4 ms·
When you say hologram, are you referring to something like a holographic sticker, or a star trek hologram?
by tragictrash 4y ago
When you say hologram, are you referring to something like a holographic sticker, or a star trek hologram?
- mlyle 4y agoHe's referring to not the star trek hologram, and not really the holographic sticker. This is one holographic plate illuminated by a laser, viewed from different viewpoints: https://en.wikipedia.org/wiki/Holography#/media/File:Holomouse2.jpg https://en.wikipedia.org/wiki/Holography#/media/File:Holomou... And it's not like those things with the bumpy lenses, that show you an image from a few chosen viewpoints, either. You can look at that mouse from a wide range of angles and distances. Handwavy, short explanation: All the light arriving back from the mouse-- in different directions-- is encoded into the speckles on the plate. When a coherent source of light is used to illuminate the plate, again, the light exits with the same characteristics it had entering the plate.