Casio pulls out ceramic lens out of the hat

Discussion in 'Digital Photography' started by Siddhartha Jain, Sep 29, 2004.

  1. http://www.dcviews.com/press/Casio-Lumicera.htm

    August 02, 2004, TOKYO, JAPAN - Using its proprietary optical
    technology, CASIO COMPUTER CO., LTD. has developed the world's first
    lens using transparent ceramics. This breakthrough will make it
    possible to create zoom lenses for cameras with greatly reduced
    profiles.

    Ever since CASIO's EXILIM thin card-size digital camera went on sale,
    the entire digital camera market has undergone a huge change. Compact
    digital cameras offering mobility in a small package have become
    mainstream, while there has been a major push in technological
    development to find better methods of creating smaller, thinner
    cameras.

    CASIO is continuing to take the lead in this field by creating the
    world's first transparent ceramic lens using LUMICERA, a transparent
    ceramic developed by Murata Manufacturing Co., Ltd.

    LUMICERA has the same light transmitting qualities as optical glass
    commonly used in today's conventional camera lenses, however it has two
    very important properties that caught CASIO's attention. Not only is
    LUMICERA's refractive index (nd = 2.08) much greater than that of
    optical glass (nd = 1.5 - 1.85 *2), it also offers superior strength.
    CASIO has been able to create a ceramic lens with extremely high levels
    of precision thanks to several factors. Under recommendations from
    CASIO, the material itself has been refined for use in digital camera
    optical lenses by endowing it with improved transmission of short
    wavelength light and eliminating pores (air bubbles) that reduce
    transparency. CASIO has also established a complete process involving
    the perfect combination of polishing material, time and pressure, and
    by treating the lens with a special coating compatible with a high
    refractive index.

    By incorporating this lens into the construction of the zoom lenses
    developed by CASIO over many years, a reduction in profile of
    approximately 20% has been made possible.

    ===========================================================================
    What does this mean to the digicam future?

    Cheers,

    Siddhartha
    Siddhartha Jain, Sep 29, 2004
    #1
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