Near-cornea circular annular multi-angle lighting device

A lighting device, multi-angle technology, applied in medical science, eye testing equipment, diagnosis, etc., can solve problems such as the inability to observe transparent attachments on the surface of the cornea, and achieve sufficient lighting, noise reduction, and small signal dark areas. Effect

Pending Publication Date: 2020-06-05
KANG HUA RUI MING SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To examine the corneal surface with a slit lamp, it is necessary to dye the transparent corneal surface. The corneal surface is intervened by a dyeing medium, which will show the color at the injury or ulcer site, but it will also cover up ot

Method used

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  • Near-cornea circular annular multi-angle lighting device

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] A ring-shaped oblique multi-angle lighting device near the cornea, which acts on the optical system 6 for ocular surface inspection. In this embodiment, the specific form of the optical system 6 for ocular surface inspection can be, for example, ophthalmic slit lamp, corneal topography, keratometer, etc. , hereinafter collectively referred to as the optical system, between the optical system 6 and the eye 3 is provided with a ring-shaped tilted multi-angle lighting device near the eye position, there is a distance between the illumination light emitted by the ring-shaped tilted multi-angle lighting device and the imaging optical axis of the ...

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Abstract

The invention relates to a near-cornea annular oblique multi-angle lighting device. The near-cornea circular oblique multi-angle lighting device comprises an optical system, wherein an annular obliquemulti-angle lighting device is arranged at the position close to eyes between the optical system and the eyes, an inclined angle is formed between the illumination light emitted from the annular oblique multi-angle lighting device and an imaging optical axis of the optical system, the light emitted from the oblique illumination device is used for observing cornea surfaces, cornea surface attachments ( a tear layer and tear surface lipid layers) and the like. The near-cornea annular oblique multi-angle lighting device is used for ocular surface checking optical systems (such as a slit lamp forthe department of ophthalmology, a corneal topography, a keratometer and the like), and illuminating rays of the device can basically cover the corneal surface. In order to increase the signal-noiseratio and reduce the noise, the rays which are oblique to the imaging optical axis of the optical system are used for illumination; in order to reinforce signals, the device is arranged at the position close to the eyes; and in order to decrease the circular signal dark area of a cornea center region, requirements that the illuminating angle for the cornea center from the perimeter region is largefrom small are met, and an annular illuminating body of a horn structure convex inner surface is adopted.

Description

technical field [0001] The invention relates to the field of special medical equipment, in particular to a near-cornea circular oblique multi-angle lighting device. Background technique [0002] The cornea is located on the surface of the eyeball and is transparent in texture. It is in direct contact with the outside world and is vulnerable to injury and infection. The surface of the cornea is observed, mainly using a slit lamp microscope, an ophthalmoscope, a corneal topography, and a keratometer. Observing the cornea with a slit lamp microscope can only cut the cornea through a narrow slit light and observe its cut surface. To examine the corneal surface with a slit lamp, it is necessary to dye the transparent corneal surface. The corneal surface is intervened by a dyeing medium, which will show the color at the injury or ulcer site, but it will also cover up other information on the corneal surface itself (such as tears, tears, etc.). membrane and the lipid layer on the...

Claims

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Application Information

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IPC IPC(8): A61B3/00A61B3/10A61B3/107
CPCA61B3/0008A61B3/10A61B3/101A61B3/107
Inventor 王奕
Owner KANG HUA RUI MING SCI & TECH CO LTD
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