34 results about "Eye Protective Devices" patented technology

The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a diameter less than the wavelength of light. In one embodiment, the surface elements can be an array of anisotropic apertures and the films can act as a polarizer. The disclosed devices can also include a material having a variable refractive index substantially adjacent to the metal film. For example, the refractive index of the adjacent material can vary according to some characteristic of the light incident to the device, for instance, the intensity or the angle of incidence of the light. In this embodiment, resonant coupling of incident light with the SPP, and hence transmittivity of the device, can depend upon the nature of incident light. The disclosed devices can be useful in, for example, remote polarizers, polarization mode dispersion, isolators, multi-color displays, switches, such as can be controlled according to incident sunlight, or optical filters, such as for eye protection devices, filtering out possibly harmful light.

A fog-resistant structure and a protective device for eyes is configured such that a transparent conductive film is formed on one surface of a lens or shield, a linear electrode is provided on upper and lower portions of the surface of the lens or shield so that each of a central region and opposite side regions of the lens or shield has substantially equal spacing between the upper and lower linear electrodes. Thus each region of the lens or shield has no difference in temperature without regulating power supplied to the transparent conductive film, thereby eliminating wasted power consumption and allowing even a structure using a battery as the power supply to have much longer available time.

An eye protection apparatus includes a selectively darkenable element, such as a liquid crystal panel, and a controller that causes transmission of a darken signal that causes the selectively darkenable element to darken in conjunction with an emission of light, such as intense diffuse light that is used in some medical procedures. Protection against both laser light and diffuse light may be provided in the same eye protection apparatus. The darken signal may be transmitted prior to the emission of the diffuse light, and cause the selectively darkenable element to achieve a darkened state prior to emission of the diffuse light.

A protective device for eyes, for example, goggles of a shield, includes a double lens member, a frame member and a face fixation member. The double lens member includes a front lens, a back lens and a gasket. The front lens and the back lens are made of polycarbonate resins, polyurethane resins, polyester resins or polyamide resins. The front lens and the back lens are disposed in parallel with the gasket therebetween in order to form a space surrounded with the front lens, the back lens and the gasket. This device is excellent in the antifogging property in the double lens.

Hinged receivers are provided in the space above the wearer's ears on either side of a helmet, and protective eyewear received within the receivers is accommodated for stowage in a space toward or at the front of the helmet.

An eye protection device (1) includes two internally concave and externally convex protective shells (2, 3), which cover the eyes and the eyelids of a wearing person and are connected by an elastic wire bow (8), whose ends (6, 7) are attached to a projection (4, 5) on the protective shells (2, 3) at a distance from their outer edge (2c, 3c). The eye protection device no longer has the sharp-edged mechanical pressure of the outer edge of the protective shells, which feels unpleasant, and nonetheless ensures a secure seal of the outer edge of the protective shells in relation to the facial skin. Each protective shell (2, 3) is completely enclosed on its outer edge (2c, 3c) by an opaque, entropy-elastic ring (9, 10) having high heat resistance and the band-shaped holding unit (14) is provided with an adjustment and locking device (15), using which the untensioned length of the holding unit (14) may be lengthened or shortened rapidly, the holding unit (14) forming a joint spring (9, 10, 14) in connection with the entropy-elastic rings (9, 10) of the protective shells (2, 3), whose spring pre-tension is adapted to the mechanical pressure compatibility of the wearing person via the adjustment and locking device (15).

The invention discloses light-controlled liquid crystal eyeglasses, which comprises liquid crystal lenses (1) and a bracket (2) for fixing the lenses, wherein a control circuit is connected with the liquid crystal lenses and is connected in series with a power supply, a switch (5), a photo-resistor (6) and a sliding variable resistor (7); and one end of variable resistor is connected with one pole of each liquid crystal lens, and the other end of the variable resistor is connected with the other pole of the liquid crystal lens through a crystal diode (11). The light-controlled liquid crystal eyeglasses can automatically shade bright light to protect eyes of a user, can be taken as an eye protection device in aspects of electric welding, smelting, firing, military and the like, have low cost and are easy to make.

An auto darkening eye protection device including a shutter assembly, a light sensing circuit, a control circuit and a power source. The shutter assembly is adjustable to a plurality of shade levels. The light sensing circuit senses light from a welding arc and providing an output indicative of the shade level at which the shutter assembly should be operated, the light sensing circuit includes a phototransistor operative to receive the light from the welding arc and produce a phototransistor output representative thereof. The phototransistor output from the phototransistor is used to form the output of the light sensing circuit. The phototransistor is configured for surface mount and has an external base connection connected to the base of the phototransistor. The control circuit is configured to receive the output from the light sensing circuit and provide a drive signal to the shutter assembly responsive to said output. The drive signal is operative to drive the shutter assembly to one of said plurality of shade levels. The power source is coupled to the light sensing circuit and control circuit for powering same. The present invention provides reduced power consumption, improved attenuation of low intensity light signals, a sharp rise time from the phototransistor in response to high intensity light, and allows implementation into a smaller sleeker eye protection device.

