179
TERMINOLOGY
Term
Description
Page
Tetrafoil
A type of high order aberration.
Shows aberration of the 4th order of Zernike polynominal
equation (-4 and 4 terms).
Third-order display
In KR-1W, 3rd order terms of Zernike polynominal equa-
tion are displayed.
TopoMap overlay
Overlay of the Corneal Axila map and Corneal Instanta-
neous map can be overlayed to the corneal Mire image
of the Corneal Aberration map.
Total HOA (Total High
Order Aberration)
Analyzed total high order aberration.
Trefoil
A type of high order aberration.
Shows 3rd order terms of Zernike polynominal equation
(-3 and 3 terms)
Vertex distance
Means the right-left vertex distance.
Waiting Position After
Measurement
KR-1W can select the waiting position of measuring head
after finishing auto mode measurement.
Wave-front/PSF Image
PSF is short for Point Spread Function. In the KR-1W, it
is possible to see how the point light source is focused,
after being completely corrected and affected by aberra-
tion.
Zernike Analysis
Diameter
Area for analysis of the obtained image.
In KR-1W, it is both possible to use the detected pupil
diameter and to specify an analysis diameter.
On analysis result screen, analysis is always done in
4mm and 6mm areas.
Zernike Vector Map
(analysis result display
map)
Map to display the ocular aberration and Landolt's ring
simulation obtained from Hartmann image by major com-
ponents of 3rd/4th order of Zernike polynominal equation.
Hartmann image, ocular total aberration and ocular high
order aberration can also be displayed.
Zoom Down button
Used to reduce the enlarged map screen. The same
effect can be attained by dragging the map from top
downward.
Summary of Contents for KR-1W
Page 1: ...INSTRUCTION MANUAL WAVE FRONT ANALYZER KR 1W ...
Page 2: ......
Page 186: ......
Page 188: ...KR 1W WAVE FRONT ANALYZER 41835 97992 Printed in Japan 2010 02 100LW2 ...