Optical Spherical Lens

Plano Convex Lens

Plano-convex lens consists of a flat surface and a convex surface, and is a type of positive focal length lens. It is the most basic and commonly used lens in optical systems; through its simple asymmetrical design, it can effectively reduce spherical aberration in optical systems under specific conditions.

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Specification of Plano Convex Lens

Items	Parameters
Material	Optical grade glass/ Fused Silica/ Sapphire
Diameter	2mm~300mm
Diameter Tolerance	±0.05mm~±1mm
Surface Quality	80/50, 60/40, 40/20, 20/10, 10/5
Surface Accuracy	λ~λ/20
Center Deviation	3 arc min~30 arc sec.
Coating	According to customer requirements.

Typical Application Areas

Lasers and Beam Control

Laser Collimation and Focusing Systems: Fundamental to applications such as laser processing, holographic projection, and interferometry. Galilean Beam Expander: Combined with plano-concave lenses.
Imaging and Optical Systems

Imaging, Beam Expanding, or Beam Shrinking: Used for relaying images and changing the cross-sectional size of the beam (magnification or reduction), widely used in various precision optical instruments. Projection and Illumination Systems Collecting light from a light source and focusing or uniformly projecting it onto a target area, improving light energy utilization efficiency and illumination uniformity.
Classic Historical Applications

Galilean Telescope: As an objective lens, it focuses light from distant objects to form an intermediate image. A core component of the first refracting telescope used for astronomical observation.
Specialty Materials Applications

Infrared Optics and Excimer Lasers: Utilizing the ultra-wide transmittance and high laser damage threshold of calcium fluoride (CaF₂) from ultraviolet to infrared (180-8000nm), it is used in high-power laser systems and infrared imaging. Suitable for cutting-edge applications with special requirements for wavelength and power.