Very often, customers have asked "how high should be light?" And "what color is best for display or stele, which is located outside the building." Select the optimal size on the one hand is quite simple, with On the other hand, if you make a mistake in choosing the size indicator is the value of the reporting fall. Its corny just can not see. Thus, the size of a character directly related to the parameter maximum (minimum) distance visibility. When sizing should be determined with diapaznom distances with a short review possible future board or Stella. Must decide as to the angles at which the product will be seen. Knowing the distance easy to determine the size of the indicator. Prevedenaya formula for determining the size of the letters is quite simple: H (mm) = 2 * R (m) To determine the optimal size of the indicator taking the maximum distance in meters, multiply by two and the result is the height of the letters in millimeters. This ratio is approximately the difference because the image depends on two factors: the angular resolution of the eye and the image contrast.
This formula is valid for image with maximum contrast and angular resolution corresponds to the normal eye in one angular minute. If you chose not to display the contrast indicator that the actual maximum distance will be less. Optimally choose the font size in stock (and a half times more). The minimum distance of visibility is a parameter that reflects the image quality from close range. To assess this option, you can take the length of your 02/03 LED color products. Most of the best selling color in our customers' yellow on a dark (black, dark blue, etc.) background. To date, a variety of colors available performance indicators. The network bars pokryvaayutsya PVC film or paint.
Therefore vybror color depends on your imagination. The optimal solution is a bright light segments on a dark background. This solution avoids the obvious spots on the hands emerging after prolonged use. Light color paints or PVC film characterization is approximate. Accurate measure is the radiation wavelength. Here is a small sign for the aesthetes, which is important emission color. Light color Wavelength, nm red 640 – 700 600 Orange – 630 Yellow 580 – Yellow-green 590 550 -570 520 Green – 540 Blue-Green 500 – 510 B: Blue 440 – 480 We hope that our article has helped answer some of your questions .