Exact(3)
Considering a rectangular signal formed by luminous points, shown in a schematic representation in Figure 2, the visual acuity of the observer (1/δ) will define, for an observation distance D, the maximum separation between LEDs (d) from which the signal is perceived as homogeneous.
In one piece, Blatella Luminaire, insects swirl around luminous points of light.
Other stars, mostly in the Milky Way, are visible from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth.
Similar(55)
Kepler offered a punctiform analysis, stating that the rays emanating from a single luminous point form a cone the circular base of which is in the pupil.
The luminous point to the left of the E ring is a distant star, researchers said.
The luminous point-like cores of quasars were the first "high-redshift" objects discovered before the improvement of telescopes allowed for the discovery of other high-redshift galaxies.
Douglass once called the District "the most luminous point on American territory" where the ablest and best in America are sent to "shape the destiny of the Republic".
It has reappeared on the stand of Richard Green of London and its luminous style points to a date in the 1630s or the early 1640s.
But in the end it is the painting of Berdie Burger that lingers in the mind, a luminous sign pointing down a road not taken.
You will have seen hundreds of 17th- and 18th-century landscapes which draw your eye across a dark foreground to a luminous vanishing point as if looking through a window at an imaginary space.
And at some point he saw potential in his luminous prints of the Pantheon and Bernini's Colonnade at St. Peter's Basilica.
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Justyna Jupowicz-Kozak
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