{"id":443,"date":"2017-08-28T19:55:39","date_gmt":"2017-08-28T19:55:39","guid":{"rendered":"https:\/\/www.1stvision.com\/machine-vision-solutions\/?p=443"},"modified":"2019-09-11T15:58:45","modified_gmt":"2019-09-11T19:58:45","slug":"optotune-lenses-keep-continuous-focus","status":"publish","type":"post","link":"https:\/\/www.1stvision.com\/machine-vision-solutions\/2017\/08\/optotune-lenses-keep-continuous-focus.html","title":{"rendered":"Learn how liquid lenses keep continuous focus on machine vision cameras when the working distance changes."},"content":{"rendered":"
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Optotune lenses<\/figcaption><\/figure>\n

Optotune lenses solve a machine vision industry problem!\u00a0<\/strong><\/p>\n

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IDS Imaging camera with Optotune lens<\/figcaption><\/figure>\n

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\nMachine Vision applications requiring the inspection of objects at various heights can become a challenge as normal lens have limited depth of field.\u00a0 Objects outside of the depth of field become out of focus, limiting the vision application.\u00a0 Historically, a lens with motorized focus adjustment would be implemented adding complexity, cost and long cycle times.\u00a0 In reality, this challenge is applicable to any imaging application requiring refocusing due to various lens working distances.<\/p>\n

Optotune Focus tuneable lenses solves this problem eliminating motorized zoom lenses or manual intervention.
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Click here NOW for full detail specifications on tunable lenses<\/strong><\/span><\/a><\/p>\n

Adding an Optotune tunable liquid lens to the optical system on a standard C-mount lens and camera, allows refocusing of the imaging system on the fly. \u00a0 When used in conjunction with distance sensors, its possible to\u00a0 inspect objects of various heights, refocusing within 15 milli-seconds.<\/p>\n

For example, vision systems using 8mm to 50mm focal length lenses <\/a>can be equipped with a tuneable lens in the front, typically mounted on the filter thread.\u00a0 In this configuration it is possible to focus from infinity down to about 100mm\u00a0 or less if spacers are added.<\/p>\n

This solution can be applied to industrial machine vision applications, ophthalmology, laser, microscopy, postal, packaging and laser applications to name a few.<\/p>\n

Contact 1stVision for a quote on Optotunes Tunable lenses<\/span><\/strong><\/a><\/p>\n

Technology 411<\/strong><\/div>\n
\u00a0Optotune\u2019s focus tunable lenses are shape-changing lenses based on a combination of optical fluids and a polymer membrane. The core element consists of a container, which is filled with an optical liquid and sealed off with a thin, elastic polymer membrane. A circular ring that pushes onto the center of the membrane shapes the tunable lens. The deflection of the membrane and with that the radius of the lens can be changed by pushing the ring towards the membrane or by exerting a pressure to the outer part of the membrane or by pumping liquid into or out of the container.<\/div>\n
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Watch this video to see the Optotune liquid lens in action<\/em><\/div>\n
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