47results about How to "Reduce eye strain" patented technology

A three-dimensional image display apparatus includes a light source and an optical system including a light modulation unit having pixels for generating a two-dimensional image by modulating light from the light source by the respective pixels and emitting a spatial frequency in the generated two-dimensional image along a diffraction angle corresponding to diffraction orders generated from the respective pixels, a Fourier transform image formation unit for performing Fourier transform on the spatial frequency in the two-dimensional image to generate Fourier transform images corresponding to the diffraction orders, a Fourier transform image selection unit for selecting a Fourier transform image corresponding to a desired diffraction order among the Fourier transform images, and a conjugate image formation unit for forming a conjugate image of the selected Fourier transform image, and further includes a semi-transmissive mirror for changing a light ray travelling direction emitted from the optical system.

The invention discloses a camera image resolution estimation system which comprises a camera module, a standard image, an upper computer, a resolution estimation module and a module data collecting module. The invention further discloses an estimation method of the camera image resolution estimation system. The estimation method comprises the steps that (1) the camera module is connected with the module data collecting module; (2) the module data collecting module is provided with a camera and a camera image is read into a cache area; (3) the camera image is transmitted to a memory of the resolution estimation module from the cache area of the module data collecting module through a data line; (4) if a camera resolution estimation value is larger than a set resolution threshold, the resolution estimation module sends the signal that the focus of the camera is adjusted to the required resolution degree; (5) the resolution estimation module estimates the resolution of the image, and the user adjusts the position of a lens according to a display result. The camera image resolution estimation system has the advantages of being intelligent, high in efficiency, high in accuracy and the like.

The invention relates to the technical field of electronic information and optical, electrical and mechanical integration, and provides an anti-myopia head wear type device which is capable of monitoring eye using conditions and warning a user to urge the user to use the eyes correctly when poor eye using conditions occur. The anti-myopia head wear type device aims to solve the problems that the user cannot monitor the brightness of an eye using environment, the stability of eye balls, an eye using distance and time for using the eyes in a short distance. According to the anti-myopia head wear type device, an eye using monitoring and warning device is embedded in a head wear piece (such as eye glasses, a tiara, a head ring, a head band and a cap), when the anti-myopia head wear type device is used, the anti-myopia head wear type device maintains a stable relation with the eyes, sensors are used for monitoring the eye using conditions, obtained information is operated through a central processing unit, when the eye using distance is too short, or time is too long, or light rays are too bright or too dark, or the eye balls are instable, warning signals are given out, through electro-optic conversion, electro-acoustic conversion and electro-mechanical conversion, light, sound and vibration are utilized to remind the user to correct, the user can use the eyes correctly, and the purposes of reducing eyestrain and preventing myopia are achieved.

Large number of animals and fowl are shielded against deleterious sun rays and heat by a transportable device equipped with a large sized canopy. The shielding device includes an elevated deploying unit which pivotally hinges canopy supporting arms for deployment to either an open shielding position or a closed position longitudinally aligned for highway transport by a wheeled vehicle.

A method for enhancing video display of a video surveillance system, comprises: a. receiving a first video image I_n−1 and a second video image I_n corresponding to a previous scan n−1 and a current scan n of the video surveillance system, b. determining a backwards displacement vector D_n from image I_n associating with scan n to image I_n−1 associated with scan n−1; c. determining a predicted image J_n+1 for scan n+1 based on the backward displacement vector D_n and on the image I_n corresponding to the current scan n. The method further comprises displaying an image based on the predicted image.

The invention relates to a blue-light-resistant resin lens of 1.60 in refractivity. The blue-light-resistant resin lens comprises a resin substrate of 1.60 in refractivity, a hardened film layer is dipcoated on the resin substrate, and a first SiO2 film layer, a ZrO2 film layer, a second SiO2 film layer, a Ti2O3 film layer, an In2O3 film layer and a third SiO2 film layer are sequentially deposited on the surface of the hardened film layer. The blue-light-resistant resin lens can filter 40-50% of blue light of 400-500nm in wavelength and can effectively filter blue light radiation, pricking and soreness of eyes can be reduced, eye dryness and eye fatigue can be reduced, and cataract and maculopathy can be prevented.

The invention discloses a vision correction negative-ion healthcare spectacle frame which comprises frames, a bridge frame, a framework, pile heads, legs and temples. Temple support plates and templesocket components are integrally formed to obtain the temples, intermediate plates sleeve the temple socket components and are connected with cover plates in a snap joint manner, guide holes are formed in the bottoms of the intermediate plates, the outer walls of sleeves are nested in the guide holes, heat conduction blocks are fixedly connected with the inner walls of the sleeves, the tops of theheat conduction blocks are butted to tourmaline powder filler layers, the intermediate plates are connected with the temple support plates by bolts, and heat conduction columns are fixedly connectedwith the temple support plates and are butted to healthcare adhesion layers. The vision correction negative-ion healthcare spectacle frame has the advantages that the vision correction negative-ion healthcare spectacle frame is simple and clear in structure, far infrared rays and negative ions can be released by graphene thin film layers and negative-ion thin film layers in the healthcare adhesionlayers, accordingly, eye prickling, soreness and swelling and eye dry can be reduced, eyestrain can be relieved, and excellent relief and treatment effects can be realized by the vision correction negative-ion healthcare spectacle frame for symptoms such as cataract, glaucoma, muscae volitantes, fetid inflammation, dim eyesight, migraine and asthenopia.

