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59 results about "Short sight" patented technology

Video glasses and method for adjusting focal length of video glasses

ActiveCN103487940ARealize adjusting the focal lengthImprove experienceOptical elementsUses eyeglassesControl signal
The invention discloses a pair of video glasses. The pair of the video glasses comprises a glasses body and further comprises an input module, a micro processor and a control module, wherein the input module is arranged on the glasses body and used for vision information input of a user; the micro processor is connected with the input module and is used for identifying the vision information input by the user and outputting a control signal to the control module according to the corresponding relation of the preset vision information and the distance between lenses of the video glasses and the eyes of a person; the control module is connected with the signal output end of the micro processor and used for correspondingly controlling the distance between the left lens and/or the right lens of the video glasses and the eyes of the person according to the received control signal. The invention further discloses a method for adjusting the focal length of the video glasses. Due to the fact that the distance between the left lens and/or the right lens and the eyes of the person can be controlled according to the specific short-sighted or far-sighted vision information of the left eye and the right eye, harm to the eyes caused by inaccurate focal length adjustment is reduced, protection for the eyes of users is facilitated, and better experience can be brought for the users.
Owner:XIAN TCL SOFTWARE DEV

System for preventing and rectifying short sight

The invention discloses a system for preventing and rectifying short sight. The system comprises a mobile terminal and a virtual reality helmet. The virtual reality helmet comprises two optical members, and each optical member is corresponding to one eye. The mobile terminal comprises a display screen and a processor. A processor is used for operating a 3D application program so as to generate virtual reality content and converting the virtual reality content into two pieces of virtual reality content and then outputting the two pieces of virtual reality content into the display screen. The display screen is used for outputting the two pieces of virtual reality content on the same screen, and each piece of virtual reality content is corresponding to one optical member. The optical members are used for optically processing the virtual reality content going into the scope of human eyes so as to form virtual images of the virtual reality content. The mobile terminal symmetrically outputs the two pieces of stereo virtual reality content on the same screen. Therefore, the stereo effect is good. Besides, since the system can be realized simply through the mobile terminal and the virtual reality helmet, the application is convenient, the carrying is easy, and the application scope is wide.
Owner:SHENZHEN YIZHIJIAN TECH CO LTD

Vision training instrument capable of regulating and controlling stimulating light sources and implementation method of vision training device

InactiveCN102038596APromotes nerve signal transmissionEye exercisersControl systemRetina
The invention discloses a vision training instrument capable of regulating and controlling stimulating light sources and an implementation method of the vision training instrument. The vision training instrument comprises a stimulating light source providing device, a display screen moving device and a center control system, wherein the stimulating light source providing device comprises a plurality of independent polygon display screens; the display screen moving device comprises a frame and multiple retractor devices, and the retractor devices are fixed on the frame; each display screen is fixed on the corresponding retractor device; the display screens are mutually embedded to be spliced to form a near hemispherical display structure; the retractor devices are used for controlling the movement of the display screens; the center control system is connected with the stimulating light source providing device and the display screen moving device; the stimulating light source providing device is used for providing the stimulating light sources; and the center control system is used for regulating and controlling the information of the stimulating light sources sent by the display screens. By using the vision training instrument, retinas of human eyes at different regions are pertinently stimulated, thereby achieving the functions of controlling the increment of short sight, controlling axix oxuli to elongate and promoting the transfer of a retina nerve signal.
Owner:ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV

Device and method of adjustment and control of pressure of carbonization chamber in coking process of large-size coke oven

The invention relates to a device and a method of adjustment and control of pressure of a carbonization chamber in a coking process of a large-size coke oven. The device includes a lifting tube cover control device, an ammonia water injection device, a carbonization chamber pressure detection device, a pressure regulating device, a mathematic modeling device and a control device. The mathematic modeling device is used for establishing a dynamic mathematic model of pressure control of the carbonization chamber by means of mechanism analysis with short-sight treatment according to coking time of the coke oven and pressure characters of the carbonization chamber, wherein the whole coking process is divided into several steps and a target preset value of pressure in each step is obtained. The carbonization chamber pressure detection device detects and collects the pressure data in the carbonization chamber. The control device compares an actual coking time with a target coking time and then regulates and controls the pressure of the carbonization chamber by outputting the pressure preset value in each step as a pressure regulating target value of one carbonization chamber to the pressure regulating device. The device is high in production automation degree, can greatly increase production efficiency and greatly reduce labor cost.
Owner:河南平煤神马首山化工科技有限公司 +1

