15 results about "Eyestrain" patented technology

A WS12-releasing contact lens and a method of making the same are described. The WS12-releasing contact lens comprises a polymeric lens body and WS12 releasably attached to the polymeric lens body. The amount of WS12 releasably attached to the polymeric lens body provides a basal tear fluid concentration of 2 μg / ml to 8 μg / ml of WS12 in a lens wearer after 30 minutes of lens wear. The WS12-releasing contact lens can be used to increase contact lens comfort, reduce eye strain, reduce the perception of dryness of the eye, and impart a pleasant, cool sensation in the lens wearer without causing stinging or burning upon insertion.

An electronic device may include a lens module having a tunable lens. The tunable lens may operate in multiple modes, such as a normal mode, a presbyopia mitigation mode, a near focus mode, and a negative power boosting mode. During operation, the electronic device may acquire data and adjust the tunable lens based on the acquired data. The tunable lens may switch from the normal mode to the presbyopia mitigation mode in response to determining that a nearby object is being viewed through the lens module. The tunable lens may switch from the normal mode to the negative power boosting mode in response to a low ambient light level and / or a high eyestrain level. The tunable lens can switch between modes over a transition period. When the tunable lens changes mode, the output device may notify the user.

Disclosed is a multifunctional screen protector designed to enhance the user experience by integrating multiple advanced features into a single, flexible product. The screen protector incorporates a magnifying lens sheet that provides uniform magnification across the display, aiding users with near-vision difficulties. Additionally, it features an anti-glare coating to improve screen visibility in bright environments, and a blue light-filtering layer to reduce eye strain caused by prolonged exposure to high-energy visible light. To protect user privacy, an embedded privacy filter restricts the viewing angle, making the screen content visible only to the user. The screen protector is adaptable to both flat and curved screens, ensuring broad compatibility with a variety of electronic devices, including smartphones, tablets, and monitors. This invention offers a comprehensive solution that significantly enhances visual clarity, device protection, and user comfort, addressing the limitations of existing screen protectors.

The application relates to the field of vision correction, in particular to a computer optometry instrument and an optometry method, which comprise a fixed base, the upper end of the fixed base is slidably connected with a movable base, the upper end of the movable base is fixedly connected with an instrument main body, the rear upper end of the instrument main body is fixedly connected with a control screen, the front upper end of the instrument main body is fixedly connected with a lens, the rear right side of the fixed base is inserted with a power supply, the front end of the fixed base is fixedly connected with a limiting frame, and the middle part of the limiting frame is movably connected with an electric lifting platform; the eyes of a patient are heated, so that the eyes of the patient are relaxed, the accuracy of optometry is improved, some special patients can be assisted to open their eyes, the optometry instrument can detect the eyeballs of the patients, the efficiency and the accuracy of optometry work are improved, and the vision degree of each patient can be measured in detail.

A virtual reality (VR) system can be implemented to identify potential eye strain issues through prolonged engagement. The system employs an electronic device featuring a high-resolution VR headset with integrated eye-tracking sensors. It generates a VR user interface corresponding to a three-dimensional virtual environment and renders it on the VR headset. Within this environment, the system presents a series of progressively challenging visual tasks. Throughout these tasks, the system continuously monitors the user's eye movements and behavior using the eye-tracking sensors. The collected data is then evaluated for indicators of eye strain, potentially allowing for early detection and intervention in cases of visual discomfort during extended VR use.

Systems and methods are provided that may be implemented to automatically and dynamically assess or analyze displayed image characteristics of a video display screen together with a current human user's eye ergonomics when viewing a video display screen, and then to automatically and dynamically adjust (e.g., alter or modify) the image characteristics displayed by the video display screen to correct or improve the current user's eye ergonomics and reduce or eliminate human user eye strain.

A controller for a bathtub lamp comprises an MCU module, an R2R network module, a DCDC module and an LED module which are electrically connected in sequence; the MCU chip is used for generating variable digital signals corresponding to different brightness levels required in different modes and generating, according to values of the digital signals corresponding to different brightness levels, binary codes which are parallelly output to control the on-off state of resistor pairs in corresponding R2R networks to adjust DCDC circuits to drive an output voltage of the LED module, and stepless change of the output voltage is realized by means of output capacitors of the DCDC circuits, such that light brightness changes more smoothly and continuously, output light is softer, and the technical problem of eye strain caused by harsh light resulting from the low frequency of most existing PWM signals and large dimming fluctuations is solved.

The invention belongs to the technical field of fermentation engineering, and particularly relates to a solid beverage for relieving visual fatigue and a preparation method and application thereof. The solid beverage capable of relieving visual fatigue is prepared from the following components in parts by mass: 0.04 to 0.08 part of fructus crataegi extract, 0.01 to 0.03 part of xanthophyll, 0.04 to 0.09 part of zeaxanthin, 1.0 to 1.5 parts of plant fermentation extract, 0.2 to 0.8 part of blueberry juice powder, 0.1 to 0.4 part of fructus momordicae powder and 1.5 to 2.0 parts of gamma-cyclodextrine. The solid beverage for relieving visual fatigue prepared by the invention is high in content of antioxidant active components, and has a remarkable effect on relieving eyestrain caused by long-term use of electronic equipment.

