{"id":19622,"date":"2021-09-20T22:15:38","date_gmt":"2021-09-20T22:15:38","guid":{"rendered":"https:\/\/www.accu-mold.com\/what-is-the-smallest-micro-lens-that-can-be-made\/"},"modified":"2023-06-01T10:31:13","modified_gmt":"2023-06-01T15:31:13","slug":"what-is-the-smallest-micro-lens-that-can-be-made","status":"publish","type":"post","link":"https:\/\/www.accu-mold.com\/fr\/what-is-the-smallest-micro-lens-that-can-be-made\/","title":{"rendered":"Injection-molded micro lenses: explained"},"content":{"rendered":"\n

Today\u2019s devices are reducing in size, and becoming more complex at the same time. For this reason, designers are rethinking older designs, removing the traditional copper wire for glass or plastic fiber. Micro lenses, lenslets, and lens arrays are making these new designs possible. Glass and plastic, or resin fiber is smaller, and at the same time has faster transmission times. In the constant fight to reduce size and weight, OEM engineers often ask, what is the smallest micro lens that can be made? The answer is 37\u00b5m, but more background is necessary to explain.<\/p>\n\n\n\n

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What are micro lenses used for?\u00a0<\/h2>\n\n\n\n

Precision micro lenses have numerous applications. Consider the enormous server farms being built today; they all use fiber and require optical connectors. Micro optics is a rapidly growing market with hundreds of millions of connectors being produced every year, and there\u2019s always a focus to shrink the size of tech while increasing its efficiency. Consider supercomputers: Some can have 250,000 connectors in one machine. <\/p>\n\n\n

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Extremely small stand-alone micro lens<\/figcaption><\/figure>\n<\/div>\n\n\n

Sensors are also a rapidly growing category, being used in more applications today than before. There are sensors being used in our lives at every turn: sensors monitor data in our cars, activate screens in our mobile phones, turn on and off appliances, and even monitor our vital signs inside our watches. Sensors monitor motion, environmental light changes, moisture and pressure and micro-lenses are a key component in their design.<\/p>\n\n\n\n

Many medical applications like blood glucose monitors, endoscopes, and surgical devices require micro-lenses, and like consumer technology, these devices are also getting smaller every year. The quest to find lighter packages and better efficiency requires smaller and more precise micro lenses. This is why one frequent question we get is this: what is the smallest micro lens that can be made?<\/p>\n\n\n\n

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What is the smallest micro lens that can be made?\u00a0<\/h2>\n\n\n\n

The smallest micro lens that can be made is 37\u00b5m, that is, it has a base radius of 37\u00b5m. Clarification is needed to understand the full scope of this part. This particular refractive lens was for a multi-core fiber application with a total of five lenslets within a 250\u00b5m circle. Each lenslet within this component had a base radius of 37\u00b5m. <\/p>\n\n\n\n

Stand-alone lenses are different. The smallest stand-alone micro mold lens that we\u2019ve produced to date, is 600\u00b5m. This was created for an augmented reality (AR) device.\u00a0We can’t disclose the nature of this project, but you can get a good example of a similar lens, albeit a bit larger, would look like in the photo to the right.<\/p>\n\n\n\n

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