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Appendix
265
Working Principle
The retinal tomogram is obtained by using the optical interference. Near-infrared light,
which is emitted by the super luminescence diode (SLD), is separated by the beam
splitter. One separated light is guided to the reference mirror and is reflected by it. Then,
the light returns to the beam splitter. Another light is guided into the eye and is reflected
by the retinal tissues. Then, the light returns to the beam splitter. When the two reflected
lights join and overlap, a low interference wave with different amplitude is generated.
This wave is separated by diffraction grating and then it is converted into the electric
signal by the detector. A calculation is performed that enables this signal to photograph
and record the retinal tomogram.
Detector
SLD
Reference mirror
Beam
splitter
Objective lens Patient’s eye
Diffraction grating
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Содержание OCT-A1
Страница 9: ...1 Introduction BT8 1794 E01_RX OCT A1_HS100 V4 6_CVS indb 9 10 26 2020 10 49 20 AM ...
Страница 21: ...2 Safety BT8 1794 E01_RX OCT A1_HS100 V4 6_CVS indb 21 10 26 2020 10 49 21 AM ...
Страница 37: ...3 Part Names BT8 1794 E01_RX OCT A1_HS100 V4 6_CVS indb 37 10 26 2020 10 49 23 AM ...
Страница 46: ...46 3 Part Names BT8 1794 E01_RX OCT A1_HS100 V4 6_CVS indb 46 10 26 2020 10 49 27 AM ...
Страница 251: ...10 Troubleshooting BT8 1794 E01_RX OCT A1_HS100 V4 6_CVS indb 251 10 26 2020 10 50 11 AM ...
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Страница 255: ...Appendix BT8 1794 E01_RX OCT A1_HS100 V4 6_CVS indb 255 10 26 2020 10 50 11 AM ...
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