retroreflective การใช้

• Hot spotting is less of a problem with retroreflective high gain screens.
• The words Waterloo Regional Police appear in white retroreflective text with a navy blue outline.
• Heiligenschein around head of Buzz Aldrin's shadow due to extreme retroreflective properties of lunar regolith.
• Retroreflective road marking material can also be applied to the curb itself to make it more conspicuous.
• Retroreflective material can be used to represent the tracking points by illumination with an infrared light source.
• Garments must have retroreflective strips 1 inch wide and a minimum of 217 square inches of fluorescent material.
• The 60 historical floodgates are renovated and enhanced by a retroreflective coating making the use of street lighting obsolete.
• These devices are made with retroreflective materials that reflect light from headlights back towards the driver's eyes.
• With retroreflective screens, the screen center might be brighter than the screen periphery, a kind of hot spotting.
• Modern condenser lenses incorporate optical features specifically designed to direct some light upward towards the locations of retroreflective overhead road signs.
• A ring of LEDs around a video camera, aimed forward into a retroreflective background, allows chroma keying in video productions.
• The standard specifies three classes of activities and the minimum quantity of fluorescent and retroreflective material to be worn in each class.
• Nearly a half of British police forces use the retroreflective livery on the sides and red and yellow chevrons on the rear.
• Frequently quoted gain levels of various materials range from 0.8 of light grey retroreflective surfaces reflect light back toward the source.
• Retroreflective screens are seen as desirable due to the high image intensity they can produce with a given luminous flux from a projector.
• A newer technique is to use a retroreflective curtain in the background, along with a ring of bright LEDs around the camera lens.
• Button copy is no longer manufactured; technologically it has been supplanted by retroreflective sheeting made by various manufacturers in numerous colors and grades.
• The material is retroreflective, meaning it reflects light directly back to a light source, such as toward a car's headlights.
• The license plate has a retroreflective coating and the headlights have parabolic reflectors-both ought to give a nice strong return for the laser.
• This is a special case where the incoming ray is exactly retroreflective sphere, the incoming and outgoing rays are approximately parallel in special cases .)