwide.--- (Delivery time:11~35 Days )---(Some countries need more than 40 days)
If you need (2-5 days) Fast delivery, please select Express (EMS, FedEx, UPS, DHL). --- (need to pay freight)
We ship within 1~2 business day once payment completed.
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer&x27;s responsibility.
Please check with your country&x27;s customs office to determine what these additional costs will be prior to buying.
Please ensure address information with your payment, Please check your full name and full address (Post Code and phone number is very important for International delivery)
Shipping detail warning notes
If the product is contrary to local customs regulations.please think over again if you really want to buy it before purchase and buyers have the duty to custom clearance.
Russian Buyer should leave your full name or may put you in trouble.
Argent Buyer can only buy twice per year oversea and beyond 25 USD should pay 50% taxes.
European Buyer need EORI Number Especially German.Please leave your EORI NO. when purchase ship in Express.
Brazil Buyer need VAT Number when ship in Express.
Saudi Arabia Buyer ship in Express need a copy file of the recipient of the valid identity (take a clear photo and upload it in leaving a note for me to print out) etc.