Abstract: Optical systems for performing gaze tracking and imaging an external scene are disclosed. An example optical system may include light sources for emitting visible and non-visible light. The optical system may include a waveguide that is operatively coupled to the light sources. A volume holographic light coupling element may be disposed between the surfaces of the waveguide. The volume holographic light coupling element may include a grating medium and a first volume holographic grating structure within the grating medium. In some examples, the first volume holographic grating structure may be configured to reflect non-visible light of a first wavelength about a first reflective axis offset from a surface normal of the grating medium at a first incidence angle. The optical system may also include an optical filter. Another example optical system may include an imaging device that is configured to receive the light external to the optical system.

Abstract: Optical systems for performing gaze tracking and imaging an external scene are disclosed. An example optical system may include light sources for emitting visible and non-visible light. The optical system may include a waveguide that is operatively coupled to the light sources. A volume holographic light coupling element may be disposed between the surfaces of the waveguide. The volume holographic light coupling element may include a grating medium and a first volume holographic grating structure within the grating medium. In some examples, the first volume holographic grating structure may be configured to reflect non-visible light of a first wavelength about a first reflective axis offset from a surface normal of the grating medium at a first incidence angle. The optical system may also include an optical filter. Another example optical system may include an imaging device that is configured to receive the light external to the optical system.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (94, 96) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (94, 96) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (94, 96) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (94, 96) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (94, 96) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (94, 96) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (94, 96) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/ or steam are used within the housing to continuously cook the emulsion portions within the tubes (94, 96) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (94, 96) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (94, 96) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (94, 96) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (94, 96) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (94, 96) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (94, 96) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (94, 96) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (94, 96) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (92, 94) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (92, 94) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (92, 94) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (92, 94) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (94, 96) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (94, 96) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (94, 96) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (94, 96) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (92, 94) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (92, 94) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (92, 94) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/ or steam are used within the housing to continuously cook the emulsion portions within the tubes (92, 94) to the desired extent.

Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (92, 94) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (92, 94) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (92, 94) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (92, 94) to the desired extent.