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For the later adjustment of the camera
stand on the dental light a cross from adhesive tape is attached on the
camera plate of the stand, so that all free ends of the tape exceed at
least one centimeter over the stand baseplate.
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With a cement spatula a thin
layer of Hylosilâ silicone
glue is painted on the lower surface of the stand baseplate. For dental
lights with a relief on their front side (e.g. Siemens M1, Sirona E,
Pelton Crane etc.) the silicone layer must be somewhat thicker. The stand
fed with silicone adhesive is put on the center of the light front and
pressed on slightly, until some silicone outpours the baseplate at the
edges.
Recommendation
For the temporary attachment of the miniature stand a polyether impression
material like Impregumâ
can be used. Impregumâ
may also be used to keep th
eminiature in place for months and years ! |
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It is important to fix the stand in the correct position,
so that the
fixing screws are well attainable afterwards. For right handed persons the
screws should show to the right and upward (with the view of the light
front side)
Now the ends of the adhesive tapes are fixed at the
light and the light screen is turned upward. |
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The curing of the silicone takes 2-12
hours depending upon the thickness of the silicone joint (the thicker the
joint, the longer the hardening by precipitation phase
will take). The hardening can be accelerated however
by warmth. For this reason the
light should remain switched on for 2-3 hours. |
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| Laying of the camera cable |
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Important:
The camera cable is highly flexible, but may be broken when squeezed or
laid in to close bends. For transportation or storage the camera
cable should be laid in loops not less than 20 cm in diameter.
The warranty will be void for any camera cable showing sharp bends or
kinks. |
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Plea se
notice:
For laying the camera cable into the inner tube of the dental light one
has to drill a small hole into the front side of the dental light tube (often
plastic parts). This bore hole will lead your dental light to lose its
registration and warranty (medical products law). We leave it up to you to
drill this hole by yourself or have a technician from your dental supplier
drill this hole and lay the cable for you.
A more comfortable, but
less attractive way to lay the camera cable is through the use of cable
clamps, cable canals or adhesive tape stuck to the outside of the dental
light tubes.
The camera cable with its
diameter of only 5,8 mm
can be laid inside the tubing linkage of most dental
lights (max. diameter of the
cable plug: 12 mm).
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Important:
In order to ensure the full mobility of the light head, a cable reserve
must be present. The best way to test
the length of the necessary cable
reserve is to attach
the camera to the stand, connect the cable plug to
the camera socket and hold the camera cable to that point, where the cable
is to be laid into the light tube. Now move the light head to any possible
direction. The cable should not be strained in any position or be in
contact to hot surfaces of the dental light.
Note: The camera
cable may be broken when squeezed or be laid in to close bends. |
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| Connection of the monitor |
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The plug of the camera cable is
connected with the camera socket at the connection box.
Simply latch the plug (possible in one position only!) in the socket. To
loosen the plug just pull out the high-grade steel ring. Never pull the
black rubber
part of the plug !
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From the connection box the
video cable leads to the video-in and the audio cable leads to the
audio-in of the monitor.
These two cables must possess so-called
RCA plugs.
Professional monitors have so-called BNC sockets. In this case you need a
BNC-RCA adapter |
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Most TV devices have so-called
Scart connectors. In order to attach the camera to ordinary TV equipment,
you need a Scart adapter, which has RCA sockets. LCD monitors, which are
suitable for both video and/or TV often possess Scart and RCA sockets. |
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Another word to the
monitor:
Unfortunately the image quality of most LCD monitors cannot yet be
compared to the image quality of a professional broadcast monitor (CRT =
cathode ray tube or picture tube). That is not at resolution lacking,
but
because of the weak contrast ratio of LCD monitors. Nevertheless, if you
want to use a LCD (= TFT monitor) or plasma monitor in your office, the monitor should
have a contrast ratio of at least 500: 1.
Right now, there are good
LCD monitors with a contrast ratio of 1.000:1 or even more on the market
and the technology of flat monitors is advancing very fast. There are
already plasma monitors with a contrast ratio of 10.000:1 and more.
If you do not want to save the shots of
the TirdEye dental camera as still images on a computer only, but record video
sequences to DVD or video tape, we recommend a professional tube monitor
or normal TV equipment ! It still is the better choice regarding image
quailty ! |
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| Attachment of the camera |
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Once the monitor is
connected to the connector box the camera is attached on the dental light.
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Before sliding the camera
onto the miniature camera stand you should plug the cable plug into the socket
of the camera housing. Since this will be possible in
one position only, you should turn camera and the
cable plug somewhat in
opposite directions, until the plug engages. |
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Now the camera with the
groove on its rear side can be slided onto the disc
of the miniature stand.
Now you can plug the power supply plug of the
connector box into its socket in the same way
and switch the monitor on. |
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| Adjustment of the camera |
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Now the optical axis of the camera lens must
be
aligned to the central ray of the dental light.
For this reason stick one of the test
mouth labels on the neck restraint of your dental chair. Turn the dental
light on and direct the light beam of the dental light towards the test
mouth.
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Unscrew both fixing screws of the
miniature camera
stand with the
enclosed allen screw driver. Guide the
camera with your left hand till the test mouth appears
in the center of the light beam on the monitor. Now tighten the fixing screws of the miniature stand with
the allen screw driver in your right* hand
(*this explanation is for right handed dentists
only)
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The test mouth should be
visible something above the center of the light bundle. Thus dazzling of
your patient can be prevented later. Shake something at the camera as a
check. The image always should remain fixed on the centre of the light
beam of the dental light ! |
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| Finished ! |
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By the way: The
camera is appropriate for continuous operation. With a power consumption
of less than
one Watt you need not constantly separate the camera from the
power supply. It is sufficient switching off
the connector box in the
evening after the work. |
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| You can download
this installation manual as Word-file
or as PDF-file |
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