11. Also, since this is new to me, do these telescopes require collimating ? 12. X-rays are produced and the beam is collimated to create a line. 13. Perfectly collimated light is sometimes said to be " focused at infinity ". 14. Backscattered light is then collimated by the same lens and collected by the fiber bundle. 15. Illumination is via a diffuse source set at the focal plane of a collimating lens. 16. Other elements, such as prisms and diffraction gratings often need large quasi-collimated beams. 17. Collimated beam pattern and D / S curve for all 16 spot frequencies has been taken.18. The flow is illuminated by a collimated laser beam, or by another source of light. 19. This is called a collimated display, a word derived from " co-linear ". 20. "Then we thought of collimating beams, and we were off . " e.