GELINDE Optical Co., Ltd.

China

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GELINDE Optical Co., Ltd. is a specialized precision grinding and manufacturing company headquartered in Chongqing, with production roots beginning in Jiangsu Danyang in 2014. The company focuses on the high-precision grinding and lapping of non-metallic spherical products, optical ball lenses, and miniature glass and ceramic spheres.

GELINDE utilizes in-house designed and fabricated multi-batch spherical grinding platforms, accompanied by a dedicated optical metrology division equipped with roundness measuring machines, laser interferometers, and microscopic inspection gear to guarantee uniform spherical roundness, surface finish, and minimal batch variance.

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GELINDE fabricates spherical and plano optical elements across a broad portfolio of glass and engineered ceramic materials:

Glass Ball Lenses: Optical ball lenses, half-ball lenses, micro ball lenses (sub-millimeter sizes), and rod lenses manufactured from N-BK7, optical fused silica (JGS1, JGS2, JGS3, Corning 7980), cubic zirconia crystal, and borosilicate glass.
Precision Technical Glass Spheres: High-precision soda-lime glass balls, borosilicate glass check-valve balls, quartz balls, and ruby sphere probes with diameter tolerances down to micron levels.
Engineered Ceramic Spheres: Precision grinding of silicon nitride (Si₃N₄), alumina (Al₂O₃), zirconia (ZrO₂), and silicon carbide (SiC) ceramic balls for specialized bearings, flowmeters, and fluid valve seats.
Processing Capabilities: In-house raw material slicing, automated rough grinding, fine spherical lapping, chemical-mechanical polishing (CMP), ultra-pure water cleaning, and cleanroom vacuum packaging.

GELINDE Optical Co., Ltd.

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