IP Library Granted Patent US 7,385,180
Granted Patent B2
US 7,385,180 · App. 11/421,610 · Granted Jun 10, 2008

Laser projector with brightness control and method

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Quick Facts
Patent No.
US 7,385,180
App. No.
11/421,610
Granted
Jun 10, 2008
Kind
B2
Abstract

A laser projector includes a laser, scanning mirrors projecting a laser line image on a surface, a computer including an algorithm controlling a speed of the laser line image, and a computer screen having a user interface. The user interface includes a throttle control which modifies the speed control algorithm permitting an operator to reduce the maximum speed of the projected laser line image using the throttle control, thereby improving the visibility of the laser line image. For example, a method of improving the visibility of a projected laser line image includes projecting a laser line image on a surface to determine the visibility of the laser line image and decreasing the maximum scanning speed of the projected laser line image if the visibility of the laser line image is insufficient.

Claims (29)

1. A method of improving the visibility of a projected laser line image, comprising:

projecting a laser line image from a laser projector on a surface to determine the visibility of at least a portion of said laser line image; and

decreasing the maximum scanning speed of said portion of said projected laser line image if the visibility of said portion of said laser line image is insufficient;

wherein decreasing the maximum scanning speed of said portion of said projected laser line image causes said portion of said laser line image to flicker, thereby improving the visibility of said portion of said laser line image.

2. The invention according to claim 1 , wherein said method includes decreasing the speed of said laser line image by controlling a signal to the scanning mirrors of said laser projector to reduce the maximum speed of said scanning mirrors.

3. The invention according to claim 1 , wherein said method includes decreasing the speed of said laser line image by limiting the maximum speed of a speed control algorithm of a computer controlling said laser projector.

4. The invention according to claim 1 , wherein a computer control of said laser projector projecting said laser line image includes a computer having a user interface.

5. The invention according to claim 4 , wherein said user interface includes a throttle control which modifies a speed control algorithm which reduces the maximum speed of the scanning mirrors of said laser projector.

6. The invention according to claim 5 , wherein said method includes manipulating the throttle control to reduce the maximum speed of the projected laser line image, thereby improving the visibility of the laser line image.

7. The invention according to claim 1 , wherein said method includes simultaneously decreasing the maximum scanning speed of multiple laser projectors.

8. A method of improving the visibility of a projected laser line image, comprising:

projecting a laser line image from a laser projector on a surface;

determining the visibility of at least a portion of said laser line image; and

decreasing the maximum scanning speed of said portion of said projected laser line image if the visibility of said portion of said laser line image is insufficient;

wherein decreasing the maximum scanning speed of said portion of said projected laser line image causes said portion of said laser line image to flicker, thereby improving the visibility of said portion of said laser line image.

9. The invention according to claim 8 , wherein said method includes decreasing the speed of said laser line image by controlling a signal to the scanning mirrors of said laser projector to reduce the maximum speed of said scanning mirrors.

10. The invention according to claim 8 , wherein said method includes decreasing the speed of said laser line image by limiting the maximum speed of a speed control algorithm of a computer controlling said laser projector.

11. The invention according to claim 8 , wherein a computer control of said laser projector projecting said laser line image includes a computer having a user interface.

12. The invention according to claim 11 , wherein said user interface includes a throttle control which modifies a speed control algorithm which reduces the maximum speed of the scanning mirrors of said laser projector.

13. The invention according to claim 12 , wherein said method includes manipulating said throttle control to reduce the maximum speed of said projected laser line image, thereby improving the visibility of said laser line image.

14. The invention according to claim 8 , wherein said method includes simultaneously decreasing the maximum scanning speed of multiple laser projectors.

15. A laser projector, comprising:

a laser,

scanning mirrors projecting a laser line image on a surface,

a computer including an algorithm controlling a speed of said laser line image, and

a computer screen having a user interface;

said user interface including a throttle control which is selectively operable to modify said speed control algorithm, thereby permitting an operator to reduce the maximum speed of at least a portion of said projected laser line image using said throttle control, wherein decreasing the maximum scanning speed of said portion of said projected laser line image causes said portion of said laser line image to flicker, thereby improving the visibility of said portion of said laser line image.

16. The invention according to claim 15 , wherein said throttle control is selectively operably to modify said speed control algorithm to reduce the maximum speed of said scanning mirrors.

17. The invention according to claim 15 , wherein said computer controls a plurality of laser projectors and said throttle control of said user interface permitting an operator to simultaneously reduce the maximum speed of said projected laser line image projected by said plurality of said laser projectors.

Assignments (14)
RELEASE OF SECURITY INTEREST Recorded Oct 23, 2024
From: ALLY BANK
To: VIRTEK VISION INTERNATIONAL INC.
Reel/Frame 068985/0533 →
RELEASE OF SECURITY INTEREST Recorded Sep 23, 2024
From: ANTARES CAPITAL LP
To: VIRTEK VISION INTERNATIONAL INC.
Reel/Frame 068668/0401 →
CHANGE OF NAME Recorded Aug 22, 2024
From: VIRTEK VISION INTERNATIONAL ULC
To: VIRTEK VISION INTERNATIONAL INC.
Reel/Frame 068749/0543 →
RELEASE OF SECURITY INTEREST Recorded Jun 3, 2021
From: LIGHTSHIP CAPITAL LLC
To: VIRTEK VISION INTERNATIONAL ULC
Reel/Frame 056428/0987 →
RELEASE OF SECURITY INTEREST Recorded Jun 3, 2021
From: ALLY BANK, AS AGENT
To: VIRTEK VISION INTERNATIONAL ULC
Reel/Frame 056428/0992 →
SECURITY AGREEMENT Recorded Jun 1, 2021
From: VIRTEK VISION INTERNATIONAL INC.
To: ALLY BANK, AS COLLATERAL AGENT
Reel/Frame 056447/0532 →
CHANGE OF NAME Recorded Sep 13, 2017
From: AGV TECHNOLOGY CANADA ULC
To: VIRTEK VISION INTERNATIONAL ULC
Reel/Frame 043574/0886 →
CHANGE OF NAME Recorded Sep 13, 2017
From: VIRTEK VISION INTERNATIONAL INC.
To: VIRTEK VISION INTERNATIONAL ULC
Reel/Frame 043844/0517 →
MERGER AND CHANGE OF NAME Recorded Sep 13, 2017
From: VIRTEK VISION INTERNATIONAL ULC; AGV TECHNOLOGY CANADA ULC
To: AGV TECHNOLOGY CANADA ULC
Reel/Frame 043844/0648 →
SECURITY AGREEMENT Recorded Jan 16, 2017
From: VIRTEK VISION INTERNATIONAL ULC
To: ALLY BANK, AS AGENT
Reel/Frame 041371/0742 →
SECURITY INTEREST Recorded Sep 7, 2016
From: VIRTEK VISION INTERNATIONAL ULC
To: LIGHTSHIP CAPITAL LLC
Reel/Frame 039662/0917 →
SECURITY AGREEMENT Recorded Sep 2, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
To: ANTARES CAPITAL LP, AS AGENT
Reel/Frame 036526/0811 →
SECURITY AGREEMENT Recorded Jan 10, 2013
From: GERBER SCIENTIFIC INTERNATIONAL, INC.; VIRTEK VISION INTERNATIONAL INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Reel/Frame 029608/0218 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2006
From: RUEB, KURT D.; BIANCHIN, EDWARD S.
To: VIRTEK VISION INTERNATIONAL INC.
Reel/Frame 018090/0448 →