Hoya NDx2 HMC 52mm Y5ND2052 User Manual
Product codes
Y5ND2052
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THE PRODUCTION PROCESS OF
HOYA FILTERS
Each Hoya filter is the result of research, know-how and complete
precision facilities backed by full quality control.
precision facilities backed by full quality control.
Before production starts, controls are first programmed into a
computer. Then the finest materials are carefully mixed by an
automatic V-blender for absolute uniformity. After being melted with
highly sophisticated equipment, this material is then precision
molded with automatic direct pressing equipment. The pressed
blanks are next slowly and continuously cooled to remove strain,
and are then polished by high-speed, double-surface polishing
machines that assure precise surface quality and perfect flatness.
computer. Then the finest materials are carefully mixed by an
automatic V-blender for absolute uniformity. After being melted with
highly sophisticated equipment, this material is then precision
molded with automatic direct pressing equipment. The pressed
blanks are next slowly and continuously cooled to remove strain,
and are then polished by high-speed, double-surface polishing
machines that assure precise surface quality and perfect flatness.
Next is the coating process which improves the filter light
transmission ability. And the transmission characteristics are
checked by Spectro-Photometer, after which an ultrasonic cleaner
removes all foreign matter from the surfaces. Only after passing all of
Hoya's quality tests are the filters assembled, finished and made
ready for shipment to customers throughout the world.
transmission ability. And the transmission characteristics are
checked by Spectro-Photometer, after which an ultrasonic cleaner
removes all foreign matter from the surfaces. Only after passing all of
Hoya's quality tests are the filters assembled, finished and made
ready for shipment to customers throughout the world.
HOYA SEES AND RESPONDS TO
THE NEEDS OF TODAY
HOYA
Corporation has diversified its operations by capitalizing on
the potential of optoelectronic technologies since its establishment in
1941 as Japan's first specialty manufacturer of optical glass. Today,
Hoya is active in four fields of business: Information Technology business
makes mask blanks and photomasks for semiconductor devices and
liquid crystal panels, optical lenses, and glass memory disks for hard disk
drives. The Eye Care provides eyeglasses and operates contact lenses
retail shops, as well as makes intraocular lenses for cataract surgery. The
Life Care Business provides endoscopic system. The Imaging System
produces SLR/compact digital cameras and interchangeable lenses as
well as digital camera lens module and microlens.
1941 as Japan's first specialty manufacturer of optical glass. Today,
Hoya is active in four fields of business: Information Technology business
makes mask blanks and photomasks for semiconductor devices and
liquid crystal panels, optical lenses, and glass memory disks for hard disk
drives. The Eye Care provides eyeglasses and operates contact lenses
retail shops, as well as makes intraocular lenses for cataract surgery. The
Life Care Business provides endoscopic system. The Imaging System
produces SLR/compact digital cameras and interchangeable lenses as
well as digital camera lens module and microlens.
INFOMATION TECHNOLOGY
EYE CARE
MEDICAL
IMAGING SYSTEM
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