luminous ray


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luminous ray

One of the visible rays of the spectrum.
See also: ray
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References in periodicals archive ?
This was the place, when on a gorgeous autumn day, out on a game drive, I spotted not just a pride of lions a breath away, but also took in the bluest, brightest sky ever as the flaky white clouds parted and the luminous rays shone through.
The eyepiece of which we speak was formed with a plate of dark red glass inclined at 45[degrees] that reflects a small portion of the luminous rays, while it transmits a large portion of the others, and especially those of caloric value; the axis of the eyepiece by consequence remains at a right angle with the axis of the telescope.
One day, Our Lady answered his prayers in a most extraordinary manner: while he was preaching to the Indians and trying to make peace among them and the Spaniards, luminous rays of light emanated from the image in a most startling manner.