Lenses for Precision Light Transport Applications

Frequently Asked Questions

What is an achromatic lens?

An achromatic lens is a lens that is designed to correct for chromatic aberration, which can cause images to appear blurry or distorted. Achromatic lenses are made by combining lenses with different refractive indices to minimize the effect of chromatic aberration. Achromatic lenses are commonly used in applications such as microscopy, photography, and telescope optics.

What is the difference between a plano-convex lens and a double convex lens?

A plano-convex lens has one flat surface and one convex surface, while a double convex lens has two convex surfaces. Plano-convex lenses are commonly used for collimation and focusing applications, while double convex lenses are often used in imaging systems, such as microscopes and cameras.

Can I use plastic lenses instead of glass lenses?

Yes, plastic lenses can be used in many applications instead of glass lenses. Plastic lenses are typically lighter and less expensive than glass lenses, and they can be easier to manufacture in complex shapes. However, plastic lenses may have lower optical quality than glass lenses and may be more prone to scratches and damage.

How do I choose the right lens for my application?

The choice of lens for your application will depend on a number of factors, including the wavelength of the light, the desired focal length, the size of the lens, and the required optical quality. You should also consider the materials and coatings used in the lens, as well as any environmental factors that may affect performance. If you are unsure which lens is right for your application, consult with a knowledgeable supplier or manufacturer for guidance.

What is an aspheric lens?

An aspheric lens is a lens with a non-spherical shape that allows for better correction of optical aberrations. Unlike spherical lenses, which can only focus light to a single point, aspheric lenses can focus light to multiple points, leading to sharper images. Aspheric lenses are commonly used in applications such as cameras, telescopes, and laser systems.

How are lenses manufactured?

Lenses are typically manufactured using a process called grinding and polishing. The lens material is shaped into a rough form using a grinding wheel, and then polished to achieve the desired shape and surface finish. More advanced manufacturing methods, such as diamond turning and injection molding, are also used to create lenses with complex shapes or high precision.

Can lenses be damaged by exposure to the environment?

Yes, lenses can be damaged by exposure to environmental factors such as moisture, dust, and temperature fluctuations. To ensure optimal performance and longevity, it's important to store lenses in a dry and clean environment and to handle them carefully to avoid scratches and damage.

What is a telecentric lens?

A telecentric lens is a lens that maintains a constant angle between the object and the lens, resulting in a constant magnification and image size regardless of the object's position. This makes them ideal for machine vision and measurement applications where precision is important.

What is lens coating and why is it important?

Lens coating is a process in which a thin layer of material is applied to the surface of a lens to improve its optical performance. Coatings can reduce glare, increase light transmission, and improve scratch resistance. They are important for optimizing the performance of lenses in specific applications and can improve overall image quality.

Engineering Lenses for Light Transport

Lenses in this category are designed for controlled light transport, beam shaping, and imaging in photonics and optical systems. On FindLight you can evaluate Lenses for laser delivery, machine vision, microscopy, and illumination without registration, and request quotes directly from multiple suppliers.

Main Types of Lenses Available

The catalog covers a wide range of Lenses and assemblies optimized for different beam profiles and form factors:

  • Spherical Lenses & Meniscus Lenses: Standard elements for focusing and collimation, with positive or negative power and minimized spherical aberration in meniscus form.
  • Achromats: Compound Lenses that correct chromatic aberration over specified wavelength bands, critical for broadband imaging and multi-line laser sources.
  • Aspherical & Acylindrical Lenses: Used to reduce spherical aberration and improve performance in compact systems; acylindrical types correct line-focus aberrations.
  • Cylindrical & Fresnel Cylindrical Lenses: Generate line foci or reshape beams in a single axis for diode bars, laser scanning, and light sheets.
  • Axicons: Conical Lenses for generating Bessel beams, ring patterns, or extended-depth line foci in materials processing and microscopy.
  • Fresnel & Lenticular Lenses: Lightweight options for large-area beam concentration, illumination shaping, and display optics.
  • Beam Expanders & Collimator Systems: Multi-element Lenses that expand or collimate laser beams for long-distance propagation or fine focusing.
  • Machine Vision Lenses: Imaging objectives designed for sensor formats, working distance, and resolution needed in inspection systems.
  • Microlens Array & Transmission Sphere: Arrays for homogenization and beam sampling, and reference Lenses for interferometric testing.
  • Microscope Objectives & Slow Axis Collimator Lenses: High-NA objectives for microscopy and dedicated collimators for diode laser slow axis control.

Buyer Guidance for Selecting Lenses

When sourcing Lenses on FindLight, compare focal length, clear aperture, numerical aperture, back focal distance, and working distance relative to your system geometry. Review substrate materials and coatings for transmission across your required wavelength range and power level. Assess wavefront error, surface quality, and centration tolerances for interferometric or high-resolution applications. For laser use, check damage thresholds and compatible beam diameters, especially in beam expanders and collimator systems.

Use the platform filters to narrow Lenses by type, spectral range, and mechanical interface. You can contact vendors and request quotes directly from each product page, without creating an account, to validate availability, custom options, and pricing for your specific optical design.