Streetlight Shortcomings (image) The Optical Society Caption This photograph (left) illustrates some of the shortcomings of a traditional streetlight: light pollution, glare, wasted energy, and an uneven illumination of the ground. The perfect design for a streetlight (far right) would eliminate these problems. Credit Credit: Optics Express. Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.