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Precision Molded Aspheres – SUMITA OPTICAL GLASS Inc.

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Unlike the usual spherical lenses, aspheric lenses can correct problems such as image distortion and focal point misalignment with one or less lenses.

 

Specifications

  • With the uniting of SUMITA’s mold production technology and glass materials development technology makes it possible to manufacture precision molding aspheric lenses.
  • Aspheric lenses by precision molding are used in digital cameras, pickup lenses, and in the field of optical communications.
  • Available lens diameter: 1.0 mm – more than 30 mm
  • High precision: roughness Ra 0.003 um (our best measurement value)
  • Typical volumes are available from some pieces for trial production including optical design to series production (up to 100 thousand pcs.)
Lens diameter φ1 mm – φ30 mm
Center thickness 0.5 mm – 20 mm
Lens shape Biconvex, convex-concave, biconcave
Curvature radius 0.6 mm – upon request
Coating AR and other types of coating
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SUMITA OPTICAL GLASS, Inc.
SUMITA OPTICAL GLASS, Inc.

As a leading innovator in glass science and optical design

SUMITA has been working diligently in the field of light and optical glass since its foundation in 1953.
At the time when glass materials were mainly imported, and not produced in Japan,
SUMITA started manufacturing of optical glass, and later established advanced precision processing technology.
Furthermore, from 1960s,
SUMITA has developed its optical fiber technology,
and built an integrated production system that allows manufacturing in-house from glass materials through to finished products.
SUMITA’s optical fiber products have been widely used in the field of medical, communication, measurement, lighting, and optoelectronics.

Now SUMITA produces more than 200 kinds of products,
which range from molding aspheric lenses for cameras, microscopes and endoscopes, optical fibers, to various glass filters and advanced glass materials.

SUMITA has been placed an emphasis on thinking out of the box and a challenging spirit.
Rather than excessive commercialization and corporate profits, we, SUMITA,
have been putting efforts on creating high-value-added products for customers and inspire the world in new ways.

Shining like a glass, bright like a light, we, SUMITA,
keep seeking the infinite possibilities of technological development with our free and flexible mind.

Address 4-7-25 Harigaya, Urawa-ku, Saitama-City, Saitama 330-8565 Japan

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Aspherical lens

SUMITA OPTICAL GLASS Inc.

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