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US 10,649,126 B2Granted
Holder and systems for waveguide-based illumination
AssigneeL.E.S.S. Ltd
InventorYann Tissot
Life of this patent
Estimating the term…
Abstract
A holder has a support structure in which a groove is formed and is sized to receive therein a side of a waveguide that is fixed in position next to a surface of the groove. The groove runs in a longitudinal direction, along the length direction of the waveguide. The holder a) reflects, diffuses or absorbs some of the out-coupled from the side of the waveguide, or b) wavelength converts some of the out-coupled light, to produce side illumination that emerges from a side of the holder. Other embodiments are also described and claimed.
Claims21
An illumination apparatus comprising:
- an optical fiber comprising a core medium that is covered by a cladding medium and having a cylindrical shape;
- a holder having a support structure in which a groove is formed, wherein the groove is sized to receive therein a side of the optical fiber that is to be fixed in position next to a surface of the groove, wherein the groove runs in a longitudinal direction along the length of the side of the optical fiber, wherein the holder is to one of a) reflect, diffuse or absorb some light that is out-coupled from the side of the optical fiber, or b) wavelength convert some of the out-coupled light, to produce side illumination that emerges from a side of the holder, wherein the holder comprises an opaque portion that is in front of and prevents some, not all, of the out-coupled light that is emerging from the side of the optical fiber, from reaching an illumination region, while other portions of the holder allow the out-coupled light to reach the illumination region.
Dependencies are inferred from the claim text.