Factory supply glass bi concave lens,double concave lens - Exportimes.com

Supplier Details

Changchun Realpoo Photoelectric Co., Ltd.  

Year Established:2012

Business Type:Trading Company

Management Certifiation:

Operational Address:
Door 1, No. 4, Puqing Road, Chaoyang District, Changchun, Jilin, China (Mainland)

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Factory supply glass bi concave lens,double concave lens

Factory supply glass bi concave lens,double concave lens
  • Factory supply glass bi concave lens,double concave lens
  • Factory supply glass bi concave lens,double concave lens
  • Factory supply glass bi concave lens,double concave lens
  • Factory supply glass bi concave lens,double concave lens
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Min.Order Quantity: 5 Piece/Pieces Supply Ability: 5000 Piece/Pieces per Month Port: FOB Changchun Payment Terms: L/C,T/T,Western Union

Product Details


Shape : concave
Structure : Double Concave
Usage : Optical
Material : glass,BK-7,B270,Pyrex,quartz,fused silica,borofloat
Model Number : RP-plca2500
Brand Name : REALPOO
Place of Origin : Jilin, China (Mainland)
coating : AR,HR,optional coating


Packaging & Delivery

Packaging Details: customized boxes and protective packing
Delivery Detail: 10 days


bi concave double concave lens
Size:2mm to 500mm
S/Q:40/20 or better
Flatness:1/2 Lambda
customized lens and stock lens

                                            bi concave lens or double concave lens 


The bi concave Lens or double concave lens is primarily used for diverging light and image reduction, as well as increasing system focal lengths and collimating converging light beams.


  • Have negative focal lengths
  • Diverge collimated incident light
  • Forms only virtual images which are seen through the lens
  • Reduce spherical aberration, coma and distortion at negative-infinite or near-infinite conjugate ratios
  • With the concave surface facing the longest conjugate distance



specifications requirement of concave lens:

  • Material:BK7 or other materials
  • Focal length:+/-1%
  • Center thickness tolerance:+/-0.01mm
  • Centration:1 arc minutes
  • Surface Figure:lambda/2 at 633nm on plano side
  • Surface quality:40/20 stratch/dig
  • Clear Apenture>95%
  • Chamfer Protective:0.25mm at 45 degree typical
  • Coating:optional






Whole Procedures of product processing                                                          



1.Cutting materials,


2.preparing toolings and models,


3.Coarse grinding,


4.Polishing surfaces,


5.Cleaning the lenses,






8.testing Finish.






Company Profile

Changchun Realpoo Photoelectric Co., ltd a professional leading manufacture of optics in the world. Realpoo possess Experienced engineer,Professional production line,exellent testing machine as well as advanced inspection instrusment. With the advanteges,we offer optical products in the fileds of University laboratory, Industry, Scientific research, Medical treatment, Mechanical equipments, lasers and Construction industry and so on.
We are confident because we have good team work, strict quality control system, best after-sales service. "Superior quality, Best service."Realpoo will insist on the goal to guarantee your satisfaction!

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