Machine-vision lenses are used in various inspection and alignment applications in semiconductor manufacturing. Semiconductor systems that use these lenses include wire bonding, wafer dicing, probe, laser scribe, precision inspection, and surface mounting systems. Often, companies that develop such lenses also offer standard magnification, zoom, and telecentric lenses. This month, we look at Web sites of some leading lens developers and their latest products.
TARGETING MACHINE VISION
Kyocera (San Diego, CA) specializes in the design and manufacture of machine-vision lens and illumination systems. Lens designs available as standard products, including magnification, zoom, and telecentric lenses, are featured on the Web.
LENSES FROM GERMANY
Jenoptik (Jena, Germany) sells optical components and laser sensors for materials measurement and analysis. On the company's Web site you can review a range of machine-vision devices, telecentric lenses, and spherical, aspherical, and plano-optical components developed for infrared applications.
Computer Optics (Hudson, NH) designs and builds wide-angle, narrow-field, telecentric, zoom, varifocal, fixed-focal-length, dual-field, and aspherical lens systems. On this Web site, you can access data on wide-angle, telecentric, and zoom lenses and the company's design and consulting, manufacturing and coating, and assembly and testing services.
TELECENTRIC LENS, TOO
Adjustable field splitters and telecentric lenses are featured on the site of Light Works (Toledo, OH). One of the company's latest products—the super-eye telecentric lens line—features stand-off distances available from 200 mm to beyond 500 mm. Other products include the TLC-403 lens with a 66-mm field of view for use with a 2048 TDI linear-array camera that features a magnification of 0.403X and a 10-mm depth of field.
INFINITY STARTS HERE
Infinity Photo-Optical (Boulder, CO) manufactures long-distance microscopes, continuously focusable microscopes, macrosystems, and internal-focusing devices and lenses for industrial inspection and machine-vision applications. This site features the company's range of products including the InfiniVar CFM, which is capable of focusing continuously from infinity to 9 mm.
FIND IT FAST
Fiberoptic illumination and lens systems for machine-vision and inspection applications are highlighted on the site of Moritex (San Jose, CA). In addition to featuring the company's fixed-magnification, zoom, macro, telecentric, and CCTV lenses, there is a helpful lens-finder feature that lets you rapidly locate lenses by field of view, magnification range, and working distance.
On the Web site of Melles Griot (Rochester, NY) there is a host of information that can help you design a machine-vision system. Downloadable PDFs include tutorials on lens and lighting fundamentals, machine-vision fundamentals and applications, and how to choose a custom lens.
Other interesting lens Web sites