Levels of ambient light are most frequently considered relative to additional lighting used as fill light, in which case the ambient light is normally treated as the key light. In some cases, ambient light may be used as a fill, in which case additional lighting provides the stronger light source, for example in bounce flash photography. The relative intensity of ambient light and fill light is known as the lighting ratio, an important factor in calculating contrast in the finished image.
Agency Reviews Patent Application Approval Request for "Device for Ambient Light Compensation for Optical Sensors Exposed to Both Useful Light and Ambient Light"
Feb 06, 2013; By a News Reporter-Staff News Editor at Electronics Newsweekly -- Elmos Semiconductor Ag has been issued patent application...