Abstract: A diffraction grating is disclosed for use as an output element of a diffractive waveguide combiner for an augmented reality or virtual reality display. The grating includes an interleaved rectangular grating (1213) comprising a first rectangular periodic array of optical structures (1211) and a second rectangular periodic array of optical structures (1212) arranged on the plane.

Abstract: A device for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable around a susceptor for inductive heating so as to reduce the oxygen content within the consumable. The susceptor can be a flattened piece of steel wool. The encasement can be a coating applied to the consumable can be packaging inside an encasement through which the aerosol can pass. Efficiency of the to create a porous shell. The device can have a receiver with an airtight seal and an airflow controller to optimize the aerosolizing process. The device can also have a recognition system to detect a sign on the consumable-containing package an execute the appropriate administration protocol.

Abstract: A susceptor for use in a heat-not-burn device, and a method of manufacturing thereof, using metal pieces incorporated together into a single unitary piece using a variety of techniques, such as compacting, heat and pressure, sintering, weaving, extruding, and the like, such that the susceptor is susceptible to degradation after use.

Abstract: A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package is minimized by limiting air inside the consumable-containing package by coating a plurality of holes in the encasement material that melts at high temperatures. The coating may also include a flavoring.

Abstract: A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside a housing. The consumable can be in the form of a compressed powder. A first end of the housing can be capped with an end cap and a second end of the housing can have a mouthpiece. The housing containing the consumable and the susceptor can be placed inside a case with an inductive heating element configured to heat the susceptor. Heating the susceptor results in the consumable being released as an aerosol for inhalation.

Abstract: A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside a housing. A first end of the housing can be capped with an end cap and a second end of the housing can have a mouthpiece. The housing containing the consumable and the susceptor can be placed inside a case with an inductive heating element configured to heat the susceptor. Heating the susceptor results in the consumable being released as an aerosol for inhalation.

Abstract: A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside a housing. A first end of the housing can be capped with an end cap and a second end of the housing can have a mouthpiece. The housing containing the consumable and the susceptor can be placed inside a case with an inductive heating element configured to heat the susceptor. Heating the susceptor results in the consumable being released as an aerosol for inhalation.

Abstract: A device for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement having a plurality of holes with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package can be minimized by limiting air inside the consumable-containing package by coating the encasement material that melts at high temperatures. The coating may also include a flavoring. Efficiency of the device can be enhanced with a self-resonant oscillator, moving coils, multi-prong susceptors, sensors, heat dissipation, air flow control, alignment mechanisms, and the like.

Abstract: A device for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement having a plurality of holes with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package is minimized by limiting air inside the consumable-containing package by coating the encasement material that melts at high temperatures. The coating may also include a flavoring. Efficiency of the device can be enhanced with a self-resonant oscillator, moving coils, multi-prong susceptors, sensors, heat dissipation, air flow control, alignment mechanisms, and the like.

Abstract: A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package is minimized by limiting air inside the consumable-containing package by coating a plurality of holes in the encasement material that melts at high temperatures. The coating may also include a flavoring.

Abstract: A device for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement having a plurality of holes with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package is minimized by limiting air inside the consumable-containing package by coating the encasement material that melts at high temperatures. The coating may also include a flavoring. Efficiency of the device can be enhanced with a self-resonant oscillator, moving coils, multi-prong susceptors, sensors, heat dissipation, air flow control, alignment mechanisms, and the like.

Abstract: A device for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement having a plurality of holes with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package is minimized by limiting air inside the consumable-containing package by coating the encasement material that melts at high temperatures. The coating may also include a flavoring.

Abstract: A device for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside an encasement having a plurality of holes with an induction heating element wrapped around the consumable-containing package to heat the susceptor using a magnetic field generated by the induction heating element. Combustion of the consumable-containing package is minimized by limiting air inside the consumable-containing package by coating the encasement material that melts at high temperatures. The coating may also include a flavoring.

