| Sign In | Join Free | My benadorassociates.com | 
 | 
| Categories | Double Convex Lens | 
|---|---|
| Brand Name: | Wuhan Siwer Optics | 
| Model Number: | Ball lens | 
| Place of Origin: | Wuhan,China | 
| MOQ: | 10 pieces | 
| Price: | 0.5-30USD/piece | 
| Payment Terms: | T/T, Western Union | 
| Supply Ability: | 5000 pieces/month | 
| Delivery Time: | 4-6 weeks | 
| Packaging Details: | 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler | 
| Material: | N-BK7 | 
| Size tolerance: | +/-0.1mm | 
| Surface quality: | 40/20 | 
| Standard coating: | Uncoated | 
| Diameter range: | 1-20mm | 
| Usage: | Optical system | 
| Company Info. | 
| Wuhan Siwer Optics Co.,Ltd | 
| View Contact Details | 
| Product List | 
Ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, Solar-photovoltaic and fiber-to-detector coupling.
We can provide spherical ball lenses and half ball lenses in a range of substrates for performance in the ultraviolet to the NIR. Such as including H-K9L(N-BK7), Sapphire, ZnSe or custom materials upon request.
Ball lenses feature short back focal lengths to minimize the distance needed from the ball Lens to the optical fiber. Ball lenses are commonly used to improve signal quality in fiber coupling applications, or for use in endoscopy or bar code scanning applications.
Half-Ball (hemispherical) lenses are ideal for applications such as fiber communication,endoscopy, microscopy, optical pick-up devices,and laser measurement systems.

Optical Specifications
| Item | Parameter (Optical glass ball lens; Half ball lens) | 
| Material | K9 (BK7), Optical sapphire(ruby) glass, fused silica, JGS1, | 
| ZnSe, Zns, Ge, Caf2, b270, LaF52, Schott glass | |
| Diameter | 1~150mm, 1mm, 2mm, 3mm… | 
| Dia. Tolerance | +/-0.002mm | 
| Roundness | 0.003-0.005 | 
| Surface Accuracy | <2λ | 
| Irregularity | λ/2 @632.8nm | 
| Surface Quality | <40/20 scratch/dig | 
| Clear Aperture | >92% | 
| Focal length tolerance | +/-1% (+/-5% for 400 series) | 
| Centration | 3 arc min or better | 
| Coating | Upon customer request | 
Material Characteristics
| Fused Silica Ball and Half-Ball Lenses: 1,Excellent UV Transmission From 200nm to 2200nm 2,Low Coefficient of Thermal Expansion | Sapphire and Ruby Ball Lens(Half ball lens): 1,Excellent for Severe Environments 2,High Strength and Hardness 3,High Chemical Stability 4,Ruby Balls are easier to see | 
| H-K9L (N-BK7) Ball Lenses: 1,Can be Used as Fiber Coupling Spheres or Collimating Lenses 2,Ideal Pre-Forms for Aspheric Lenses 3,Available in a Variety of Sizes | High Index Ball Lenses: 1,Index of Refraction of 1.8-2.0 2,High Tolerance 3,High Index for a Closer Focal Distance | 

What's the way of shipping?
We accept DHL, Fedex, TNT, UPS, SF, EMS etc. If you have your own
express account, it's great.
How to pay?
(1) T/T, PayPal, West Union,etc
(2) Bank Fee: West Union-USD30.00(≤USD3000.00),
T/T-USD20.00+, PayPal-5%. Please consult the local bank.
What's the deliver time?
For inventory: the delivery time is around 5 workdays.
Customized products: the delivery time is 10 to 30 workdays.
According to the quantity and precision.
Can I customize the products based on my need?
Yes, we can customize the material, specifications and optical
coating for your optical components based on your needs. OEM is
available.
|   | 
 AR Coating Optical Two Convex Lenses 400-700nm With N-BK7 / H-K9L Material
                                                                                    
                        
                        
                        
                                                            AR Coating Optical Two Convex Lenses 400-700nm With N-BK7 / H-K9L Material
                                                    
                        
                     Optical System Laser Collimator Lens M9x0.5 , 445nm 400-700nm AR Coating
                                                                                    
                        
                        
                        
                                                            Optical System Laser Collimator Lens M9x0.5 , 445nm 400-700nm AR Coating
                                                    
                        
                     Diameter 45mm biconvex optical instruments lens,25mm,20mm,38mm,31mm,34mm,37mm focal length
                                                                                    
                        
                        
                        
                                                            Diameter 45mm biconvex optical instruments lens,25mm,20mm,38mm,31mm,34mm,37mm focal length
                                                    
                        
                     AR Coated Aspheric Collimating Lens M9*0.5 With Fused Silica Or Acrylic Material
                                                                                    
                        
                        
                        
                                                            AR Coated Aspheric Collimating Lens M9*0.5 With Fused Silica Or Acrylic Material
                                                    
                        
                     High Performance Laser Collimator Lens M9x0.5 , Focal Length 4.02mm
                                                                                    
                        
                        
                        
                                                            High Performance Laser Collimator Lens M9x0.5 , Focal Length 4.02mm
                                                    
                        
                     VIS 0 Degree Coated DCX Double Convex Lens With 4-300mm Size Range
                                                                                    
                        
                        
                        
                                                            VIS 0 Degree Coated DCX Double Convex Lens With 4-300mm Size Range
                                                    
                        
                     N-BK7 Or H-K9L Material Optical Double Convex Lens 400-700nm AR Coating
                                                                                    
                        
                        
                        
                                                            N-BK7 Or H-K9L Material Optical Double Convex Lens 400-700nm AR Coating
                                                    
                        
                     Diameter 30mm Double Convex Lens Focal Length 50mm For Industrial
                                                                                    
                        
                        
                        
                                                            Diameter 30mm Double Convex Lens Focal Length 50mm For Industrial
                                                    
                        
                     Optical Glass Double Convex Lens For Microscopy To Laser Processing
                                                                                    
                        
                        
                        
                                                            Optical Glass Double Convex Lens For Microscopy To Laser Processing
                                                    
                        
                     H-K9L Glass Ball Lens
                                                                                        
                                                        
                        
                        
                        
                                                            H-K9L Glass Ball Lens