Description
General Introduction: Raytek plane concave lens is a negative lens with a negative focal length, and the parallel beam will diverge after incident into the plane concave lens. Instead of converging into a single point, the incoming rays appear to spread out from a virtual point located in object space. At absolute conjugate ratios greater than or less than 5:1, a plano-concave lens is the best shape of a negative lens for reducing spherical aberration, coma, and aberration.
Products Name: N-BK7 Plano-Concave Lenses
Alias: Optical Concave lens, N-BK7 Planoconcave Lenses, N-BK7 optical concave lens, Visible N-BK7 Plano-Concave Lens, Visible Plano-concave lens, IR Plano-concave lens, NIR Plano-concave lens, 1064nm Plano-concave lens, Uncoated Plano-concave lens,etc
Tech Specification:
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.
Products Name: N-BK7 Plano-Concave Lenses
Alias: Optical Concave lens, N-BK7 Planoconcave Lenses, N-BK7 optical concave lens, Visible N-BK7 Plano-Concave Lens, Visible Plano-concave lens, IR Plano-concave lens, NIR Plano-concave lens, 1064nm Plano-concave lens, Uncoated Plano-concave lens,etc
Tech Specification:
| Item | Description |
| Material | Optical glass K9, Quartz, Fused quartz, BK7, sapphire |
| Surface Quality | 10/5~80/5 |
| size | 6mm-300mm |
| Surface Accuracy, Irregularity | λ/4 |
| Centration | ≤3 arc min |
| Chamfers | 0-0.8 mm face width |
| Chamfers Angle Tolerance | 45° ±15°, typical |
| Focal Length | ±5mm-1000mm±1% |
| Clear Aperture | ≥central 90% of diameter |
| Effective Focal Length(EFL) | From -25mm to -200mm |
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.
