Intraocular illuminator and illumination fiber

Abstract

The invention provides an intraocular illuminator and an illumination optical fiber. The intraocular illuminator comprises a light source, a collimating lens, a filter, a lens array and an optical fiber bundle, weaving and bundling the tail part of the optical fiber bundle; the light source is used for emitting light beams which enter the collimating lens. The collimating lens is used for collimating the light beam, and the collimated light beam enters the filter; the filter is used for filtering light beams of a specified wave band, and the filtered light beams enter the lens array; the lens array is used for segmenting the light beam, and the segmented light beam is coupled into the optical fiber bundle; the optical fiber bundle is used for transmitting light beams, and the emergent surface of the optical fiber bundle emits small-aperture light beams with uniform light intensity distribution. In the mode, the light beams are segmented through the lens array and coupled into the optical fibers, the lighting effect is improved, and the glass optical fibers are adopted, so that the device is resistant to high temperature and not prone to damage.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmic lighting, in particular to an intraocular illuminator and a lighting optical fiber. Background Art

[0002] Ophthalmic microsurgery requires precise cutting and / or removal of various body tissues within a patient's eye. During surgery, ophthalmic lighting devices can provide light for the surgical field. A user (such as a surgeon or other medical professional) can insert the device into the eye to illuminate the interior of the eye. A light source and other illumination optics (such as a collimator and condenser) direct the light beam toward the optical fiber of the illumination device. Therefore, obtaining high brightness, large NA (numerical aperture) illumination, and high temperature resistance of the illumination fiber are the goals pursued by intraocular illuminators and illumination fibers.

[0003] Existing intraocular illuminators typically use xenon lamps or LEDs (light-emitting diodes) as light sources, employing a collimated and converging method to form a focused light spot at the focal plane of the light source. Plastic optical fibers are typically used for illumination. However, the collimated and converging method cannot achieve a small light spot, resulting in low light efficiency. Plastic optical fibers have low temperature resistance, generating a large amount of heat at the fiber entrance, causing the temperature to rise, which can easily burn the plastic optical fiber and cause the illumination fiber to fail. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an intraocular illuminator and lighting optical fiber, which can split the light beam through a lens array and couple the light beam into the optical fiber to improve the light efficiency. Glass optical fiber is used, which has high temperature resistance and is not easy to damage. By splitting the light beam through a lens array and then using a focusing lens to converge the light spot, a smaller convergent light spot can be achieved, thereby improving the light efficiency.

[0005] In a first aspect, an embodiment of the present invention provides an intraocular illuminator, which includes: a light source, a collimating lens, a filter, a lens array, and an optical fiber bundle; the tail of the optical fiber bundle is braided and bundled; the light source is used to emit a light beam, and the light beam enters the collimating lens; the collimating lens is used to collimate the light beam, and the collimated light beam enters the filter; the filter is used to filter the light beam of a specified wavelength band, and the filtered light beam enters the lens array; the lens array is used to split the light beam, and the split light beam is coupled into the optical fiber bundle; the optical fiber bundle is used to transmit the light beam, and the exit surface of the optical fiber bundle emits a light beam with a small aperture and uniform light intensity distribution.

[0006] In a preferred embodiment of the present application, the lens array is a microlens array or a gradient refractive index lens array.

[0007] In a preferred embodiment of the present application, the number of the lens arrays is 11 to 267; the shape of the lens array is square, rectangular or polygonal.

[0008] In a preferred embodiment of the present application, the core diameter of the optical fiber of the above-mentioned optical fiber bundle is 30μm, 50μm, 70μm or 100μm; when the spot diameter of the incident surface of the optical fiber bundle is less than 100μm, the focal length of the lens array is 2mm to 15mm; the optical fiber of the optical fiber bundle is multi-component glass fiber; the optical fiber bundle is made based on weaving technology and hot melt technology, and the head and tail of the optical fiber bundle have the same diameter and number of optical fiber roots.

[0009] In a second aspect, an embodiment of the present invention further provides an intraocular illuminator, comprising: a light source, a collimating lens, a filter, a first lens array, a second lens array and a focusing lens; the focal planes of the first lens array and the second lens array coincide; the light source is used to emit a light beam, which enters the collimating lens; the collimating lens is used to collimate the light beam, and the collimated light beam enters the filter; the filter is used to filter the light beam of a specified wavelength band, and the filtered light beam enters the first lens array; the first lens array is used to split the light beam, and the split light beam enters the second lens array; the second lens array is used to collimate the light beam emitted from the first lens array, and the collimated light beam enters the focusing lens; the focusing lens is used to converge the light beam to emit a light beam with a small aperture and uniform light intensity distribution.

[0010] In a preferred embodiment of the present application, the first lens array and the second lens array are both microlens arrays or gradient refractive index lens arrays.

[0011] In a preferred embodiment of the present application, the number of the first lens array and the second lens array are both 11 to 267; the shapes of the first lens array and the second lens array are both square, rectangular or polygonal.

[0012] In a preferred embodiment of the present application, the focal length of the focusing lens is 10 mm to 100 mm.

