德尔发光电

Delfa used laser interferometer to measure surface figure of lens or windows.

In May6,2021,Beijing Delfa got approval of ISO9001:2015 certification

In June 6, 2018, Beijing Delfa got approval of ISO9001:2015 certification

In September of 2017, Beijing Delfa purchased spectrophotometer UV1800 from SHIMADZU. It can measure from UV to NIR

In order to improve work efficiency and measurement accuracy, Delfa purchased the high resolution, high precision automatic image measuring instrument from the United States OGP in June of 2017

In 2016 September, Beijing Delfa new vacuum coating machine put into use. The WTX-1300/1500 vacuum coating machine adopts double

In December of 2015, Beijing Delfa got approval of ISO9001:2008 certification.

In 2013, Beijing Delfa purchased Infrared spectrometer Spectrum 2 from PerkinElmer, which can measure transmission

In 2012, Beijing Delfa purchased Profile Projector from Mitutoyo, greatly improve the measurement accuracy and precision of product dimensions.

In September of 2012, Beijing Delfa purchased spectrophotometer L950 from PerkinElmer. It can measure​ the transmission and large angle reflectivity of UV, NIR and visible light. Wavelength is from 175-3300nm.

In March of 2009, Beijing Delfa purchased a Centration measuring instrument of the Trioptics GmbH from Germany. This instrument has been already put into use.

Delfa used laser interferometer to measure surface figure of lens or windows, which instrument was imported from Fujinon of Japan. The center wavelength 635nm semiconductor laser is the light source of the interferometer, which can measure the surface accuracy below dia.30mm for plane surface or s

In 2008, Delfa purchased a measuring microscope. The instrument can be used to measure the concentricity of optical windows as well as various geometric quantities of the small spec products.

In 2007, Beijing Delfa purchased a digital wave front laser interferometer. This instrument uses Fizeau interference principle, which can be used to measure the surface figure of optical glass, metal (copper, aluminum, etc.) and optical crystal materials (germanium, silicon, ZnSe, etc.).