In present work a compound holographic optical element system. I holographic optical elements as scanning lidar telescopes. Rajan, and became a name to reckon with in high security hologram manufacturing. Transparent holographic optical elements for display applications. The prototypes presented in this paper show that the idea can be used for the peripheral areas of the human vision and for widefov hmds. These holographic optical elements hoe have the advantage of being cheap due to their simple design, small size, low weight and are easily reproducible by embossing polymer materials.
This involves combining hoes designed to produce the desired. Oct 23, 2012 for the love of physics walter lewin may 16, 2011 duration. We describe practical methods for creating arbitrary con. A novel approach is described for the holographic elements used in the. Among holographic concentrators, volume holographic optical elements vhoes have been proposed for use as solar concentrators. Holographic optical elements encoded security holograms. For the love of physics walter lewin may 16, 2011 duration.
Combining optical holograms with interactive computer graphics t oday, many applications for optical holograms exist, including interferometry, copy protection, data storage, and holographic optical. Threedimensional holographic head mounted display using. Basic principles and applications of holography spie. In this chapter, the basic theories and the specific analysis for the fullcolor holographic optical element are explained. The first part deals with the theory of holographic imaging, the characteristics of the reconstructed image and the different types of holograms.
The solar radiation is the major renewable source of power. The interference pattern is captured by the film and processed. Friesem we present novel, to our knowledge, methods for the analytical design and recording of planar holographic optical elements in thick materials. The first and still the finest prepress house in kerala, process color, kochi, india. In present work a compound holographic optical element system consisting of holographic grating and a holographic lens has been fabricated on a single high resolution holographic plate pfg01. Design and fabrication of an optimum holographic optical element lens for a femtosecond laser pulse using a hologram computeraided design tool yasuhiro awatsuji, yuu shiuchi, aya komatsu, toshihiro. When a light source, such as led, is projected onto the. For example, cgh is used to make holographic optical elements hoe for scanning, splitting, focusing, and, in general, controlling laser light in many optical devices.
Holographic materials and optical systems download link. Our hoe products includes, holographic reticles holographic transmission grating holographic reflection grating holographic lens holographic diffuser holographic photonic crystal holographic quasi photonic crystal holographic coupler holographic beam splitter holographic beam combiner. Dichromated gelatin and photoresists are among the holographic recording materials used in forming holographic optical elements. Scale of zones and lack of organized phasing kinoform. G03h 1 introduction since the earliest days of market trade, counterfeit goods have existed. A holographic optical element hoe is an optical element such as a lens, filter, beam splitter, or diffraction grating that is produced using holographic imaging processes or principles. Holography approach improves heads up displays for planes.
Holographic optical elements are holographic images embedded onto a thin, clear photopolymer film that can be applied to glass or acrylic surfaces. Holographic optical element has a high diffraction efficiency and a narrowband frequency characteristic, and it has a characteristic that is able to implement several features in a single flat. Holographic optical elements and application intechopen. These photopolymer films have potential in photonics applications, such as diffractive optical elements. Optical holography is a method for storage and displaying a threedimensional image of an object. Holography approach improves heads up displays for planes and cars 12 march 2018 the new headsup display uses holographic optical elements to inject an image into the glass, or waveguide. Combining optical holograms with interactive computer graphics.
Describes the process of design, implementation, and evaluation of a variety of holographic optical elements. Security holograms, holographic optical elements encoded holograms, concealed coded holograms, optical security ipc code. Efficient multipleimage holographic optical element. Computergenerated holographic optical tweezer arrays. Seethrough display combined with holographic display and maxwellian display using switchable holographic optical element based on liquid lens. Diffractive optical elements does utilize diffraction at submicron features. Pdf holographic optical elements and application researchgate. Volume holographic optical elements as solar concentrators. Provides an extensive overview of holographic materials including preparation, handling, and processing techniques. Especially, the fullcolor hoe has been studied for the wearable device in these days.
