20241010 — The meaning of F-NUMBER is the ratio of the focal length to the aperture in an optical system.

Please note;Due to the size of some of these lenses, we may need charge an additional fee for shipping. If you would like further details, please send your request to [email protected]

Overall, with the use of liquid lenses, one achieves more freedom due to the variability of the working distance and the possibility of very fast and precise focus adjustment.

Another advantage of liquid lenses is that they can be particularly compact. This means that code readers and intelligent cameras can be made even smaller.

Most applications for liquid lenses are found where codes need to be read quickly, but the codes may be present at different working distances. This can be the case in logistics and especially in applications on conveyor belts.

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Conventional autofocus lenses are considerably slower and the wear on the mechanics is considerable. For this reason, they are reluctantly used in machine vision.

Liquid lensedmund optics

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Deep optics

2024229 — These flexible and robust 3D vision systems play a vital role in various industries, including manufacturing, shipping, and healthcare. Their ...

We stock fresnel lenses from 5mm to 650mm aperture, which contains both standard and precision ranges of fresnel lenses. The precision range has tighter tolerances with improved surface quality. These ranges are uncoated, however, antireflective coatings can be applied at short notice.

OPT's newly developed liquid lens features a precision design with no moving parts, is small and compact, and can be used in miniaturized or space-constrained automation equipment.

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Typically, this standard range of lenses are used to emit parallel light from the grooved side where the light source is placed at the focal length position from the plane surface.These lenses can also be used in reverse configuration to converge collimated light, incident from the plane surface, to the focal point from the grooved surface. However, this application may experience some inteference from the draft surface of each groove, so we would recommend our range of specially adapted Reverse Configuration Fresnel Lenses for this.

If the distance of the object to the liquid lens changes, the liquid lens technology allows the object to be tracked in space by permanent and instantaneous focusing. The object is thus in focus at any working distance.

Ich mache Pixelkunst, bei der jeder Pixel auf einer 160x160 Leinwand mit einem 2x2-Farbblock dargestellt wird. Ich kann 2px-Rasterlinien mit ...

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Please note that due to the small size of the fresnel lens on part LFG0505 each 15x15mm part is etched with three 5mm lenses by default.

There, the barcode reader is usually permanently installed and the objects to be measured move quickly under the reader. An example of this are packages, which can have different sizes. In order to be able to read the barcodes on the packages, it is essential that the images of the codes are focused very quickly. Only sharp images can be evaluated reliably during production.

To meet customers´ needs for improving quality and efficiency, OPT's self-developed liquid lens has been newly launched. Under combined applications with smart code readers and industrial cameras, it exhibits outstanding performance, achieving instantaneous focusing and offering more flexibility in working distance. They are thus ideally suited for the 3C industry (computers, communications and consumer electronics), logistics and many other industries.

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The most significant advantage of liquid lenses is the fast focusing without mechanical wear. Working distances or focal lengths can be reliably changed within a few milliseconds. The control is electrical.

Tunablelens

Optotune

Not only barcode readers and intelligent cameras can be equipped with liquid lenses, but also conventional industrial cameras.

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Liquidcrystallens

Home / Stock / Lenses / Fresnel Lenses / Standard Fresnel Lenses

Cutting down of stock lenses to custom sizes.Antireflective coatings.Other focal lengths and aperture sizes available at short notice.

It can be easily and flexibly installed and commissioned, thus best meeting the requirements of complex machine vision applications.

The model for liquid lenses are biological eyes, such as those of humans. In a fluid-filled chamber, an elastic lens is deformed by muscle force (ciliary muscle) to achieve focusing.

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The mirrors ring light is an easy-to-use multi-purpose lighting tool that allows users to obtain a uniform light source directly from the viewing angle of ...

Tubelens

In applications where several images are taken in quick succession as test shots with different settings, the use of liquid lenses can lead to faster results. In addition, the number of images captured can be significantly reduced.

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OPT's liquid lenses use the principle of two-phase liquid lens technology. Two immiscible liquids (an aqueous salt solution and a non-conductive oil) with different refractive indices are contained in a chamber. If an electrical voltage is now applied, the shape and curvature of a liquid is influenced and thus also the focal length of the entire liquid lens.

Fresnel lenses consist of a flat surface with interspaced, concentric steps whereby each step corresponds to the surface of a conventional lens. Each step thereby acts as a refractive surface, much like a prism. This gives the fresnel lens a common focal length equivalent to a traditional lens, but with a fraction of the thickness. Additionally, because the lens is so thin little light is lost by absorption. Fresnel lenses can be desirable for use in condenser and lighting systems to collimate and collect light in equipment such as sensors or communication systems. Fresnel lenses can be used as magnifiers, but this is not recommended unless the thin profile and light weight is absolutely necessary. Fresnel PMMA lenses are also ideal for simulators and projection systems.