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A 355mm lens
being fine ground before polishing. HJOL can manufacture
lenses up to 510mm in diameter. |
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Generating a
spherical lens
using a LOH 120 machine. |
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A 6-spindle
spherical polishing machine with a variety of elements
being worked on. Up to a 10/5 surface quality can be
achieved. |
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A cylindrical
lens block being fine ground. |
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A large block
of cylindrical lenses being polished. HJOL can manufacture
cylindrical optics from 3mm to almost a meter long. |
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A spherical
lens being edged on a CNC mill. HJOL can hold centering
tolerances to better than 5um. |
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A small sample
of our products. The large dome in the background stands
approximately 305mm high. |
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A cylindrical
lens being edged on a CNC milling machine. Centration to
5um can be made in this manner. |
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Our coating
machine being prepared for a run. HJOL does a variety of
coatings. |
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In-process
inspection using a Zygo PTI interferometer. |
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A large concave
block of cylinders being polished. We can polish to a 10/5
surface quality and surface roughness better than 4
angstrom RMS. |
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Measuring a
long radius lens using
a Tri-optics spherometer. |
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Multiple
spherical elements on the same tool being polished. |
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A prism array.
We manufacture prisms of many shapes and sizes. |
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Inspecting the
centration of a spherical lens using a LOH M1 machine. The
centration can be inspected to within a few seconds of
arc. |
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Polishing
prisms and windows on a 1,220mm diameter CP. We can hold
flatness to 1/20th of a wave or better and angles to 2
seconds. |
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High-speed
polishing using a Schneider 120 polishing machine. Higher
polishing speeds cut out processing time, allowing for
quicker deliveries. |
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A spherical
lens having the irregularity checked with a Zygo GPI
interferometer. Surfaces up to a 1/20th wave can be
achieved. |
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