BK7 spherical lenses are useful for a wide range of applications. BK7 plano-concave, biconcave, meniscus, plano-convex and biconvex lenses are manufactured to exacting Shanghai Optics laser-quality surface figure and surface quality specifications. This high standard of quality ensures exceptional performance in demanding applications, including high-energy laser applications.
These spherical singlet lenses are made from BK7 and can be supplied with AR coatings or left uncoated.
Lens Configurations and Designs
BK7 lenses are designed with a spherical surface and are available in multiple configurations, including plano-concave, biconcave, meniscus, plano-convex, and biconvex lenses. Convex lenses, for instance, are typically used in applications requiring a positive focal length, allowing them to focus light effectively in imaging and laser systems.
Focusing and Infinite Conjugates
Lenses with a positive focal length, such as plano-convex and biconvex lenses, are ideally suited for focusing applications involving infinite conjugates. These lenses can image objects from long distances, making them essential in precision imaging and laser-based systems.
Minimizing Spherical Aberration
BK7 lenses are designed to minimize spherical aberration, ensuring optimal image clarity and focus across the entire field. This makes them particularly suitable for high-energy laser applications and other demanding optical systems, where precise focus and minimal distortion are critical.
High-Quality Optical Material
The optical material used in BK7 lenses is known for its low inclusions and excellent uniformity, offering high transparency and durability. These lenses are ideally suited for applications requiring precise control of light and can be supplied with or without anti-reflective (AR) coatings to further enhance performance.
Applications of BK7 Lenses
BK7 spherical lenses, made from high-quality optical material, are widely used in various optical applications, particularly for focusing tasks. These lenses are commonly found in imaging systems, laser systems, and other precision instruments due to their exceptional optical properties and versatility.
Factory Standard
- Substrate Material: Bk7 glass
- Shape: Spherical P-Concave, P-Convex, Bi-concave, Bi-convex, Concave-Convex or Aspheric
- Surface Figure: l/10 at 633nm before coating
- Surface Quality: 10-5 Shanghai Optics Laser Quality
- Dimensional Tolerance: + 0.00mm, – 0.1mm
- Thickness Tolerance: +/- 0.1mm
- Chamfer: 0.15mm at 45° typical
- Concentricity: 0.05mm
- Focal Length Tolerance: +/- 0.5% typical
- Clear Aperture: Exceeds central 85% of dimension
BK7 Spherical Lenses by Shanghai Optics
BK7 spherical lenses, renowned for their outstanding optical properties and versatility, are essential components in a wide range of applications. Shanghai Optics’ precision manufacturing makes BK7 lenses ideal for demanding tasks such as high-energy laser applications and precision imaging. The availability of various configurations—including plano-concave, biconcave, meniscus, plano-convex, and biconvex—further enhances their adaptability to diverse optical systems. Whether used in imaging, laser technology, or other precision instruments, BK7 lenses consistently deliver reliable performance and contribute to advancements in various fields.
Contact us for manufacturing limit or custom specifications.
| Bk7 BICC LENS | All measurements in mm | ||||||||
| Part Number | Nominal | Diameter | 532nm | 633nm | 1064nm | 1319nm | Radius | ||
| F | D | F | F | F | F | R | TE | TC | |
| BICC-6.0-8.6-C | -8 | 6 | -8 | -8 | -8.2 | -8.2 | 8.6 | 2 | 3.1 |
| BICC-12.0-12.7-C | -12 | 12 | -11.9 | -12 | -12.2 | -12.3 | -12.7 | 2 | 5 |
| BICC-8.0-26.1-C | -25 | 8 | -24.8 | -25 | -25.4 | -25.6 | 26.1 | 2 | 2.6 |
| BICC-15.0-26.1-C | -25 | 15 | -24.8 | -25 | -25.4 | -25.6 | 26.1 | 2 | 4.2 |
| BICC-25.0-26.1-C | -25 | 25 | -24.8 | -25 | -25.4 | -25.6 | 26.1 | 2 | 8.4 |
| BICC-25.0-26.4-C | -25 | 25 | -25.1 | -25.3 | -25.7 | -25.9 | 26.4 | 2.1 | 8.4 |
| BICC-42.0-51.8-C | -50 | 42 | -49.5 | -50 | -50.8 | -51.1 | 51.8 | 2 | 10.9 |
| BICC-25.4-77.6-C | -75 | 25.4 | -74.4 | -75 | -76.3 | -76.7 | 77.6 | 2 | 4.1 |
| BICC-15.0-103.4-C | -100 | 15 | -99.2 | -100 | -101.7 | -102.4 | 103.4 | 2 | 2.5 |
| BICC-25.4-103.4-C | -100 | 25.4 | -99.1 | -100 | -101.6 | -102.3 | 103.4 | 2.6 | 4.2 |
| BICC-25.4-129.1-C | -125 | 25.4 | -123.9 | -125 | -127.1 | -127.9 | 129.1 | 2.9 | 4.2 |
| BICC-25.4-154.9-C | -150 | 25.4 | -148.6 | -149.8 | -152.3 | -153.3 | 154.9 | 3.2 | 4.2 |
| BICC-25.4-206.4-C | -200 | 25.4 | -198.3 | -200 | -203.6 | -204.6 | 206.4 | 3.4 | 4.2 |
| BICC-50.0-206.4-C | -200 | 50 | -198.3 | -200 | -203.6 | -204.6 | 206.4 | 5.3 | 8.3 |
| BICC-50.8-206.4-C | -200 | 50.8 | -198.3 | -200 | -203.6 | -204.6 | 206.4 | 5.4 | 8.5 |
| BICC-25.4-309.4-C | -300 | 25.4 | -297.8 | -300.3 | -305.3 | -306.9 | 309.4 | 2 | 2.5 |
| BICC-38.1-309.4-C | -300 | 38.1 | -297.5 | -300 | -305 | -306.9 | 309.4 | 2 | 3.2 |
| BICC-50.8-309.4-C | -300 | 50.8 | -297.8 | -300.3 | -305.3 | -306.9 | 309.4 | 6.3 | 8.3 |
| BICC-25.4-412.4-C | -400 | 25.4 | -396.9 | -400.3 | -407 | -409.2 | 412.4 | 2 | 2.4 |
| BICC-38.1-412.4-C | -400 | 38.1 | -396.6 | -400 | -406.7 | -409.2 | 412.4 | 6 | 6.9 |
| BICC-50.8-412.4-C | -400 | 50.8 | -396.9 | -400.3 | -407 | -409.2 | 412.4 | 6 | 7.5 |
| BICC-25.4-515.8-C | -500 | 25.4 | -496.5 | -500.7 | -509 | -511.9 | 515.8 | 2 | 2.3 |
| BICC-50.8-515.8-C | -500 | 50.8 | -496.1 | -500.4 | -508.7 | -511.9 | 515.8 | 2.3 | 3.6 |
| BICC-25.4-618.4-C | -600 | 25.4 | -595.2 | -600.3 | -610.3 | -613.8 | 618.4 | 2 | 2.3 |
| BICC-38.1-618.4-C | -600 | 38.1 | -594.9 | -600 | -610 | -613.8 | 618.4 | 6 | 6.6 |
| BICC-50.8-618.4-C | -600 | 50.8 | -595.2 | -600.3 | -610.3 | -613.8 | 618.4 | 6.3 | 7 |
Need help?
We offer FREE consultations and initial feasibility studies. If you have questions about limitations or lens capabilities we’re more than happy to work through your proposed custom components. As an unmatched custom optical provider, we’ll do everything that we can bring your vision to life.
