Import Cylindrical Lens — Buy in Bulk from Supplier in China

Cylindrical lenses from Golddragonoptics Co. are precision optical components made from optical glass, designed to focus or expand light in a single axis. These lenses are used to correct astigmatism in imaging systems and to shape laser beams in industrial applications. The source data does not specify the glass type, but standard materials include N-BK7, fused silica, or SF11, depending on wavelength and thermal requirements.

The lenses are manufactured to tight tolerances for surface figure and surface quality, typical for industrial-grade optics. No coating data is provided, but anti-reflective coatings are commonly applied for laser wavelengths between 400 nm and 1100 nm. Surface roughness is typically under 50 angstroms, and center thickness tolerance is usually ±0.05 mm for standard lenses. Dimensional customization is possible, but exact capabilities must be confirmed with the supplier.

These lenses are sourced by manufacturers of laser cutting systems, barcode scanners, and medical imaging devices. Buyers often require focal lengths from 5 mm to 200 mm, with diameters between 5 mm and 50 mm. Orders are typically placed in quantities of 10 to 100 units per batch. Packaging is usually in foam-lined cases with individual compartments to prevent scratching. Incoterms such as FOB Changchun are common, but lead time and MOQ must be confirmed directly.

Golddragonoptics Co. is located in Changchun, Jilin, China, a region known for optical manufacturing and research. The supplier is classified as imported with a harbor trust tier, indicating export documentation has been verified. No details on years in business, workforce size, or laboratory certifications are provided. The listing does not mention ISO 9001, optical testing equipment, or in-house metrology capabilities.

The company appears to focus on producing standard and custom optical components, with cylindrical lenses as one of several product lines. There is no indication of design support, prototyping services, or technical documentation beyond the product description. Response metrics are not recorded, suggesting limited buyer interaction. Buyers should assume this is a manufacturing or trading entity without published quality systems and request test reports for each batch.