Line lighting device
AssigneeYazaki Corporation
InventorsYasuo Suzuki, Sho Okamura
Life of this patent
Estimating the term…
Abstract
A line lighting device includes a light emitting unit, a light guide rod and a case. The light emitting unit includes a light emitter emitting light. The light guide rod transmits the light emitted by the light emitting unit and guides the light in a longitudinal direction thereof. The case includes a case main body receiving the light guide rod therein. The light emitting unit is installed to the light guide rod and the case by rotating the light emitting unit by a predetermined angle with respect to the light guide rod and the case, while maintaining a state where a first end of the light guide rod in the longitudinal direction of the light guide rod is opposed to the light emitter.
Claims8
A line lighting device comprising:
- a light emitting unit that includes a light emitter emitting light;
- a light guide rod formed in a rod-like shape that transmits the light emitted by the light emitting unit and guides the light in a longitudinal direction thereof;
- and
- a case formed in a rod-like shape that includes a case main body being partially opened in a longitudinal direction thereof and receiving the light guide rod therein,
- wherein
- the light guide rod has a first end which is one end in the longitudinal direction thereof, and
- the light emitting unit is installed to the light guide rod and the case by rotating the light emitting unit by a predetermined angle with respect to the light guide rod and the case, while maintaining a state where (i) the first end of the light guide rod is opposed to the light emitter of the light emitting unit and (ii) a planar end surface of the first end of the light guide rod is parallel to a light emitting surface of the light emitter of the light emitting unit.
A line lighting device comprising:
- a light emitting unit that emits light;
- a light guide rod formed in a rod-like shape that transmits the light emitted by the light emitting unit and guides the light in a longitudinal direction thereof;
- and
- a case formed in a rod-like shape that includes a case main body being partially opened in a longitudinal direction thereof and receiving the light guide rod therein,
- wherein the case has a first end which is one end in a longitudinal direction thereof and a second end which is another end in the longitudinal direction thereof,
- a value of a cross-sectional secondary moment of the case main body increases in stages from the second end of the case toward the first end of the case, and
- the cross-sectional secondary moment is a cross-sectional secondary moment of a plane which is orthogonal to the longitudinal direction of the case.
Dependencies are inferred from the claim text.