Glossary - Labomed PRIMA ENT User Manual

23. GLOSSARY

Ametropia Compensation
Working Distance
Color Temperature
Light field diameter
Field of View Diameter
Green Filter
Illumination Intensity
LED
Eyepiece
Convergent Beam Path
White Balance
DSLR Camera
CCD Camera
CMOS Camera
DBS
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Compensation of short-or-far-sightedness. This can be done for each
eye using the two individual eyepieces (range: +5 to -5 diopters).
Distance front lens to object level (250mm).
Refers to the color characteristic of a light source. Using color
temperature, one can set the color of a light source to warm or cold
light Relative to the color of natural light. The unit of measure for color
temperature is Kelvin (K).
The size of the field, which is illuminated at a distance of 250mm.
The visible area of an object that can be seen through the microscope.
The greater the magnification level, the smaller the field of view and vice
versa.
A color filter that darkens red and blue light and brightens green
light. Thus, the contrast of the image is increased, blood vessels are
shown more clearly.
Specifies the luminous flux from a light source onto a certain area. The
unit of measure for illumination intensity is Lux (Lx).
Light Emitting Diode. Electronic semiconductor device that emits light
when an electrical current passes through it.
The optical portion facing towards the eyes, with which the enlarged
image produced by the microscope can be viewed.
The two light beams for the right and left eye run together at a point that
lies at a distance of 250mm in front of the front lens. This distance is in
accordance with the working distance. This way, the eye does not has to
focus on this point in its own, as it is the case with a parallel beam path.
White balance is used to calibrate the camera to the color temperature
of the light at the location.
(Digital Single Lens Reflex) camera with a digital imaging sensor.
(Charged Coupled Device) camera with a technology to store a charge
and move this charge out of the photo sensor in an organized way.
(Complementary Metal Oxide Semiconductor) camera in which images
sensor is a silicon chip that captures and reads light.
(Double Beam Splitter) splits light beam into two directions (one to eye
and one to side port) for simultaneous user viewing and photography,
videography, or co-observation. Ratio of light distribution is 70% for eyes
and 30% to side ports for photography, videography and co-observation.
Prima ENT/DNT
Prima ENT/DNT
Issue 1.5
Printed on Feb.26,2019