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Surface inspection, widely employed in industrial quality control and product testing, leverages visual or sensing technologies to identify surface defects, textures, or topographies. This process heavily depends on the performance of micro-optical components. Achieving high-quality product images is crucial, with the uniformity of the light source system playing a decisive role in ensuring optimal CCD imaging quality.

Focuslight?micro-optic homogenizers and diffusers using glass refractive optical elements (ROE) technology can disperse laser light in one direction up to a full illumination angle ranging from a few?mrad?to over 160°. When combined with a second functional surface, the light field can also be shaped at any desired angle in the other direction, making it possible to obtain a homogeneous line or rectangular field with a steep edge slope and a user-defined size, for instance 125° x 25°. These different angles illuminate the target area precisely and uniformly (95%), while a surface structure defined for the customer’s application delivers a consistent intensity distribution for the specific application. This is beneficial for noise reduction and increases the signal-to-noise ratio, which provide high uniformity and high-resolution illumination system for CCD/CMOS imaging and surface inspection system. This enables faster and more precise recording of measured values, increasing throughput and efficiency.

Another example: With the development of rail transit, protecting the safe and stable operation of high-speed railway, highway and subway has become the key. In these scenes, it is an effective approach to capture the clear image of high-speed train and?detect the integrity and defects of the train?through image processing and intelligent algorithm.

Focuslight’s?Flux series line laser source lens adopts advanced micro-optical beam shaping solutions and manufacturing process and offers the advantages of zero maintenance need, high?reliability?and uniform beam energy distribution. As active lighting source in the high-speed detection machine vision system, they are widely used in the surface defect detection of rail transit, roads, bridges and more.