8-phase-level diffractive lens with super long focal length

Wuxi OptonTech Ltd introduced 8-phase-level diffractive lens with super long focal length, i.e. focal length of 100 m and 150 m (100,000 mm and 150,000 mm). The aperture of the diffractive lens is 25 mm. The working wavelength is 1550 nm. We welcome any question, query or e-request for information.