IP Library Granted Patent US 10,205,300
Granted Patent B1
US 10,205,300 · App. 14/984,108 · Granted Feb 12, 2019

Gallium and nitrogen containing laser diode dazzling devices and methods of use

Inventors: James W. Raring (Fremont, CA); Paul Rudy (Fremont, CA); Vinod Khosla (Fremont, CA); Pierre Lamond (Fremont, CA); Steven P. Denbaars (Fremont, CA); Shuji Nakamura (Fremont, CA); Richard T. Ogawa (Fremont, CA)
H01S5/042F41B15/00F41H9/10H01S5/005H01S5/0428H01S5/1096H01S5/2203H01S5/34333
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Quick Facts
Patent No.
US 10,205,300
App. No.
14/984,108
Granted
Feb 12, 2019
Kind
B1
Abstract

Laser dazzler devices and methods of using laser dazzler devices are disclosed. More specifically, embodiments of the present invention provide laser dazzling devices power by one or more green laser diodes characterized by a wavelength of about 500 nm to 540 nm. In various embodiments, laser dazzling devices according to the present invention include non-polar and/or semi-polar green laser diodes. In a specific embodiment, a laser dazzling device includes a plurality of green laser diodes.

Claims (28)

1. A method of using a laser dazzling system, comprising:

providing a laser dazzling apparatus comprising a gallium and nitrogen containing laser diode device; the laser diode device comprising a plurality of green laser diodes each having an active region and a laser stripe region configured to emit a first laser beam characterized by an emission in a wavelength range of between about 500 nm to about 540 nm, the active region comprising gallium and nitrogen containing material and having a plurality of well layers and barrier layers stacked in a first direction, the laser stripe region configured to project the first laser beam in a second direction substantially orthogonal to the first direction, wherein first and second laser diodes of the plurality of green laser diodes emit laser beams characterized by emissions at wavelengths that differ by at least about 10 nm;

activating a first driving circuit electrically coupled to the laser diode device to enable the laser dazzling apparatus to be used as a laser pointer device, the first driving circuit being adapted to deliver between about 5 mW and 25 mW of electrical power to the laser diode device; and

activating a second driving circuit electrically coupled to the laser diode device to enable the laser dazzling apparatus to be used as a laser dazzler device, the second driving circuit being adapted to deliver between about 25 mW and 800 mW of electrical power to the laser diode device.

2. The method of claim 1 , further comprising aiming the laser dazzling apparatus using the laser pointer device.

3. The method of claim 1 , wherein the laser dazzling apparatus comprises a laser aiming device.

4. The method of claim 1 , wherein the laser dazzling apparatus comprises a second stage, the method further comprising initiating the second stage.

5. The method of claim 4 , wherein the second stage comprises a second laser beam characterized by one or more wavelengths from about 420 nm to about 500 nm, one or more wavelengths from about 500 nm to about 540 nm, or a combination thereof.

6. The method of claim 4 , wherein the second stage comprises a Taser device configured to emit an electroshock.

7. The method of claim 4 , wherein the second stage comprises a pepper spray emitting device.

8. The method of claim 4 , wherein the second stage comprises a rubber bullet projectile launching device.

9. The method of claim 4 , wherein the laser dazzling apparatus comprises a third stage, the method further comprising initiating the third stage.

10. The method of claim 9 , wherein the third stage comprises a non-lethal stage.

11. The method of claim 9 , wherein the third stage comprises a lethal stage.

12. The method of claim 11 , wherein the lethal stage comprises a firearm.

13. The method of claim 1 , further comprising providing an optical concentrator aligned with the laser diode device.

14. The method of claim 1 , where the laser diode device comprises a green laser diode characterized by a polar {0001} surface orientation.

15. The method of claim 1 , where the laser diode device comprises a green laser diode characterized by a non-polar surface orientation.

16. The method of claim 1 , where the laser diode device comprises a green laser diode characterized by a semi-polar surface orientation.

17. The method of claim 1 , where the laser diode device comprises a green laser diode characterized by a semi-polar {20-21} surface orientation.

18. The method of claim 1 , wherein the laser diode device comprises a gallium and nitrogen containing bulk substrate.

19. The method of claim 1 , wherein the first laser beam is characterized by a power level less than 100 W.

20. The method of claim 1 , wherein the first laser beam is characterized by a power level less than 1 W.

21. The method of claim 1 , wherein the first laser beam is characterized by a power level less than 10 W.

22. The method of claim 1 , further comprising adjusting the size of the laser beam at a predetermined distance using an optic.

23. The method of claim 1 , wherein the driving circuit delivers pulsed electrical energy.

24. A method of claim 1 , further comprising:

directing the first laser beam at the subject.

Assignments (4)
CHANGE OF NAME Recorded Mar 26, 2021
From: SORAA LASER DIODE, INC.
To: KYOCERA SLD LASER, INC.
Reel/Frame 055736/0871 →
CHANGE OF NAME Recorded Mar 15, 2021
From: SORAA LASER DIODE, INC.
To: KYOCERA SLD LASER, INC.
Reel/Frame 056001/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2021
From: RARING, JAMES W.; RUDY, PAUL; KHOSLA, VINOD; LAMOND, PIERRE; DENBAARS, STEVEN P.; NAKAMURA, SHUJI; OGAWA, RICHARD T.
To: SORAA, INC.
Reel/Frame 055481/0108 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2021
From: SORAA, INC.
To: SORAA LASER DIODE, INC.
Reel/Frame 055482/0632 →
Continuity (3)
Continuation 13938048 · Jul 9, 2013
Continuation In Part 12787343 · May 25, 2010
Provisional Application 61182104 · May 29, 2009
Cited By (1)
US 12,218,477