Quartz glass hyper hemispherical dome lens with flange

Item Number:20D5Y40


  • Outer Diameter: 80mm
  • Thickness: 7mm
  • Dimension Tolerance: +/-0.1mm or better
  • Surface Quality: 60-40 or better
  • Surface Accuracy: 1 lambda or as requested
  • Centration: 1 arc min or customized
  • Coating: Optional


    Dome is composed of two parallel optical surfaces. Among optics domes are unique because, unlike any other optical components, the key attribute of the dome is to have no optical effect. Generally a dome is often exposed to the environment. Accordingly, domes made from hard ceramic materials are preferred due to their ability to withstand wind and rain erosion. 


   ● Why use Dome ports for Underwater Photography? 
       Domes make it better - Dome lens help correct aberrations that occur when light travels thru water as opposed to air. Domes can deliver better results compared to flat ports, and also make it easier or possible some results that flat ports would not capture. 

   ●  Size matters 
       Bigger domes are better than smaller domes, for a number of reasons. The tradeoffs are; heavier, bulkier, pricier than smaller domes. 

   ●  Glass is optically superior
       Glass domes are optically superior to plastic or acrylic, and they do not scratch as easily. 

   VY produce optical glass dome or PMMA dome with different processing technology according to exact application, we manufacture dome lens from dia. 3mm to 300mm, the size range is super wide, and lots of our domes are in stock, price will be reasonable and a best solution can be suggested. So please contact us freely for professional suggestion for your application.

     

 

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