Description
General Introduction: Raytek's 430-700 nm N-BK7 precision plano-convex lens is polished with the master test board to achieve strict tolerances, thus ensuring minimum wavefront distortion to meet the harsh laser electro-optic focusing application scenarios. They are suitable for AR antireflective coatings with a wide bandwidth of AR.14 Coating with 430nm to 700nm.
N-BK7 is an excellent lens material for most visible and near infrared applications. It is the most common borosilicate optical crown glass, which can provide excellent performance and moderate price. Because of its high uniformity, low content of bubbles and inclusions, and easy manufacture, it has become an excellent choice for transmission optical elements. N-BK7 is also relatively hard and has good scratch resistance. The transmission range of BK 7 is 380 to 2100 nm. It is not recommended for temperature sensitive applications such as precision mirrors
Products Name: Visible N-BK7 Plano-Convex Lenses
Alias: Visible N-BK7 Plano-Convex Lenses, N-BK7 Plano-convex Lens, Visible Plano-convex Lenses, N-BK7 Visible Plano-convex Lenses, VIS Plano-convex Lenses, N-Bk7 Plano-convex Lenses
Main Applying: Laser electro-optic focusing application scenarios.
Products Highlights:
Our precision planoconvex lenses are polished to a strict tolerance to minimize pre wavelet distortion. Strict surface quality tolerance minimizes scattering and unnecessary diffraction effects. These lenses have a surface quality of 40-20 scratch pitting and a surface power with an accuracy of 1.5λ.
1).430-700 nm antireflective coatings
2).High performance n-bk7 substrate with 40-20 dot
3). Flat convex shape suitable for focusing
4). Standard focal length suitable for various lens sizes
5).Aspheric lens surface can reduce spherical aberration
6).High precision & high surface roughness;
7).Sizes can be customized as per the customers’ request
8).Quick lead time and delivery time.
9).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.
10).Excellent post-sale quality warranty, with “3R”-return, replace & refund policy
Main Tech Specification:
|
Universal Optical Character Tech Data |
|
|
|
Optical Lens Type: |
Plano-Convex Lenses |
|
|
Lens Substrate: |
N-BK7 or custom as per the demand of customers |
|
|
Surface Quality: |
40-20 scratch-dig 20-10 scratch-dig 60-40 scratch-dig 15-5 scratch-dig 10-5 scratch-dig 80-50 scratch-dig Or custom manufacturing as per demand |
|
|
Surface Flatness: |
λ/4 |
|
|
Surface Accuracy/Irregularity: |
λ/4 |
|
|
Surface Accuracy,(Power) |
1.5λ |
|
|
Coating Type: |
Single-layer visible AR.14 Coating Or custom manufacturing as per demand |
|
|
Antireflection Coating Wavelength: |
430-700nm Or custom manufacturing as per demand |
|
|
|
||
|
Size/Specification Tech Data |
|
|
|
Dia. |
25.4 mm 50.8 mm 12.7 mm 6.35 mm 76.2 mm 38.1 mm |
8.0 mm 12.0 mm 15.0 mm 10.0 mm 20.0 mm Or custom manufacturing as per demand |
|
Effective Focal Length(EFL): |
6.4 mm 10.0 mm 12.7 mm 16.0 mm 19.0 mm 20.0 mm 21.0 mm 25.0 mm 25.4 mm 26.1 mm 33.0 mm 38.1 mm 38.6 mm 50.0 mm 50.2 mm 55.0 mm 62.9 mm 75.0 mm 75.6 mm 88.3 mm 100 mm |
113 mm 125 mm 138 mm 150 mm 175 mm 200 mm 225 mm 250 mm 300 mm 350 mm 400 mm 450 mm 500 mm 600 mm 750 mm 850 mm 1000 mm or custom manufacturing as per demand |
|
Other Available Coating Workcraft: |
Uncoated 10.6 µm 230-266 nm 245-440 nm 250-550 nm 355 nm 400-700 nm 430-700 nm 500-1100 nm 532 nm 650-1000 nm 660-1380 nm 1000-1550 nm 1064 nm 1064 & 532 nm Or custom manufacturing as per demand |
|
|
Other Available Lens Substrates: |
Molded glass Fused silicon glass N-BK7 B270 D-LaK D-ZK3 D-ZLaF52LA18 D-ZLaF52La9 ECO5508 L-BAL 35 (589/611)48 7980/7979/7972/7973/SQ0/1/8655/SK1300/1310 NIFS/BK7/N-SF6/N-SSK/SBL7/Zerodur/CaF2/SIC |
|
|
|
|
|
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.
