OPTICS CRYSTALS LASERS
   
 
Spherical Plano-Convex Lenses

MATERIAL - Si (Silicon)


Crystaltechno LTD makes spherical plano-convex lenses from different types of optical crystals and glasses.

Spherical plano-convex lenses made from silicon are used as the focusing optics.

PARAMETER VALUE
 
  Surface form tolerances - Irregularity   Lambda/2 at 633 nm  
  Scratch-Dig   80 - 50  
  Diameter tolerance   +/- 0.1 mm  
  Paraxial Focal Length Tolerance   +/- 2%  
  Centration   less than 5 arc minutes  
  Clear aperture   >90 % (80 %, if detail size less 20 mm)  
  Bevels   (0.2-0.5) mm x 45 degrees  


For thin silicon Si plano-convex lenses
Surface form tolerance - without requirements, if ratio of central thickness (tc) to Diameter (D) less 1/10.

D, mm FLx, mm R, mm tc, mm te, mm Part Number
 
  12,7   12,7   30,86   2,7   2,0   PCX13-01  
  12,7   19,0   46,29   2,4   2,0   PCX13-02  
  12,7   25,0   60,75   2,3   2,0   PCX13-03  
  19,05   19,0   46,29   3,0   2,0   PCX13-04  
  19,05   25,0   60,75   2,8   2,0   PCX13-05  
  19,05   50,0   121,50   2,4   2,0   PCX13-06  
  19,05   75,0   182,25   2,2   2,0   PCX13-07  
  25,4   25,0   60,75   3,3   2,0   PCX13-08  
  25,4   50,0   121,50   2,7   2,0   PCX13-09  
  25,4   75,0   182,25   2,4   2,0   PCX13-10  
  25,4   100,0   243,00   2,3   2,0   PCX13-11  
  38,1   50,0   121,50   4,5   3,0   PCX13-12  
  38,1   75,0   182,25   4,0   3,0   PCX13-13  
  38,1   100,0   243,00   3,7   3,0   PCX13-14  
  38,1   150,0   364,50   3,5   3,0   PCX13-15  
  50,8   50,0   121,50   5,7   3,0   PCX13-16  
  50,8   100,0   243,00   4,3   3,0   PCX13-17  
  50,8   150,0   364,50   3,9   3,0   PCX13-18  
  50,8   200,0   486,00   3,7   3,0   PCX13-19  
  50,8   250,0   607,50   3,5   3,0   PCX13-20

* Numerical parameters correspond to wavelength 4.3 microns (n=3.43)

Perhaps you will find the required Si lenses and another silicon Si optics at our stock, please see item Optical Crystals.

 



 
 
 
CaF2
BaF2
MgF2
LiF
Al2O3
FS
BK7
Si
Ge
ZnSe
ZnS


Ordering Info
 
  (c) Crystaltechno Ltd. Vernadskogo 113-106, Moscow 119571, Russia
+7 (495) 234-5951, 234-5952, 956-7610
fax +7 (495) 433-1551
sales@crystaltechno.com
Site suggestions: webmaster@crystaltechno.com