Background illumination Introduction The BI 900 slit lamp comprises an illumination unit and a binocular microscope. The entire device can be moved in front of the eyes using the instrument base. The il- lumination offers a range of setting possibilities for making the practically invisible areas of the eye visible.
Each eyepiece should be set individually by turning the knurled ocular refraction 5. Connect the diffuser upstream ring with dioptre scale until the projected slit can be seen in focus. The setting is 6. Position the HAAG-STREIT greycard in front of the slit lamp and use it for fo- performed from the (+) to the (-) side at low magnification. •...
B. Statutory requirements 8.5 Dust cover • The BI 900 slit lamp was developed and designed taking the EN 60601-1, EN ISO We recommend protecting the device with a dust cover (87) 10939 and EN ISO 15004-2 standards into account.
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