- Cardboard VR
- Hologram Projector
- Mini Slide Projector
Cardboard VR - The Do-it-yourself VR headsets is a less expensive way to experience Virtual Reality. In this box we will make a cardboard VR headset and use a smartphone to simulate the VR screen.
you need to open something on your phone that has been specially designed for virtual reality. The easiest way is searching “VR Split Screen” videos on YouTube or a VR app. Then the smartphone screen will split. Instead of one big screen you get one little screen for each eye. Now your smartphone is ready to be a virtual reality screen for your cardboard headset.
Hologram Projector - A hologram is like a three-dimensional photograph. Photographs show only height and width. Holograms show height, width, and depth.
Creating an actual hologram using a laser is not something we usually do at home due to equipment and safety issues. However, we can create a 3D projection that looks like a hologram. In this project, we make a transparent, four-sided pyramid. The pyramid’s sides act as four mirrors, situated at 45° angles on a smartphone or tablet screen. The screen and pyramid become a hologram projector. When used with a holographic animation video, moving 3D images (holograms) appear inside the pyramid.
Mini Slide Projector - When light from the projector is shined through specialized photographs (AKA slides), it enlarges the photograph on the slide and displays the image on a screen or wall.
Inside the projector are several lenses that it uses to project parallel rays of light through the slide. While this is happening, a lens on the other side of the slide spreads the light rays back out, enlarging the image. That is where the focus feature of the lens comes in handy, in order to make each projected image sharp and clear. The size of the image can be adjusted by moving the projector further from or closer to the wall or screen it is projecting on.