AN ILLUMINATION DEVICE FOR TEAR FILM LIPID LAYER ON OCULAR SURFACE ATTACHED TO AN OPHTHALMIC SLIT LAMP MICROSCOPE

Abstract

The utility model relates to an illumination device (100) for tear film lipid layer on ocular surface attached to an Ophthalmic Slit lamp Microscope, which comprises a ophthalmic slit lamp microscope. An illumination device (100) for tear film lipid layer is installed on the slit lamp microscope. The illumination device (100) is located at the lower part of the observer’s eye to illuminate the surface of the lower half of the eye surface angular membrane of the observer’s eye for observing the tear film lipid layer. 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 (10), and its inclination angle is ≥ 20°, which reduces the noise interference of transparent parts such as iris behind the cornea, reduces the noise, and improves the observation and imaging clarity of the eye surface lipid layer.

Claims

1. An illumination device (100) for tear film lipid layer on ocular surface attached to an Ophthalmic Slit lamp Microscope, including ophthalmic slit lamp microscope, characterized in that: a. a left and right rotation mechanism (7) is hinged on an optical body (8) of the opthalmic slit lamp microscope; b. the illumination device (100) for tear film lipid layer on ocular surface is installed on the left and right rotating mechanism (7); c. the illumination device (100) for tear film lipid layer on ocular surface comprises a connecting part and an illuminating body, one end of the connecting part is connected with the left and right rotation mechanism (7), the other end of the connecting part is connected with the illuminating body, and light source of the illuminating body is a surface light source; and d. a front and rear adjusting mechanism (6) is installed on the left and right rotation mechanism (7), and a dry eye device (2) is installed on a sliding part of the front and rear adjusting mechanism (6).

2. The illumination device (100) for tear film lipid layer on ocular surface attached to an Ophthalmic Slit lamp Microscope according to claim 1, wherein an optical direction (9) emitted by a light source of the eye surface tear film lipid layer illumination device is inclined at an inclination angle relative to eye axis direction (10), said inclination angle is ≥ 20°.

3. The illumination device (100) for tear film lipid layer on ocular surface attached to an Ophthalmic Slit lamp Microscope according to claim 2, wherein the illuminating body further comprises a translucent flood board (3), a lipid layer lighting device/LED matrix lamp group (4) and a lipid layer lighting device housing (5), and the lipid layer lighting device/ LED matrix lamp group (4) is installed on an inner surface of the lipid layer lighting device housing (5), the translucent flood plate (3) is installed on an outer surface of the lipid layer lighting device (4).

4. The illumination device (100) for tear film lipid layer on ocular surface attached to an Ophthalmic Slit lamp Microscope according to claim 3, wherein the optical direction (9) emitted by the LED matrix lamp group (4) of the lipid layer lighting device (4) is diffused through the translucent flood board (3), 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

[0027] FIG. 1 is a side view of the lighting device of the present patent;

[0028] FIG. 2 is a front view of the lighting device of the present patent;

[0029] FIG. 3 is a general schematic diagram of the present patent;

[0030] The reference numerals in the figure illustrate illumination device (100) for tear film lipid layer on ocular surface, eye 1, dry eye device 2, translucent flood board 3, lipid layer lighting device/ LED matrix lamp group 4, lipid layer lighting device housing 5, front and rear adjusting mechanism 6 of the dry eye device (i.e. the front and back adjusting mechanism) of the dry eye device 2, the left and right rotation mechanism 7 (i.e. left and right rotation mechanism), the slit lamp microscope optical body 8, the optical direction 9 of the lipid layer illumination device, and the eye axis direction 10 (the eyes of the observer front squarely, the eye axis direction).

DETAILED DESCRIPTION OF THE INVENTION

[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 3, an illumination device (100) for tear film lipid layer on ocular surface is installed on optical body 8 of the ophthalmic slit lamp microscope, which is located at the lower part of the observer’s eye 1; the optical direction 9 emitted by the light source of the eye surface tear film lipid layer illumination device is inclined relative to the eye axis direction 10 (the direction of the eye axis facing the front of the observed eye), and the inclination angle is 25° ~ 80°.

[0033] Four groups of LED matrix lamp groups 4 are arranged along the inner wall of the lipid layer lighting device housing 5, the translucent flood board 3 is installed on the lipid layer lighting device housing 5, and the other end of the lipid layer lighting device housing 5 is connected to the dry eye device 2 attached to the slit lamp microscope optical body 8. The function of the translucent flood board 3 is to diffuse the light of the LED matrix lamp group 4 into a soft and uniform surface light source, so that the irradiation surface mapped to the lower half of the cornea of the eye surface is uniform and clear.

[0034] In this embodiment, the lipid layer lighting device 4 is fixed at the end of the left and right rotation mechanism 7 of the dry eye device 2 attached to the slit lamp microscope optical body 8.

[0035] The left and right rotation mechanism 7 is articulated on the optical body 8 of the slit lamp microscope, and a front and rear adjusting mechanism 6 is arranged on the left and right rotation mechanism 7, and a dry eye device 2 is arranged on the sliding part of the front and rear adjusting mechanism 6.

[0036] The additional dry eye device 2 of the slit lamp microscope can be moved back and forth. When the lipid layer lighting device 4 is used, the additional dry eye device 2 of the slit lamp microscope retreats towards the slit lamp microscope optical body 8, so that the dry eye device 2 does not block the optical direction 9 emitted by the lipid layer lighting device 4. When the lipid layer lighting device 4 is not in use, the dry eye device 2 attached to the slit lamp microscope can rotate more than 90° to the left (or right) to exit the optical body imaging optical path of the slit lamp microscope, which will not affect the realization of other functions of the slit lamp microscope.

[0037] The illumination light emitted by the LED matrix lamp group 4 irradiates on the translucent flood board 3 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 slit lamp microscope optical body 8, and calculates the lipid layer thickness of the irradiated part through different image colors.

[0038] For those skilled in the art, obviously, the present patent is not limited to the details of the above exemplary embodiments (for example, it is installed on the slit lamp microscope optical body, or on the connecting part/arm of the slit lamp body, or on other additional devices of the slit lamp body), 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 embodiment should be regarded as exemplary and practicalWithout limitation, the scope of the patent is limited by the appended 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.

[0039] 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.