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Small fundus camera

A camera and small-scale technology, applied in ophthalmoscope, eye testing equipment, medical science, etc., can solve the problems of large optical lens diameter, long optical path, large and complex structure of fundus camera, etc., achieve simple structure and reduce the size of the whole machine , the effect of easy installation

Pending Publication Date: 2020-12-08
SHANGHAI EAGLEVISION MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the separation of the illumination and imaging optical paths, the optical path is long and the aperture of the optical lens is too large to ensure the brightness of the illumination
Ultimately, the structure of the entire fundus camera is huge and complex

Method used

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Embodiment Construction

[0040] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a small fundus camera, and belongs to the technical field of medical ophthalmological optical instruments. The small fundus camera comprises a lens cone; an ocular objective lens, a camera lens group and a focusing module are sequentially arranged in the lens cone; the focusing module can be movably connected to the lens cone along the central axis direction of the lens cone; the focusing module is provided with an imaging detector and a fixation device; the imaging detector is arranged on the central axis of the lens cone; the fixation device is arranged on the side wall of the lens cone; an illuminating lamp is also arranged in the lens cone; and the illuminating lamp is positioned between the ocular objective lens and the camera lens group, faces the ocular objective lens, and is arranged far away from the central axis of the lens cone. According to the small fundus camera in the invention, the illuminating lamp is arranged in the lens cone in an inclined illuminating mode; furthermore, the fixation device is arranged in the focusing module, and serves as an identification point of a focusing system; the light path structure is simplified; and the volume of the whole camera is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical ophthalmic optical instruments, in particular to a small fundus camera. Background technique [0002] The fundus camera is mainly used to take images of the retina of the human eye, so that medical personnel can check fundus diseases or assist medical personnel to judge the condition of other organs. The blood vessels of the fundus are the only blood vessels that can be directly observed through the body surface. Medical personnel can check whether there are lesions in the optic nerve, retina, choroid and refractive medium of the fundus through the fundus camera. Diagnosis and disease judgment, such as detecting cerebral infarction, cerebral hemorrhage, cerebral arteriosclerosis, brain tumor, diabetes, kidney disease, hypertension, retinopathy of prematurity, glaucoma, age-related macular degeneration, etc. by screening retinal photos. The earlier these diseases are detected, the more beneficial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/12A61B3/14
CPCA61B3/0008A61B3/12A61B3/14
Inventor 杨皓聿任文斌常献刚和超张大磊
Owner SHANGHAI EAGLEVISION MEDICAL TECH CO LTD
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