9 results about "Ocular imaging" patented technology

The present disclosure relates to methods and systems for quantifying the vascular pattern using ocular imaging that shows vessel profiles for the detection, prevention, and treatment of diabetic retinopathy and other related ocular vascular diseases.

The utility model provides a kind of eye imaging system.The eye imaging system includes optical combiner, detection module and display module being arranged in the side of user's eye, detection module includes illumination light source, first light transmission component and image collection device, first light transmission component is used to transmit the light of illumination light source exit to user's eye, and the light reflected by user's eye is transmitted to image collection device by first light transmission component;Display module is electrically connected with image collection device, and display module is used to receive and display the image of image collection device, and display module further includes second light transmission component, and the image of display module is transmitted to optical combiner by second light transmission component.The utility model solves the problem that eye imaging system in the prior art cannot simultaneously consider the functions of eye image collection and display.

The present application relates to the technical field of image acquisition, in particular to a rigid endoscope image acquisition method and system based on eyepiece imaging, comprising: receiving a first light path image and a second light path image transmitted through an objective lens by an eyepiece assembly of a rigid endoscope, and performing photoelectric conversion on the first light path image and the second light path image to obtain corresponding first original electric signals and second original electric signals; inputting the first original electric signals and the second original electric signals into a pre-trained image denoising model for denoising processing to obtain a first denoised image and a second denoised image. The present application generates a real-time depth mapping graph by combining posture sensor data, so that the endoscope can accurately reflect the distance distribution between the front end and the photographed tissue when observing the tissue, which helps doctors obtain more accurate spatial information.

A light-transmitting substrate is deployed with a first of two major surfaces in facing relation to an eye of a viewer and guides light by internal reflection between the two major surfaces. An optical coupling-out configuration couples image light, that corresponds to a collimated image and that is guided by internal reflection between the two major surfaces, out of the light-transmitting substrate. A first optical coupling configuration collimates light from the eye to produce collimated light, and couples the collimated light into the light-transmitting substrate for guiding by internal reflection. A second optical coupling configuration couples the collimated light out of the light-transmitting substrate toward an optical sensor that senses the coupled-out light. A processing system derives current gaze direction of the eye by processing signals from the optical sensor.

An ocular alignment system for aligning a subject's eye with an optical axis of an ocular imaging device comprising one or more guide light and one or more baffle configured to mask the one or more guide light from view of the subject such that the one or more guide light is only visible to the subject when the eye of the subject is aligned with the optical axis of an ocular imaging system.

The invention provides a device (30) for imaging and / or measuring an eye (42) having a cornea (40), the device comprising a camera (32) which has a field of view and which is for obtaining a camera image of the eye viewed along a first direction, a mirror (44, 56) which is mounted in a predetermined position and orientation relative to the camera and in the camera's field of view to provide, in the camera image, a reflection showing the cornea viewed along a second direction which is not parallel to the first direction, and a processing device configured to determine, by analysis of the reflection, a distance from the camera to the cornea.

This application discloses an eye-shooting device, belonging to the technical field of eye-shooting devices. The eye-shooting device includes a housing, a shooting component, and an eye mask. The eye mask is configured as a first part and a second part that are fastened together, with a hollow cavity distributed along the circumference of the eye mask between these two parts. Thus, when a user uses the eye-shooting device, the user's face contacts the eye mask, and the eye mask undergoes a certain and relatively slow elastic deformation, resulting in a softer touch on the user's face, thereby improving the user's wearing comfort. Furthermore, the hollow groove design of the eye mask reduces the overall weight of the eye mask, saves manufacturing costs, and facilitates the miniaturization of the eye-shooting device.