BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is illustrated and described herein with reference to various drawings, in which like reference numerals denote like apparatus components and/or method steps, and in which:
FIG. 1 is a front planar view of an LED wand according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of an LED wand according to an embodiment of the present invention;
FIG. 3 is a front perspective view of an LED wand shock sensor according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the interaction between a plurality of LED wands and an external means of controlling the display sequence in each according to an embodiment of the present invention;
FIG. 5 is a front perspective view of an LED wand, diffuser, and shock sensor according to an embodiment of the present invention;
FIG. 6 is a front planar view of an LED wand according to an embodiment of the present invention.
FIG. 7 is a front perspective view of an LED wand cylindrical diffuser and replaceable LED cartridge according to an embodiment of the present invention; and
FIG. 8 is a front planar view illustrating two LED wands interacting, sensing shock, and transmitting data according to an embodiment of the present invention
DETAILED DESCRIPTION OF THE INVENTION
Before describing the disclosed embodiments of the present invention in detail, it is to be understood that the invention is not limited in its application to the details of the particular arrangement shown since the invention is capable of other embodiments. Also, the terminology used herein is for the purpose of description and not of limitation.
Referring now to FIG. 1, a front planar view of a light-emitting wand, or LED wand, 10 is shown. The LED wand 10 is a small hand-held electronic device that is capable of displaying both colored visible light and near-infrared light. The main function of an LED wand 10 is to display a sequence of colors as part of a visual display composed of a collection of LED wands 10. The display sequence is controlled from one of several control sources. The LED wand has any suitable shape and/or dimensions such that it may be held in the hand of or otherwise attached to an individual. The LED wand is made of any suitable material such as plastic, metal, or the like.
The light-emitting wand includes a blue high-intensity LED 20, a red high-intensity LED 22, a green high-intensity LED 24, an infrared high-intensity LED 26, an LED control source for controlling the display sequence of colored lights, as referred to in more detail hereinbelow, a microprocessor 30, an infrared receiver 80, and a power source 40. In FIG. 1, the LEDs 20, 22, 24, and 26 are shown exposed, without a diffuser covering them. However, a diffuser is used to cover the various radiation sources, light-emitting sources, LEDs, or the like, as illustrated in later figures.
The physical assembly of the LED wand 10 components is maintained in a protective shell 70 and a handgrip 72. In FIG. 1, the LED wand 10 is hand-held; however, the LED wand 10 includes other means than hand-held and attaches by other means to an individual or location. The LED wand 10 further includes two finger-activated push buttons within the physical assembly of the LED wand 10: a power ON/OFF button 60, and a mode selection button 62. Within the physical assembly of the LED wand 10, wire connector means 32 are used to connect the microprocessor 30, various LEDs 20, 22, 24, and 26, and a printed circuit board. The wire connector means 32 include electronic wiring and/or a printed circuit board.
The LEDs 20, 22, 24, and 26 are all products known in the art and easily obtained through various microelectronic sales outlets. Although FIG. 1 illustrates the use of one blue high-intensity LED 20, one red high-intensity LED 22, and one green high-intensity LED 24, various quantities and configurations of LEDs may be used to produce various colors. It is well known in the art that selections from a plethora of color LED components and combinations could be used. Shown here in FIG. 1 is a simple example of LED combinations.
Using the three color LED components as shown, there are eight possible color combinations that may be illuminated from the LED wand 10. Since each colored LED 20, 22, 24 may be either ON or OFF, and since there are three colors, blue, red, and green, for the LEDs shown, there are eight possible color combinations. For example, if the blue high-intensity LED 20 if OFF, but the red high-intensity LED 22, and green high-intensity LED 24 are ON, the resultant color is the combination of equal parts of red and green emitted light.
The LED control source for controlling the display sequence of colored lights may be one of several options. For example, the LED control source may be on-board the LED wand 10 printed circuit board or it may be external to the LED wand. One on-board LED control source option includes an on-board memory which is used in the time-synchronized playback method for creating the visual displays. Another on-board LED control source option includes an on-board shock sensor which is used in the shock wave method for creating visual displays (shown in FIG. 8). An external LED control source method is the laser-based actuation method, using a bean scanning galvanometer, for creating the visual displays (shown in FIG. 4).
In the time-synchronized playback method, the LED control source is comprised of an on-board memory, located within the LED wand 10, storing an entire visual display sequence. Also included in the on-board memory is an information instruction set including time and display sequence information. An individual LED wand 10 is synchronized to other LED wands 10 by starting playback of the display sequence at a specific, common point in time. For example, to create a crowd-based display at a certain point in time at a stadium event and with various display sequences generated at the LED wands 10, the on-board memory is pre-programmed such that the various LED wands 10 in use in various stadium seating sections are synchronized on time and content for generating a crowd-based visual display. Instruction sets contained within the on-board memory can vary between the plurality of seating sections and individual seats within a stadium.
