Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Global industrial sourcing · Houston, Texas info@mropartsrfq.com
Reference imageConfirm configuration by manufacturer part number.
Thorlabs
LB7639-E3
Thorlabs LB7639-E3 — Ø1/2" ZnSe Bi-Convex Lens, f = 20.0 mm, AR-Coated: 7 - 12 µm
The Thorlabs LB7639-E3 is a Ø1/2" Zinc Selenide (ZnSe) bi-convex lens featuring a focal length of 20.0 mm and an anti-reflective coating optimized for the 7 to 12 µm spectral range. Released on June 13, 2017, this optical component has a package weight of 0.04 lbs each. Submit the exact part number, quantity, and application requirements to request a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Thorlabs references — within one business day.
- Manufacturer
- Thorlabs
- Part number
- LB7639-E3
- Product series
- Ø1/2" ZnSe Bi-Convex Lens, f = 20.0 mm, AR-Coated: 7 - 12 µm
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to LB7639-E3.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Product Name
- Ø1/2" ZnSe Bi-Convex Lens, f = 20.0 mm, AR-Coated: 7 - 12 µm
- Lifecycle Status
- Refer to current manufacturer documentation
- Release Date
- June 13, 2017
- Package Weight
- 0.04 lbs Each
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Thorlabs LB7639-E3. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.