摘要:
A system for detecting a wave occurring in/on a membrane includes a source for directing an excitation signal obliquely to the membrane and a receiver for measuring interference between a first part of the excitation signal reflected off a front surface of the membrane and a second part of the excitation signal reflected off a rear surface of the membrane. The system includes a processing device for detecting the wave based on a change in the measured interference. The detection of the wave is based on changes caused by the wave in the optical length of a V-shaped part of a propagation path of the second part of the excitation signal, where the V-shaped part of the propagation path is inside the membrane.
摘要:
A processor signals a display to show a target. Optics is positioned in an optical path taken by the target, as shown by the display, from the display to the eye of a user. The optics is configured to change accommodation by the eye and has adjustable focal length that enables the user to see the target with changing acuity. The processor then obtains an indication that the eye of the user is focused on the target. In response, the processor signals an alignment mechanism to align a sensor in the device to the eye of the user. After signaling the alignment mechanism to align the sensor to the eye of the user, the processor obtains sensor data, produced by the sensor, which measures a property of the eye. Other aspects are also described and claimed.
摘要:
Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user’s body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
摘要:
Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
摘要:
Systems and methods for biometric authentication in ophthalmic devices are provided. In one embodiment, a system includes: an ophthalmic diagnostic device configured to obtain diagnostic measurements of a patient's eye, the patient's eye including an iris and a cornea; an imaging device configured to capture an image of the iris; an optical sensor integrated with the imaging module and configured to detect a position of the iris with respect to the optical sensor; and a computing device in communication with the ophthalmic diagnostic device, imaging device, and the optical sensor. The computing device may be configured to: determine, based on the image of the iris and the position of the iris, whether the iris matches a known patient's iris; and perform a diagnostic measurement of the patient's eye based on the determining.
摘要:
An optometric instrument includes an alignment device that includes light sources for sending out light beams through one or more light channels from the instrument onto the retina of an eye of a patient. The light channels are directed parallel with the visual axis of the eye at correct alignment, whereat the light beams are visible for the patient in an intended way. A method for aligning an optometric instrument includes sending out light beams from the light sources through one or more light channels onto the retina of the eye of a patient, and positioning the instrument to have the light channels parallel with the visual axis of the eye of the patient as a result of finding a position, wherein the light can be correctly viewed by the patient.
摘要:
A system and method are presented for use in monitoring one or more conditions of a subject's body. The system includes a control unit which includes an input port for receiving image data, a memory utility, and a processor utility. The image data is indicative of data measured by a pixel detector array and is in the form of a sequence of speckle patterns generated by a portion of the subject's body in response to illumination thereof by coherent light according to a certain sampling time pattern. The memory utility stores one or more predetermined models, the model comprising data indicative of a relation between one or more measurable parameters and one or more conditions of the subject's body. The processor utility is configured and operable for processing the image data to determine one or more corresponding body conditions; and generating output data indicative of the corresponding body conditions.
摘要:
The problem addressed by the present invention is to provide a tonometer that is capable of measuring the intraocular pressure of a subject eye without the subject or persons around him experiencing noise, and without blowing air against the subject eye. With the present invention, a non contact eyeball vibration type tonometer is provided that includes: a parametric speaker that directs sound waves against the front surface of a subject eye; a detection device that detects data related to vibration of the subject eye caused by these sound waves from the parametric speaker; and a processing device that calculates the intraocular pressure of the subject eye from this vibration data for the subject eye.
摘要:
An ophthalmic device is provided with an illumination optical system configured to irradiate light irradiated from a light source as parallel light to a subject's eye at an oblique angle, the light source is configured to emit coherent light; an image capturing optical system including a light receiving element and configured to capture a reflected image by receiving first reflected light and second reflected light by the light receiving element, the first reflected light being reflected from an anterior surface of a cornea of the subject's eye, the second reflected light being different from the first reflected light and reflected from a posterior surface of the cornea of the subject's eye; and a controller configured to calculate a thickness of the cornea by using the reflected image captured by the image capturing optical system.
摘要:
Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.