Can a reflector be used to project more light?
An LED forwardly projects light in a narrow and well-defined cone of illumination. Placing a reflector behind an LED will contribute nothing to increasing light output since there is no light to reflect. Adding a reflector to NightStar would only increase the unit cost and complexity. However, by placing a precision lens at the appropriate point, light output from the LED can be effectively collected and collimated. The lens in NightStar was chosen specifically to maximize light projection. The lens also serves as a window, and due to its design it is able to withstand tremendous pressure. Therefore, with the use of one component, optimum light output and the ability to survive severe pressure environments is obtained.
