topic 1 spectacle frames Flashcards
Name the parts that make up a spectacle frame
- Frame front
- Temple
- end piece
- bridge
- nose pads
Identify 5 different frame types
Full Frame (Can be Plastic or Metal material)
Combination (metal rims with plastic hoods)
Half-eyes
Rimlon or half frame or half rim or semi rimless or Supra
Rimless
what are the 3 types of lens edge?
- Flat edge
- Flat edge with groove
- Edge with bevel
Identify the lens edge finishing required by each frame type
Full frame plastic–>lens edge with bevel
Full frame metal–>lens edge with bevel
Combination frame–>lens edge with bevel
Half-eyes–>lens edge with bevel
Rimlon–>flat lens edge with groove
Rimless–>flat lens edge
what is purpose of spring hinge?
Its for wearer who likes to remove their spec with 1 hand.
what are the 3 Variations of Endpiece Design
- Mitre 45
- butt 90
- turn back
what are the 4 Variations of Bridge
- saddle plastic
- saddle metal
- keyhole
- adjustable
what are the 2 nose pad materials? state their properties
silicone -soft and flexible -non irritant to skin durable and stays transparent -slip resistant
PVC
- hard, lack elasticity
- irritant to skin and can cause allergy
- can become yellow with time
- easy to slide from nose
what are the 3 ways to install nose pads?
- screw in
- press in
- slip in
what are the 5 variations of temple design?
- skull
- library
- convertible
- riding bow
- comfort cable/hook temple