Holography - Wikipedia
Holography is a technique that enables a wavefront to be recorded and later reconstructed. It is best known as a method of generating three-dimensional images, and has a wide range of other uses, including data storage, microscopy, and interferometry. In principle, it is possible to make a hologram for any type of wave.
全息摄影 - 维基百科，自由的百科全书
全息摄影 （英語： Holography），又稱 全息投影、全息3D，是一种记录受摄物体 反射 （或 透射） 光波 中全部訊息（振幅 、 相位）的 照相 技术，而物体反射或者透射的光线可以透过记录胶片完全重建，彷彿物体就在那里一样。 透过不同的方位和角度观察照片，可以看到受拍摄物体的不同角度，因此记录得到的像可以使人产生 立体视觉。 1947年，英国匈牙利裔物理学家 [1] 丹尼斯·盖伯 [2] 发明了全像術，他因此项工作获得了1971年 诺贝尔物理学奖。 其它一些科学家在此之 …
How Holograms Work - HowStuffWorks
2023年8月30日 · Once you know the principles behind holograms, understanding how they can do all this is easy. This article will explain how a hologram, light and your brain work together make clear, 3-D images. All of a hologram's properties come directly from the process used to create it, so we'll start with an overview of what it takes to make one.
Holography | Optics, 3D Imaging & Laser Technology | Britannica
2024年11月22日 · holography, means of creating a unique photographic image without the use of a lens.
Physics of optical holography - Wikipedia
Holography is best known as a method of generating three-dimensional images but it also has a wide range of other applications. A hologram is made by superimposing a second wavefront (normally called the reference beam) on the wavefront of interest, thereby generating an interference pattern which is recorded on a physical medium.
How holograms work - Explain that Stuff
2022年3月26日 · Holograms are those shiny, metallic patterns with ghostly images floating inside them that help to defeat counterfeiters: they're very hard to reproduce so they help to stop people printing illicit copies of banknotes.
Holography - Simple English Wikipedia, the free encyclopedia
Holography is a way of making three-dimensional picture with a laser. It allows the holographer to make a more exact image than with photography. The holograph seems to move and change slightly to look as if it were three-dimensional. Holography uses the wave aspect of light.
Introduction to Holography - ThoughtCo
2019年3月2日 · Unlike a bird in a traditional photograph, a holographic bird is a three-dimensional image. Holograms are formed by interference of light beams from a laser. Holograms are made using lasers because laser light is "coherent." What this means is that all of the photons of laser light have exactly the same frequency and phase difference.
What is holography? |How does Holography Work - Physicswave
2020年6月28日 · The photograph showing the three-dimensional image of an object is called holograms (holos is the Greek word means ‘whole’). This technique becomes familiar after the invention of a highly coherent light beam of the laser. Danish Gabor was awarded the Nobel Prize in 1971 for his invention and development of the Holographic method.
4.8: Holography - Physics LibreTexts
Holography is the process of producing holograms and, although they are recorded on photographic film, the process is quite different from normal photography. Holography uses light interference or wave optics, whereas normal photography uses geometric optics. Figure 4.8.2 4.8. 2 shows one method of producing a hologram.