The latest 3D-Projection technology is now available in the market. They have multiple features and applications for events. It also analyses how companies have used such technology to upscale their events. So how exactly does a 3D-Projection work?
Quartz, a new and upcoming digital company, recently created a very interesting and insightful video on 3D Projection Mapping.
Features of 3D-Projection
3D-Projection mapping, also known as video mapping or spatial augmented reality, is a projection technology that turns objects, often regularly shaped, into a display surface for video projection.
With the help of extensive Softwares, 3D Projection helps create mind-bending effects by warping the contents. This gives the image a physical and Real form. By using the technology of 3D Projection Mapping, you can captivate the audience by converting inanimate objects to look like Real illusions.
3D-Projection requires highly technical and advanced Audio/Visual (AV) technology and equipment, as well as architectural integrity of the system. It is the perfect way to take events to the next level and create something truly eye-catching and intrigues target audiences.
History of 3D-Projection
3D-Projection technology is relatively new in the Market. In 1969, Walt Disney’s Disneyland opened the first-ever 3D Haunted Mansion ride. With the help of this technology, it projected Horror Images to appear animated and real-like. This Revolutionary change in Technology and ideas set a new benchmark and attraction for all the upcoming and growing Theme Parks.
3D-Projection did not become an instant hit. In fact, it took close to a decade later for the application of projection mapping to resurface through an artist named Michael Naimark. He filmed people interacting with objects in a room. Later, he projected this, creating illusions as if the people and objects were for real.
By 2001, more artists began using projection mapping in their artwork. Groups such as Microsoft began experimenting with it to enhance technological advancement. The use of 3D projection has grown quite popular in creating 3D Movies.
Types of 3D-Projection
Active 3D comprises of battery-operated shutter glasses that rapidly shutter open and close. Due to this, there is a disparity in the visibility of the images depicted from your left and right eyes. From the TV’s technology perspective, it is important that each eye gets minimum 60 frames per second. For this, it needs to refresh quickly.
For Home use, Active 3D is available on Plasma, LCD and LCD LED. It is also available in all front and rear Projectors.
Passive 3D utilizes polarized glasses. A special filter is installed on the TV, that polarises each line of pixels. This special filter makes the odd lines on the screen only visible to the left eye, and the even lines only visible to the right. Therefore, the TV looks completely normal without the glasses, but appears animated when seen through the glasses. Passive 3D is available on some LCD and LED LCDs.
Active vs Passive 3D-Projection
Each eye gets full 1080p resolution from the source when using Active 3D. The 3D glasses make the image look dimmer since they block a certain amount of light. With LCDs, this problem is minimized due to their light displaying properties (Explained Below). But for plasma and front projectors, they become avidly more noticeable.
With passive 3D glasses, each eye is only provided up to 1920 x 540 due to the polarized lenses blocking half of the lines. Depending on how close you are or how big your screen is, certain jagged diagonal lines may be visible. However, more light makes it to your eye as compared to active, and thus, the image is generally brighter. The glasses used in passive are typically more lightweight and also cheaper as compared to active ones.
A great short video on the difference between active and passive 3D glasses.
Liquid Crystal Display (LCD)
LCD technology is commonly used to incorporate 3D-Projection. It allows light to pass through a liquid crystal material. They do not emit light directly but instead use a backlight or a reflector to produce images in color or monochrome.
Digital Light Processing (DLP)
DLP technology is commonly used with 3D-Projection. Unlike LCD, it is reflective. It allows light to bounce of digital micromirror devices (DMD) that reflect a single pixel in the resolution of the projected images. With proper control of each individual pixel, DLP technology facilitates better color control as well. It also facilitates a smoother, cleaner, seamless digital picture since the space between the DMDs is less than the space between the LCD crystal cells.
DLP projectors are usually brighter than LCD. This is because some light is lost while passing through the liquid crystal panels. Thus, DLP projectors use smaller units and can generate greater brightness than LCD projectors. It also uses less power to achieve the same level of brightness compared to LCD projectors.
Xenon lamp technology
Of all the 3 technology listed above, Xenon Lamp is the newest and latest method used for 3D Projection. It produces a broad spectrum of light that can be easily perceived by the human eye. By adjusting the level of powers to the lamp, light can be brighter or dimmer. Xenon lamps allow better control over the spectrum of colors in general and thus, are highly advantageous for 3D-Projection where control is essential. This brightness control also results in greater control over power consumption and lamp life and that influences your operational costs. It has features that are commonly used in night vision systems like – short-wavelength ultraviolet radiations and intense emissions.
Many companies use these proven-reliable technologies and integrate it with their respective technologies/innovation to generate advanced 3D-Projection experiences catered to their client’s needs. Many of these technologies are highly secretive and patented due to its niche specialization.
Other Available 3D-Projection Technology
Holoxica is an award-winning high-tech company. It specializes in holographic 3D visualization technologies including digital holograms and holographic video displays. Founded in 2008, this company started trading in 2012. It started off by selling digital holograms. Its Founder – Javid Khan has completed Doctorate Research into Holographic 3D Displays, and this company was a way to commercialize his research.
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RichTech System Ltd provides multimedia solutions to customers on a global scale. With companies located in Las Vegas, USA and Nanjing, China, RichTech caters to different customers and meets challenges. RichTech offers products such as interactive projection technologies, touch systems, virtual reality, and multimedia products to customers.
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