Vehicular lamp and vehicle comprising same

Patent metadata

Field	Value
Publication number	US-10723045-B2
Application number	US-201716310695-A
Country	US
Kind code	B2
Filing date	Jun 13, 2017
Priority date	Jun 23, 2016
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

An embodiment relates to a vehicular lamp and a vehicle comprising the same, the vehicular lamp comprising: a lens portion; and a light source portion for emitting light toward the lens portion, wherein the lens portion comprises a body having least one curved surface and a film portion arranged on one side of the body so as to generate a 3D stereoscopic image using the light, and the lens portion is injected in an in-mold labelling (IML) type using a mold. Accordingly, the design-related degree of freedom can be improved, thereby providing an enhanced aesthetic appearance, and the manufacturing process can be simplified, thereby improving the productivity.

First claim

The invention claimed is:

1. A vehicular lamp comprising:
a lens portion; and
a light source portion configured to emit light toward the lens portion,
wherein:
the lens portion includes a body including at least one curved surface and a film portion disposed on one side of the body and configured to form a three-dimensional image using the light;
the film portion includes a plurality of unit optical films configured to form the three-dimensional image, and a base film interposed between the unit optical film and the body;
the plurality of unit optical films are disposed apart from each other by a predetermined separation distance (d 2 ) to form a slit between the unit optical films, and
wherein a separation distance (d 2 ) between the unit optical films to form the slit on the basis of a width (W) of the unit optical film is in a range of 0.01×W to 0.05×W, wherein W is the width of the unit optical film and d 2 is the separation distance of the unit optical films.

2. The vehicular lamp of claim 1 , wherein the unit optical film is printed on one side of the base film.

3. The vehicular lamp of claim 1 , wherein patterns configured to form the three-dimensional image are formed on at least any one of one side and the other side of the unit optical film.

4. The vehicular lamp of claim 3 , wherein the plurality of patterns are disposed apart from each other by a predetermined separation distance (d).

5. The vehicular lamp of claim 1 , wherein:
patterns configured to form the three-dimensional image are formed on each of one side and the other side of the unit optical film; and
the patterns formed on the other side are obliquely formed at a predetermined angle (θ) with respect to a longitudinal direction of the patterns formed at one side thereof.

6. The vehicular lamp of claim 5 , wherein the plurality of patterns are disposed apart from each other by a predetermined separation distance (d 1 ).

7. A vehicular lamp comprising:
a lens portion; and
a light source portion configured to emit light toward the lens portion,
wherein:
the lens portion includes a body having at least one curved surface and a film portion disposed on one side of the body and configured to form a three-dimensional image using the light;
the film portion includes a plurality of first unit optical films configured to form the three-dimensional image, a plurality of second unit optical films configured to form the three-dimensional image, and a base film;
the first unit optical film and the second unit optical film are disposed apart from each other by a predetermined separation distance (d 3 ) on one side of the base film, and

wherein:
patterns configured to form the three-dimensional image are formed on one side and the other side of each of the first unit optical film and the second unit optical film; and
the patterns formed on the other side are obliquely formed at a predetermined angle with respect to a longitudinal direction of the patterns formed on one side thereof.

8. The vehicular lamp of claim 7 , wherein the first unit optical film disposed on the one side of the base film is formed in at least one shape among a triangular shape, a rectangular shape, and a trapezoidal shape.

9. The vehicular lamp of claim 7 , wherein patterns configured to form the three-dimensional image are formed on at least one of one side and the other side of each of the first unit optical film and the second unit optical film.

10. The vehicular lamp of claim 9 , wherein the plurality of patterns are disposed apart from each other by a predetermined separation distance (d).

11. A vehicular lamp comprising:
a lens portion; and
a light source portion configured to emit light toward the lens portion,
wherein:
the lens portion includes a body having at least one curved surface and a film portion disposed on one side of the body and configured to form a three-dimensional image using the light; and
the lens portion is injection molded through in-mold labelling (IML) using a mold,

wherein the film portion includes:
an optical film configured to form the three-dimensional image; and
a base film interposed between the optical film and the body,

wherein an adhesive layer is further interposed between the base film and the body to improve adhesion by which the base film is adhered to the body, a protection film is disposed on one side of the optical film and configured to protect the optical film, and a reflective layer is further interposed between the optical film and the protection film to improve a reflectivity of the vehicular lamp to enhance a light efficiency of the light.

12. The vehicular lamp of claim 11 , wherein patterns configured to form the three-dimensional image are formed on at least any one of one side and the other side of the optical film.

13. The vehicular lamp of claim 11 , wherein an oxidation prevention film is further interposed between the reflective layer and the protection film to prevent oxidation of the reflective layer which contains aluminum or silver.

14. The vehicular lamp of claim 13 , wherein the oxidation prevention film contains silicon or stainless steel.

Assignees

• Lg Innotek Co Ltd

Inventors

• Choi Young Jae
• Park Kwang Ho
• Jang Jae Hyuk
• Lee Dong Hyun
• Yang Hyun Duck
• Han Sa Rum

Classifications

• B29C37/005 Primary

  Compensating volume or shape change during moulding, in general · CPC title

• F21S43/26 Primary

  Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255 · CPC title

• B29C2045/14918

  in-mould-labelling · CPC title

• F21V5/003

  using holograms · CPC title

• F21S41/20

  characterised by refractors, transparent cover plates, light guides or filters · CPC title