Referring now to FIG. 2, an electronic component circuit diagram for an LED wand 10 is shown. The circuit diagram is representative of how the various electronic components within the LED wand 10 relate and how they are manufactured together on a printed circuit board. The microprocessor 30 is connected to the red, green, blue, and infrared LEDs 22, 24, 20, 26, respectively. A shock sensor 50 is included for detection of shock waves 52 from interaction between multiple LED wands 10. The LED wand 10 may operate in either a personal mode 66 or a receiver mode 64, as determined by user input at the mode selection switch 62. The personal mode 66 is for use as a stand-alone LED wand. While in receiver mode 64, the LED wand receives, through the IR receiver 80, infrared signals from external sources such as from the laser-based actuation, or laser galvanometer, method. The circuit diagram is also shown with a power source 40. The power source 40 includes direct current batteries, but other power sources of varying types such as rechargeable batteries, fuel cells, or the like, may be used. The power source 40 is initiated by a user depressing the ON/OFF switch 60.
Referring now to FIG. 3, a front perspective view of an LED wand shock sensor 50 is shown. A shock sensor 50 is well known in the art and is easily obtained through various microelectronic sales outlets. Once an LED wand 10 is moved, hit, or jostled in any manner, the shock sensor 50 recognizes, or senses, the shock waves 52 and the varying intensity of the shock waves 52. The shock sensor 50 is then capable of transmitting a signal with the detected shock waves 52.
In embodiments where the LED wand 10 also includes a shock sensor 50, such as in the shock wave method for creating visual displays, the shock sensor 50, once activated, triggers communication between two or more LED wands 10. As two or more LED wands 10 are tapped together, or otherwise moved, hit, or jostled, the action is detected by the on-board shock sensor 50 and various data streams 54, as shown for example in FIG. 8, are then transmitted between the LED wands 10 to produce various illumination patterns. For example, where two persons are in proximity of one another and each holding an LED wand 10, one taps the LED wand 10 of the other. The tapping is sensed by the shock sensor 50 on-board each of the two LED wands 10. As a result of the shock sensor 50 sensing the shock waves (as shown in FIG. 8), a visual display sequence is generated from the microprocessor and the visual display sequence is transmitted electronically from the microprocessor to the various LEDs. The visual display sequence information is also transmitted from the high-intensity infrared LED 26 of one LED wand 10 to the other LED wand 10. Thus, an eye-pleasing visual display is generated from each LED wand 10 after one LED wand 10 has tapped the other LED wand 10 and each has sensed shock as detected by the on-board shock sensor 50.
Referring now to FIG. 4, a schematic diagram illustrating the interaction between a plurality of LED wands 10 and an external (to the LED wand 10) means of controlling the display sequence in each is shown. The external LED control source method shown is the laser-based actuation, or laser galvanometer, method wherein the LED wand 10 and a beam scanning galvanometer 100 interact, creating colorful visual displays. Also shown are the IR pulse laser 104, a beam expander 102, and the mirrors 110 of the beam scanning galvanometer 100. A beam scanning galvanometer 100 is well known in the art and may be obtained through various microelectronic sales outlets. A beam scanning galvanometer 100 may have varying mirror 100 sizes and combinations and may operate at varying speeds of scanning. The digital control computer 106 acts as a source of video display content by transmitting a signal to a control board attached to a beam scanning galvanometer 100. This control board attached to a beam scanning galvanometer 100 translates the video signal, or abstraction of the signal, to an intermediate signal that drives the beam scanning galvanometer 100. The beam scanning galvanometer 100 directs the laser beam, and the IR pulse laser 104 is pulse-modulated (binary switching) according to a communications protocol that is custom designed for transmitting to the LED wands 10. This infrared protocol is based on a common transmission protocol used for remote controlling televisions and VCRs. The LED wand 10, which is represented as a reference point in the crowd 108, composed of various x,y coordinates to pinpoint an exact location, receives the signal by means of its IR receiver 80 and the microprocessor 30 processes the signal to control the LEDs, 20, 22, and 24, as shown in previous figures. Additionally, as shown in previous figures, the infrared LED 26 in an LED wand 10 is capable of transmitting display information to neighboring LED wands 10 so a display may be propagated across a crowd through peer to peer communication alone.
For example, where many persons are located throughout a stadium or the like, and as recognized by the beam scanning galvanometer 100 as a reference point in the crowd 108, and each holding or having an LED wand, multiple beam scanning galvanometers 100 scan the crowd. The digital control computer 106 acts as a source of video display content by transmitting a signal to a control board attached to a predetermined number of beam scanning galvanometers 100. Each beam scanning galvanometer 100 scans an area of a stadium and sends various visual display sequences, or data streams 54, to each reference point in the crowd 108. This is done by the X-Y scanning capabilities of the beam scanning galvanometer 100.
The laser actuation method of creating visual displays exploits people's persistence of vision, or ability to hold a color in place for a short but delayed amount of time. By scanning an IR pulse laser 104 quickly enough, the IR pulse laser 104 may create the illusion of a complete drawing or set of contours. This invention exploits this property of temporal dithering afforded by galvanometer-controlled lasers to rapidly transmit independent signals to large areas for controlling the color of a LED Wand that may or may not be in an expected region of the display.
