What Is a Plano Convex Cylindrical Lens?
A Plano Convex Cylindrical Lens is an optical component with one flat surface and one convex cylindrical surface. It is designed to focus or shape light primarily in one direction.
Unlike a conventional spherical lens, which has optical power in two perpendicular meridians, a cylindrical lens mainly affects light along one meridian. This makes it suitable for applications requiring directional focusing and optical line shaping.
VY Optics provides plano convex cylindrical lenses with different dimensions and optical specifications according to customer drawings and requirements.
Plano Convex Cylindrical Lens Specifications
| Material | UV Fused Silica |
| Flatness | λ/2 |
| Surface Quality | 60-40 |
| Length | 37mm |
Picture of Cylindrical Lens





Key Features of Plano Convex Cylindrical Lenses
Plano Convex Surface Design
The lens combines one flat optical surface with one convex cylindrical surface. This structure provides directional optical power while maintaining a flat surface on the opposite side.
One Directional Light Focusing
A plano convex cylinder lens focuses light primarily along one axis. It can convert a suitable collimated light beam into a line-shaped focus, depending on the optical configuration.
Flexible Optical Parameters
Lens length, width, thickness, cylindrical radius, focal length, and material can be specified according to the optical design.
Optional Optical Coatings
Anti-reflection coatings and other suitable coatings can be considered according to the wavelength range, substrate material, and application requirements.
How Does a Plano Convex Cylindrical Lens Work?
When light passes through a plano convex cylindrical lens, refraction occurs at the curved cylindrical surface. The lens changes the direction of light mainly in one meridian, while the perpendicular meridian has little or no focusing power.
When a collimated beam enters the lens in a suitable orientation, it can be focused into a line rather than a single point. The line direction and focal position depend on the lens orientation and optical design.
Applications of Plano Convex Cylindrical Lenses
Depending on the optical design, plano convex cylindrical lenses can be used in:
- Laser line generation systems
- Optical beam shaping assemblies
- Industrial imaging equipment
- Machine vision and optical inspection
- Optical measurement instruments
- Line illumination systems
- Laboratory optical setups
How to Choose a Plano Convex Cylindrical Lens
Before selecting a cylindrical optical lens, consider the following parameters:
- Material: Select optical glass according to the required refractive index and wavelength range.
- Dimensions: Confirm the lens length, width, thickness, and clear aperture.
- Focal Length: Specify the required focal length in the powered meridian.
- Cylindrical Radius: Confirm the curvature of the convex cylindrical surface.
- Orientation: Define the required lens orientation within the optical assembly.
- Surface Quality: Specify polishing quality and dimensional tolerances.
- Coating: Confirm whether an anti-reflection coating or another suitable coating is required.
Plano Convex Cylindrical Lens Manufacturing at VY Optics
VY Optics provides optical lens processing and manufacturing services based on customer drawings and technical requirements.
We can discuss optical glass selection, cylindrical surface processing, lens dimensions, focal length, surface quality, and coating options. Technical specifications are reviewed before production to ensure that the lens design matches the intended optical configuration.
Frequently Asked Questions
What Is Another Name for a Plano Convex Cylindrical Lens?
It is also commonly called a plano convex cylinder lens or plano convex cylindrical optical lens. These terms describe a lens with one flat surface and one convex cylindrical surface.
What Is the Difference Between a Cylindrical Lens and a Spherical Lens?
A spherical lens generally focuses light in two perpendicular directions. A cylindrical lens mainly focuses light in one direction, making it suitable for line focusing and directional beam shaping.
Can a Plano Convex Cylindrical Lens Generate a Laser Line?
Yes. When a suitable collimated beam passes through the lens in the correct orientation, the cylindrical surface can focus the beam into a line. The result depends on the lens focal length and optical setup.
Can the Focal Length Be Customized?
The focal length can be specified according to the optical design. It is determined by the lens material and cylindrical surface curvature.
Can Optical Coatings Be Applied?
Suitable optical coatings may be available depending on the substrate material, wavelength range, and coating specifications.
Request a Quote for Plano Convex Cylindrical Lenses
Looking for a plano convex cylindrical lens manufacturer? Contact VY Optics with your drawings or technical specifications. Please include the material, dimensions, focal length, cylindrical radius, surface quality, coating requirements, and order quantity.
Our team will review your requirements and provide manufacturing information for your optical lens project.












Key Features of Plano Convex Cylindrical Lenses



