1. Also, as frequencies increase, parabolic reflectors become more efficient at focusing them. 2. The concave lenses of these mirrors were found to form parabolic reflectors . 3. The " dish " part is a ( typically ) parabolic reflector . 4. Parabolic reflectors are also a popular alternative for increasing wireless signal strength.5. The viewfinder is slightly smaller to accommodate the large parabolic reflector . 6. German physicist Heinrich Hertz constructed the world's first parabolic reflector antenna in 1888. 7. But behind this he fixed parabolic reflectors which concentrated the light. 8. The original source of light came from five whale-oil lamps with parabolic reflectors . 9. The unit consists of a 25 inch aluminum housing with a parabolic reflector . 10. The horn cluster is located approximately at the focal point of a parabolic reflector .
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