Riester ri-former Instructions Manual page 64

5. Focussing device (only with L3)
Fast fine adjustment of the examination area to be observed is
achieved from various distances by turning the focussing wheel.
ri-scope
1. Intended use
The ri-scope
described in these operating instructions (also called skiascopes)
have been manufactured for examining the refraction of the eye
(refractive error).
2. Function
Rotation and focusing of the slit and/or spot image may now be
effected by the knurled screw.
3. Rotation
The slit or spot image may be rotated by 360° by the control. Each
angle may be directly read from the scale on the retinoscope.
4. Fixation cards
Fixation cards are suspended and fixed on the object side of the
retinoscope into the bracket for the dynamic skiascope.
5. Slit/Spot design
The slit retinoscope may be converted to a spot retinoscope by
exchanging the slit lamp against a spot lamp.
ri-derma dermatoscope
1. Intended use
The ri-derma dermatoscope described in these operating
instructions has been produced for early recognition of melanotic
skin changes (malign melanoma).
2. Focusing
Focus the magnifying glass by rotating the eyepiece ring.
3. Skin adapters
Two skin adapters are supplied:
1) Including a scale of 0 - 10 mm for measuring melanotic skin
changes, such as malign melanoma. = article number 10969
2) without scale = article number 10968
Both skin attachments can be removed easily and exchanged.
ri-scope
1. Intended use
The bent arm illuminator described in these instructions for use
was manufactured for illuminating the mouth and pharynx.
ri-scope
1. Intended use
The nasal speculum described in these instructions for use was
manufactured for illumination and examination of the inside of
the nose.
2. Function
Two types of operation are possible:
a) Quick retraction
Press down the adjusting screw on the instrument head with
64
®
retinoscope (skiascope)
® retinoscope Slit and ri-scope
®
F.O. bent arm illuminator
®
F.O. nasal speculum
®
retinoscope Spot