22-01-2013, 03:56 PM
Heliodisplay Full Details
[attachment=48056]
INTRODUCTION
Even though modern technology has invested millions, even billions, into projection screen technology, high definition projectors, and even projectors for our cell phones, we have forgotten that we will always need something to project on.
Unfortunately, with the tragic proliferation of advertising these days, we are probably looking at a future world where all the space on the buildings is taken for billboards and other various projected ads. The only place that would not be taken is the spaces that people walk through.
However, that is an option that we can use, with the Heliodisplay or Fogscreen projector.
Displaying an image using conventional projectors requires a non-transparent medium, typically screens, walls, or even water, but air, which is transparent, cannot be used. A more recent development is the FogScreen, which creates an image in midair by employing a large, non-turbulent airflow to protect the dry fog generated within from turbulence. The result is a thin, stable sheet of fog, sandwiched between two layers of air, on which an image can be projected and even walked through. The Heliodisplay creates a similar effect, but, instead of fog, it uses a cloud of microscopic particles whose specific nature is one of the secrets Dyner keeps close to the vest. In 2005, the U.S. Patent Office granted Dyner a patent for a "method and system for free-space imaging display and interface". Apparently, the Heliodisplay creates a particle cloud by passing the surrounding air through a heat pump, which in turn cools the air to a level below its dew point, where it condensates, and is then collected to create an artificial cloud. The particle cloud is composed of a vast number of individual micro droplets, between 1-10 microns in diameter, too small to be visible to the naked eye, held together by surface tension. The focus and illumination intensity of the projected image can be controlled by changing some of the cloud's properties, enabling a sharper and brighter image.
Types of Displays
Head-mounted displays
Traditional augmented [7] and virtual reality often use head-worn, tracked displays [8] which draw virtual images di¬rectly in front of the user's eyes. World-stabilized 3D objects are possible using position and orientation head tracking to always draw objects from the correct point of view for the user. More sophisticated displays present different left and right images for stereo separation effects, but in general focal length remains constant across the entire image. These set¬ups typically only provide a private image which cannot be seen without cumbersome user-worn equipment - collabo¬ration requires each user wears separate display hardware. Artifacts such as misregistration and lag are commonly expe¬rienced problems that detract from the sense of presence in the virtual or augmented reality scene and may cause eye-strain, headache, and other discomforts.
Volumetric displays
While head-worn displays attempt to create the appearance of virtual objects within some work space, volumetric dis¬plays actually create the 3D image of a surface within a volume. The surface can be viewed from arbitrary viewpoints with proper eye accommodation since each point of light has a real origin in 3D. Tracking of the viewer is not necessary. Volumetric displays are based on a broad and diverse collection of various methods, technologies and ideas. Numer¬ous techniques incorporating e.g., fibre optics, mirrors or oscillating screens, have been developed to achieve this effect. Traub's display [9] creates a virtual image by varying the focal length of a mirror to produce a series of 2D images at different apparent depths. A real 3D image is generated by Actuality Systems' Perspecta display [10], which draws 2D images on a quickly rotating screen to fill the entire volume swept out by its path. The Depth Cube Z1024 display [11] takes yet another approach, using 20 stacked LCD panels to light 3D points in space without any moving parts.
Unfortunately, these displays all create their 3D imagery in a fairly small enclosed volume that the viewer cannot en¬ter. They are more suited for computer graphics than video applications due to the difficulty in capturing suitable natural imagery in 3D. One drawback is typically image transparency where parts of an image that are normally occluded are seen through the foreground object. Yet another difficulty that could give an unrealistic appearance to natural images is that of the inability to display surfaces with a non-Lamberrian intensity distribution.
Large translucent displays
The dnp HoloScreen [12] and the HoloClear [13] displays make the screen practically transparent from the viewer's point of view, showing only projected objects. They are examples of screens that consist of an acrylic plate that is coated with a holographic film, such that it catches only light that is projected from a 30-35 degree angle. A bright and clear image can thus be obtained in daylight conditions, while the display is transparent from the opposite side. These types of transparent displays are single-sided and not penetrable.
When a projection system is combined with user tracking and a large semitransparent display, the result is a projec¬tion-based optical see-through AR system. A serious limitation of such a setup, however, is its inherent single- 2.5.
