12 results about "Retinal stimulation" patented technology

There is disclosed a method and system for retinal stimulation and retinal signal data collection. The system comprises a housing. The housing supports one or more light sources that are configured to expose a retina of an eye of an individual to a flash of light. The housing supports a spectrometer that is configured to record a light spectrum and an intensity of the flash of light. The housing supports a camera configured to capture image data of the eye while exposed to the flash of light.

The present invention relates to an apparatus (110) and a method (210) configured to determine a choroidal topography (218) on a region (114, 114') of the retina (116) of a human eye (117), and to the use of the apparatus (110) for determining the effect of at least one ophthalmic lens design on the choroidal topography (218). In this document, the device (110) includes: - at least two separate displays (122, 122'), each configured to provide retinal stimulation (112, 112'), thereby providing two independent retinal stimuli (112, 112'); - at least two optical transmission elements, including a first optical transmission element and a second optical transmission element, each configured to project at least one of the retinal stimulation (112, 112') or a phase map onto a region of the retina of a human eye, wherein the phase map includes a modified retinal stimulation; - a measuring device (142) for capturing a human eye by using reflected light received from a region (114, 114') on the retina (116) of the human eye (117). (117) Choroidal topography (218) on region (114, 114') of retina (116); - Optical filter (152) configured to separate reflected light received from region (114, 114') of retina (116) of human eye (117) from phase map of region (114, 114') of retina (116) of human eye (117), wherein the second optical transmission element is further configured to simultaneously project each of the at least two separate phase maps at different retinal eccentricities onto each of at least two separate regions (134, 134') of retina (116) of human eye (117), wherein these separate regions (134, 134') include peripheral region and foveal region of retina (116) of human eye (117).

An apparatus and a method for determining a choroidal topography over a region on a retina of an eye of a person are disclosed. The apparatus is also used to determine an effect of an ophthalmic lens design on the choroidal topography. The apparatus includes two individual displays, two optical transfer elements, a measuring device, and an optical filter. The displays provide a retinal stimulus and the optical transfer elements projects the retinal stimulus or a phase map to a region on a retina. The phase map contains a modified retinal stimulus. The measuring device images a choroidal topography over the region on the retina by capturing reflected light. The optical filter separates the reflected light from the projected phase map. Further, the second optical transfer element simultaneously projects the individual phase maps at a different retinal eccentricity to a peripheral region and a foveal region of the retina.

The present invention relates to a device (110) and a method (210) configured to determine a choroidal topography (218) on a region (114, 114 ') on a retina (116) of an eye (117) of a person, and to the use of the device (110) for determining an effect of at least one ophthalmic lens design on a choroidal topography (218). Herein, the device (110) comprises:-at least two separate displays (122, 122 ') each configured to provide a retinal stimulus (112, 112'), thereby providing two separate retinal stimulus (112, 112 '),-at least two optical delivery elements comprising a first optical delivery element and a second optical delivery element, the at least two optical delivery elements are each configured for projecting at least one of a retinal stimulus (112, 112 ') or a phase map onto a region on a retina of an eye of the person, where the phase map comprises a modified retinal stimulus; -a measurement device (142) for capturing a choroidal topography (218) on a region (114, 114 ') on the retina (116) of the person's eye (117) by using reflected light received from the region (114, 114') on the retina (116) of the person's eye (117); -an optical filter (152) configured for separating reflected light received from a region (114, 114 ') on the retina (116) of the person's eye (117) from a phase map projected onto the region (114, 114') on the retina of the person's eye, the second optical transfer element is further configured to project each of the at least two individual phase maps simultaneously, respectively, onto each of at least two individual regions (134, 134 ') on a retina (116) of a person's eye (117) with a different retinal eccentricity, where the individual regions (134, 134') are located in the at least two individual phase maps. 134 ') includes a peripheral region and a foveal region on a retina (116) of a person's eye (117).

There is disclosed a method and system for retinal stimulation and retinal signal data collection. The system comprises a housing. The housing supports one or more light sources that are configured to expose a retina of an eye of an individual to a flash of light. The housing supports a spectrometer that is configured to record a light spectrum and an intensity of the flash of light. The housing supports a camera configured to capture image data of the eye while exposed to the flash of light.

