Development of Planar Optics for an Optical Tracking Sensor
An optical tracking sensor for large-capacity flexible disk drive (FDD) is demonstrated. The passive optics is compact and lightweight (5.4 mm length×3.6 mm width×1.2 mm height in size and 18 mg weight). It comprises all passive optical elements necessary for optical tracking, e.g. , a focusing lens...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 1998-10, Vol.37 (10R), p.5593 |
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| container_issue | 10R |
| container_start_page | 5593 |
| container_title | Japanese Journal of Applied Physics |
| container_volume | 37 |
| creator | Kawano, Hiroyuki Sasagawa, Tomohiro |
| description | An optical tracking sensor for large-capacity flexible disk drive (FDD) is demonstrated. The
passive optics is compact and lightweight (5.4 mm length×3.6 mm width×1.2 mm height in size
and 18 mg weight). It comprises all passive optical elements necessary for optical tracking,
e.g.
, a
focusing lens, a three-beam grating, an aperture and a beam splitter grating. Three beams were
focused to a predetermined spot size of 13 µm at designed intervals of 110 µm on a disk surface
and the reflected beams were successfully guided to photodiodes. This confirms that the application
of the planar optical technique is very useful for realizing a compact and light optical sensor. |
| doi_str_mv | 10.1143/JJAP.37.5593 |
| format | Article |
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passive optics is compact and lightweight (5.4 mm length×3.6 mm width×1.2 mm height in size
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e.g.
, a
focusing lens, a three-beam grating, an aperture and a beam splitter grating. Three beams were
focused to a predetermined spot size of 13 µm at designed intervals of 110 µm on a disk surface
and the reflected beams were successfully guided to photodiodes. This confirms that the application
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passive optics is compact and lightweight (5.4 mm length×3.6 mm width×1.2 mm height in size
and 18 mg weight). It comprises all passive optical elements necessary for optical tracking,
e.g.
, a
focusing lens, a three-beam grating, an aperture and a beam splitter grating. Three beams were
focused to a predetermined spot size of 13 µm at designed intervals of 110 µm on a disk surface
and the reflected beams were successfully guided to photodiodes. This confirms that the application
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passive optics is compact and lightweight (5.4 mm length×3.6 mm width×1.2 mm height in size
and 18 mg weight). It comprises all passive optical elements necessary for optical tracking,
e.g.
, a
focusing lens, a three-beam grating, an aperture and a beam splitter grating. Three beams were
focused to a predetermined spot size of 13 µm at designed intervals of 110 µm on a disk surface
and the reflected beams were successfully guided to photodiodes. This confirms that the application
of the planar optical technique is very useful for realizing a compact and light optical sensor.</abstract><doi>10.1143/JJAP.37.5593</doi></addata></record> |
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| ispartof | Japanese Journal of Applied Physics, 1998-10, Vol.37 (10R), p.5593 |
| issn | 0021-4922 1347-4065 |
| language | eng |
| recordid | cdi_crossref_primary_10_1143_JJAP_37_5593 |
| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| title | Development of Planar Optics for an Optical Tracking Sensor |
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