Pixieray Oy

Disclosed is an optical element with a first substrate and a second substrate. A cavity is formed between first substrate and second substrate; a material, wherein liquid state of material has refractive index that matches refractive index of at least one of: first substrate, second substrate; a liquid reservoir that is to be employed to hold liquid state; a gas reservoir that is to be employed to hold a gaseous state of the material; means for converting gaseous state into liquid state; fluid channel(s) connecting cavity to liquid reservoir and to gas reservoir; and means for controlling supply of liquid state to cavity through fluid channel(s) and for controlling replacement of liquid state with the gaseous state in cavity, wherein given optical power is produced by optical element when cavity is filled with gaseous state.

A method for tracking a core body temperature of a user using an optical apparatus. The method includes measuring a temperature of at least one point on an ocular surface of the user's eye, at a plurality of time instants during a time period, wherein said measuring is performed using at least one temperature sensor, and wherein the at least one point lies within a sensing area of the at least one temperature sensor; and estimating the core body temperature of the user at the plurality of time instants, based on the measured temperature of the at least one point at the plurality of time instants.

A hinge includes a first hinge part having a first end and a second end; a second hinge part having a third end and a fourth end; a connecting member for connecting the first hinge part and the second hinge part for providing first rotation point to allow rotation of the first hinge part with respect to the second hinge part; a first electrical connector at the first end and a second electrical connector at the fourth end, an electrical conductor passing through the first hinge part and the second hinge part for connecting the first electrical connector to the second electrical connector; and a sealing arranged at least at the first end, wherein the sealing is compressed in at least one of: an axial direction, a radial direction.

Disclosed is a method for manufacturing an optical device. An electrically-conductive adhesive material is deposited on a first part of a first electrode deposited on a first substrate. A layer of at least one active material is formed between the first substrate and a second substrate, wherein the first electrode is disposed between the first substrate and said layer, and a second electrode is disposed between the second substrate and said layer. The optical device is cut through the first part of the first electrode, thereby exposing the ECA material deposited on the first part of the first electrode. A driving circuit of the optical device is electrically connected with the ECA material deposited on the first part of the first electrode, to provide an electrical connection between the driving circuit and the first electrode.

Disclosed is a method for manufacturing an optical device. An electrically-conductive adhesive material is deposited on a first part of a first electrode deposited on a first substrate. A layer of at least one active material is formed between the first substrate and a second substrate, wherein the first electrode is disposed between the first substrate and said layer, and a second electrode is disposed between the second substrate and said layer. The optical device is cut through the first part of the first electrode, thereby exposing the ECA material deposited on the first part of the first electrode. A driving circuit of the optical device is electrically connected with the ECA material deposited on the first part of the first electrode, to provide an electrical connection between the driving circuit and the first electrode.

An optical apparatus includes eye-tracking means; a dominant-eye optical element for dominant eye, a non-dominant-eye optical element for non-dominant eye of a user and processor. Each optical element includes a first substrate and a second substrate, and active material encased between the substrates, controlling means for controlling active material to generate optical power(s). The processor is configured to determine gaze directions of both eyes; detect when given criteria is satisfied, such satisfaction being when gaze directions have not converged for predefined time period(s) and/or within predefined error margin; and upon such satisfaction, activate amblyopia treatment mode and generate drive signals for controlling means of both optical elements to perform: (i) produce different optical power for dominant eye and predefined optical power for non-dominant eye, or (ii) produce predefined optical powers for both eyes whilst applying prism correction.

A method for designing an electrode pattern for obtaining an optical element, the method including: determining a refractive index profile for an active material included in the optical element; determining, based on the refractive index profile, a voltage profile indicative of a voltage distribution to be applied along the radius or optical axis of the active material to cause a variation in a refractive index of the active material corresponding to the refractive index profile; generating an electrode pattern, with a pair of end-terminals, constituting a set of segments associated with a set of resistances; and obtaining the optical element by depositing the electrode pattern on the active material for application of the voltage distribution along the radius or optical axis of the active material when a set of drive voltages are applied to the pair of end-terminals.

An eyewear apparatus includes lens(es); a frame; photo emitter(s); photo sensor(s); optical filter(s) arranged to allow light of only a predefined wavelength range to pass therethrough towards the photo sensor(s); and a processor. The processor is configured to: collect readings of a photocurrent of the photo sensor(s), whilst the photo emitter(s) is switched on; detect when the readings indicate a presence of a bioluminescence in the predefined wavelength range; and upon said detection, determine whether an eye drop has been administered onto an ocular surface of a user's eye, based on at least one of: an intensity of the bioluminescence, a change in the intensity, the eye drop comprising a bioluminescent dye that, when excited by light emitted by the photo emitter(s), emits the bioluminescence of the predefined wavelength range.

A method for monitoring attainment of flow state for activity by user. The method includes: receiving first sensor data (SD) from eye-tracking means, and second SD from heart rate monitoring device, wherein SDs are collected while user is engaged in activity; determining eye fixation frequency (EFF) and eye fixation percentage (EFP), and determining heart rate (HR) and heart rate variability (HRV) by processing first and second SDs, respectively; determining focus index (FI), based on EFF, EFP; determining stress index (SI), based on HR, HRV; determining flow index (Fl-I), based on difference between FI and SI; detecting that user has attained flow state for activity, when determined Fl-I is equal to or greater than predefined Fl-I for activity; receiving third SD from tracking means; and determining various poses, by processing third SD, that is utilized when determining FI, SI, and/or a fatigue index.

Disclosed is a nose pad assembly for measuring heart rate, said assembly including: a first cushioning element (FCE) and a second cushioning element (SCE), wherein a first inner surface of FCE and a second inner surface of SCE are capable of redirecting light, a light transmitting element arranged in FCE; a light sensing element arranged in SCE; and processor(s) arranged in a bridge portion of an optical apparatus in which said assembly is employed. The processor(s) is/are configured to: control light transmitting element to emit light, wherein the light passes through the user's nose towards light sensing element, and wherein at least a portion of the light is redirected by: the first inner surface, the second inner surface; and process sensor data to determine heart rate.