Plano concave lenses are mainly used for infinite conjugate applications, laser applications, image systems. with the negative focal length, plano concave lenses have a flat face and an concave face. Sunday is manufacturing plano concave lenses with glass, fused silica, infrared crystal, sapphire materials. with the advance testing machines Sunday can make high precision lenses for customers.
Our plano concave lenses are engineered to diverge parallel light beams and optimize optical performance in advanced systems. With a negative focal length design, these lenses are widely used in laser beam expansion, optical instruments, and imaging systems.
As a professional Spherical Lenses manufacturer and supplier, we provide high-precision optical components with customizable specifications, ensuring stable performance, low aberration, and high transmission efficiency across various industrial and scientific applications.
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What is a Plano Concave Lens
A plano concave lens is an optical lens featuring one flat surface and one inward-curved surface. It causes parallel light rays to diverge, making it ideal for applications requiring beam expansion or image correction.
These lenses are commonly used in laser optics, telescopes, and precision optical systems where controlled light divergence is essential.
Request a quote or contact our engineering team today to get customized plano concave lens solutions.
Parameter:
| Structure | Plano concave lens |
| Material | Optical glass, UVFS, Germanium, Silicon, CaF2, MgF2, ZnSe ZnS, Sapphire |
| Diameters Available | 0.5mm to 600mm |
| Diameter Tolerance | +0.00/-0.01mm or customer design |
| Surface Quality | 10 |
| Surface Irregularity | λ/10 PV @632.8nm or customer design |
| Thickness tolerance | +0/-0.01mm |
| Clear Aperture | >90% of Diameter |
| Chamfer | 0.05-0.5mmx45degree, according to customer's needs. |
| Centeration | <10 arcsec |
| Coating | Single Mag2, Multiple Layers AR Coating A:350-650nm B:650-1050nm C:1050-1585nm D: Customer Design |
BK7 Standard Plano Concave Lens
| No. | EFL(mm) | Dia.(mm) | Radius(mm) | Material | Tc(mm) | Te(mm) |
| SD3A61 | -10 | 6.00 | -5.18 | BK7 | 2.00 | 2.95 |
| SD3A62 | -20 | 6.00 | -10.37 | Bk7 | 2.00 | 2.44 |
| SD3A63 | -30 | 6.00 | -15.56 | BK7 | 2.00 | 2.29 |
| SD3A22 | -20 | 12.70 | -10.37 | BK7 | 2.00 | 4.17 |
| SD3A23 | -30 | 12.70 | -15.56 | BK7 | 2.00 | 3.40 |
| SD3A24 | -40 | 12.70 | -20.75 | BK7 | 2.00 | 3.00 |
| SD3A25 | -50 | 12.70 | -25.94 | BK7 | 2.00 | 2.79 |
| SD3A27 | -75 | 12.70 | -38.90 | BK7 | 2.00 | 2.52 |
| SD3A20 | -100 | 12.70 | -51.88 | BK7 | 2.00 | 2.39 |
| SD3A45 | -50 | 25.40 | -25.94 | Bk7 | 2.00 | 5.32 |
| SD3A47 | -75 | 25.40 | -38.90 | Bk7 | 2.00 | 4.13 |
| SD3A41 | -100 | 25.40 | -51.88 | BK7 | 2.00 | 3.58 |
| SD3A415 | -150 | 25.40 | -77.80 | BK7 | 2.00 | 3.04 |
| SD3A420 | -200 | 25.40 | -103.75 | BK7 | 2.00 | 2.78 |
| SD3A425 | -250 | 25.40 | -129.72 | BK7 | 2.00 | 2.62 |
| SD3A510 | -100 | 50.80 | -51.88 | BK7 | 2.00 | 8.64 |
| SD3A520 | -200 | 50.80 | -103.75 | BK7 | 2.00 | 5.16 |
| SD3A530 | -300 | 50.80 | -155.60 | BK7 | 2.00 | 4.00 |
| SD3A550 | -500 | 50.80 | -259.40 | BK7 | 2.00 | 3.25 |
· Negative focal length for controlled light divergence
· Effective aberration correction in optical systems
· High surface precision for accurate beam control
· Excellent transmission with optional AR coatings
· Stable performance in high-power laser environments
· Compatible with UV, visible, and infrared wavelengths
Applications of Plano Concave Lens
Our plano concave lenses are widely used in:
Laser beam expanders
Beam shaping systems
Optical collimation systems
Microscopes and sensors
Measurement and inspection devices
Projection optics
Camera lens systems
Image correction modules
Laboratory optical setups
Medical imaging equipment
Custom Plano Concave Lens Solutions
We offer full OEM/ODM customization services to meet specific project requirements:
· Custom diameter and focal length
· Precision tolerance control
· Optical coating design (UV / VIS / IR)
· High-damage-threshold coatings for laser systems
· Prototype development and mass production
Our engineering team supports your project from design to final production.
Why Choose Us as Your Optical Lens Supplier
Advanced optical manufacturing technology
Strict quality inspection and testing procedures
Stable bulk production capacity
Competitive pricing for global markets
Fast response and technical support
Extensive export experience worldwide
Q1: What is the function of a plano concave lens?
A plano concave lens is used to diverge parallel light rays and expand laser beams in optical systems.
Q2: What materials are available?
We offer BK7, fused silica, CaF2, and other optical-grade materials depending on wavelength requirements.
Q3: Can you provide custom optical coatings?
Yes, we provide AR, BBAR, and wavelength-specific coatings for UV, visible, and IR applications.
Q4: What industries use plano concave lenses?
These lenses are widely used in laser systems, optical instruments, imaging devices, and scientific research.
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