Abstract: Devices providing adjustable optical power have previously been proposed for use as corrective lenses in prescription eyeglasses. There is disclosed a lens having optical power adjustable by relative lateral translation of two lens elements, the lens comprising: a first lens element sealed to a cover to define a cavity therebetween; a second lens element disposed within the cavity and coupled to an elongate drive element extending laterally from the second lens element, the second lens element being arranged to be driven laterally relative to the first lens element by lateral translation of the elongate drive element to thereby adjust the optical power of the lens, the lens comprising a lateral projection into which the cavity and drive element extend, the lateral projection having there mounted an adjuster for driving lateral translation of the elongate drive element. The lens reduces or prevents the ingress of dirt, moisture, sweat and grease between surfaces of the lens elements.

Abstract: Fixed position optical devices for displaying augmented reality images are provided herein. In one embodiment an optical device includes a AIIE having a waveguide that reflects a computer generated image along a central viewing axis, the computer generated image being received from an image generator optically coupled to the waveguide, and a fixed lens assembly for coupling a background image with the computer generated image to create the augmented reality display, the fixed lens assembly including a proximal lens disposed on one side of the waveguide, the proximal lens being fixedly spaced apart from the waveguide at a first distance, and a distal lens disposed on an opposing side of the AIIE from the one side, the distal lens being fixedly spaced apart from the waveguide at a second distance.

Abstract: Devices providing adjustable optical power have previously been proposed for use as corrective lenses in prescription eyeglasses. There is disclosed a lens having optical power adjustable by relative lateral translation of two lens elements, the lens comprising: a first lens element sealed to a cover to define a cavity therebetween; a second lens element disposed within the cavity and coupled to an elongate drive element extending laterally from the second lens element, the second lens element being arranged to be driven laterally relative to the first lens element by lateral translation of the elongate drive element to thereby adjust the optical power of the lens, the lens comprising a lateral projection into which the cavity and drive element extend, the lateral projection having there mounted an adjuster for driving lateral translation of the elongate drive element. The lens reduces or prevents the ingress of dirt, moisture, sweat and grease between surfaces of the lens elements.

Abstract: An apparatus (100) for automatically detecting a status of an oestrus indicator associated with an animal is disclosed. The apparatus (100) comprises a structure having two substantially parallel barrier means (1) and moveable barrier means (2) for selectively preventing an animal from proceeding between the parallel barrier means (1). A camera (11) is provided for capturing an electronic image of an area of interest of the animal (A), the area of interest comprising an area of the animal (A) which the oestrus indicator is usually associated with or attached to. Processing means (300) determine a status of the oestrus indicator based on the image. Animal position sensing means (6) are also provided, wherein, in use, closing of the moveable barrier means (1) is dependent on the animal position sensing means (6) detecting that a required portion of the animal (A) has moved past the moveable barrier means (1).

Abstract: Fixed position optical devices for displaying augmented reality images are provided herein. In one embodiment an optical device includes a AIIE having a waveguide that reflects a computer generated image along a central viewing axis, the computer generated image being received from an image generator optically coupled to the waveguide, and a fixed lens assembly for coupling a background image with the computer generated image to create the augmented reality display, the fixed lens assembly including a proximal lens disposed on one side of the waveguide, the proximal lens being fixedly spaced apart from the waveguide at a first distance, and a distal lens disposed on an opposing side of the AIIE from the one side, the distal lens being fixedly spaced apart from the waveguide at a second distance.

Abstract: A method of making a lens having adjustable optical power is disclosed. The lens is adjustable by relative lateral translation of at least two lens elements. The method may comprise providing a function yielding optical properties of the lens from starting geometries for the lens elements; refining the function to approximate required gaze angle optical performance over a range of said lateral translation; and using the refined function to derive geometries for making the lens elements. The function may comprise first and second functional parts respectively for the lens elements, and the method comprises using the function to derive geometries for making the lens elements, wherein the function relates optical path difference to a position across the lens elements, and the rate of change of curvature of the first functional part with position is different to the rate of change of curvature of the second functional part with position. There is also disclosed a lens having adjustable optical power.