Instrument clusters, symbols, and indicators on the dashboard of an automobile are crucial for the safety and performance of the vehicle. Typical indicators in modern cars include the speedometer and temperature gauges; symbols to indicate if a door is open, a passenger is not strapped in, or the parking break is engaged; a warning light when the gas tank or oil pressure gets low; or the “check engine” light indicating a malfunction.
Demonstrating the Segmented Cross-Section Tool in Radiant's ProMetric® Software, which allows the user to draw a multi-segment measurement path (cross-section) within a backlit symbol to measure inner-symbol luminance (Lv) uniformity and evaluate variations.
Backlight UnitsFrom computer keyboards to movie theaters, from car dashboards to fasten-seatbelt signs, backlit symbols are all around us. A backlit sign is, quite literally, lit from the back: an illuminated light source called a backlight unit (BLU) is placed behind a surface. Text and shapes cut into the overlaid surface allow light to shine through, creating bright, visible symbols.
Radiant technologies are thoughtfully engineered to achieve the fastest, simplest, and most accurate measurements of light, color, and surfaces. Imaging colorimeters and photometers leverage scientific-grade CCDs, high resolution, low noise, and factory calibration to ensure consistency of data across R&D to production. Utilizing photopic filters, Radiant cameras acquire absolute luminance and color information to qualify devices against human visual perception.