patent · US6980303
Light-emitting/receiving combined unit and displacement sensors using the same
27 December 2005
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
The present invention provides a light emitting/receiving composite unit ( 1 ) for emitting and receiving lights, which includes a light source ( 3 ), an optical splitting unit ( 4 ) for splitting returning lights to the composite unit ( 1 ) into a plurality of lights, a polarizing unit ( 5 ) for increasing and decreasing quantity of lights transmitted therefrom corresponding to polarization state of the returning lights, and an optical receiving unit ( 6 ) which has a plural...
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2002-02-01
- Source
- Google Patents bibliographic record
- Granted
- 2005-12-27
- Inventors
- Hidehiro Kume; Akihito Nakayama; Kayoko Taniguchi; Akihiro Kuroda; Sony Corp; Sony Precision Technology Inc