A system for temporarily disabling selected occupants of an area includes one or more flashing units and one or more eye protection units. Each flashing unit includes a light source that generates flashes of light sufficiently bright to temporarily disable people who see the flashes. Each eye protection unit includes a shutter that blocks light while the flashes are being generated. Each flashing unit and each eye protection unit stores data that specifies when the flashes will occur, and are synchronized with each other to ensure that the shutters are closed during each flash. A controller in each flashing unit and a controller in each eye protection unit is configured to change, at coordinated times, the data that specifies when the flashes will occur. In some embodiments, the light source comprises LEDs and the flashing units have heat sinks configured to absorb heat generated by the LEDs.

An eye protection device a first covering sheet, a protection sheet, and a second covering sheet. The first covering sheet has a first supporting edge with a containment slot and a first opening disposed on the first supporting edge. The protection sheet is disposed in the containment slot and has a non-transparent sheet and an axial aperture provided in the sheet. The second covering sheet has a second supporting edge and a second opening provided on the second supporting edge. The second supporting edge overlaps the first supporting edge, and the first and second supporting edges sandwich the protection sheet in the containment slot.

The present invention seeks to provide an eye protection device that can be removably attached to a standard sports helmet. The device is provided with attachment arms that are configured for connection to existing attachment points on standard helmets.

The present invention relates to an eye protection cover; and in particular, to an eye protection cover that protects the eye during medical or health care treatment procedures. The cover is comprised of a heat resistant material, conforms in three dimensions to the shape of the eye, and includes a handle for ease of insertion and removal.

An eye-protection apparatus, in particular retina-protection apparatus, for a surgical microscope, having an illumination beam that defines an illuminated field for an object plane (14) and having an optical element (4) in the illumination beam path, wherein the optical element is embodied in such a way that it deflects light away from a central region or a decentral region of the illuminated field.

The invention relates to the technical field of protection equipment, and discloses an eye protection device for camera shooting. The device comprises two frame bodies and a connecting block A; the two frame bodies are in left-right correspondence, and the corresponding surfaces of the two frame bodies are fixedly connected with the left surface and the right surface of the connecting block A respectively; the bottom surface of the connecting block A is fixedly connected with a fixing plate; transmission equipment is fixedly connected with the end, away from the connecting block A, of the fixing plate and electrically connected with a battery bin, connecting rods are fixedly connected with transmission shafts at the two ends of the transmission equipment, connecting blocks B are arranged at the positions, corresponding to the outer walls of the frame bodies, of the connecting rods, and sunglasses lenses are fixedly connected with the bottom faces of the connecting blocks B. Through thearrangement of the sunglasses lenses, a sensing mechanism is used for sensing the light intensity of the area faced by a user and automatically switching the state of covering or separating from theframe body area; the eyes of the user are protected in the area with strong light, the user can conveniently observe in the area with weak light, the process is automatic, the operation is convenient,and the shooting efficiency is favorably improved.

The present invention relates to the interworking controlling method of an electronic eye protection apparatus for welding and a smartphone, or more specifically, it relates to the interworking controlling method of an electronic eye protection apparatus for welding and a smartphone, which enables remote management from a smartphone by interworking history state data on utilization, operation, settings, failure of the electronic eye protection apparatus for welding, and which enables location searching and anti-theft function such as password setting of electronic eye protection apparatus for welding with a smartphone.

The invention discloses an eye-protective device for electrowelding technology service. The device comprises a lower side rain sheltering device, LED energy-saving bulbs, lens, antifogging devices, sunglasses, rain sheltering frames, an upper side rain shelter, connecting rotating shafts, a battery groove, a glasses cloth groove, a button battery, glasses cloth, spectacle frames, telescopic shafts, telescopic grooves, hooks and small support rods; the middle front end of the spectacle frames is provided with the battery groove, the inner cavity of the battery groove is provided with the buttonbattery, the middle end of the spectacle frames is provided with the glasses cloth groove, the spectacle frames are connected with the hooks through telescopic grooves, the front ends of the spectacle frames are connected with the lower side rain sheltering device through the connecting rotating shafts, the four sides of the lower side rain sheltering device are provided with the LED energy-saving bulbs, the four sides of the lens are provided with the antifogging devices, the upper ends of the lens are provided with the sunglasses, the spectacle frames are connected with the upper side rainshelter at the upper end through the rain sheltering frames; and the material of the spectacle frames is polyethylene.

A screen of an electronic tool includes a screen substrate and an eye protection arrangement including a plurality of blue light absorbing membranes and a plurality of light diffusion membranes alternating with the blue light absorbing membranes provided on a surface of the screen of the electronic tool. The blue light absorbing membranes are arranged for blocking blue light penetrating through the screen and the light diffusion membranes are arranged for enhancing a rigidity and light transmission of the screen.