Systems, devices, and methods for angle- and wavelength-multiplexed holographic optical elements

Abstract

A holographic optical element includes a set of holograms formed in one or more layers of holographic material. The set of holograms includes a red hologram that is exclusively responsive to a first wavelength of red light incident thereon over a first range of angles of incidence, a green hologram that is exclusively responsive to a second wavelength of green light incident thereon over the first range of angles of incidence, and a blue hologram that is exclusively responsive to a third wavelength of blue light incident thereon over the first range of angles of incidence.

1 . A holographic optical element, comprising:
 a set of holograms formed in one or more layers of holographic material, the set of holograms comprising:
 a red hologram responsive to a first wavelength of red light incident thereon over a first range of angles of incidence and unresponsive to light of other wavelengths; 
 a green hologram responsive to a second wavelength of green light incident thereon over the first range of angles of incidence and unresponsive to light of other wavelengths; and 
 a blue hologram responsive to a third wavelength of blue light incident thereon over the first range of angles of incidence and unresponsive to light of other wavelengths. 
   
     
     
         2 . The holographic optical element of  claim 1 , further comprising a second set of holograms formed in the one or more layers of holographic material, the second set of holograms comprising:
 a red hologram responsive to the first wavelength of red light incident thereon over a second range of angles of incidence and unresponsive to light of other wavelengths;   a green hologram responsive to the second wavelength of green light incident thereon over the second range of angles of incidence and unresponsive to light of other wavelengths; and   a blue hologram responsive to the third wavelength of blue light incident thereon over the second range of angles of incidence and unresponsive to light of other wavelengths.   
     
     
         3 . The holographic optical element of  claim 1 , wherein the red hologram, the green hologram, and the blue hologram converge light to a same focus. 
     
     
         4 . The holographic optical element of  claim 2 , wherein the second red hologram, the second green hologram, and the second blue hologram converge light to a same focus. 
     
     
         5 . The holographic optical element of  claim 2 , wherein the red hologram, the green hologram, and the blue hologram converge light to a first same focus; wherein the second red hologram, the second green hologram, and the second blue hologram converge light to a second same focus; and wherein the second same focus is spatially separated from the first same focus. 
     
     
         6 . The holographic optical element of  claim 1 , wherein the red hologram, the green hologram, and the blue hologram apply a same optical function to the first wavelength of red light, the second wavelength of green light, and the third wavelength of blue light, respectively. 
     
     
         7 . The holographic optical element of  claim 2 , wherein the second red hologram, the second green hologram, and the second blue hologram apply a same optical function to the first wavelength of red light, the second wavelength of green light, and the third wavelength of blue light, respectively. 
     
     
         8 . The holographic optical element of  claim 1 , wherein the one or more layers of holographic material include a holographic material selected from the group consisting of a holographic film, a silver halide compound, and a photopolymer. 
     
     
         9 . A holographic combiner, comprising:
 a transparent eyeglasses lens;   a holographic element carried by the transparent eyeglasses lens, the holographic element comprising:
 a red hologram responsive to a first wavelength of red light incident thereon over a first range of angles of incidence and unresponsive to light of other wavelengths; 
 a green hologram responsive to a second wavelength of green light incident thereon over the first range of angles of incidence and unresponsive to light of other wavelengths; and 
 a blue hologram responsive to a third wavelength of blue light incident thereon over the first range of angles of incidence and unresponsive to light of other wavelengths. 
   
     
     
         10 . The holographic combiner of  claim 9 , wherein the holographic element is optically transparent to wavelengths other than the first wavelength of red light, the second wavelength of green light, and the third wavelength of blue light. 
     
     
         11 . The holographic combiner of  claim 9 , wherein the red hologram, the green hologram, and the blue hologram converge light to a same focus. 
     
     
         12 . The holographic combiner of  claim 9 , further comprising a second set of holograms formed in the one or more layers of holographic material, the second set of holograms comprising:
 a red hologram responsive to the first wavelength of red light incident thereon over a second range of angles of incidence and unresponsive to light of other wavelengths;   a green hologram responsive to the second wavelength of green light incident thereon over the second range of angles of incidence and unresponsive to light of other wavelengths; and   a blue hologram responsive to the third wavelength of blue light incident thereon over the second range of angles of incidence and unresponsive to light of other wavelengths.   
     
     
         13 . The holographic combiner of  claim 12 , wherein the second red hologram, the second green hologram, and the second blue hologram converge light to a same focus. 
     
     
         14 . The holographic optical element of  claim 12 , wherein the red hologram, the green hologram, and the blue hologram converge light to a first same focus; wherein the second red hologram, the second green hologram, and the second blue hologram converge light to a second same focus; and wherein the second same focus is spatially separated from the first same focus.