Import H-K9l/Bk7 Glass Half Ball Lens — Buy in Bulk from Supplier in China

The H‑k9l/bk7 Glass Half Ball Lens is a hemispherical optical element made from N‑BK7 glass. It is designed for use in the ultraviolet to near‑infrared (UV‑NIR) spectrum and provides a short back focal length that reduces the distance to an optical fibre. The lens geometry is a half‑ball shape, which simplifies alignment in fibre‑to‑detector and end‑oscopy systems. Changchun Worldhawk Optoelectronics lists this lens as part of its standard catalogue of half‑ball lenses.

Worldhawk’s product line includes substrates such as Sapphire, CaF2, BaF2, ZnSe and custom‑ordered materials, allowing buyers to select a glass type that matches their wavelength and durability requirements. N‑BK7 glass offers a refractive index of approximately 1.5168 at 587.6 nm and good transmission down to about 350 nm, making it suitable for many laser‑coupling applications. Typical industry practice for half‑ball lenses is to provide diameters ranging from 1 mm to 10 mm with surface flatness around λ/10 at 632.8 nm. Optional anti‑reflection coatings are often applied to improve transmission across the 400‑1100 nm band.

The lens is commonly purchased by manufacturers of fibre‑optic communication equipment, medical endoscopy devices, microscopy accessories, optical pick‑up modules and laser measurement tools. Importers should request the exact diameter, coating specification and any required certifications directly from the supplier, as the listing does not state minimum order quantities or pricing. The supplier is based in Changchun, China and operates under a harbour trust tier; buyers are advised to confirm trade terms such as FOB port, payment method and lead time before placing an order.

Changchun Worldhawk Optoelectronics Co., Ltd. is located at No. 3188 Yangpu Street, Changchun, 130033, China. The supplier holds a harbour trust tier and the platform records a response rate of 0.00, indicating no automated response data is available, so direct communication is required for detailed enquiries.

The company’s catalogue includes spherical ball lenses and half‑ball lenses made from a variety of substrates such as N‑BK7, Sapphire, CaF2, BaF2 and ZnSe, with the option for custom material orders. Their listing highlights applications in laser collimation, fibre‑to‑fibre coupling, solar‑photovoltaic coupling and end‑oscopy, but it does not disclose minimum order quantities, unit pricing or lead‑time, which must be clarified with the supplier.