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  2. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    A control panel is implemented to arm and disarm a home security system. The control panel is the main connection to the alarm company monitoring a home. It typically features a touchpad or buttons to easily maneuver the system, and some newer systems also feature voice control or wireless remotes (key fobs). [5]

  3. LCD projector - Wikipedia

    en.wikipedia.org/wiki/LCD_projector

    Epson owns the technology and has branded it as "3LCD". To market 3LCD projector technology, Epson also set up a consortium called the "3LCD Group" in 2005 with other projector manufacturer licensees of 3LCD technology that use it in their projector models. Early LCD systems were used with existing overhead projectors.

  4. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    Wireless home alarm system control panel A house alarm. A security alarm is a system designed to detect intrusions, such as unauthorized entry, into a building or other areas, such as a home or school. Security alarms protect against burglary or property damage, as well as against intruders. Examples include personal systems, neighborhood ...

  5. Digital light processing - Wikipedia

    en.wikipedia.org/wiki/Digital_Light_Processing

    A three-chip DLP projector uses a prism to split light from the lamp, and each primary color of light is then routed to its own DMD chip, then recombined and routed out through the lens. Three chip systems are found in higher-end home theater projectors, large venue projectors and DLP Cinema projection systems found in digital movie theaters.

  6. Epson - Wikipedia

    en.wikipedia.org/wiki/Epson

    In 2004, Epson introduced their R-D1 (the first digital rangefinder camera on the market), which supports the Leica M mount and Leica M39 mount lenses with an adapter ring. Because its sensor is smaller than that of the standard 35 mm film frame, lenses mounted on the R-D1 have a narrower field of view by a factor of 1.53. In 2006, the R-D1 was ...

  7. Passive infrared sensor - Wikipedia

    en.wikipedia.org/wiki/Passive_infrared_sensor

    A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.