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Concrete example of the tilting function
The procedures of processing EX lenses with the tilting function are described.
To use the tilting function, it is necessary to set the parameter “TILT Function” to “Exec”. See
“5.2 Parameter Settings” (p. 5-2).
EX lenses have the distance part on their upper half and the near part on their lower half as in the
figure, and the difference between the top edge width and the bottom one is wide. In addition,
since there is a difference in level between the distance part and near part, the appearance of the
mounted lenses is not nice if the lens is processed in the beveling mode.
In processing an EX lens with the tilting function, the initial bevel curve value will not be the
rear base curve (REAR); The bevel is calculated from the spherical curve which is the same with
the auto-curve value. Then the EX lens will automatically be processed in the guided processing
mode.
The figure by the dotted line illustrates the side view of the EX lens which is
processed with the tilting function. As illustrated, the bevel on the thick upper
part of the lens is moved toward the front surface of the lens in the range that the
bevel barely remains at the edge’s thinnest point.
The following describes the procedures for processing an EX lens with a nice
appearance by adjusting the bevel position on the upper part to the front surface
with the tilting function.
Setting the tilt base position
Align the sectional view position line to the
position adjacent to the point straight down
from the frame center as shown on the right.
Then move the bevel position backward as
much as possible. This is for tilting the bevel
on the upper edge as much as possible. If a
lens has an enough width, it is not necessary to
move the bevel position, but leave the bevel at
around the middle of the edge. The bevel
position will be the tilt base position. Align
the cursor to
TILT
and press
.
Figure of EX lens
.
.
.
.
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Set the tilt base position near the point
straight down from the frame center.
Содержание LE-9000DX Express
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