5. EYE GLASSES
• THESE OPTICAL APPLIANCE COMPRISING A
LENSES AND A FRAME HAVING NO SIDE.
• EYE GLASSES WERE USED IN THE PART AND
HAVE BEEN REPLACE IN SPECTACLE.
5
6. FRAME
• THE PORTION OF SPECTACLE WHICH HOLDS THE
LENSES CONTAINING THE OPHTHALMIC
PRESCRIPTION IN THEIR PROPER POSITION IN
FRONT OF THE EYES.
• THERE ARE TWO PART IN FRAME:
• (1)FRAME FRONT
• (2)TEMPLES
6
25. SADDLE BRIDGE
• The saddle bridge is shaped like a saddle in a
smooth curve and follows the bridge of the
nose.
• This spreads the weight of the frame evenly
over the sides and crest of the nose.
25
27. MODIFIED SADDLE BRIDGE
• In the modified saddle, the bridge area looks
much the same as the saddle bridge does
when viewed from the Front.
• The difference is that there are nose pads that
are part of the back of the bridge.
• These pads help to carry some of the weight
of the frame.
27
29. KEYHOLE BRIDGE
• The keyhole bridge is shaped like an old-
fashioned keyhole.
• At the top, the bridge flares out slightly.
• The bridge rests on the sides of the nose, but
not on the rest.
29
32. PAD BRIDGE
• The bridge commonly used in metal frames is
the pad bridge.
• In the pad bridge, nose pads are attached to
the frame by metal pad arms.
• In this case, the pads alone support the
weight of the glasses.
32
36. METAL SADDLE BRIDGE
• Metal and rimless frames were, and
sometimes still are, constructed with a metal
saddle bridge and enjoyed widespread use for
a period of history.
• It may yet appear exactly as before or
decoratively in conjunction with nose pads.
36
38. HINGES
• The hinges hold the temples to the front, and
consist of an odd number of interfitting
barrels, the total number being three, five, or
seven.
• Hinges may vary in construction , but for
simplicity are usually classified by the total
number of barrels they have when assembled,
such as a three-barrel hinge.
38
53. TURN BACK
• The traditional metal end piece has a
construction similar to the turn-back end
piece of the plastic frame.
• There are now a wide variety of metal
endpiece designs
53
55. WRAP
• End pieces are also noticeable by their
absence.
• Instead of an end piece, some frame fronts
and temples are made as one continuous
piece.
55
57. NOSE PADS
Mostly frame have nose pads ,
which are plastic piece that rest on
the nose to support the frame.
It also directly attached to the
frame.
57
62. GUARD ARM
• Some frames have nose pads, which are
plastic pieces that rest on the nose to support
the frame.
• These may be directly attached to the frame
or to connecting metal pieces known as guard
arms or pad arms.
62
66. The portion of the temple that attached
to the frame front is known as the butt
portion or butt end.
The place on a temple where is first
bends down to go over the ears is called
Bend.
The portion in temple between the butt
portion and bend portion is called shank
or shaft. 66
67. The portion beyond the bend and
behind the ear is known as the ear
piece or curl.
The spring system is also pressent
in the butt portion.
Steel wire pressent in temple.
67
69. SKULL TEMPLE
• Skull temples bend down behind the ear and
follow the contour of the skull, resting evenly
against it.
• The bent-down portion is narrower at the top
of the ear and widens toward the end.
69
71. RIDING BOW TEMPLE
• Riding bow temples curve around the ear,
following the crotch of the ear where the ear
and the head
• meet and extend to the level of the earlobe.
They are sometimes used in children’s and
safety frames.
71
73. LIBRARY TEMPLE
• Library temples usually begin with an average
width at the butt and increase in width
posteriorly.
• They are practically straight and hold the
glasses on primarily by pressure against the
side of the head.
• They are also known as straight-back temples.
73
75. CONVERTIBLE TEMPLE
• Convertible temples were originally designed
so they could be bent down to take on the
form of skull temples, and “converted” from
the straight-back to the skull design.
• Because this temple is versatile and can be
made to fit people with a variety of temple
length requirements, it is commonly used.
75
76. • However, it now comes already bent down for
a certain temple Fit.
• If the bend is in the wrong location, the
temple may be easily straightened out and
then re-bent to fit the wearer.
76
78. COMFORT CABLE
• Comfort cable temples are shaped the same as
riding bow temples, but are of metal
construction with the curl, or behind the ear
portion, constructed from a flexible coiled
cable.
78
