21-01-2013, 04:40 PM
Heliodisplay
[attachment=47924]
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.
Advantages:
• Virtual touch screen
• Uses no additives or chemicals.
• Actually 2D but appears 3D.
• Walk Thru Screen.
• Two sided images.
• System can be hidden away from sight
• Viewing requires no special glasses
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.
An Over view of Helio Display
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.
[attachment=47924]
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.
Advantages:
• Virtual touch screen
• Uses no additives or chemicals.
• Actually 2D but appears 3D.
• Walk Thru Screen.
• Two sided images.
• System can be hidden away from sight
• Viewing requires no special glasses
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.
An Over view of Helio Display
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.