Immaterial displays
There have been several displays using water, smoke or fog, with an early example presented by the Ornamental Foun¬tain from the end of the 19th century [15]. More recently, water screen shows such as Water Dome [16], Aquatique Show [17] and Disney's Fantasmic [18], spray sheets of freely flowing or high-velocity water to create impressive dis¬plays for large audiences. The magnitude and wetness of these screens, as well as their large water consumption, make them impractical for indoor or small-scale applications, as well as preclude the viewers from comfortably passing through the display space and seeing crisp images from short distances. However, these water screens may be large and look good if viewed from afar and on-axis.
AN OVERVIEW OF HELIODISPLAY
Basic Working
Heliodisplay looks high-tech, but it relies on fairly simple technologies. The Heliodisplay transforms ambient air using a proprietary multi-stage system of modifying the optical characteristics within a planar region in which polychromatic light is scattered on this surface such that the image appears visible to the viewer. An advanced optical tracking system monitors finger movement within in the image region and is translated into cursor control movements, enabling the Heliodisplay to be utilized both as an Input & Output device in two-dimensional space.
The Heliodisplay transforms surrounding air into a unique screen of fine vapour, suspended in mid-air to create a nearly invisible screen into which any image can be projected. The machine thus modifies the air above a video projector, creating a screen, which can display any kind of video. Images are then projected onto the water vapour via an internal projector and an external mirror, but you can also use a standard external projector of your own and leave out the mirror, which makes the final effect more compelling. The display can create a true 3D hologram effect when the right content is used. The image is two-dimensional, can be seen from several angles, and be manipulated by hand. The M2i
CONCLUSION
Heliodisplay provides a method and apparatus for generating true high-fidelity full color, high-resolution free-space video or still images with interactive capabilities. The system comprises a self-generating means for creating a dynamic, invisible or near invisible, non-solid particle cloud, by collecting and subsequentially ejecting condensate present in the surrounding air, in a controlled atomized fashion, into a laminar, semi-laminar or turbulent, particle cloud.The interactivity significantly expands the possibilities of the display.
Since 2004, IO2 Technology, the California-based company Dyner founded to commercialize his invention, began selling his device under the brand name Heliodisplay M2 for just under $20,000, out of reach of most consumers. IO2 Technology is actually marketing the M2 to corporate customers who would use the device as a novel way to display the company's logo or as a strikingly impressive advertising and promotional tool for exhibitions.
[attachment=48056]
INTRODUCTION
Even though modern technology has invested millions, even billions, into projection screen technology, high definition projectors, and even projectors for our cell phones, we have forgotten that we will always need something to project on.
Unfortunately, with the tragic proliferation of advertising these days, we are probably looking at a future world where all the space on the buildings is taken for billboards and other various projected ads. The only place that would not be taken is the spaces that people walk through.
However, that is an option that we can use, with the Heliodisplay or Fogscreen projector.
Displaying an image using conventional projectors requires a non-transparent medium, typically screens, walls, or even water, but air, which is transparent, cannot be used. A more recent development is the FogScreen, which creates an image in midair by employing a large, non-turbulent airflow to protect the dry fog generated within from turbulence. The result is a thin, stable sheet of fog, sandwiched between two layers of air, on which an image can be projected and even walked through. The Heliodisplay creates a similar effect, but, instead of fog, it uses a cloud of microscopic particles whose specific nature is one of the secrets Dyner keeps close to the vest. In 2005, the U.S. Patent Office granted Dyner a patent for a "method and system for free-space imaging display and interface". Apparently, the Heliodisplay creates a particle cloud by passing the surrounding air through a heat pump, which in turn cools the air to a level below its dew point, where it condensates, and is then collected to create an artificial cloud. The particle cloud is composed of a vast number of individual micro droplets, between 1-10 microns in diameter, too small to be visible to the naked eye, held together by surface tension. The focus and illumination intensity of the projected image can be controlled by changing some of the cloud's properties, enabling a sharper and brighter image.
Types of Displays
Head-mounted displays
Traditional augmented [7] and virtual reality often use head-worn, tracked displays [8] which draw virtual images di¬rectly in front of the user's eyes. World-stabilized 3D objects are possible using position and orientation head tracking to always draw objects from the correct point of view for the user. More sophisticated displays present different left and right images for stereo separation effects, but in general focal length remains constant across the entire image. These set¬ups typically only provide a private image which cannot be seen without cumbersome user-worn equipment - collabo¬ration requires each user wears separate display hardware. Artifacts such as misregistration and lag are commonly expe¬rienced problems that detract from the sense of presence in the virtual or augmented reality scene and may cause eye-strain, headache, and other discomforts.
