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Infrared UV protection glasses
Advantageous features. 1. New patented style - frame eyebrow protection at the edge and has a tiny, vertical dust holes, both to allow the eyes Eye ventilation, but also to prevent light exposure. 2. The same com...
Beijing, ChinaAperture diaphragm
- Manufacturer: BEIJING PERFECTLIGHT TECHNOLOGY
An aperture stop refers to a physical entity that restricts the passage of light beams within an optical system. It can be the edge of a lens, a frame, or a specially designed aperture screen. Aperture stops serv...
Beijing, ChinaLaser Diameter Measurement Equipment
- Manufacturer: Opmac
Opmac 140AL, single axis: 1-45mm edge measurement: 45-145mm laser diameter measuring instrument Opmac 140AL, single axis: 1-45mm edge measurement: 45-145mm XZ:Standard diameter of the measured objective Stable ·A...
Shanghai, China