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The competing systems for reliable object detection are LED and laser based solutions. Laser sensors have a clear advantage, however: compared to LED sensors they offer significantly longer sensing ranges, a higher precision, and a sharply defined diameter of the light cone. Consequently, the light spot always has a sharp contour and is easily recognizable within the visible spectrum range, and the light spot remains small relative to the working distance. This enables laser sensors to safely detect even the smallest objects, for example needles and threads. A further advantage in certain applications is that the laser sensors can detect objects through holes or narrow openings.

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Jan 8, 2021 — A light wave that is vibrating in more than one plane is known as unpolarized light. The light emitted by the sun, by a lamp or a tube light are ...

1. agire (compiere un'azione): agire. to act.

“Magnifying power.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnifying%20power. Accessed 23 Nov. 2024.

Otherwise the best I can think of is check if your focus breathing is at least consistent. Pick your first frame, set and mark the focus, then ...

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In the case of a time-of-flight photoelectric proximity sensor, on the other hand, the object color is almost irrelevant. This sensor does not measure optical angles, but rather the time-of-flight of laser light. The sensor emits laser pulses and measures the time until the reflected light arrives at its receiver element. This measurement principle is therefore almost independent of the optical reflectance behavior of an object. At the same time it is also extremely impervious to optical interference by reflections, ambient light or artificial light. ToF laser sensors also deliver stable detection results even at large detection angles. Furthermore, ToF laser photoelectric proximity sensors are so smart that they can deliver a continuous distance signal and also make it available via an analog output or IO-Link. Laser sensors are designed to be smart sensors. They can therefore be used to implement Industry 4.0 applications such as condition monitoring in order to make automation networks more efficient and future proof.

A sensor should not squint. That might sound strange, but we refer to a so-called squint angle when installing the optoelectronic module and while adjusting the laser diode. The diode is aligned by a fully automatic gripper and using an alignment target until the squint angle is almost eliminated, and is then glued to the module. This works consistently from sensor to sensor thanks to micrometer-precise monitoring by a camera system in this automatic manufacturing process. This ensures that all laser sensors of the same type leave the factory, in principle, identically adjusted – a repeatability that makes initial mounting and also supplementing or replacing the sensor significantly easier.

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A bundled light beam reveals the protagonists in the dark – or presents them in the best light figuratively speaking. What works on the stages of this world offers something of a blueprint for the many product families of laser sensors at SICK. With their bundled light, the many different laser sensors safely and reliably detect and record either objects or the surroundings, depending on the application – even independent of ambient light and other challenges.

The different measurement principles of laser sensors also suggest their possible applications. From laser scanners that detect ultra small nearby objects right through to photoelectric sensors with a detection range of up to 60 meters – a huge spectrum. And this applies, of course, to all industries, whether it be packaging machine construction, the automotive and supply industry, the electronics or solar industry – laser photoelectric sensors provide reliable and economical solutions to automation tasks in many areas. This include high-precision and reproducible applications for position, presence, overrun and height checking. And new and modified versions are continuously being released. The photoelectric sensors in the G6L product family, for example, will impress you across the board with both their standard mounting configuration of 1-inch spaced holes and also their functional characteristics. And the MultiTask photoelectric sensors in the PowerProx range have now been extended by the high performance WTT4SL in a miniature housing – for maximum flexibility in machine design. Thanks to the high energy density and convergence of the laser beam, the various laser sensors can master even the most demanding ambient conditions where LED sensors often reach their limits. So we can clearly say: spot on for the winner.

Deep depth of field allows for action in the foreground, middle ground, and background; perfect for blocking and staging chaotic scenes like the opening shot of ...

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Aspheric Optics in Detail. A conventional lens has a spherical front surface, meaning it has the same curve across its entire surface. Think of the surface ...

The P polarization components of the incident and diffracted beams are polarized parallel to the grating grooves; the S components are polarized perpendicular ...

SICK's vast range of photoelectric sensors offer precise optics and advanced technology, creating market-leading solutions with sensor intelligence. By using the latest SIRIC® and LED ...

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While the housings often look identical, they contain two different technologies depending on the application requirements. Neither is better or worse than the other, but simply the most suitable for the particular application. There are therefore laser sensors based on triangulation, and ones based on time-of-flight (ToF).

Oct 3, 2024 — Electric polarization, slight relative shift of positive and negative electric charge in opposite directions within an insulator induced by ...

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Apr 27, 2015 — Want to know the exact color of your wall, car or pet? Simply scan a surface with your camera lens and there you go.

Laser photoelectric proximity sensors with background suppression measure distances by calculating angles (triangulation). The emitted light is reflected by an object and hits the receiver element at a certain angle depending on the distance. Based on the position of the light spot on the receiver element, it is possible to determine the distance of the object. This measurement principle has two advantages. Firstly it allows you to configure a precise background suppression that can be used, for example, to reliably detect flat objects on a conveyor belt. Secondly, it enables even very close objects to be detected because the triangulation principle has virtually no geometrical blind areas. This principle of operation has certain limits, however, that are reached in particular in the case of very dark, weakly reflecting surfaces.

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