Volumetric displays
While head-worn displays attempt to create the appearance of virtual objects within some work space, volumetric dis¬plays actually create the 3D image of a surface within a volume. The surface can be viewed from arbitrary viewpoints with proper eye accommodation since each point of light has a real origin in 3D. Tracking of the viewer is not necessary. Volumetric displays are based on a broad and diverse collection of various methods, technologies and ideas. Numer¬ous techniques incorporating e.g., fibre optics, mirrors or oscillating screens, have been developed to achieve this effect. Traub's display [9] creates a virtual image by varying the focal length of a mirror to produce a series of 2D images at different apparent depths. A real 3D image is generated by Actuality Systems' Perspecta display [10], which draws 2D images on a quickly rotating screen to fill the entire volume swept out by its path. The Depth Cube Z1024 display [11] takes yet another approach, using 20 stacked LCD panels to light 3D points in space without any moving parts.
Unfortunately, these displays all create their 3D imagery in a fairly small enclosed volume that the viewer cannot en¬ter. They are more suited for computer graphics than video applications due to the difficulty in capturing suitable natural imagery in 3D. One drawback is typically image transparency where parts of an image that are normally occluded are seen through the foreground object. Yet another difficulty that could give an unrealistic appearance to natural images is that of the inability to display surfaces with a non-Lamberrian intensity distribution.
Large translucent displays
The dnp HoloScreen [12] and the HoloClear [13] displays make the screen practically transparent from the viewer's point of view, showing only projected objects. They are examples of screens that consist of an acrylic plate that is coated with a holographic film, such that it catches only light that is projected from a 30-35 degree angle. A bright and clear image can thus be obtained in daylight conditions, while the display is transparent from the opposite side. These types of transparent displays are single-sided and not penetrable.
When a projection system is combined with user tracking and a large semitransparent display, the result is a projec¬tion-based optical see-through AR system. A serious limitation of such a setup, however, is its inherent single- 2.5.
Immaterial displays
There have been several displays using water, smoke or fog, with an early example presented by the Ornamental Foun¬tain from the end of the 19th century [15]. More recently, water screen shows such as Water Dome [16], Aquatique Show [17] and Disney's Fantasmic [18], spray sheets of freely flowing or high-velocity water to create impressive dis¬plays for large audiences. The magnitude and wetness of these screens, as well as their large water consumption, make them impractical for indoor or small-scale applications, as well as preclude the viewers from comfortably passing through the display space and seeing crisp images from short distances. However, these water screens may be large and look good if viewed from afar and on-axis.
AN OVERVIEW OF HELIODISPLAY
Basic Working
Heliodisplay looks high-tech, but it relies on fairly simple technologies. The Heliodisplay transforms ambient air using a proprietary multi-stage system of modifying the optical characteristics within a planar region in which polychromatic light is scattered on this surface such that the image appears visible to the viewer. An advanced optical tracking system monitors finger movement within in the image region and is translated into cursor control movements, enabling the Heliodisplay to be utilized both as an Input & Output device in two-dimensional space.
The Heliodisplay transforms surrounding air into a unique screen of fine vapour, suspended in mid-air to create a nearly invisible screen into which any image can be projected. The machine thus modifies the air above a video projector, creating a screen, which can display any kind of video. Images are then projected onto the water vapour via an internal projector and an external mirror, but you can also use a standard external projector of your own and leave out the mirror, which makes the final effect more compelling. The display can create a true 3D hologram effect when the right content is used. The image is two-dimensional, can be seen from several angles, and be manipulated by hand. The M2i
CONCLUSION
Heliodisplay provides a method and apparatus for generating true high-fidelity full color, high-resolution free-space video or still images with interactive capabilities. The system comprises a self-generating means for creating a dynamic, invisible or near invisible, non-solid particle cloud, by collecting and subsequentially ejecting condensate present in the surrounding air, in a controlled atomized fashion, into a laminar, semi-laminar or turbulent, particle cloud.The interactivity significantly expands the possibilities of the display.
Since 2004, IO2 Technology, the California-based company Dyner founded to commercialize his invention, began selling his device under the brand name Heliodisplay M2 for just under $20,000, out of reach of most consumers. IO2 Technology is actually marketing the M2 to corporate customers who would use the device as a novel way to display the company's logo or as a strikingly impressive advertising and promotional tool for exhibitions.