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  2. Optical cage system - Wikipedia

    en.wikipedia.org/wiki/Optical_cage_system

    Optical cage system in a vacuum chamber. An optical cage system is an optomechanical system that is used to mount optical elements such as lenses and mirrors together in a rigid assembly. Optical systems built this way can be more compact than can be achieved using an optical table, and the system provides more flexibility than an optical rail.

  3. This easy-to-use lightbulb camera is a quick way to add ... - AOL

    www.aol.com/lifestyle/lightbuld-security-camera...

    The easiest way to do that is with a security camera, and one of our favorites is the LaView 4MP Bulb Security Camera, and it happens to be on sale now for $29 for Amazon Prime members. LaView $29 $50

  4. Security lighting - Wikipedia

    en.wikipedia.org/wiki/Security_lighting

    Security lighting to prevent intrusions may be counter-productive. Turning off lights halved the number of thefts and burglary in Övertorneå Sweden. [2] [3] A test in West Sussex UK showed that adding all-night lighting in some areas made people there feel safer, although crime rates increased 55% in those areas compared to control areas and to the county as a whole.

  5. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    A home security camera system software on a Windows laptop for monitoring. Home security includes both the security hardware placed on a property and individuals' personal security practices. Security hardware includes doors, locks, alarm systems, lighting, motion detectors, and security camera systems. Personal security involves practices like ...

  6. Trouble light - Wikipedia

    en.wikipedia.org/wiki/Trouble_light

    A trouble light using a compact fluorescent lamp. From top to bottom are a hook, a cage, the switch and a handle in one molding. A trouble light, also known as a rough service light, drop light, or inspection lamp, is a special lamp used to illuminate obscure places and able to handle moderate abuse.

  7. Wireless security camera - Wikipedia

    en.wikipedia.org/wiki/Wireless_security_camera

    Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz. Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency. Most household routers, cordless phones, video game controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with a wireless security camera.

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