Laser housing and dual light source lighting device with laser

Abstract

Disclosed herein is a housing for containing a laser and lens for use in a laser light projection display, and a lighting device incorporating the laser within the housing and other light sources, such as light-emitting diodes (LEDs). The laser and lens are secured within a housing and maintain a spaced distance using a spacer. The lighting device uses the laser in combination with LEDs arrayed around the laser to provide a dual source light.

I claim: 
     
         1 . A lighting device comprising:
 a direct diode laser not surrounded by a heatsink, the laser capable of producing a laser light when powered;   a lens collimating the light produced by the laser;   a stationary diffraction grating;   a holographic optical element;   a spacer having a first end and a second end between the laser and the lens having a distance defined as the focal length, wherein the spacer contacts the laser on the first end and the lens on the second end; and   a switched mode power supply for providing power to the laser.   
     
     
         2 . The lighting device of  claim 1 , wherein the laser is situated within a first end of a housing. 
     
     
         3 . The lighting device of  claim 2  wherein electrical leads connect the laser to an electrical power source outside of the housing. 
     
     
         4 . The lighting device of  claim 2  further comprising an insert securing the lens within the housing. 
     
     
         5 . The lighting device of  claim 2  wherein the holographic optical element is a diffractive grating. 
     
     
         6 . The lighting device of  claim 5  wherein the grating is secured within a second end of the housing by one or more rings. 
     
     
         7 . A lighting device comprising:
 a direct diode laser not surrounded by a heatsink, the laser capable of producing a laser light when powered;   a lens collimating the light produced by the laser;   a spacer having a first end and a second end between the laser and the lens having a distance defined as the focal length, wherein the spacer contacts the laser on the first end and the lens on the second end;   a stationary diffraction grating;   one or more LEDs; and   a switched mode power supply for providing power to the laser and LEDs.   
     
     
         8 . The device of  claim 7 , further comprising a housing containing the direct diode laser, lens, spacer, stationary diffraction grating, LEDs, and switched mode power supply. 
     
     
         9 . The device of  claim 8 , further comprising a motherboard programmed to control the laser and LEDs. 
     
     
         10 . The device of  claim 8  further comprising a holographic optical element situated within the housing and in the light path of the laser. 
     
     
         11 . The device of  claim 10  wherein the LEDs are arranged around the holographic optical element. 
     
     
         12 . The device of  claim 11  further comprising a motor powered by the switched mode power supply configured to rotate the holographic optical element about an axis coincident with the light path of the laser. 
     
     
         13 . The device of  claim 12  further comprising a cover having lumens for permitting light from the laser and LEDs to pass through.