屋脊棱鏡
      
     
       
      
     
      
	
      
      Roof prism is combined with a right angle prism and a totally internally reflecting roof and they are attached by them largest square surfaces. It can invert and reverse an image, also, deflect the image 90o . Therefore, it is often used in terrestrial telescopes, viewing systems and rangefinders. 
       
      Specification for standard Roof prism:
      Material: BK7 Grade A optical glass
      Dimension Tolerance:+0,-0.2mm
      Flatness: λ/4 at 632.8 nm
      Surface Quality: 60-40 scratch and dig
      Clear Aperture: >80%
      Bevel: 0.2 mm to 0.5 mm x 45o
      Angle Tolerance: ± 3arcmin 
                  
                  
      Part No.
      		            
      A (mm)
      		            
      B (mm)
      		            
      h (mm)
      		        
              
                  
      RFP0101
      		            
      27.4
      		            
      20.0
      		            
      20.0
      		        
              
                  
      RFP0102
      		            
      41.1
      		            
      30.0
      		            
      30.0
      		        
          
       
       
      


    
    
    
    


      
    
      
    
    
      
     
      
      
       
      
      
      
       Note:Other sizes, material and coatings are available upon request.

      

     
      
     
      
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