Since its inception in 1992, LIMO GmbH has been one of the world’s leading manufacturers of optics and beam shaping solutions, as well as a pioneer of groundbreaking new photonics production technologies. The company develops and produces high-precision micro-optics for diode lasers, industrial laser systems for innovative materials processing, and complete optical systems for efficient production processes that use linear laser beam profiles. In the field of optical components, LIMO is currently one of the world’s major suppliers of glass cylindrical lenses thanks to its highly productive wafer-based manufacturing technology. With its technically sophisticated optics and laser system solutions, the company serves customers from all over the world in a wide range of different industries, including the laser, display production, semiconductor manufacturing and automotive industries, and the fields of measurement engineering, plastics processing and medical technology. LIMO is headquartered in Dortmund, Germany, and currently employs 230 people. The company has been part of the Focuslight Group since March 2017.
In the field of optical components, LIMO is currently one of the world’s major suppliers of glass cylindrical lenses thanks to its highly productive wafer-based manufacturing technology. LIMO specializes in precision optics for all diode laser types (single emitters, bars, and stacks) and all power classes. LIMO’s portfolio of optical components includes Fast Axis and Slow Axis collimation lenses, beam transformation systems, collimation modules, fiber couplers, homogenizers, compact beam shapers, and microlens arrays.
The cost-efficient wafer-based production technology with wafer sizes of up to 300 x 300 mm² makes it possible to produce tens of thousands of lenses from high-grade glass and crystal in a single process step, with a consistently high level of quality. LIMO is the world’s only manufacturer to offer large-batch production of glass FAC lenses on wafer sizes greater than 100 x 100 mm². Combined with a significantly expanded production capacity, LIMO’s highly productive and cost-efficient operations mean that the company can continue to meet the growing global demand for optics in innovative photonics- and laser-based applications and technologies well into the future.
LIMOs beam transformation system Activation Line UV has been successfully used for years in the lift-off field of OLEDs in the production of flexible mobile phone displays. The development team at LIMO has now enhanced the optical design far enough that the Gaussian profiles can be turned into a line with a length of up to 1,000 mm and a width of 30 µm. The new features include significantly steeper edges and a wider intensity maximum. This allows an increased productivity by more than 30%. In addition, the sensitive OLEDs are subjected to lower thermal loads (lower ash value), yields are higher, and the OLED displays produced have a longer lifespan.
LIMO’s industrial laser system Activation Line IR unlocks new dimensions in materials and surface processing, and can both improve materials and surfaces while also making them compatible with new applications.
The technology uses long, narrow laser lines to process large areas uniformly and with high precision. Because processing takes place simultaneously, it also delivers a major productivity boost. Thanks to its scalability, the Activation Line IR is suitable for use in industrial production operations that process over 1 million m2 in area per year. With its ultra-compact design, the system is easily integrated into existing production lines (e.g., in in-line and roll-to-roll processes).