A virtual reality (VR) system can be implemented to evaluate visual discomfort in users with eye strain sensitivity. The system utilizes an electronic device equipped with a high-resolution VR headset and eye-tracking sensors. The system generates a VR user interface that simulates visually demanding tasks and renders this interface on the VR headset. Within this virtual environment, the system presents a series of interactive scenarios designed to potentially induce visual stress. Throughout these scenarios, the system continuously monitors the user's eye movements and behavior using the eye-tracking sensors. The collected data is then analyzed for indicators of eye strain and visual discomfort, potentially providing insights into individual susceptibility to visual stress and informing strategies for mitigating discomfort in VR and other visually demanding environments.

An example method of optimizing a display location for displaying augmented-reality (AR) content is provided. The method includes operations performed at an AR device having a lens display for displaying the AR content. The method includes determining, based on imaging data obtained about physical surroundings of the AR glasses, whether to present the AR content at an optimized display location of the lens of the AR device. The optimized display location is determined based on: (i) minimizing an occlusion factor, (ii) increasing depth-switching demands of the user, (iii) minimizing eye strain of the user, and (iv) optimizing an eyebox position of the AR content such that the amount of AR content subject to display clipping based on fitment factors of individual users is minimized. The method includes, when determining the physical surroundings satisfy one or more viewing criteria, causing display of the AR content at the optimized display location.

A photovoltaic photo-thermal lighting comprehensive utilization skylight comprises a plurality of rectangular openings formed in a roof, and each rectangular opening is provided with a skylight body. The skylight comprises a heat insulation lighting window vertically arranged on the south edge of the rectangular opening and further comprises a supporting inclined plate arranged on the north edge of the rectangular opening, and a photovoltaic panel is arranged on the outer surface of the supporting inclined plate. The skylight further comprises a light reflecting plate which is arranged on the inner side of the supporting inclined plate and is parallel to the supporting inclined plate. Distances are reserved between the light reflecting plate and the supporting inclined plate and between the light reflecting plate and the heat insulation lighting window. The adjusting plate is hinged to the upper edge of the heat insulation lighting window. Through reasonable arrangement of component structures, natural light can be evenly distributed to all corners in a room, natural light is effectively introduced, the indoor lighting quality is improved, eye fatigue is reduced, and the visual comfort degree is improved; meanwhile, a ventilation channel is adjusted through an adjusting plate according to indoor and outdoor temperature and illumination intensity, natural ventilation is enhanced through hot pressure difference, indoor and outdoor air exchange efficiency is enhanced, air quality is improved, and indoor refrigeration and heating energy consumption is further reduced.

X-ray images generated by a biopsy tissue handling device are selectively modified to emphasize regions of interest and de-emphasize or eliminate image regions that are distracting, impair viewing attention, and / or cause eye strain. An image processor performs an image mask based on the geometry of a portion of a specimen tray that includes a storage compartment having a tissue specimen. A compartment mask is performed on a portion of an X-ray image that depicts the storage compartment including the tissue specimen. The compartment mask boundary substantially corresponds to the outline of the compartment. A partial structure mask is performed on a portion of the X-ray image that depicts the specimen tray and a corresponding wall of the storage compartment. The partial structure mask boundary extends along a corresponding length and partially through the corresponding wall of the specimen tray.

The utility model discloses a liftable and adjustable electronic display screen relates to mechanical engineering technical field, including bottom plate, the top of bottom plate is provided with the support plate, two first sliding block's rear side is commonly provided with the connecting block, the inside slide coupling of connecting block right side has the second sliding block, the front side fixedly connected with first connecting plate of second sliding block, first connecting plate is fixedly connected with first limit post one side near arc column, every arc column's side end all is set up with a plurality of card slot, the rear side fixedly connected with third sliding block of second sliding block, the outside of limit rod is provided with the spring. Mechanism adopts mechanical drive principle, improves traditional liftable and adjustable electronic display screen, utilizes additional structure to improve traditional liftable and adjustable electronic display screen and promotes the viewing comfort of personnel, utilizes the angle of screen of adjusting mechanism and adjusts, prevents causing the eye fatigue of personnel, neck and back pain.

The utility model discloses a multipurpose learning lamp which comprises a lamp holder, a lamp holder is installed on the lamp holder, a main light source is installed at the end of the lamp holder, a circular tube part is arranged on the lamp holder, a rotating assembly is sleeved on the circular tube part in the circumferential direction, and the rotating assembly rotates in the circumferential direction with the axial direction of the circular tube part as the center. An auxiliary light source is detachably assembled on the side face of the rotating assembly, an electric connecting assembly is arranged in the rotating assembly, and the auxiliary light source is electrically connected with a main controller in the lamp holder through the electric connecting assembly. When the dual-light-source learning lamp is used, the main light source provides main light, the auxiliary light source provides ambient lighting, and the dual-light-source learning lamp is formed, so that the light and shade difference of light rays is reduced by supplementing light to the environment, and reduction of eyestrain of a user is facilitated; in addition, the auxiliary light source can be taken down and used independently according to requirements, for example, the auxiliary light source serves as a night lamp, and practicability and use flexibility of the table lamp are effectively improved.

To provide a device for preventing the lowering of eyesight and asthenopia of a user by using a display device such as a portable terminal.SOLUTION: A device for preventing the lowering of eyesight of the present invention is provided in a display device having a front camera provided on a surface side on which a display screen is present. The device for preventing the lowering of eyesight includes: a congestion state measuring device that measures a congestion state of eyes of a user who views the display screen of the display device; an alert unit that issues a predetermined alert; and an alert instruction determination unit that compares the congestion state measured by the congestion state measuring device with an alert congestion state stored in advance and instructs the alert unit to issue an alert when it is determined that a predetermined condition is satisfied.SELECTED DRAWING: Figure 2