As the term analog indicates, light is recorded as a linear chemical process or electric signal. This can be a reaction in a light-activated chemical compound, such as silver nitrate or silver iodide. In electronics this can also be a photoresistor based on cadmium sulfide, germanium or silicon. In this case the amount of electric current through the device is dependent on the amount of light that shines on it.
The retail digital printing opportunity: consumers are printing more digital camera pictures than ever in retail stores. What are the future trends? What can you do to get the business now?(Cover Story)
May 01, 2004; Although early users of digital cameras tended to print their images at home--if they printed them at all--the shift towards...