Referring now to FIG. 5, a front perspective view of an LED wand 10, spherical diffuser 74, and shock sensor 50 is shown. The LED wand 10 is shown with blue, red, and green high-intensity LEDs 20, 22, 24 and an infrared high-intensity LED 26. The LED wand 10 is also shown with the microprocessor 30, hand grip 72, power source, 40, power ON/OFF button 60, and a mode selection button 62. The enlarged area view is also shown with a shock sensor 50 and an IR receiver 80.
A diffuser (a spherical diffuser 74 in FIG. 5 and a cylindrical diffuser 76 in FIGS. 6, 7, and 8) is a device used to scatter the light rays 28 from the LED sources 20, 22, 24, and 26 by the process of diffuse transmission, or light scattering. A diffuser 74 or 76 is generally made of a translucent material. The diffuser 74 or 76 also serves as a protective shell or cover over the LED components 20, 22, 24, and 26. Various diffusers 74 or 76 in size, shape, and of varying degrees of translucency, all of which are well known in the art, may be used for the LED wand 10.
Referring now to FIG. 6, a front planar view of an LED wand 10 is shown. This LED wand 10 is illustrated with a cylindrical diffuser 76. The LED wand 10 is shown with blue, red, and green high-intensity LEDs 20, 22, 24, an infrared high-intensity LED 26, and an infrared receiver 80. Light rays 28 from either visible color light or from infrared light are emitted from the various LEDs, 20, 22, 24, and 26. The LED wand 10 is also shown with the microprocessor 30, hand grip 72, power source 40, power ON/OFF button 60, and a mode selection button 62.
Referring now to FIG. 7, a front perspective view of an LED wand cylindrical diffuser 76 and replaceable LED cartridge 90 is shown. The color or infrared LEDs may eventually burn out and no longer emit light. Thus, the LED wand 10 provides a mechanism for easy replacement of the LEDs 20, 22, 24, and 26. As shown, a replaceable LED cartridge 90, containing the various LEDs, 20, 22, 24, and 26 may be inserted into the LED wand 10 when necessary.
Referring now to FIG. 8, a front planar view of two LED wands 10 interacting, sensing shock, and transmitting data is shown. This is the shock wave method for creating colorful visual displays, wherein physical touch, or shock, between two or more LED wands 10 may be detected using the on-board shock sensor 50 in each LED wand 10 to transmit visual display information in the form of data streams 54.
For example, as two or more LED wands 10 are tapped together, or otherwise moved, hit, or jostled, the action is detected by the on-board shock sensor 50 in each LED wand 10 and various data streams 54 are then transmitted between the LED wands 10 to produce various illumination patterns by instructions from the microprocessor 30 and transmitted through the high-intensity infrared LED 26, as shown in earlier figures. Where two persons are in proximity of one another and, one taps the LED wand 10 of the other. The tapping is sensed by the shock sensor 50 on-board each of the two LED wands 10. As a result of the shock sensor 50 sensing the shock waves, a visual display sequence is generated from the microprocessor and the visual display sequence is transmitted electronically from the microprocessor to the various LEDs. The visual display sequence information is also transmitted from the high-intensity infrared LED 26 of one LED wand 10 to the other LED wand 10. Thus, an eye-pleasing visual display is generated from each LED wand 10 after one LED wand 10 has tapped the other LED wand 10 and each has sensed shock as detected by the on-board shock sensor 50.
A preferred mode of practicing the invention is in large stadiums during sporting events, concerts, or the like. Traditionally, such crowd-based displays are concerted efforts of a crowd requiring the bearing of cards or colors in unison. The LED wand 10 based display of the represent invention, however, may be used anytime during the event as long as they are visible. In such crowd-based displays, the hand-held LED wand 10 serves as, or represents, a pixel, or display element that is part of a large crowd-based display composed of many LED wands 10.
A preferred mode is further comprised of a method for laser-based actuation comprised of a beam scanning galvanometer 100 for LED wand 10 control. In a manner similar to a CRT (cathode ray tube) display, an infrared pulse laser 104 transmits control data streams 54 from a digital control computer 106 to a large area covering hundreds or thousands of LED wands 10. By scanning the display area repeatedly and rapidly, thus determining a reference point in the crowd 108, dynamic display content may be sent to pixel locations in the area. The LED wands 10 need not remain in a static location, such as at one stadium seat number, as do traditional pixels in a visual display. Rather, the persons holding the LED wands 10 may move around independently and still receive and display the “correct” color, or color that is intended for the stadium zone of the display they are positioned in at any point in time. This provides a technical advantage of large scale displays and offers an artistic difference that may give the large display an organic or random nature to it. Despite movement of all pixels, a clear image may always be resolved by a viewer at a distance, such as a person in a blimp or on the opposite facing side of a stadium.
Although the present invention has been illustrated and described with reference to preferred embodiments and examples thereof, it will be readily apparent to those of ordinary skill in the art that other embodiments and examples may perform similar functions and/or achieve similar results. All such equivalent embodiments and examples are within the spirit and scope of the invention and are intended to be covered by the following claims.
Patent Application
20080007498
