Get the specifications – This might be a set of test points, the face of the speedometer as an appliqué, and some or all of the needle geometry.The design process may go something like this: Fortunately, LightTools helps you at each design challenge faced in a system like this. This can be particularly challenging to design because you need a non-linear extraction of light along the needle to achieve the uniform light distribution. A well-engineered needle will have uniform spatial appearance (luminance) along the length. Usually, the needle is wider at the bottom than it is at the top. Often, the numbers or the needles will have several spread out test points that a quality engineer measures in a dark room with a spectral photometer (or radiometer), which is also called a spot meter. Typically, items in an instrument cluster such as the speedometer, shift panel (PRNDL), temperature controls, and radio controls have manufacturer test point specifications for luminance (the illumination metric most closely associated with brightness) as well as color (u',v' or x,y color coordinates). The main design concerns with this type of lighting are color, visual uniformity, and appropriate light levels. Accent lighting generally has a much lower intensity than interior illumination fixtures since the goal is not to illuminate other objects in the cabin, but just to be visible itself.
The primary purposes of accent lighting is to provide styling cues, create a desired ambience and to locate various controls, such as power window controls and radio knobs, and other features, such as cup holders and charging ports, in a darkened cabin. Color can also a factor, both for visibility issues and for custom "mood" lighting. For Illumination systems, the key metrics are the geometry of the illuminated area, illuminance levels, and uniformity. These systems include dome lights, mirror lights to illuminate a face, map and reading lamps, storage lights, and so on.
#ILLUMINATE CARS DRIVER#
Interior Illumination systems provide light to enable the driver or passengers to see something else. For display and indicator lighting, the key metrics are color, luminance, and luminance uniformity. The exact process will depend on the type of vehicle you drive, but there’s usually some combination of pressing the trip-mileage reset button and turning the vehicle on and off.The driver uses displays and indicators to obtain information, which could be standard dashboard instrumentation information or more complex information from a navigation system, a menu-driven display, or a multimedia device.
It can also cause you to have a blowout or poor ride quality if you’ve overinflated the tire. It’s awfully tempting to just add some air to get the light to go off, especially if you don’t have a pressure gauge, but there’s no way you can know that you’ve inflated the tire to the proper levels. Is it blinking or is it solid? Did it come on while you were driving, or was there a major shift in air temperature recently? It’s important to understand what you’re looking at.
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