Hangzhou Mdk Opto Electronics Co.,Ltd., together with its subsidiaries, engages in the research, manufacture, and sale of optoelectronics, semiconductor optics, semiconductor micro-nano circuits, and intelligent terminals in China and internationally. The company offers semiconductor products comprising optical sensor package substrates and carrier glass substrates, as well as ceramic substrate precision machining services; biometric products consisting of optical connectors for 3D structured light modules, biometric infrared bandpass optical filters, semiconductor wafer optical solutions, and optical filters for fingerprint recognition modules; and image products, including smartphone camera filter assemblies, infrared cutoff filters, security camera filter assemblies, ultra-low reflection optical lenses, optical low pass filters, optical wavelength plates, and sapphire products. It also provides vehicle-mounted parts, such as pattern coating on glass wafers and absorption-coated filters; machine vision products, including colored glass optical coating films; and high-refractive index glass wafer precision engineering services for AR/MR parts. The company serves the smartphone, security monitoring, machine vision, digital camera, projector, smart car, big health, metaverse, and other industries. Hangzhou Mdk Opto Electronics Co.,Ltd. was founded in 2010 and is headquartered in Hangzhou, China.