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Optical-instrument is a kind fashion product from Hema brand factory. As the manufacturer and supplier in China, we provide customized service and make newest and fashion Optical-instrument in classy quality. Contact us for lastest selling Optical-instrument and advanced items. Welcome to to place bulk orders. Low price can be discussed.

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Handheld Stroboscope

Handheld Stroboscope is used in the experiment of scientific stroboscopic observation in primary and secondary schools to prove that vision has the characteristics of persistence. A supporting shaft and a 90 ° straight handle are installed in the center of the disc, and a nut is arranged at the end of the shaft, so that the disc does not come out. The disc can be rotated by hand around the central axis.

Demonstrator of Polarization Application

Demonstrator of Polarization Application can do experiments of polarization of light, tiny deformation of object and demonstration of color polarization. Light source: 12V20W apparatus bulb