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Contact: Henry Yang
Company: China Magnet Source Material Limited
308,Tower B,Qiongzhu Garden , Huawang Rd, Dalang street, Longhua District, Shenzhen,China.
Shen Zhen 518109
China
Phone: (86) 755 28174720
Fax: (86) 95040 - 100263 542539
E-Mail: Send Inquiry
Date/Time:  8/9/14 9:02 GMT
 

Neodymium Permanent Magnets for Polarizing filter

Neodymium Permanent Magnets for Polarizing filter and color filter -
sales(at)china-magnets-source-material(dot)com ,

Polarizing filter is generally used on high-end, professional
photographic equipment.
The polarizer is mainly used to eliminate or reduce reflection of
light from the non-metallic surface.
Filter (UV lens) is mainly used to absorb ultraviolet when long
shot,
because the film is very sensitive to ultraviolet light.
When the polarizer / filter mounted on the lens, you need the
support of the magnet.

Like the circular polarizing lens, generally it uses ring-type NdFeB
magnets
which are very thin, very small, but with very strong magnetic
force.

These sintered ndfeb magnets are easily oxidized.
Coating is necessity here. And in order to keep consistent
appearance, we choose black epoxy.
Of course, as per design requirement, you also can use magnet
without coating
if magnet do not work in the air.

In China Magnets Source Material Limited, the first order of
magnets for color filter
is from a USA photographic equipment company.
Some companies from Europe and China also order this kind of magnet
since 2010.
Through several years' research and improvement, the production is
matured now.

For more information, please contact sales(at)china-magnets-source-
material(dot)com
Neodymium Permanent Magnets for Polarizing filter
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