The next section covers the practical aspects of holography optical systems, light. Our hoe products includes, holographic reticles holographic transmission grating holographic reflection grating holographic lens holographic diffuser holographic photonic crystal holographic. Holographic optical element is widely developed in augmented reality, virtual reality, and threedimensional display application. Holographic optical elements hoes recorded with arbitrary aspheric wavefronts can now be analyzed with a holographic ray tracing design program. Design, fabrication and characterization of computer. Holographic optical elements hoes provide systems of thinfilm optics that could include a variety of functions and have many advantages as optical devices in various research fields. Holographic optical element has a high diffraction efficiency and a narrowband frequency characteristic, and it has a characteristic that is able to implement several features in a single flat device. We have pioneered the development of synthetically generated holographic optical components for use at soft xray wavelengths 39, 40, 56, 57. The light enters the glass and bounces back and forth between its front and.
Holograms and holographic optical elements intentionally. Holographic optical elements for the construction of tandem. We have investigated and developed the use of holographic optical elements hoe and holographic transmission gratings for scanning lidar telescopes. Produced by interfering two or more beams binary optics. Threedimensional holographic head mounted display using holographic optical element heejae kim, sungkeun lee, meilan piao, nam kim and jaehyeung park. They are used in tasks such as measuring the spring constant of dna. Luminit transparent holographic components lightweight and highly efficient, the components use holographic optical elements to direct light without the need for bulky conventional optics.
As generalized diffractive optical elements, they represent the ultimate in the application of modern computer and microfabrication technologies to the control and manipulation of electromagnetic radiation. Includes exercise problems and laboratory experiments. G03h 1 introduction since the earliest days of market trade. Fullcolor holographic optical elements for augmented. Compared with conventional refractive and reflective optics, vhoes. This book presents a selfcontained treatment of the principles, techniques and applications of optical holography, with particular emphasis on recent developments. Made by staircases that approximate the ideal surface relief.
Osa describing holographic optical elements as lenses. Besides refractive and reflective components, planar diffractive optical elements are promising for free space optical interconnects. Holographic optical elements encoded security holograms with. Holographic optical elements with ledbased optics luminit llc. Pdf on apr 8, 2019, huiying wu and others published fullcolor holographic optical elements for augmented reality display find, read and cite all the. A novel approach is described for the holographic elements used in the holographic sight, in which the parameters are defined and measured as per their intended final application. It relies on the principle of interference to produce an image.
The recording of each planar holographic element is done. Compared with conventional refractive and reflective optics, vhoes can be thinner and more lightweight and have the potential for being very inexpensive in mass production. I describe its historical development, its basic principles and some examples of its practical application in optical systems. Multilayer photopolymer for broad spectral range holographic optical. As generalized diffractive optical elements, they represent the ultimate in the application of modern computer and microfabrication technologies to the control and manipulation of electromagnetic. General design parameters and image quality of holograms on both planar and spherical. By rotating a flat hoe in its own plane with the focal spot on the rotation axis, a very simple and compact conical scanning telescope is possible. However, in recent years, the problem of counterfeit goodsdocuments has attained a serious dimension. Conventional methods of measuring the various parameters of holographic optical elements are tedious for mass production.
Optical systems including holographic optical elements and fresnel gratings can be designed with ordinary lens optimization computer codes. Mar 12, 2018 the new headsup display uses holographic optical elements to inject an image into the glass, or waveguide left. Since then, both artistic and scienti c communities have explored the eld enthusiastically, nding numerous applications in holographic optical elements hoes, optical storage, imaging, and of course, visual. Phase modulation from surface relief holographic optical element.
The content of this chapter is focused on holographic optical elements hoes, which are diffractive elements fabricated by recording the interference pattern of an object and a reference wave in a photosensitive emulsion. Compound holographic optical element system for splitting. Home ebooks field guide to holography holographic optical elements translator disclaimer you have requested a machine translation of selected content from our databases. Each type of display has advantages for the observer, but they are difficult to combine in a single system. Beside the wellestablished solutions based on refractive optics or surface gratings, volume holographic optical elements vhoes are a very attractive alternative in this field. Silver halide sensitized gelatin shsg holograms are similar to holograms recorded in dichromated gelatin dcg, the main recording material for holographic optical elements hoes. Silver halide materials can be processed in such a way that the final hologram will have properties like a dcg hologram. Holography, on the other hand does not utilize a lens to form a latent image. The new headsup display uses holographic optical elements to inject an image into the glass, or waveguide left.
