Locate India
Wednesday, 24 February 2016
   

welcome to Shree Coal Enterprises (I)Pvt.Ltd.



CONTACT US

Contact Person: Mr. Brijesh Joshi

Address: 196, Kamdhenu Complex, Zone -I, M.P.Nagar

Bhopal , Madhya Pradesh , India - 462 011

Phone:2578951

Mobile:

Email: shreecoalm@rediffmail.com



OUR PRODUCTS

Coal & Carbon Related Products

Wholesale suppliers of imported coal and Indian coal.


Metalized sapphire window

Metalized sapphire windows are created by applying thin layers of chrome, nickel and gold around the edge of a sapphire window. This metalized edge creates a surface that can be soldered or bonded directly into your opto-mechanical assembly allowing you to create a hermetic seal. Hermetically sealed optics is used in a variety of applications ranging from infrared imaging systems to medical devices. Technical capability Material: optical sapphire (Al2O3) Diameter tolerance: +0, -0.1mm Thickness tolerance: +/-0.05mm Clear aperture: 90% Surface quality: 80-50 scratches and digs Surface accuracy: 2 lambdas per 25.4mm @ 632.8nm Parallelism: < 3 minutes Coating: AR coating, T > 98% @ 1260-1600nm Metalizing: Chrome, Nickel, and Gold; sputtering method or screen printing method




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