Digital Photography Blog: Digital Camera Reviews, Ratings, News, Tips and Tutorials.
February 2010
February 2009
January 2009
August 2008
July 2008
April 2008
March 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
Digital Camera Reviews and Ratings By manufacturer:
Canon | Casio | Fuji | HP | Kodak | Minolta | Nikon | Olympus | Panasonic | Pentax | Samsung | Sony | Misc. | Accessories | Lenses
Casio Press Release
CASIO Develops World's First Transparent Ceramic Lens Using Murata's LUMICERA *1
August 02, 2004, TOKYO, JAPAN - Using 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 ultra-slim, credit-card-sized 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 (n d = 2.08) much greater than that of optical glass (n d = 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.
Posted by Darren in our News category on August 02, 2004