An apparatus and a method for determining a choroidal topography over a region on a retina of an eye of a person are disclosed. The apparatus is also used to determine an effect of an ophthalmic lens design on the choroidal topography. The apparatus includes two individual displays, two optical transfer elements, a measuring device, and an optical filter. The displays provide a retinal stimulus and the optical transfer elements projects the retinal stimulus or a phase map to a region on a retina. The phase map contains a modified retinal stimulus. The measuring device images a choroidal topography over the region on the retina by capturing reflected light. The optical filter separates the reflected light from the projected phase map. Further, the second optical transfer element simultaneously projects the individual phase maps at a different retinal eccentricity to a peripheral region and a foveal region of the retina.

A balloon type retinal stimulation device includes: a substrate unit having an insertion portion provided to be inserted into an eyeball; and a stimulation unit that is provided at one or both of one and the other surfaces of the substrate unit. The insertion portion is provided to be expandable and contractible as a fluid is injected into and discharged from an inside of the injection portion. When the insertion portion expands, one surface of the insertion portion is deformed to match a shape of the retina such that the stimulation unit is brought into close contact with the retina on which an image is formed, and the other surface of the insertion portion comes into close contact with an inner surface of the eyeball that is not a region of retina on which an image is formed, to support the insertion portion that is in contact with the region of retina on which an image is formed.

Photovoltaic retinal prosthesis is provided with optically configurable confinement of electrical field. A video stream is projected onto a retinal implant. An array of photovoltaic pixels is configured to provide retinal stimulus responsive to the video stream. The photovoltaic pixels have a common return electrode. Each pixel has an active electrode that is coupled to retinal tissue via a capacitive interface or a faradaic interface. Each pixel includes photodiode(s) connected in series between the common return electrode and the corresponding active electrode. The projected video stream is configured based on a source video stream such that one or more pixels of the retinal implant that will be dark in a next frame of the projected video stream are optically preconditioned (pre-charged) by the projected video stream during the previous frame to become sufficiently conductive to act as transient local return electrodes during the next frame of the projected video stream.

The present application relates to the technical field of medical devices for stimulation, and is related to implantable stimulators. Provided are a magnetic-attraction artificial retina and a manufacturing method therefor. The artificial retina comprises a retinal stimulator and an auxiliary positioner. The retina stimulator comprises an inner magnetic component and an electrode part. The inner magnetic component is arranged on the inner side of the electrode part. The auxiliary positioner comprises an outer magnetic component and a positioner housing. The positioner housing wraps the outer magnetic component, and a curved protrusion is formed on the surface, which is used for being arranged proximal to the eyeball, of the end of the positioner housing that wraps the outer magnetic component. The inner magnetic component and the outer magnetic component can be magnetically attracted to each other. The magnetic-attraction artificial retina can arrange the retinal stimulator on the patient's eyeball by means of magnetic attraction, featuring convenient operation and less damage to the eyeball.

The present disclosure relates to a retinal stimulator comprising a camera for capturing an initial image and an implant device having a stimulating electrode array implanted in the retina, a matching method of the stimulating electrode array and the initial image being that a target region corresponding to the stimulating electrode array in the initial image is selected according to the tilt angle of the stimulating electrode array relative to the horizontal plane, wherein the number of pixels of the target region matches the number of electrodes of the stimulating electrode array. According to the present disclosure, the patient can see the image of normal visual angle without changing the hardware.

This invention discloses a drone control system and method based on an intelligent biological eye complex. The system includes: an isolated retinal stimulation and signal acquisition module for preparing an isolated retina into an intelligent biological eye complex, applying light stimulation to the intelligent biological eye complex, and acquiring its neural response signals; a signal processing module for preprocessing and decoding the acquired neural response signals, converting the decoded signals into control commands recognizable by the drone; and a drone flight control module for receiving control commands and controlling the drone's flight state. This invention utilizes an isolated retina as the core sensing component and, through neural signal encoding and decoding technology, can convert the neural response signals of the retina into control commands in real time, thereby achieving autonomous control of the drone. This not only improves the drone's response speed but also frees the operator's hands, allowing them to perform other tasks while controlling the drone's flight state.