Zeiss humphrey HFA II-i series, Руководство по обслуживанию на месте

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Humphrey Field Analyzer II - i Appendix A
Confidential and Proprietary
52235C1105 A - 5
Field Service Guide
A.2.5 Fake Eye
A fixture with an imitation eye, gaze tracking alignment box, focus target, and trial lens
holder Z-positioning stop (see Figure A-3). It is used in conjunction with the Tool Stand to
perform the following:
P
verify and set camera window position and size in relation to trial lens holder;
P
verify and set gaze tracking;
P
adjust camera focus;
P
set the Z-position of the trial lens holder.
A.2.6 Tool Stand Assembly
Refer to Figure A-3.
Tool Stand and Chinrest Mount — A stand that attaches to the HFA II - i by means of the
chinrest mount. The Tool Stand serves as a mounting base for a variety of calibration and
adjustment tools.
Trial Lens Holder Height Adaptor — A block that attaches to the bottom of the Tool Stand
to set the height of the Tool Stand when performing the Trial Lens Holder adjustment. The
block is removed for all other adjustments requiring the Tool Stand.
Cold Mirror Alignment Adaptors — These two adaptors attach to the Tool Stand and are
used in conjunction with a pen light to set the position of the Cold Mirrors.
Tool Stand Alignment Adaptor — A block with two extended pins that contact the
forehead rest to set the correct Z (front-back) alignment of the Tool Stand when mounted on
the chinrest.
Forehead Rest Hook — A hook that allows the Tool Stand to be held to the forehead rest.
A.2.7 Mirror Tool
The Mirror Tool is a small mirror that attaches to the center of the Tool Stand. The mirror is
used only when setting the correction values for the blue stimulus.
A.2.8 CRT Overlay
A clear plastic template that is placed over the touch screen and is used as an aid to
verify/adjust CRT symmetry.
A.2.9 Spot Positioning Cross Fixture
This is a horizontal and vertical target that mounts to the inside surface of the bowl. It is used
to check the positional tolerances of the projected light spot within the bowl.