Ambilight
Ambilight (from English ambient "environment" and light "light") is a technology developed by Philips for televisions , which is intended to enlarge the device's field of vision in the perception of the viewer and thus protect the eyes . In addition to the visual effect, Ambilight technology promises to reduce a large part of the eye discomfort that can occur in connection with a television as the only light source in a room.
development
In the first Ambilight model series from 2004, only different colored lighting tubes were embedded in the back of the television sets and the user had to use the remote control to select the desired color with which the background was to be illuminated. With the Ambilight 2 technology, lamps are attached to the side of the television , which adjust their color independently and in real time - depending on the dominant color of the current television picture - and illuminate the entire environment accordingly . The second Ambilight generation also offers a two-channel function that can automatically adjust to the colors on the left and right sides of the screen. For example, when football is broadcast, the green of the lawn ensures that the area around the television is illuminated in green.
Surround / Aurea
As a supplement to the normal Ambilight with additional light strings, Philips offers the Ambilight Surround or Ambilight Aurea system . The television hangs in front of a permanently installed white screen onto which the light is projected. Surround offers two variants, which differ in the number of lamps on the device. In addition to Surround, with another light source at the top of the screen, Ambilight Full Surround has another light source at the bottom. With the latter, all four sides of the television can appear in different colors.
Spectra
Another product was added in 2008 in order to be able to display color transitions instead of simply coloring a page. Philips launched Ambilight Spectra . With Ambilight Spectra 2, the LCD TV has a total of 4 light-emitting diode strings, 2 of which are on each side. If, for example, advertising banners and football turf are shown on one side , instead of choosing a colorant as usual, the upper half is illuminated in the color of the advertising board and the lower half is illuminated in the color of the turf.
Ambilight Spectra 3 also has a string of LEDs on the top of the device.
Replicas
There is a project called Atmolight , which is committed to recreating this technology on the basis of open source components and software, so that any TV set can be equipped with the technology.
The open source -Lichtprogramm PC DIMMER and freeware DMXControl 2 offer the possibility of any computer monitor or projector in conjunction with LED headlights retrofit with Ambilight.
There are dozens of projects related to the Raspberry Pi for retrofitting Ambilight to practically every TV system.
Ambilight sensor
The term Ambilight is also used for Ambilight sensors . These are light sensors on screens that detect the ambient brightness. As with Ambilight lighting, the aim here is also to reduce the difference in brightness between the screen and its surroundings. The adjusted size is not the ambient brightness, but the screen brightness. The stronger the lighting, the brighter the image. A corresponding darkening takes place in low light.
Web links
- www.philips.de Ambilight on the Philips website
- Atmolight
- Standalone DIY AmbiLight clone - No PC required.
- VLC Ambilight - cross-platform implementation of the Ambilight for the VLC media player.
- PC_DIMMER
- DMXControl 2 Ambilight plugin
Individual evidence
- ↑ Prof. Begemann - Description of experiments in psychological studies on Ambilight (PDF)
- ↑ presse.philips.de (PDF) ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
