Direct-machining of hardened steel is our company's
We can produce mirror surface finish better than
8 nm Ra on steel with hardness above HRC50. Thousands of pieces
of hardened steel optical mold inserts have been manufactured with
this technology. So far, we are the only commercial company having
such capabilities in the world.
Compensation of the shrinkage error of plastic lenses
- for injection molding by modifying the profile of the mold inserts.
This improves the form accuracy of the plastic lens significantly
(typically from 25 µm to 1.5µm)
Diamond tool resharpening and special
tool fabrication - This will reduce the running cost and
shorten the lead time required to purchase the special tooling.
inserts directly cut on hardened steel
The advantages of steel inserts (direct-cut) over nickel-plated
Shorter fabrication turn-around time (one
day versus 2 to 4 weeks)
Better quality surface (high scratch resistance,
no peeling, no chipping/cracking on sharp edges, less prone to
Longer mold life (at least 3 times over nickel-plated
Higher molding temperature (over 300°C)
Delta Optics Technologies is a company spun off from Singapore Institute of Manufacturing Technology
(SIMTech) to better support the optical & molding industries with states-of-the-art technologies to
produce mirror surface finish better than 8 nm Ra on steel with hardness above HRC50. We are the only
commercial company having such capabilities in the world where thousands of pieces of hardened steel
optical mold inserts have been manufactured with this technology.