1. Dust at least once a week, paying particular attention to removing dust from the fabric structure.
2. If the mat can be converted, it should be turned over once a week to make the wear evenly distributed.
3, if stains, can be wiped off with a clean rag and water, in order to avoid leaving a mark, it is best to smear from the periphery of the stain. Velvet furniture should not be wet, and dry cleaning agents should be used.
4. All cloth sleeves and bushings should be cleaned by dry cleaning, not washable, and bleaching is prohibited.
5, if you find that the thread is loose, do not tear it by hand, apply scissors neatly to cut flat.
High Precision Optical Glass Window
Windows are optical glass with ground and polished faces that are relatively parallel.They are used to isolate two physical environments while allowing light to pass.Windows made of BK7 material have high transmission in the visible spectral region, do not scratch easily, do not degrade under normal operating environment and hence do not need any special precaution or treatment. Anti-Reflective Coating will provide higher transmission.
China Star Optics offers all types of windows made from different materials. Such as N-BK7, Fused silica, sapphire,CaF2, Silicon, Borofloat, high borosilicate glass and other optical glass supplied by Schott and Chinese CDGM are available upon request.
Windows at shape of round,quadrate, triangular or other polygonal are also available upon request.In addition, we provide a variety of single layer or multiplayer anti-reflecting coating,HR,PR coatings on Optical Windows.
Specification of our optical windows as follow:
*Material:high borosilicate glass, BK7,UV-grade fused silica (JGS1) or other optical crystals materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%
High Precision Optical Glass Window,High Purity Silica Windows,Optical Round Window,Standard Optical Windows
China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com