N-Bk7 Bi-Convex Lens/Optical Bi Convex Lens/Biconvex Lenses/N-Bk7 Lens

• After-sales Service: 3r Policy-Return, Replace, Refund
• Warranty: 12months
• Usage: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc
• Type: Bi-Convex Lenses
• Transmittance: 90%-95%
• Shape: Single-lens
• Model NO.: RAY-XS042#
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Coating: Ar.14, Ar.16, Ar.18, Ar.33 Coated
• Substrate: N-Bk7 Optical Glass or Equivalent
• Surface Quality: 40-20 Scratch-Dig or Custom Manufacturing
• Surface Flatness: Lambda/4 or Custom Manufacturing
• Effective Focal Length(Efl): From +6.4mm to +1000mm
• Surface Accuracy, Irregularity: Lambda/4 or Custom Manufacturing
• Transport Package: Cartons or Wood Case
• Specification: 6.35mm-50.8mm or custom manufacturing
• Trademark: Raytek
• Origin: China
• HS Code: 9002909090
• Production Capacity: 100000PCS Per Year

Product Description

General Introduction:
The characteristic of the double convex lens is that the focal length of the middle part of the lens plane is long, and the focal length of the ends of each lens plane is short. Dual convex lenses are mainly used for converging light from point sources or transferring images to other optical systems

Lens Substrates:
N-BK7

Optional I:	N-BK7 from CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETC
Optional II:	Equivalent N-BK7 Made in China, C-laser own brands

Coating Type:

Coating Code:	Coating Type	Wavelength Range
AR.14	Visible Multilayer	430-700 nm
AR.16	NIR Multilayer	650-1000 nm
AR.18	IR Multilayer	1000-1550 nm
AR.33	Laser Line V-Coat Multilayer	1064 nm
-	Uncoated	-

Main Applying:
Relay imaging (physical and real)
Focused divergent beam
Converging beam
Beam expander lens
Imaging lens
Focusing lens and other optical lens
Laser beam expansion
Optical reader
Observer
Projection system
etc.

Products Highlights:
1).Different grades materials for option.
2).High precision & high surface roughness;
3).Sizes can be customized as per the customers' request
4).Quick lead time and delivery time.
5).Matching super optics custom and processing capacity, including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.
6).Excellent post-sale quality warranty, with "3R"-return, replace & refund policy

Main Optical Tech Specification:

Tech Data	Description
Lens Shape	Bi-Convex (Double Convex)
Material	N-BK7
Surface Quality	40-20 scratch-dig
Surface Flatness	λ/4
Surface Accuracy, Irregularity	λ/4
Surface Accuracy, Power	1.5 λ
Centration	≤3 arc min
Chamfers	0-0.8 mm face width
Chamfers Angle Tolerance	45° ±15°, typical
Focal Length Tolerance	±1 %
Clear Aperture	≥central 90% of diameter
Effective Focal Length(EFL)	From +6.4mm to +1000mm

Main Cooperation Materials Manufacturers:
CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC

Main Export Countries & Areas:
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.


Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;

Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.