The invention discloses a health care pearl eyedrop. The eyedrop is prepared from, by weight, 30-40 parts of pearl powder, 10-20 parts of barbary wolfberry fruits, 10-20 parts of cassia seeds, 10-20 parts of flos eriocauli, 10-12 parts of Chinese magnoliavine fruits, 7-9 parts of plantain seeds, 5-7 parts of orange peel, 8-12 parts of radix ophiopogonis, 3-5 parts of radix polygonati officinalis,4-6 parts of radix angelicae sinensis, 7-9 parts of radix bupleuri, 10-20 parts of mulberry leaves, 10-20 parts of poria cocos, 8-12 parts of radix puerariae, 5-7 parts of taurine, 9-11 parts of borneol and 3-5 parts of antibiotics. According to the health care pearl eyedrop, natural Chinese herbal medicine is adopted as the raw material, preservatives or hormones or other substances harmful to the human body are not added, the eyedrop has the functions of nourishing the optic nerve, reducing asthenopia, removing eye dryness and improving the vision, and accordingly the aim of correcting pseudomyopia is achieved. The health care pearl eyedrop has extremely good effects on relieving eye aching pain, eye dryness and dim-sighted vision caused by work, internet surfing, learning, long-time driving, stay-up and the like.

The invention relates to a glass meter reading system based on machine vision, which includes an imaging system, an acquisition system and a processing system that are connected in sequence, wherein the imaging system adopts the structure that a light source is arranged between a condensing mirror and an objective, meanwhile, the condensing mirror, the light source and the objective are arranged on one optical axis, and a CCD (charge-coupled device) camera is arranged on the other side of the objective. The system provided by the invention adopts the design that the machine vision is combined with the tested meter, thereby not only improving the reading accuracy and reducing the error, but also greatly improving the working efficiency.

The present invention discloses an ophthalmic lens. The ophthalmic lens comprises: a plurality of first units for focusing an image at a position other than the retina of the eye to suppress the development of refractive error of the eye, wherein the first units have a first diopter, further comprises: a second unit for propagating light deviating from a straight line, the plurality of first units being connected by the second unit; a plurality of third units for correcting myopia, wherein the third units are formed as regions other than those formed as the first units and the second units, the diopter of the second units and the diopter of the third units are different from the diopter of the first units, and light passing through the second units and the third units acts on the retina to form phase difference. The method has the advantage of inhibiting myopia development.

The invention relates to the technical field of table lamps, in particular to a table lamp with a detachable outer cover and an illuminating system. The table lamp with the detachable outer cover comprises a lamp base, a lamp cap and a lamp pole used for connecting the lamp base with the lamp cap. The lamp cap comprises a lampshade and a shield plate arranged on an opening of the lampshade and used for mounting of a quantum dot LED light source. The shield plate is in an arc shape. The light emitting face of a lamp band faces the inner wall of the lampshade, and a light path irradiates the inner wall of the lampshade and is reflected out through the inner wall of the lampshade. The illuminating effect is better after reflecting, and light spots and dazzle are avoided; light is soft, natural and high in developing and is close to sunlight; the eyestrain of users is reduced; and best illumination is provided for the users, dazzle is avoided, and the high light efficiency is guaranteed. The lampshade comprises an inner cover and the first outer cover, and the first outer cover is detachably connected with the inner cover and can be arranged to be a decoration plate. Interestingness can be improved, and the fatigue of the users in longtime work can be eliminated. The illuminating system comprises a master controller and table lamps with detachable outer covers and has the above beneficial effects compared with the prior art.

The invention relates to the technical field of table lamps, in particular to a table lamp and an illuminating system. The table lamp comprises a lamp base, a lamp cap and a lamp pole used for connecting the lamp base with the lamp cap. The lamp cap comprises a lampshade and a shield plate arranged on an opening of the lampshade and used for mounting of a quantum dot LED light source. The shield plate is in a ring shape. The quantum dot LED light source is mounted on the shield plate. The light emitting face of the quantum dot LED light source faces the inner wall of the lampshade, and a light path of the quantum dot LED light source irradiates the inner wall of the lampshade and is reflected out through the inner wall of the lampshade for illuminating. The light path is better in illuminating effect after being reflected by the lampshade, and light spots and dazzle are avoided; light reflected by the lampshade is softer and more natural and is close to sunlight; the eyestrain of users is reduced; and best illumination is provided for the users, the eyestrain of the users is reduced, and therefore dazzle is avoided, the high light efficiency is guaranteed, and the color rendering index can be increased. The illuminating system comprises a master controller and table lamps and has the above beneficial effects compared with the prior art.

The invention provides a device for splicing and recreating a circuit board. The device comprises a frame, an operation platform, a CCD vision system, a circuit board splicing movement module and a displacement mechanism. The operation platform is arranged on the frame. The circuit board splicing movement module comprises a fixed support platform and an adjustable splicing platform. The displacement mechanism includes an X-axis moving sliding rail and a Y-axis moving sliding rail. The CCD vision system is arranged on X-axis moving sliding rail and moves back and forth along the X-axis moving sliding rail. The device is mainly applicable to the circuit board processing and production industry, the splicing position of the circuit board can be automatically adjusted according to measurementinformation, and problems of low efficiency, unstable quality and potential human injury caused by a current manual operation mode can be solved well.