Camera And Ir Illumination - Interacoustics EyeSeeCam vHIT Manual De Instrucciones

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EyeSeeCam vHIT Instructions for Use - EN
The vHIT goggle suppports the USB camera that is used to record the eye images. This constitutes
the major component of your USB vHIT system.
The USB camera uses infrared light (IR), which is not visible to the naked eye. The IR illumination
enables sessions to be performed in complete darkness. Although it seems to be dark, the eye images
will be displayed as clear and visible images due to the IR-illumination.
The USB vHIT goggle functions as free field of view only.
Before using the USB vHIT goggle please consider the following:
The goggle and camera contain sensitive electronic and optical devices. Do not expose the
goggle or cameras to mechanical shock
Do not expose the goggle to moisture (IPX 0 according to IEC 529)
USB vHIT goggle is not to be used around explosive gase.
In addition to the camera, there is a calibration laser in the center providing the visual fixation targets
for calibration. The laser projects a luminous dot pattern in front of the head, for example, onto the
wall, if the tested subject is sitting in front of the wall, or onto the ceiling, if the tested subject is lying.
Just like the camera, this calibration laser can also be removed together with the camera. The
calibration laser is connected to the camera by means of a flexible wire.
3.5.1

Camera and IR illumination

Light Emitting Diodes (LEDs) are positioned at the side of the camera objective lens. The lateral LEDs
emit infrared light (IR), which serves as Spherical Camera Joint:
The spherical joint allows the camera to be moved from the mask and plugged into the spherical
socket of the other side. This allows for examining either the left or the right eye, depending on
which eye is better suited for examination. This feature is particularly useful in patients with either
a glass eye or with a ptosis.
Figure 3-4 vHIT goggle and ball and socket joint for camera. Calibration laser is placed on the bridge of the goggle..
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