A method of creating an image involves providing a plurality of light sources arranged in a one-dimensional matrix. The one-dimensional matrix is made up of a vertical column and at least two horizontal rows in which each of the horizontal rows has no more than one of the light sources. The light sources are blinked at their safe maximum current for at least two image_times that are within the range from about 30 milliseconds to about 200 milliseconds without damaging the light sources or electronic circuity controlling the light sources. Each of the image_times includes two or more display_times that are equal to LED On time. The light sources are moved relative to an observer, such that the observer will observe a two-dimensional image.
RELATED APPLICATIONS
The present application is a continuation of application Ser. No. 09/347,781 filed Jul. 6, 1999,"now U.S. Pat. No. 6,239,774," which is a continuation of application Ser. No. 08/740,647 filed Oct. 31, 1996, "now abandoned" which claims the benefit of priority under 35 U.S.C. .sctn.119(e) from provisional application Ser. No. 60/008,151, filed Oct. 31, 1995. All of these prior applications are hereby incorporated by reference in their entirety.
Described is a heads-up display system for an aircraft having a rotating propeller within view of at least one occupant of the aircraft. The heads-up display system comprises a plurality of light-emitting elements disposed on a side of a propeller blade substantially facing at least one occupant of the aircraft. A graphics generator turns one or more of the light-emitting elements on the side of the propeller blade on and off in accordance with the rotation of the propeller to produce a graphical image that appears to at least one occupant of the aircraft to be superimposed on a background. The graphical image can be produced to conform to an object in the background upon which the graphical image is superimposed.
A pixel-based display utilizes persistence-of-vision to sweep text and graphics in a cylindrical plane, including time and date, custom messages and animations. The display is generated from a light array with a column of modulated light emitting elements, which is mounted on a rotating display assembly. Power and data are combined on a fixed control assembly and inductively coupled to the display assembly. A control assembly processor interprets a display application language that describes display-specific tasks to generate command, mode, character and graphic data for the display assembly. The control assembly processor also reads a trigger position sensor and adds a trigger delay to generate a virtual trigger command, which provides for flexible display positioning and scrolling display effects.
A display device comprising a first body and a second body, the second body connected to the first body at a rotary connection. A display element, which may include one or more light-emitting diodes, is disposed on the second body. A controller is electrically connected to the first display element so as to vary the state of the display element in response to relative movement between the first body and second body.
A linear array of red LEDs 10R is provided so as to extend in a direction substantially perpendicular to a direction in which a swing-type display device is swung, and a linear array of green LEDs 10G is further provided, the red LEDs 10R and green LEDs 10G being arranged in pairs of two. A CPU activates each of the red LEDs 10R and green LEDs 10G for a predetermined period to emit light in a luminance level in accordance with image data. As a result, an image corresponding to the image data is displayed in the trajectory of the swing due to persistence of vision. Thus, an image can be displayed in various colors.
