Plano Convex Lens For Beam Focusing

A plano convex lens is simple, with one flat (plano) surface and one convex (outwardly curved) surface. The convex surface causes the lens to converge and focus light, allowing various applications where positive lens power and focusing ability are required. Their low aberrations, durability, and low cost make them useful for many optical purposed, especially at lower lens powers. They provide a simple, inexpensive solution wherever direct light focusing and magnification are needed.

 

We offer high-precision plano-convex lenses for many applications requiring controlled light focusing and magnification. Our lenses deliver unparalleled optical performance through idea design, premium materials, and world-class manufacturing techniques. Our finely polished convex surfaces provide the specified dioptric power, focusing light strictly for peak sharpness and clarity. Stringent standards minimize aberrations, even at high lens powers, ensuring accurately collimated or magnified images free of distortion. For any application requiring positive optical power and a well-corrected focusing lens, our plano-convex lenses offer optimal performance, customization, and value. Entrust your optical system to the quality and expertise of the industry leader. Please contact us today to discuss your requirements -- we make the lenses that make your designs work.

 

Features

- High optical quality

- Precise curvature

- Low surface irregularity

- Accurate center thickness

- Low wedge angle

- Robust mechanical design

- Anti-reflection coating

 

Parameters

Product name	Plano-convex Lens
Radius of curvature(convex surface)	50mm or custom +/- 1-5%
Center thickness	5mm or custom +/- 1-5%
Diameter	25.4mm or custom +/- 0.5mm
Wedge angle	<30 arc minutes
Surface irregularity(convex surface)	<λ/4 @ specific wavelength
Surface irregularity(plano surface)	<λ/10 @specific wavelength
Surface quality	80-20 scratch-dig or better
Material	Fused silica or custom
Clear aperture	>90% of lens diameter

 

Spectrum transmission curve

 

Applications

The significant applications of plano-convex lenses utilize their strong positive power and ability to rapidly converge light and create virtual images in front of the lens. Their high power but simple-surface design provides lightweight, low-cost optics useful for many applications.

- Vision correction

- Beam focusing

- Magnification

- Positive lens balancing

- Image projection

- Collimated light adjustment

 

What is the difference between convex and plano-convex?

The main differences between a convex lens and a plano convex lens are:

1. Curvature of surfaces:

- A convex lens has two convex, curved surfaces. Both surfaces are spherical and curve outwards.

- A plano-convex lens has one flat (plano) surface and one convex, curved surface. The curved surface is spherical and curves outwards, while the flat surface is plane and parallel.

 

2. Focusing power:

- A convex lens has higher focusing power since both surfaces contribute to refraction and focusing of light. It can achieve shorter focal lengths.

- A plano-convex lens has slightly lower focusing power since only the convex surface contributes to refraction. For the same focal length and lens material, a plano-convex lens must have a more strongly curved surface than a convex lens.

 

3. Aberrations:

- A convex lens typically has higher optical aberrations like spherical aberration due to the higher focusing power and two curved refracting surfaces.

- A plano-convex lens typically has lower aberrations since only the convex surface refracts light. The flat surface does not contribute additional aberrations.

 

4. Applications:

- A convex lens is typically used when high focusing power is needed in a tiny lens, such as in magnifying glasses, microscope objectives, telescopes, etc. Aberrations are corrected using lens design.

- A plano-convex lens is often used when a primary focusing lens is needed with moderate aberrations, such as in collimators, condensers, and basic imaging systems. The flat surface also allows easy attachment to other optical components.

 

The main differences are that a plano-convex lens has lower focusing power, fewer aberrations, and easier integration into optical systems than a standard convex lens. But a convex lens can achieve higher focusing energy in a smaller lens size which is necessary for some high magnification applications.

Hot Tags: plano convex lens for beam focusing, China, suppliers, manufacturers, factory, customized, wholesale, bulk, pricelist, in stock, for sale