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  2. Photoelectric sensor - Wikipedia

    en.wikipedia.org/wiki/Photoelectric_sensor

    In this mode, an object is detected when the receiver sees the transmitted source rather than when it fails to see it. As in retro-reflective sensors, diffuse sensor emitters and receivers are located in the same housing. But the target acts as the reflector so that detection of light is reflected off the disturbance object.

  3. Retroreflector - Wikipedia

    en.wikipedia.org/wiki/Retroreflector

    A set of three mutually perpendicular reflective surfaces, placed to form the internal corner of a cube, work as a retroreflector. The three corresponding normal vectors of the corner's sides form a basis (x, y, z) in which to represent the direction of an arbitrary incoming ray, [a, b, c].

  4. Active camouflage - Wikipedia

    en.wikipedia.org/wiki/Active_camouflage

    Left: The cloth seen without a special device. Right: The same cloth seen through the half-mirror projector part of the Retro-Reflective Projection Technology. In 2003 researchers at the University of Tokyo under Susumu Tachi created a prototype active camouflage system using material impregnated with retroreflective glass beads. The viewer ...

  5. Modulating retro-reflector - Wikipedia

    en.wikipedia.org/wiki/Modulating_retro-reflector

    A modulating retro-reflector (MRR) system combines an optical retro-reflector and an optical modulator to allow optical communications [1] and sometimes other functions such as programmable signage. [2] Free space optical communication technology has emerged in recent years as an attractive alternative to the conventional radio frequency (RF ...

  6. Cat's eye (road) - Wikipedia

    en.wikipedia.org/wiki/Cat's_eye_(road)

    In New Zealand, roads are generally marked with white reflective cat's eyes every 10-metres along the centreline, occasionally on high volume roads; both Botts' dots and cat's eyes are used (typically there is one cat's eye followed by three Botts' dots places in every ten-metre stretch of highway). The colour pattern on New Zealand roads is ...

  7. 49ers unsure if backup running back Isaac Guerendo can play ...

    www.aol.com/49ers-unsure-backup-running-back...

    The San Francisco 49ers’ running back problems aren’t getting any better. 49ers head coach Kyle Shanahan confirmed Monday that Isaac Guerendo sustained a foot sprain in Sunday’s 38-13 win ...

  8. Before sharing your car: Does your auto insurance cover guests?

    www.aol.com/finance/auto-insurance-lending-car...

    Your car insurance typically covers family members and friends who infrequently borrow your car, but understanding the coverage limits helps protect you from unexpected costs.

  9. How the Trump tariffs on Taiwan chips could hurt the AI trade ...

    www.aol.com/finance/trump-tariffs-taiwan-chips...

    In the event of a “major manufacturing disruption,” the working paper estimated that the price of logic chips would jump as much as 59%, and US capacity would only be able to fill a portion of ...

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