We have developed and investigated the use of holographic optical elements hoes and i holographic transssoo gratings for scanning ridiu tekscopes. I describe its historical development, its basic principles and some examples of its practical application. Holographic elements are represented as lenses with very. Optical clock distribution is an attractive technique to avoid clock skew in highspeed digital systems. Holographic optical elements optical elements such as lenses, beam splitters, diffraction gratings and filters can be produced by holographic imaging. The holograms have a high reflectance and transmittance and a variable spectral. For example, cgh is used to make holographic optical elements hoe for scanning, splitting, focusing, and, in general, controlling laser light in many optical devices such as a common cd player. Holographic elements are represented as lenses with very large indices of refraction and very small curvatures. Computeroriginated aspheric holographic optical elements. Pdf holographic optical element has a high diffraction efficiency. Thin combiner optics utilizing volume holographic optical. The drawback of dcg is its low energetic sensitivity and limited spectral response. Computergenerated optical elements can be recorded quickly, easily, and at low cost.
Provides an extensive overview of holographic materials including preparation, handling, and. In this chapter, the principle and characteristics of the holographic optical elements are described in detail, and few typical holographic optical. Seethrough display combined with holographic display and. Popular summary holographic optical elements as scanning. Combining optical holograms with interactive computer. Novel optical elements based on volume holography perform unique functions, which have attracted much attention in modern science and engineering. Osa holographic optical elements recorded in silver halide. Diffractive elements can be singleorder or multiorder patterning resolution x area sbwp is a measure of absolute design freedom phase encoding techniques provide the effective design freedom very. We will report on the requirements of the optical system in respect of necessary light power and its equipartition to the photoreceivers.
Holographic 3d imaging methods and applications to cite this article. Pdf fullcolor holographic optical elements for augmented. Combining optical holograms with interactive computer graphics t oday, many applications for optical holograms exist, including interferometry, copy protection, data storage, and holographic optical elements. In order to combine the solar concentrator and sun tracking functions in a. Friesem we present novel, to our knowledge, methods for the analytical design and recording of planar holographic. Compound holographic optical element system for splitting and. The content of this chapter is focused on holographic optical. Testing of holographic optical elements for holographic gun. We first present issues of wide fov and previous widefov hmds, then present our hmd prototypes and user tests. When a light source, such as led, is projected onto the surface, the invisible recorded holographic images come to life.
A holographic optical element hoe is an optical element that is produced using holographic imaging processes or principles. Applications of holographic optical elements and systems. The recording wavefronts are defined by analytical phase functions, for example, a two dimensional polynomial expansion. Holographic optical elements hoe for high efficiency illumination.
For short lengths free space distribution by holographic optical elements hoe has specific advantages. Introduction the holographic screen 1 is a diffractive optical element doe constructed by holographic techniques in order to. No matter where you are in your career, we would welcome you and encourage you to consider joining our community. Integration of light directing holographic optical elements roe into the envelope. Holography approach improves heads up displays for planes and. Design and fabrication of an optimum holographic optical element lens for a femtosecond laser pulse using a hologram computeraided design tool yasuhiro awatsuji, yuu shiuchi, aya komatsu, toshihiro kubota. As the index approaches infinity, the model becomes exact. Direct laser writing of surface reliefs in dry, selfdeveloping. Holographic optical tweezers use focused light to manipulate multiple objects independently without contact. Holographic optical elements for freespace clock distribution. Various types of combiner optics are known to the industry, all with their specific advantages and disadvantages. Holographic materials and optical systems covers recent research achievements in the areas of volume holographic optical elements and systems, development of functionalized holographic recording materials, and applications in holographic imaging and metrology. The light enters the glass and bounces back and forth between its front and back.