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![Optical Components for Optical Pickups [Digital Optics]](images/index_tx002_1.GIF) |
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We have developed our range of optical pickups
for optical disc recorders and players, most notably CDs
and DVDs. By combining the precise optical design technologies
regarding refraction and diffraction, optical engineering
plastics molding technology and ultra-precision metal mold
technology, we have supplied the market with a wide range
of optical pick-ups.
Now, our products are widely used and highly appreciated
all over the world. |
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| Instead of conventional method for making diffraction
gratings, which entails evaporation onto glass plates and
a cutting-out process, Enplas was the first in the industry
to succeed in producing them by plastic injection molding.
This method enables accurate transfer of microscopic hologram
patterns having a pitch of several μm and depth of 0.5 μm.
We are currently producing these devices at a rate of several
million pieces per month. |
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Enplas is currently mass-producing diffraction
optical devices on a consistent basis. The steps include
diffraction pattern design, mold manufacturing, ultra-precision
molding processing, coating, and packaging design for ease
of handling.
The diffraction grating shown here accurately transfers a
difference in surfaces of several hundred nm, and has a difference
tolerance of ±0.005 μm. |
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| For more information about the Optical
Devices, please contact us. Our addresses and phone
numbers are available here. |
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