We can even zoom in here so that we can see better. We then play around with the brightness and contrast until the video background around the face turns completely black. Then scroll all the way down to video corrections options using the arrow on the bottom of the menu. Using the Panasonic RZ21K as an example again, this would mean using lens ET-D75LE20, a 1.7-2.4:1 zoom lens. To do this, go to Format and then Corrections. You have a screen that is 8m wide and you know that your projector will be placed around 15 meters away you need to calculate the correct lens, so:ġ5 /8 = 1.875 – Accordingly, search for a 1.87 lens ratio. When adhering to the last two sides/corners together you will see the plastic make a pyramid shape. Align the shapes by the sides keeping the short and long sides together. I found it helpful to cut the strip of clear tape in half, otherwise, the tape covers most of the hologram cone. A company known as Aerial Burton has created a holographic projector that uses a. Here is an example of those sums at work: Assemble: Use transparent tape to assemble the cone. Until recently, any 'hologram' examples have required glass, smoke, or water to bounce light from, but not anymore. Lens ratio x width of projected image = projector throw distance A new Kickstarter project is setting out to. Projector lenses all have different ‘throw ratios’ – the width of the image/screen relative to the throw distance.Īgain, there is a simple sum you can use to gauge the correct lens:Īlternatively, should you be considering a projector and want to know that the lens will be suited at the correct distance: Creating moving holograms has always been a dream of many technology enthusiasts since the days of star wars. ![]() Some lenses (particularly wide lenses) are fixed. Some lenses have zoom functions that will cover a range of distances. Large scale outdoor hologram projection/Holo-Gauze for creating pepper ghost hologram and presentation best 3d floating image. Many professional projectors have lens options to hire or buy. However, now that you have your brightness level estimated, distance must be considered to select the correct lens on your projector. ![]() It is a misconception that the distance of the projector from the screen effects the brightness levels.
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