ILLUMINATION DEVICE FOR TEAR FILM LIPID LAYER ON OCULAR SURFACE ATTACHED TO CORNEAL TOPOGRAPHY

Abstract

The utility model relates to an illumination device for tear film lipid layer on ocular surface. The illumination device for tear film lipid layer on ocular surface attached to corneal topography, located at the lower part of the subject's eye to illuminate the surface of the lower half of the subject's eye surface cornea for observing the tear film lipid layer; the illumination device comprises a rotating part and an illumination body, the rotating part is hinged on the corneal topography optical body, the illumination body is installed on the rotating part, and the illumination body light source is a surface light source; the light emitted by the light source of the eye surface tear film lipid layer illumination device is inclined relative to the eye axis direction, at an angle of ≥20°, which reduces the noise interference of the iris and other transparent parts behind the cornea, and improves the observation and imaging clarity.

Claims

1. An illumination device (16) for illuminating tear film lipid layer on an ocular surface attached to a corneal topography, characterized in that the illumination device is installed on the corneal topography, the illumination device comprises a rotating part (7) and an illuminator, the rotating part being hinged on the corneal topography optical body (8), and the illuminator is installed on the rotating part (7), and the illuminator comprises a light source which is a surface emitting light.

2. The illumination device according to claim 1, wherein, the light emitted by the light source of the eye surface tear film lipid layer illumination device is inclined at an inclination angle relative to eye axis direction (2), said inclination angle is ≥20°.

3. The illumination device according to claim 1, wherein the rotating part (7) drives the illuminator to rotate to a working position when in use and to a non-working position when not in use.

4. The illumination device according to claim 1, wherein the illuminator further comprises a translucent flood plate (5), a lipid layer lighting device LED matrix lamp group (15) and a lipid layer lighting device cover (12), and the lipid layer lighting device LED matrix lamp group is installed on an inner surface of the lipid layer lighting device cover, the translucent flood plate (5) is installed on an outer surface of the lipid layer lighting device.

5. The illumination device according to claim 4, wherein the illumination light emitted by the LED matrix lamp group (15) of the lipid layer illumination device is diffused through the translucent flood plate (5), transformed into a soft and uniform area light source, and mapped to the lower half of the cornea on an eye surface.

Description

DESCRIPTION OF DRAWINGS

[0025] FIG. 1 is an exploded view of the lipid layer lighting device of the present patent;

[0026] FIG. 2 is a schematic diagram of the working position of the lipid layer lighting device of the present patent;

[0027] FIG. 3 is a general schematic diagram of the working position of the lipid layer lighting device of the present patent;

[0028] FIG. 4 is a schematic diagram of the non-working position of the lipid layer lighting device of the present patent;

[0029] FIG. 5 is a general schematic diagram of the non-working position of the lipid layer lighting device of the present patent;

[0030] The reference numerals in the figure are described as eyes 1 Eye axis direction (the subject's eyes are facing the front, and the direction of the eye axis) 2. The optical direction of the lipid layer lighting device 3. The rotation direction when the non-working position of the lipid layer lighting device turns to the working position 4-1. The rotation direction when the working position of the lipid layer lighting device turns to the non-working position 4-2. The translucent flood board 5, the outer cover of the lipid layer lighting device 6, the rotation mandrel of the lipid layer lighting device 7. Corneal topography Fig. optical body housing 8, Placido disk 9, Placido disk housing 10, magnet sheet 11, lipid layer lighting device wire cover 12, magnet 13, wire protective sleeve 14, lipid layer lighting device LED matrix lamp group 15 and lipid layer lighting device 16.

SPECIFIC EMBODIMENTS

[0031] The preferred embodiment of the patent is described in detail below in combination with the accompanying drawings, so that the advantages and features of the patent can be more easily understood by those skilled in the art, so as to make a clearer and clear definition of the protection scope of the patent.

[0032] As shown in FIGS. 1 to 5, an eye surface tear film lipid layer illumination device is installed on the corneal topographic map, which is located at the lower part of the observer's eye 1; The light 3 emitted by the light source of the eye surface tear film lipid layer illumination device is inclined relative to the eye axis direction 2 (the front of the observed eye, the direction of the eye axis), and the inclination angle is 25°˜80°.

[0033] Two groups of LED matrix lamp groups 15 are arranged along the inner wall of the lipid layer lighting device housing 6, the translucent flood plate 5 is installed on the lipid layer lighting device housing 6, and the lower end of the lipid layer lighting device housing 6 is hinged with the bottom of Placido's disk housing 10.

[0034] The function of the translucent flood board 5 is to diffuse the light of the LED matrix lamp group 15 into a soft and uniform surface light source, so that the irradiation surface mapped to the lower half of the cornea on the ocular surface of the eye is uniform and clear.

[0035] The Placido disk housing 10 is hinged with the lipid layer lighting device housing 6 through the lipid layer lighting device rotating mandrel 7.

[0036] When the lipid layer lighting device 16 is used, the lipid layer lighting device 16 turns to the working position along the rotation direction 4-1 (FIG. 2, FIG. 3); after the lipid layer lighting device 16 works, the lipid layer lighting device 16 turns to the non-working position along the rotation direction 4-2 (FIG. 4, FIG. 5), which will not affect the realization of other functions of the corneal topography.

[0037] In the working position, the lipid layer lighting device 16 is fixed by the magnet 13 magnetically attracting the magnet sheet 11, wherein the magnet 13 is fixed on the placido disc 9 and the magnet sheet 11 is fixed on the lipid layer lighting device cover 6.

[0038] The illumination light emitted by the LED matrix lamp group 15 irradiates on the translucent flood board 5 to form an area light source. The area light source irradiates the corneal surface in the direction of the lower part of the eye surface of eye 1, then observes the lipid layer mapping image of the irradiated eye surface through the optical body, and calculates the lipid layer thickness of the irradiated part through different image colours.

[0039] In the preferred embodiment, an illumination device (16) for illuminating tear film lipid layer on an ocular surface attached to a corneal topography, characterized in that the illumination device is installed on the corneal topography, the illumination device comprises a rotating part (7) and an illuminator, the rotating part being hinged on the corneal topography optical body (8), and the illuminator is installed on the rotating part (7), and the illuminator comprises a light source which is a surface emitting light. The light emitted by the light source of the eye surface tear film lipid layer illumination device is inclined at an inclination angle relative to eye axis direction (2), said inclination angle is ≥20°. It is to be noted that the rotating part (7) drives the illuminator to rotate to a working position when in use and to a non-working position when not in use.

[0040] Further, the illuminator comprises a translucent flood plate (5), a lipid layer lighting device LED matrix lamp group (15) and a lipid layer lighting device cover (12), and the lipid layer lighting device LED matrix lamp group is installed on an inner surface of the lipid layer lighting device cover, the translucent flood plate (5) is installed on an outer surface of the lipid layer lighting device. The illumination light emitted by the LED matrix lamp group (15) of the lipid layer illumination device is diffused through the translucent flood plate (5), transformed into a soft and uniform area light source, and mapped to the lower half of the cornea on an eye surface.

[0041] For those skilled in the art, it is obvious that the patent is not limited to the details of the above exemplary embodiments, and the patent can be realized in other specific forms without departing from the spirit or basic features of the patent. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the patent is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the patent. Any reference numerals in the claims shall not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the description is described according to the embodiments, not each embodiment contains only one independent technical solution. This description of the description is only for clarity. Those skilled in the art should take the description as a whole, and the technical solutions in each embodiment can also be combined appropriately, Form other embodiments that can be understood by those skilled in the art.