Frame materials

1. FRAME
MATERIALS
OPTOM FASLU MUHAMMED

2. •Non allergic
•Resistant to corrosion
•Nonflammable
•Inexpensive
•Durable
•Adjustable
An ideal lens materials qualities .

3. Cellulose nitrate widely used.
It accept a good polish, but is
flammable in high temperature.
PLASTIC FRAME MATERIALS

4. CELLULOSE NITRATE
It is hard
Retained its shape even in hot climates.
Easy to workup on
Disadvantage is that it is inflammable.

5. CELLULOSE ACETATE
Less inflammable .
Stability is low.
Allergic reactions

6. CELLULOSE PROPIONATE
It is used in combination frames.

7. Nickel silver
Also known as Germen silver.
Resistant to corrosion.

8. Optyl
Epoxy resin is used for spectacle
frames and is known under the trade
name of Optyl
Optyl 30% lighter than cellulose acetate.
It is highly stable.
It is appropriate for those who might be
allergic to other type of frame materials

9. Nylon & nylon based materials.
1.Nylon-
High flexibility .
Previously used extensively for spots
eye Wear.

10. 2.Polyamide/co polyamide
It is a nylon based material.
 It is strong.
It can be made thinner only 72% weight of
cellulose acetate.

11. Cont…..
It is resistant to chemicals &solvent.
It is opaque & translucent .
Hypoallergenic.

12. Grilamid
It is a nylon based material.
Used in sports & performance type of eye
wear.
Large variety of color possibilities.

13. Carbon fiber
Used to create a thin strong frame.
Made from carbon combined with nylon.
Light weight .
Carbon fiber is 60% the weight of
cellulose acetate.
 Frame color will be opaque & are limited.

14. DISADVATAGE
Problems in breakage in cold weather

15. Polycarbonate
 It primarily for sport or safety purposes.
 Very impact resistant.
 The type of sports glasses that are held
in place with elastic straps

16. Polycarbonate sports frames

17. Safety frames with plano lenses can be
molded as one unit.
It may be used either alone or worn over
conventional glasses

19. Kevlar
Kevlar is a material that is also mixed with
nylon.
It, too is a strong, lightweight ophthalmic
frame material.
Stable over a large temperature range,
but is difficult to adjust.
Pliable with heat, it will not shrink or
stretch.

20. Rubber
Sports eyewear and sunglass frames
may be made from a combination of nylon
and rubber.
As would be expected, these frames are
flexible and will return to their original
shape, but are not adjustable

21. Metal Frame Materials

22. Anodized aluminium
Lightweight.
Inexpensive.
Resistant to corrosion.

23. Stainless steel
Highly resistant to corrosion.
Stable.
Easy to manufacture.

24. Gold
Very attractive .
Resistant to corrosion.
Non allergic.

25. Nickel-Based Materials
It is strong and malleable.
Number of people who may have an
allergic reaction to nickel.

26. Pure Nickel.
Nickel Silvers.
Monel Metal.

27. Aluminum
Aluminum is both strong and extremely
lightweight.
 Aluminum does not solder or weld well,
It holds the adjustment well, but has no
flexibility.
If it bends, it stays that way.

28. Stainless Steel
o It is made mainly from iron and chrome
and is highly resistant to corrosion.
o Stainless steel is strong.
o It made very thin has an element of
springiness and flexibility
o Stainless steel is one of the more non
allergenic materials

29. Titanium
 Titanium is a versatile and abundant
material that has become increasingly
common for use in ophthalmic frames.

30. Advantages
Light in weight .,titanium is 48% lighter.
Titanium is very strong, which allows
titanium frames exceedingly thin..
Titanium is very corrosion resistant.
Excellent choice for people in hot climates
Titanium is hypoallergenic.

31. Disadvantages of titanium
Titanium is hard to solder or weld.
Because the manufacturing process is
more demanding,
Titanium is more expensive than
conventional materials.

32.  Certified 100% Titanium—All major
components of the frame are at least
90% titanium by weight and, no problems
with wearer allergy, the frame must not
contain any nickel
 Certified Beta Titanium—All major
components of the frame are at least
70% titanium by weight, and there must
be no nickel content

34. Bronze
Bronze is a metal alloy traditionally made
from copper and tin.
Is corrosion- resistant,
Lightweight , and takes color well.

35. Magnesium
Magnesium is even lighter in weight than
titanium.
Exceptionally durable.

36. Other Materials and Alloys
There are other materials that are also
suitable for frames, including cobalt,
palladium, ruthenium, and beryllium.