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  2. Wireless clicker - Wikipedia

    en.wikipedia.org/wiki/Wireless_clicker

    A speaker giving a presentation with an RF pointer in his left hand. Using a wireless clicker, helps the presenter to move freely, instead of being obliged to stay next to the computer, can get closer and keep in touch with the audience, watching the presentation together with them, being able to use the built-in laser pointer, in order to emphasize specific points in the dialogue with the ...

  3. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/Laser_pointer

    Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.

  4. Comparison of display technology - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_display...

    TV: Yes DLP front-projection Flat (limited only by brightness) TV or presentation Yes LCoS self-contained rear-projection Flat 110 [13] 279 TV: Yes LCoS front-projection Flat (limited only by brightness) TV or presentation Yes Laser self-contained rear projection Flat lenticular: 75 [14] 191 TV: Yes LED: Flat 279.92 [15] 711 Billboards, TV: Yes ...

  5. Presentation technology - Wikipedia

    en.wikipedia.org/wiki/Presentation_technology

    At a more advanced level, flip charts, slide projectors, and overhead projectors can be used for displaying prepared content. The use of prepared material often results in a neater and more accessible presentation. Laser pointers or sticks are often used to highlight a particular point of interest within a slide or image. Many manufacturers ...

  6. List of common display resolutions - Wikipedia

    en.wikipedia.org/wiki/List_of_common_display...

    This chart shows the most common display resolutions, with the color of each resolution type indicating the display ratio (e.g., red indicates a 4:3 ratio). This article lists computer monitor, television, digital film, and other graphics display resolutions that are in common use. Most of them use certain preferred numbers.

  7. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Optical discs, laser pointers, data communications. 780 nm compact disc, 650 nm general DVD player and 635 nm DVD for Authoring recorder laser are the most common lasers type in the world. Solid-state laser pumping, machining, medical. InGaAsP: 1.0-2.1 μm Telecommunications, solid-state laser pumping, machining, medical.. lead salt 3-20 μm

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