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A microlens is a tiny lens that frequently has a diameter of only 10 micrometres (m), or less than a millimetre (mm). Because of the small diameters of the lenses, a straightforward design can produce high optical quality, but optical diffraction at the microscopic features can occasionally produce undesirable effects.
A typical microlens may consist of a single element with a spherical convex surface and a plane surface for light refraction. The substrate that supports micro-lenses is typically thicker than the lens because of how small they are, so this must be considered in the design.
To attain their design performance, more complex lenses may include aspherical surfaces, while others may employ many layers of optical material. Another type of microlens, also referred to as micro-Fresnel lenses, focus light through the refraction of incident light on a collection of concentric curved surfaces.
Such lenses are lightweight and can be manufactured very thin. By diffraction, binary-optic microlenses concentrate light. They have grooves with multi levels or stepped edges that resemble the ideal shape.
They can be replicated and manufactured more easily by employing common semiconductor techniques like photolithography and reactive-ion etching (RIE).
The Global industrial micro lens market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
A new ultra-thin variety of SELFOC MicroLens with a diameter , which is as fine as optical fibres, has been successfully created by the NSG Group.
The SELFOC MicroLens, which has the same diameter as optical fibres, will be able to reduce the size, complexity, and cost of numerous devices that link optical fibres to different terminals.
The Group also aspires to contribute to the reduction of climate change impacts by assisting in the construction of an all-optical network, which might drastically cut power consumption as optical signal is utilised in place of electrical one.
The Group created the distinctive cylindrical and flat-end-shaped glass lens with a gradient index, known as SELFOC Micro Lens, and it has been used in a variety of applications, including coupling and collimating lenses for telecommunication devices and imaging lenses for various endoscopes and microscopes used in the medical, life science, and industrial fields. These lenses are used because of their lightweight design and low transmission loss.
