Products/Services for Fresnel Lens Manufacturer

  • Fresnel Lenses-Image
    Fresnel Lenses - (35 companies)
    Fresnel lenses resemble a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and not spherical. How to Select Fresnel Lenses. Image credit: Knight...
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    Fresnel Lens Specifications
    Focal Length
  • Optical Lenses-Image
    Optical Lenses - (447 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...
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  • LED Mounts and Lenses-Image
    LED Mounts and Lenses - (83 companies)
    Fresnel, or diffused. Lens color can be amber, black, blue, clear, green, natural, red, or yellow.
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  • Lens Holders-Image
    Lens Holders - (27 companies)
    Lens holders are used to stabilize and maintain the position of all the optical components of a lens assembly. Lens holders are used to stabilize and maintain the position of all of the optical components in a lens assembly. The primary purpose...
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  • Microscope Lenses and Objectives-Image
    Microscope Lenses and Objectives - (66 companies)
    Microscope lenses and microscope objectives include eyepieces or oculars, optical filters, objectives, adapters or mounts, condensers and other optical components for microscopy. Microscope lenses and microscope objectives include eyepieces...
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    Optical Lens Assemblies - (144 companies)
    Optical Lens Assemblies Information. Optical lens assemblies are composed of a number of lenses mounted for a particular imaging function. These can include telecentric lenses, collimators, beam expanders, zoom lenses, etc. Optical lens assemblies...
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    Projection Lamps - (55 companies)
    Projection lamps use a built-in reflector to concentrate light in a particular direction. They are used in applications such as slide projection, microfilm, overhead projection, movies, medical / scientific instruments, airport runways, and others.
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    Magnifiers - (171 companies)
    ...the hands of the operator.. Sheet. This type of magnifier is long and wide, but thin. It facilitates the examination of documents, photos, textiles, and other flat-surfaced specimens. A hemispherical or Fresnel-type lens is most common with this style...
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    Optical Design Services - (141 companies)
    Companies that design achromats and meniscus lenses may also design aspheric, ball, cylindrical, Fresnel, gradient index, and spherical lenses.
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    Optical Manufacturing Services - (266 companies)
    ...multiplexes and switches light signals. Laser optics can handle the strong intensity of a laser light source. Polarizing optics manipulate the polarization of incident light. Optical manufacturing services design, fabricate and finish lenses...
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The resolution of Fresnel zone plate (FZP) as X-ray lens is determined by the width of outer-most zone, and the diameter of condenser lens is desirable to be large so that bright x-ray beam is available in x-ray optical systems. As the diameter of FZPs with nm resolution reported so far is small...

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John Null, is in microcomputer programming and in the Fresnel lens beaming room light to the infrared sensor. The Fresnel lens is a special design that has both vertical and horizontal elements. Room light passes through it onto a two-element IR detector. "We've refined the detection technique...

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...sensitivity to the infrared energy given off by people. Second, a Fresnel lens positioned in front of...

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...the Helmholtz equation, the angular spectrum of plane waves, the. Fresnel-Kirchoff and Rayleigh-Sommerfeld theories of diffraction. They represent. wave propagation as a linear integral transformation closely related to the Fourier. transform. Chapter 5 discusses the Fresnel and Fraunhofer approximations...

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