Light-sensitive photochromic contact lens demonstration devices and related methods are disclosed. To provide for the convenient and efficient demonstration of a photochromic contact lens change, the demonstration device includes a controllable lighting-emitting device to expose a demonstrated photochromic contact lens to UltraViolet (UV) and/or High-Energy Visible (HEV) light to cause a photochromic contact lens to change from a non-darkened to darkened state. The demonstration device also includes a viewing window that allows viewing of the contact lens changing from a non-darkened to darkened state as a result of exposure to UV/HEV light and back to a non-darkened state when the light is removed. Further, the photochromic contact lens demonstration device can also include an optional heating circuit to heat the photochromic contact lens during demonstration to cause the photochromic contact lens to change from a darkened state back to a non-darkened state more quickly.

A method implemented by computer means for determining a visual effect of an ophthalmic lens, the method comprising: —an optical data receiving step (S1), during which optical data relating to the optical function of an ophthalmic lens is received, —an acquisition step (S2), during which at least one image of the visual environment of a user is acquired, —a depth map determining step (S3), during which a depth map of the acquired image of the visual environment of the user is determined, —a visual effect determining step (S4), during which based on the depth map and the optical data, a visual effect that would be introduced by the ophthalmic lens if the visual environment was seen through the ophthalmic lens is determined.

A method implemented by computer means for determining a visual effect of an ophthalmic lens, the method comprising: —an optical data receiving step (S1), during which optical data relating to the optical function of an ophthalmic lens is received, —an acquisition step (S2), during which at least one image of the visual environment of a user is acquired, —a depth map determining step (S3), during which a depth map of the acquired image of the visual environment of the user is determined, —a visual effect determining step (S4), during which based on the depth map and the optical data, a visual effect that would be introduced by the ophthalmic lens if the visual environment was seen through the ophthalmic lens is determined.

A programmable device configured for education and entertainment is described. In one embodiment, the programmable device includes a circuit board with a magnetic reed switch and a plurality of light emitting diodes (LEDs), speakers, and other electronic components. In one embodiment, the magnetic reed switch is configured to activate one or more modes of the programmable device. The LEDs is configured to display a pattern of light. The speakers are configured to emit audio. In one embodiment, the programmable device includes a polymer disk with a cylindrical receptacle to connect the programmable device to the polymer disk.

A programmable device configured for education and entertainment is described. In one embodiment, the programmable device includes a circuit board with a magnetic reed switch and a plurality of light emitting diodes (LEDs), speakers, and other electronic components. In one embodiment, the magnetic reed switch is configured to activate one or more modes of the programmable device. The LEDs is configured to display a pattern of light. The speakers are configured to emit audio. In one embodiment, the programmable device includes a polymer disk with a cylindrical receptacle to connect the programmable device to the polymer disk.

Light-sensitive photochromic contact lens demonstration devices and related methods are disclosed. To provide for the convenient and efficient demonstration of a photochromic contact lens change, the demonstration device includes a controllable lighting-emitting device to expose a demonstrated photochromic contact lens to UltraViolet (UV) and/or High-Energy Visible (HEV) light to cause a photochromic contact lens to change from a non-darkened to darkened state. The demonstration device also includes a viewing window that allows viewing of the contact lens changing from a non-darkened to darkened state as a result of exposure to UV/HEV light and back to a non-darkened state when the light is removed. Further, the photochromic contact lens demonstration device can also include an optional heating circuit to heat the photochromic contact lens during demonstration to cause the photochromic contact lens to change from a darkened state back to a non-darkened state more quickly.

A demonstration device for demonstrating at least one thermally-reversible characteristic of a photochromic optical article, such as an optical article having a photochromic material, having a housing defining an interior, and an inspection platform within the interior of the housing configured for supporting at least a portion of the optical article. The demonstration device further has at least one ultraviolet light source configured to radiate ultraviolet light into the interior of the housing, and at least one inspection light source configured to illuminate at least a portion of the interior of the housing. The demonstration device further has at least one heating device configured to heat at least a portion of the interior of the housing. The at least one heating device has at least one heat source and at least one fan.

A demonstration device for demonstrating at least one thermally-reversible characteristic of a photochromic optical article, such as an optical article having a photochromic material, having a housing defining an interior, and an inspection platform within the interior of the housing configured for supporting at least a portion of the optical article. The demonstration device further has at least one ultraviolet light source configured to radiate ultraviolet light into the interior of the housing, and at least one inspection light source configured to illuminate at least a portion of the interior of the housing. The demonstration device further has at least one heating device configured to heat at least a portion of the interior of the housing. The at least one heating device has at least one heat source and at least one fan.

The method and system utilized the measurement of the “absolute” velocities or equivalent parameters of the electromagnetic devices and objects, which are defined as the velocities relative to the real origin of the electromagnetic wave, to accurately picture their impacts on the propagation and measurement of the electromagnetic wave and compensate for these impacts correspondingly. The comprehensive information of the “absolute” velocities, including both the measured values and the calculated right timings, is utilized to calibrate and control the electromagnetic device and calculate the results to improve performance and accuracy. The method and system include the absolute velocity measurement, the calibration and control of the device, and the computation of the right timings and results.

The method and system utilized the measurement of the “absolute” velocities or equivalent parameters of the electromagnetic devices and objects, which are defined as the velocities relative to the real origin of the electromagnetic wave, to accurately picture their impacts on the propagation and measurement of the electromagnetic wave and compensate for these impacts correspondingly. The comprehensive information of the “absolute” velocities, including both the measured values and the calculated right timings, is utilized to calibrate and control the electromagnetic device and calculate the results to improve performance and accuracy. The method and system include the absolute velocity measurement, the calibration and control of the device, and the computation of the right timings and results.