AWARENESS GLASSES, CAR MIRROR UNIT, AND DISPLAY APPARATUS CONFIGURED TO INCREASE USER AWARENESS

• US 20170312541A1
• Filed: 07/20/2017
• Published: 11/02/2017
• Est. Priority Date: 12/30/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: BAEK, Jongin, KIM, Haksun, PARK, WonSang, JO, Mingyeong
• Granted Patent: US 10,307,608 B2
• Time in Patent Office: Days
• CPC Class Codes: A61M 2021/0044 by the sight sense
• CPC Class Codes: A61N 2005/0648 the light being directed to the eyes
• CPC Class Codes: A61N 5/0618 Psychological treatment
• CPC Class Codes: B60R 1/1207 with lamps; with turn indicators
• CPC Class Codes: G02B 19/0061 the light source comprising a LED semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission H01L33/00
• CPC Class Codes: G02B 5/1814 structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings G02B5/189 takes precedence
• CPC Class Codes: G02C 11/04 Illuminating means
• CPC Class Codes: G02C 7/086 Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles

Abstract

A pair of awareness glasses includes a frame, a light source, a driving unit, light guide lenses, and diffraction grating patterns. The light source unit is disposed in the frame. The light source unit is configured to generate light in response to input power. The driving unit is configured to supply the input power. The light guide lenses are configured to guide the light to the eyes of a user. The diffraction grating patterns are formed on surfaces of the light guide lenses. The diffraction grating patterns are configured to diffract and reflect the light to the eyes of the user. The light output from each of the diffraction grating patterns has a peak wavelength between 444 nm and 484 nm.

Claims

1. A car mirror unit, comprising:

a light source unit configured to generate light in response to a driving voltage;

a driving unit configured to supply the driving voltage to the light source unit;

a light guide mirror configured to guide the light, the light guide mirror being disposed in front of a driver; and

a diffraction grating pattern formed on a surface of the light guide mirror, the diffraction grating pattern being configured to diffract and reflect the light to the eyes of the driver,

wherein light output from the diffraction grating pattern has a peak wavelength between 444 nm and 484 nm.

2. The car mirror unit of claim 1, wherein a period of the diffraction grating pattern is within a range between 464 nm and 692.5 nm.

3. The car mirror unit of claim 1, wherein the diffraction grating pattern comprises one of a triangular pillar shape, a cylindrical pillar shape, and a quadrilateral pillar shape.

4. The car mirror unit of claim 1, further comprising:

a switch unit configured to transfer the driving voltage from the driving unit to the light source unit,

wherein the switch unit is turned on or off by the driver.

5. The car mirror unit of claim 1, further comprising:

a sleepiness determination unit configured to determine whether the driver is drowsy; and

a switch unit configured to transfer the driving voltage from the driving unit to the light source unit according to the determination result of the sleepiness determination unit.

6. The car mirror unit of claim 1, wherein the diffraction grating pattern is defined at a driver side to have a size corresponding to the face of the driver.

7. The car mirror unit of claim 1, wherein the diffraction grating pattern protrudes from inner surfaces of the light guide mirror towards the eyes of the user.

8. The car mirror unit of claim 7, wherein a height of the diffraction grating pattern from the inner surface of each of the light guide mirror is greater than 0 and less than 10 μ

m.

9. The car mirror unit of claim 1, wherein the light guide mirror defines the car windshield.

10. The car mirror unit of claim 1, wherein:

the light guide mirror comprises;

a light output surface facing the driver, and the diffraction grating pattern disposed on the light output surface;

an opposite surface facing the light output surface; and

side surfaces connecting the light output surface and the opposite surface; and

the light source unit is disposed beside at least one of the side surfaces to provide the light to the light guide mirror.