VR (virtual reality) glasses suitable for short-sighted users

The invention relates to VR (virtual reality) glasses suitable for short-sighted users. The VR glasses suitable for the short-sighted users comprise a main body, a fixed belt and two lenses, and alsocomprises an adjusting mechanism and a cleaning mechanism; the adjusting mechanism comprises a power assembly, at least two second guide rods and at least two telescopic assemblies; each telescopic assembly comprises a third connecting rod, a spring, a fourth sliding block, a sliding block, a second connecting rod, two first connecting rods, two second sliding blocks and two concave lenses; and the cleaning mechanism comprises an air cylinder, a first guide rod, two first transmission rods, two cleaning brushes, two second transmission rods and two first sliding blocks. In the VR glasses suitable for the short-sighted users, the short-sighted users can control the superposing number of the concave lenses through the adjusting mechanism, so that glasses strength correction is realized and the film watching definition of the short-sighted users is improved; and dust on the lenses can be cleaned through the cleaning mechanism, so that the cleanliness of the lenses is improved and the filmwatching definition of the short-sighted users is improved.
Owner:NANJING ZHONGSHAN VIRTUAL REALITY TECH RES INST CO LTD

Anti-myopia gesture-correction multifunctional desk

The invention relates to a multifunctional desk which can prevent short sight and correct posture, can not only be used in the classroom of primary and secondary school students, but also can be used in doing homework at home. The multifunctional desk which can prevent short sight and correct posture comprises table legs, a table belly and a desktop which is divided into three parts, wherein, the middle part is a fixing face which is fixed at the central position above the table belly; the active surfaces at two sides are movably connected with the fixing surface, and can rotate around a connecting part thereof; the lower surface of the active surface which is away from the body is provided with a hanging ring; a support rod is arranged on the table belly corresponding to the hanging ring; the supporting rod is provided with a block hook; the block hook, the support rod and the hanging ring coordinate to work; and the angle between the active surface which is away from the body and the horizontal surface is adjusted according to the needs. As the books are placed on the active surface which is away from the body, students do not bow heads and bend waists when in reading and writing. By adjusting the angle between the active surface which is away from the body and the horizontal surface according to the needs, the function of prevent short sight and humpback can be achieved.
Owner:马瑞雪

Method for simulating erosion acceleration test of high-strength aluminum alloys in industrial atmosphere environments

The invention discloses a method for simulating erosion acceleration test of high-strength aluminum alloys in industrial-marine atmosphere environments, belonging to the technical field of simulation of exfoliation corrosion of high-strength aluminum alloys. The method comprises the following steps: firstly preprocessing samples, putting the preprocessed samples into an electrolyte solution to perform constant-potential pre-polarization, carrying out polarization and then ultrasonically washing the samples, putting the samples washed ultrasonically in a dipping solution to dip for a period of time, subsequently putting the samples in environment with relative humidity and temperature and analyzing exfoliation corrosion depth; selecting polarization time, contents of Na2SO4 and NaCl in the dipping solution, the temperature and the relative humidity and simulating the exfoliation corrosion process of the high-strength aluminum alloys in the industrial-marine atmosphere environments. The method is capable of researching the exfoliation corrosion rules and principles of the high-strength aluminum alloys in the industrial-marine atmosphere environments, good in simulation and capable of speculating the result of outdoor long-term exposure exfoliation corrosion test according to the result of simulation of the acceleration test of the laboratory in short sight.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Myopia short distance eyesight testing device

The invention discloses a myopia short distance eyesight testing device. The myopia short distance eyesight testing device comprises a pedestal and a pan/tilt; the top surface of the pedestal is connected to the pan/tilt; the pan/tilt comprises a sliding platform, a pan/tilt base, a folding platform frame and a telescopic platform frame; the bottom of the sliding platform is connected to the pedestal; the top surface of the sliding platform is connected to the base of the pan/tilt; the folding platform frame is arranged inside the base of the pan/tilt; and the top of the folding platform is connected to the telescopic platform. The myopia short distance eyesight testing device can conveniently regulate the distance between an electronic device like a flat computer and a pair of glasses, provides convenience to testing a short distance eyesight of the myopia, provides convenience to carrying and detection, can be connected to a tripod to test a far end eyesight of the myopia during a certain distance, and is easy to use and install and easy to produce. The myopia short distance eyesight testing device can be connected to a wireless control terminal through a wireless communication device, provides convenience to remote operation and increases short distance eyesight tests of the myopia eyesight.
Owner:SHENZHEN BUXU TECH CO LTD
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