Moosedog Oy

Disclosed is an adaptive eyewear device (100) for reducing eye strain, the adaptive eyewear device comprising: an eye-tracking sensor (102A, 102B) operable to monitor the user's gaze and measure a focus distance; a variable-focus lens (110A, 110B) operable to adjust diopter power based on the measured focus distance; a timer (112) operable to track a cumulative duration for which the focus distance remains within a predefined near-work distance range during a predefined time period; and a controller (114) operatively connected to the eye-tracking sensor, the variable-focus lens, and the timer, wherein the controller is operable to: increase the diopter power of the variable-focus lens when the measured focus distance remains within the predefined near-work distance range for at least the predefined time period and decrease the diopter power of the variable-focus lens when the measured focus distance exceeds the predefined near-work distance range or when near work ceases.

A display device (100) comprises a laser light source(s), an active panel (104) comprising a liquid crystal (LC) layer (120), and light guide(s) (106). The light guide(s) comprise a light outlet (116) comprising a plurality of exit portions (112), to send the light rays towards the active panel. The light guide(s) are controllable to sequentially guide light rays emitted by the laser light source(s) towards different exit portions of the light outlet. A pixel (or a group of pixels) of an image is displayed, by: (i) determining a corresponding exit portion of the light outlet, (ii) controlling the laser light source(s) to emit the light rays; (iii) controlling the light guide(s) to guide the light rays towards the corresponding exit portion from which the light rays exit towards a corresponding LC cell (110a) (or a corresponding group of LC cells) of the LC layer; and (iv) controlling the corresponding LC cell to modulate an intensity of the light rays passing therethrough.

Disclosed is system (100) for controlling temperature of display system (102) comprising display (104, 400) and optical substrate (106) configured for autostereoscopic viewing, system comprising: heat transfer element (108) arranged at least in relation to optical substrate, heat transfer element is visually imperceptible when system is in use; heat exchanger (110) thermally coupled to heat transfer element; first temperature sensor (112) operable to measure first temperature of display system at first region; and processor (114) configured to: receive first temperature, from first temperature sensor; detect when first temperature lies outside predefined operating temperature range of display system; and control heat exchanger to bring first temperature within predefined operating temperature range, via exchange of thermal energy between heat exchanger and heat transfer element, upon said detection.

Disclosed is a thruster unit (100) for use as a main propulsion in a water vessel, comprising a rotatable thruster housing (130); a rotating mechanism (140) to rotate the rotatable thruster housing; and a tilt mechanism (110) comprising a cardan shaft (112), the tilt mechanism mechanically connected to the rotatable thruster housing to tilt the thruster housing, wherein the rotatable thruster housing comprises a first propeller (132) with a first rotating axle (134), and a second propeller (138) with a second rotating axle (136), the first propeller and second propeller being contra-rotating relative to each other, and the tilt mechanism is a variable tilt mechanism configured to control a tilt angle of the rotatable thruster housing within a range of 0 to 12 degrees based on the operational mode of the thruster unit.Disclosed is also a double-ended water vessel.

A display device (100, 202) comprises laser light sources (102) of different colours and at least one light guide (104). The at least one light guide comprises a light outlet (110) comprising a plurality of exit portions (112), and is controllable to sequentially guide light rays emitted by the laser light sources towards different exit portions of the light outlet. A pixel of an image is displayed by: (i) determining a corresponding exit portion, based on a pixel location of the pixel in the image; (ii) controlling the laser light sources to emit light rays having a colour and an intensity representative of the pixel, based on intensity values of different colour components of the pixel; and (iii) controlling the at least one light guide to guide said light rays towards the corresponding exit portion from which the light rays exit.

Information pertaining to parking areas (112a-c) and mobile remote-controlled battery charging device(s) (MRCBCDs) (114a-e), is received at a user device (108, 204). The MRCBCDs is/are available to be employed for charging a battery (102) of a vehicle (104), and is/are controlled using control unit (110, 206). Selection of given MRCBCD (114c) is detected at user device. The given MRCBCD is selected to be employed for charging the battery of the vehicle. A first communication link is established between user device and a given control unit (110). A second communication link is established between the given control unit and the given MRCBCD. A digital twin of a real-world environment (100) and information pertaining to current location of given MRCBCD and a location of a given parking area (112b), are determined. The given MRCBCD is navigated from its current location to a location of given parking area, based on routing information.

A digital twin of an operational area (110) is created. Information pertaining to an initial position and a target position of a vehicle (102, 202, 302, 402a-c) is received. Routing information of the vehicle is determined. The routing information and the digital twin are sent to an operator unit (106). The vehicle is navigated based on command(s) received from the operator unit. A safety zone (114) for the vehicle is determined. Information pertaining to a network latency in a communication network (112) is obtained. It is detected when a change in the network latency exceeds a predetermined threshold latency. When this happens, a size of the safety zone is increased. It is detected when a position of an object (116) present in the operational area lies within the safety zone. When this happen, a speed of the vehicle is decreased.

Disclosed is an optical apparatus (102) comprising first active optical element (AOE) (104) for first eye (106) of user; eye-tracking means (108); and processor(s) (110) configured to: process eye-tracking data for determining gaze directions of both eyes; determine given optical depth (D) of gaze point at which user is gazing; detect when given criterion is satisfied, such satisfaction being when gaze directions of both eyes at another optical depth is different from given optical depth of gaze point, and/or user input for activating convergence insufficiency correction mode (CICM) is received; and when it is detected that given criterion is satisfied, activate CICM; determine first prismatic correction (PC) to be applied by first AOE; and generate first drive signal to drive first AOE for applying first PC, to optically shift light (202) incident thereupon.

A display device (101) comprises a backlight unit (102) that is controllable to switch between lights of different colours, and an active panel (104) comprising a liquid crystal (LC) layer (108), a linear polarizer (110), and a drive circuit (112). Sub-images of an image are displayed by employing temporal multiplexing. Different sets of drive signals are generated for respective sub-images, based on a predefined sequence in which the sub-images are to be displayed. For each sub-image, a set of drive signals is generated to individually control LC cells of the LC layer (108), based on intensity values of pixels in the sub-image. The LC cells are controlled individually, via the drive circuit, using the different sets of drive signals according to the predefined sequence, whilst controlling the backlight unit to switch between lights of different colours according to the predefined sequence in which the sub-images are to be displayed.

A system comprises a display device (102) that comprises a light-emitting unit (104) having red light sources, green light sources and blue light sources that are employed to respectively emit red light, green light and blue light of certain wavelengths, and a colour filter array (106) arranged on an optical path of the light-emitting unit, the colour filter array comprising red, green and blue colour filters. A semi-reflective surface (130) of an optical combiner (124) of the system has a multi-band reflective coating that is configured to selectively reflect the red light, the green light and the blue light of these certain wavelengths. An image, generated or retrieved by an at least one processor (108) of the system, is displayed via the display device for producing a synthetic light field (132). The optical combiner is employed to selectively reflect the synthetic light field towards eyes of user(s), whilst optically combining a real-world light field (126) with the synthetic light field.