41
© Haag-Streit AG, CH-3098 Koeniz, Switzerland
1500.7200631.04040
Diagramm
Bestrahlungsstärke bei Positionen
1, 1/2 und 1/4
Diagramme
Puissance du rayonnement en positions
1, 1/2 et 1/4
Diagram
Irradiance at positions 1, 1/2 and 1/4
Wellenlänge / Longueur d'onde / Wave length [nm]
Spektrale Bestrahlungsstärke / Puissance spectrale / Spec-
tral irradiance
[mW/(cm
2
nm)]
Appendix C
Technical specifications
Slit illumination
Slit image width
0 - 14 mm continuous
Slit image length
1 - 14 mm continuous
Illumination field diameter 14 mm
Slit image radial range 0° - 90°
Radial movement of the slit illumination relative to the
microscope axis
Horizontal ± 90°
Filter
Blue, grey (10 %) and red.
The UV filter and the heat absorption
filter are permanently mounted.
Light source
Halogen lamp bulb 12 V / 2.5 A
Illumination intensity 0 V / 0 Lux
at position 0
7 V / 75 000 Lux
at position 1/4
9 V / 150 000 Lux
at position 1/2
11.5 V / 300 000 Lux at position 1
Irradiance depending on light wave length
see
diagram
at right hand side
Irradiance at max. intensity (11.5 V lamp) and
max. aperture*)
0.01 mW / cm
2
(305 nm - 400 nm)
90 mW / cm
2
(380 nm - 700 nm)
5 mW / cm
2
(700 nm - 1100 nm)
Spectrally-weighted photochemical aphakic output source
radiance L
A
at maximum intensity (11.5 V lamp) and maximum
aperture: 270 mW / (cm
2
sr).*)
Spectrally-weighted photochemical phakic output source ra-
diance L
B
at maximum intensity (11.5 V lamp) and maximum
aperture: 230 mW / (cm
2
sr).*)
Spectrally-weighted photochemical radiance L
A
and L
B
give
a measure of the potential hazard that exists for a beam of
light to cause photochemical damage to the retina. L
A
gives
the measure either for eyes in which the crystalline lens has
been removed (aphakes) and has not been replaced by a
UV-blocking lens or for eyes of very young children. L
B
gives
the measure for eyes in which a crystalline lens is in place.
Values of L
A
and L
B
over 80 mW / (cm
2
sr) are considered
high for beams which completely fill a dilated pupil. *)
*)
According to ISO 10939
Position
11.5 V
1
9 V
1/2
7 V
1/4
