5000

6000

7000

8000

9000

50nm 100nm 200nmCoating thickness

Life span test for insert with

ta-C coating

Upper side

Lower side

Nu

mb

er

of

sh

ot

Typical

5000

6000

7000

8000

9000

50nm 100nm 200nmCoating thickness

Upper side

Lower side

Nu

mb

er

of

sh

ot

5000

6000

7000

8000

9000

50nm 100nm 200nmCoating thickness

Upper side

Lower side

Nu

mb

er

of

sh

ot

example:

Insert

Sh

ot lif

e

500

1500

2500

3500

4500

5500

6500

DLC Ta-C

Insert

Sh

ot lif

e

1500

2500

4500

5500

6500

DLC Ta-C

Advantages of ta-C on Glass Lens Mold

• Best anti-corrosion property .

• Excellent Anti-Sticking properties, easy to release.

• Film thinner but harder,

• Excellent adhesion.

• Low wear rate and friction coefficient.

• No hydrogen carbon film, can withstand high working

temperature (up to 800 degree C) under low-oxygen(< 10ppm)

atmosphere.

• Easy to decoat as it is pure carbon coating without

metal seed layer, then recoat ta-C film, enable to recycle

the mold.

• To maintain accuracy (< 0.15um) on aspherical surface

after long run production.

conventional DLC

Expertise in Glass