Laser beam module for simultaneously producing two mutually perpendicular optical planes

• US 6,892,463 B1
• Filed: 10/29/2003
• Issued: 05/17/2005
• Est. Priority Date: 10/29/2003
• Status: Expired due to Fees

• Current Assignee: Jian-Hua Pu
• Original Assignee: Jian-Hua Pu
• Inventors: Pu, Jian-Hua
• Primary Examiner(s): BENNETT, GEORGE B
• Application Number:
  US10/694,865
• Publication Number:
  US 20050091859A1
• Time in Patent Office: 566 Days
• Field of Search: 332/27, 332/62, 332/63, 332/76, 332/81, 332/82, 332/85, 33D/IG.21, 356/138, 356/147, 356/254, 359/629
• US Class Current: 33/281
• CPC Class Codes: G01C 15/004 Reference lines, planes or sectors
• CPC Class Codes: Y10S 33/21 with laser

Abstract

A laser beam module capable of simultaneously producing two mutually perpendicular optical indicator planes, and adapted for usage on building construction sites, thereat synchronously acquiring horizontal and perpendicular measurements as a basis for datum lines. The laser beam module primarily comprises a laser beam generator, a deflector is disposed in an optical path and utilized to split a laser beam thereof, whereby two light beams emerging from the deflector synchronously proceed towards two optical expanders, the two optical expanders being positioned such as to be mutually perpendicularly related, wherefrom the two light beams are synchronously transformed and therefrom expand to project a horizontal optical plane (beam) and a vertical optical plane (beam).

Claims

1. A device capable of producing two mutually perpendicular laser beam planes comprising:

a) at least one laser module emitting an irradiated light beam and having;

i) a semiconductor laser emitting a diffused light beam; and

ii) a focusing system focusing the diffused light beam and emitting the irradiated light beam;

b) at least one optical deflector deflecting and splitting the irradiated light beam into two perpendicular light beams, each of the at least one optical deflector includes a prism and an optical wedge correcting a transmission declination resulting from a refracting surface of the prism; and

c) two light beam expanders, each of the two light beam expanders has a conical shaped interior and hollow electric motor, each of the two light beam expanders expanding one of the two perpendicular light beams into one of two perpendicular optical planes.

2. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein the at least one optical deflector is a reflecting optical component.

3. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein the at least one optical deflector is configured with a beam splitting film, and utilized as a semi-reflecting, beam splitting optical component.

4. The device capable of producing two mutually perpendicular laser beam planes as in claim 1, wherein the at least one optical deflector is placed after a first expander of the two light beam expanders.

7. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein the laser module is firmly affixed to an axial rotatable platform having an axis collinear with gravitational pull and perpendicular to two mutually perpendicular optical planes;

upon a plumb being in an equilibrium position, a fine laser beam irradiated from the laser module is collinear with gravitational pull, when the plumb deviates from the equilibrium position, gravitation pulls on the plumb, and returns the plumb to the equilibrium position, whereupon the fine laser beam irradiating from the laser module is again collinear with gravitational pull, thus enabling producing one horizontal plane and one perpendicular plane;

upon the plumb oscillating, magnetic lines of force of a permanent magnetic body are segmented resulting in a magnetic pulling force that quickly returns the plumb to the equilibrium position.

9. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein the laser module connects to a copper disk-shaped plumb through a cantilever.

11. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein a static plate is configured directly below the plumb, upon which is affixed at least one permanent magnetic body, and together with the plumb forms a pulling-motion system.

13. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein a bubble leveling instrument may be configured on an external surface of a housing, and utilized to provide a horizontal reference surface.

14. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein a reflecting conical surface of each of the two light beam expanders is totally reflecting.

16. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 1, wherein a central position of the conical optical expander provides functionally for the light beam passing through each of the two light beam expanders to form another light beam.

5. The device capable of producing two mutually perpendicular laser beam planes as in 1, wherein the at least one optical deflector is placed before a first expander of the two light beam expanders.

12. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 5, wherein a static steel plate is configured directly below the plumb, upon which is affixed at least one permanent magnetic body, and together with the plumb forms a pulling-motion system.

6. The device capable of producing two mutually perpendicular laser beam planes as in 1, wherein one of the two light beam expanders rotates one of the two perpendicular optical planes around and perpendicular to a central axis of the at least one laser module.

8. The device capable of producing two mutually perpendicular laser beam plates as claimed in claim 6, wherein the laser module is firmly affixed to an axial rotatable platform having an axis collinear with gravitational pull and perpendicular to two mutually perpendicular optical planes;

upon a plumb being in an equilibrium position, a fine laser beam irradiated from the laser module is collinear with gravitational pull, when the plumb deviates from the equilibrium position, gravitation pulls on the plumb, and returns the plumb to the equilibrium position, whereupon the fine laser beam irradiating from the laser module is again collinear with gravitational pull, thus enabling producing one horizontal plane and one perpendicular plane;

upon the plumb oscillating, magnetic lines of force of a permanent magnetic body are segmented resulting in a magnetic pulling force that quickly returns the plumb to the equilibrium position.

10. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 6, wherein the laser module connects to a copper disk-shaped plumb through a cantilever.

15. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 6, wherein a reflecting conical surface of a each of the two light beam expanders is totally reflecting.

17. The device capable of producing two mutually perpendicular laser beam planes as claimed in claim 6, wherein a central position of the conical optical expander provides functionally for the light beam passing through each of the two light beam expanders to form another light beam.