Products/Services for Fresnel Lens Laptop Projectors

  • Projectors-Image
    Projectors - (244 companies)
    ...or presentations and transparency devices that use a light source and lens to project an image from a transparent film medium. Specifications Projectors are commonly used in classrooms and conference rooms for presentations. A slide projector...
  • Fresnel Lenses-Image
    Fresnel Lenses - (22 companies)
    While the original lighthouse lenses are obviously very large, small- and medium-sized Fresnel lenses are used in projectors and TLR/SLR camera screens, respectively. Applications. When used for projection applications, Fresnel lenses reduce image...
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    Screens - (128 companies)
    Screens consist of a surface with openings of specific sizes. They may be made in many ways, including perforating a sheet, weaving metal wire or synthetic fibers or electroforming. Among other uses, screens are commonly used to provide open but secure separation for a clean environment and flying objects, debris or insects.
  • Optical Lenses-Image
    Optical Lenses - (482 companies)
    Achromats use at least two separate lens elements --one high-dispersion concave and one low-dispersion convex -- to achieve their corrective effect. An achromatic doublet. Image credit: Encyclopedia of Science. Fresnel Lenses. Fresnel lenses consist of thin...
  • Camera Lenses and Video Lenses-Image
    Camera Lenses and Video Lenses - (269 companies)
    Camera lenses and video lenses attach to video cameras for use in machine vision, quality monitoring, security, and remote monitoring for industrial and commercial operations. This search form does not cover consumer video camera lenses. Camera...
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    Optical Lens Assemblies - (181 companies)
    ...is commonly used with still, video, motion picture camera, projectors, microscopes, telescopes, and other optical instruments. True zoom lenses or parafocal lenses maintain their focus when the focal length changes. Varifocal lenses lose their focus...
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    Zoom Lenses - (34 companies)
    ...lengths are associated with the greater magnification of distant objects. Typically, zoom lenses are used with still, video, and motion picture cameras; video, movie, and slide projectors; some types of binoculars, microscopes, telescopes...
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    Lamps - (1858 companies)
    ...slide projection, microfilm, overhead projectors, movies, medical and scientific instruments, and airport runways. Spectral lamps are lamps that radiate line spectra of various gases and metal vapors with high brightness and spectral purity. Stage...
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    LED Mounts and Lenses - (129 companies)
    Fresnel, or diffused. Lens color can be amber, black, blue, clear, green, natural, red, or yellow.
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    Notebook and Laptop Computers - (432 companies)
    Notebook and laptop computers unify basic computing components and peripherals into a single device. This portability is often at the expense of memory capacity and computing power. Notebook and laptop computers are personal computers which unite...

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  • Ultraprecision Machining-based Micro-Hybrid lens design for micro scanning devices
    The depth of Fresnel edge and the diameter was determined to be 0.94 µm and 423 .... The lens base mold was fabricated using a 5-axis ultraprecision machine, and the lens was imprinted .... Recently, slim pointing and scanning systems are creating great demand for use within mobile devices such as navigation systems, micro projectors , smart phones, smart televisions, ultra-slim camcorders, laptops , letter scanning, and finger print identification scanning systems.
  • Technology transfer in a diversified, Global Manufacturing Company
    They are seeking not only immediateapplications but, also, to gain an understanding of the phenomena that occur when surface structures are changed, For example: 9 Refraction governs the behavior of a fresnel lens with relativelylarge surfacestructures. .... are collected and focused to create a bright image on a screen, as with an overhead projector . .... a family of transparent films used to manage light in electronic displays in laptop computers, instrument panels…
  • Manufacturing methods for large microstructured optical components for nonimaging applications
    Keywords: Fresnel lenses , plastic optics, non-imaging optics, diffractive optics, compression molding, injection molding, polymer casting, microstructured optical components (MOC's). .... Have you ever made or seen a presentation where an overhead projector (OHP) or a liquid crystal .... Have you ever used a laptop computer?
  • Ultraprecision machining based micro-hybrid lens fabrication for scanning device
    With the process, the refractive lens can be optimized for 300 11m focal length and minimum aberration, the depth of Fresnel edge is determined to 0.94 11m by … dim-active design of PMMA (index 1.4985) lens , and also the maximum .... Recently, slim pointing and scanning systems are widely used for mobile device such as navigation, micro projector , smart phone, smart television, ultra-slim camcorder, laptop , letter scanning, and finger print identification scanning system.
  • A horizontal parallax table-top floating image system with freeform optical film structure
    The structure consists of pico- projectors , Fresnel lens , micro-lens array and sub-lens array with freeform shape. .... the living environment due to the improved techniques, such as 3D movie, television, laptop , exhibition, electronic billboard…
  • Interactive design center.
    The rear element is a Fresnel lens that collimates the light from the projector for uniform light distribution across the screen. .... when SmartBoard functions are required, or they can display other in-house computer, laptop or video source…
  • Color and brightness appearance issues in tiled displays
    A monitor or laptop screen, for example, drops to about 70 percent of maximum brightness in the .... High-end pro- jectors designed for tiling can achieve 80 to 85 percent cornerbrightnessrelativetothecenter.Commoditypro- jectorsaremuchlessuniformandwe’vefoundthatinex-. .... To correct for this, designers typ- ically place a Fresnel lens directly behind the screen to redirect the light, as Figure 9b shows.
  • LCD projection technology
    Projector Laptop PC. Panels. .... LENSES . .... Fresnel .
  • Optical gesture sensing and depth mapping technologies for head-mounted displays: an overview
    …list, Leap Motion developed recently a very promising gesture sensor tethered to a laptop or desktop computer. .... it can also be projected onto the hands or scene by a dedicated projector , or then entire … image reflected from an optical combiner (such as a 50/50 coated Fourier or Fresnel CGH – Computer … such static projector (the CGH is typically 1 sq.mm and the laser + lens 1.5mm diameter…
  • Protocol Volume 15 Issue 4 Fall 2010
    …as are web browsers, which are built into digital mixing consoles and are on people’s laptop computers. .... The Meisterstück uses a 600 W RGBW LED light engine and a large fresnel output lens to produce a uniformly colored beam with good color rendering that can be zoomed from 9 to 33 degrees. .... Appotronics is using a mechanism similar to the color system in DMD projectors to create an intense…