Refraction adjustment device for fundus camera and fundus camera

An adjustment device and light adjustment technology, applied in the field of medical ophthalmic optical instruments, can solve the problems of small refraction adjustment range, poor adjustment efficiency, complicated operation, etc., and achieve the effect of large refraction adjustment range

Pending Publication Date: 2020-05-12
SHANGHAI EAGLEVISION MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the fundus camera equipment on the market has a small range of diopter adjustment, and some require manual operation, which is complicated to operate and poor in adjustment efficiency.

Method used

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  • Refraction adjustment device for fundus camera and fundus camera
  • Refraction adjustment device for fundus camera and fundus camera
  • Refraction adjustment device for fundus camera and fundus camera

Examples

Experimental program
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Effect test

Embodiment 1

[0058] This embodiment provides a refraction adjustment device for a fundus camera, such as figure 1 As shown, it includes: a front lens barrel 1, one end of which is suitable for installing an eyepiece; a rear lens barrel 2, one end of which is fixedly connected to the other end of the front lens barrel 1; a diopter adjustment rear cover 3, one end of which is connected to the rear lens barrel 2 The other end of the refraction adjustment rear cover 3 is movably socketed, and the other end of the refraction adjustment rear cover 3 is suitable for fixedly installing the photographing assembly 4; it also includes a first adjustment device, which is used to adjust the front lens barrel 1 to do axial expansion and contraction, and The rear lens barrel 2 and the refraction adjustment rear cover 3 are driven to act together; the second adjustment device is used to adjust the refraction adjustment rear cover 3 to perform axial expansion and contraction relative to the rear lens barrel...

Embodiment 2

[0073] This embodiment provides a fundus camera, including the refraction adjustment device as described in any one of Embodiment 1.

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Abstract

The invention provides a refraction adjustment device for a fundus camera and the fundus camera. The refraction adjustment device includes a front lens cone, a rear lens cone and a refraction adjustment rear cover, wherein one end of the front lens cone is suitable for installation of an eyepiece, one end of the rear lens cone is fixedly connected to the other end of the front lens cone, and one end of the refraction adjustment rear cover is movably sleeved by the other end of the rear lens cone; the other end of the refraction adjustment rear cover is suitable for fixed installation of a camera assembly, the refraction adjustment device further includes a first adjusting device body and a second adjusting device body, and the first adjusting device body is used for adjusting the front lens cone to expand and contract in the axial direction and driving the rear lens cone and the refraction adjustment rear cover to move together; and the second adjusting device body is used for adjusting the refraction adjustment rear cover to expand and contract axially relative to the rear lens cone. The refraction adjustment device for the fundus camera has a large range of refraction adjustmentthrough the structural design of the first adjusting device body and the second adjusting device body, and can be adaptive to taking of clear fundus pictures under multiple situations.

Description

technical field [0001] The invention relates to the technical field of medical ophthalmic optical instruments, in particular to a refraction adjustment device for a fundus camera and the 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 earlie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/12A61B3/14G02B7/04G03B13/32G03B13/34
CPCA61B3/12A61B3/14G02B7/04G03B13/32G03B13/34A61B3/0016
Inventor 任文斌常献刚和超张大磊
Owner SHANGHAI EAGLEVISION MEDICAL TECH CO LTD
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