[0013] In a third aspect, an embodiment of the present invention further provides an illumination optical fiber, which is used to transmit a light beam with a small aperture and uniform light intensity distribution emitted by the above-mentioned intraocular illuminator.

[0014] In a preferred embodiment of the present application, the optical fiber filaments of the above-mentioned lighting optical fiber are multi-component glass filaments; the lighting optical fiber is manufactured based on braiding technology and hot-melt technology, and the head and tail of the lighting optical fiber have the same diameter and number of optical fiber filaments.

[0015] The embodiments of the present invention bring the following beneficial effects:

[0016] An embodiment of the present invention provides an intraocular illuminator and an illumination fiber. The light beam is split by a lens array and coupled into the optical fiber to improve the light efficiency. Glass optical fiber filaments are used, which are highly heat-resistant and not easily damaged. The light beam is split by a lens array and then a focusing lens is used to converge the light spot, which can achieve a smaller converged light spot and improve the light efficiency.

[0017] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by practicing the above-mentioned technology of the present disclosure.

[0018] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of an intraocular illuminator provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a light spot profile of an intraocular illuminator provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the working principle of a microlens array provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the working principle of a refractive index lens array provided by an embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of another intraocular illuminator provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a light spot profile of another intraocular illuminator provided by an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of an illumination optical fiber provided by an embodiment of the present invention;

[0027] Figure 8 A schematic diagram of an intraocular illuminator and an illumination fiber optic system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] Currently, existing intraocular illuminators generally use xenon lamps or LEDs as light sources, which use a collimated convergence method to form a converging light spot at the focal plane of the light source; the light spot size is large, and the fiber diameter at the incident end of the intraocular illuminator's illumination fiber is less than 1mm. When coupling into the illumination fiber, a large amount of light cannot enter the illumination fiber, resulting in low light efficiency.

[0030] Furthermore, existing intraocular illuminators mostly use plastic optical fibers, which have a temperature resistance of less than 80°C. To improve optical efficiency, multiple fiber segments are spliced ​​together or optical fibers with tapered diameters are used. While the complex plastic optical fibers used in these disposable illuminators improve optical efficiency to a certain extent, they are complex and expensive.

[0031] Based on this, an embodiment of the present invention provides an intraocular illuminator and lighting optical fiber, which involve lighting light source beam processing and lighting optical fiber. The light beam is split by a lens array and coupled into the optical fiber to improve the light efficiency. Glass optical fiber is used, which has high temperature resistance and is not easy to damage. The light beam is split by a lens array and then a focusing lens is used to converge the light spot, which can achieve a smaller converged light spot and improve the light efficiency.

[0032] To facilitate understanding of this embodiment, an intraocular illuminator disclosed in an embodiment of the present invention is first introduced in detail.

[0033] Example 1:

[0034] The embodiment of the present invention provides an intraocular illuminator, see Figure 1 The diagram shows a schematic diagram of the structure of an intraocular illuminator, which includes: a light source, a collimating lens, a filter, a lens array, and an optical fiber bundle; the tail of the optical fiber bundle is braided and bundled; the light source is used to emit a light beam, which enters the collimating lens; the collimating lens is used to collimate the light beam, and the collimated light beam enters the filter; the filter is used to filter the light beam of a specified wavelength band, and the filtered light beam enters the lens array; the lens array is used to split the light beam, and the split light beam is coupled into the optical fiber bundle; the optical fiber bundle is used to transmit the light beam, and the exit surface of the optical fiber bundle emits a light beam with a small aperture and uniform light intensity distribution.

[0035] Fiber braiding of optical fiber bundles refers to performing complex braiding processing on optical fiber filaments to convert incident light into uniform light for outgoing transmission.

[0036] In this embodiment, a lens array can be used to split the light beam and couple it into the optical fiber, thereby reducing the number of optical fibers and improving energy utilization. After the split light beam is transmitted through the optical fiber, the tail is braided and bundled to form a very small spot diameter.

[0037] In the intraocular illuminator provided in this embodiment, a collimating lens is used to collimate the light beam; a filter is used to filter the ultraviolet band to protect the safety of the human eye; a lens array is used to split the light beam to form a large NA and small aperture light spot; and an optical fiber bundle is used to transmit the illumination light beam to form a small light spot diameter to improve coupling efficiency.

[0038] See Figure 2 A schematic diagram of the light spot profile of an intraocular illuminator is shown in FIG. Figure 2 Figure 2 shows the spot profile after collimation, the spot profile of the optical fiber incident surface of the lens array focal plane, the spot profile of the incident surface of a single optical fiber, the spot profile of the exit surface of a single optical fiber, and the spot profile of the optical fiber bundle. Figure 2 As shown, the intraocular illuminator in this embodiment can obtain a small-aperture, uniformly distributed light beam through light spot segmentation, optical fiber weaving and bundling.

[0039] An embodiment of the present invention provides an intraocular illuminator that splits a light beam through a lens array and couples the light beam into an optical fiber to improve light efficiency. The device uses glass optical fiber filaments that are highly heat-resistant and not easily damaged.

[0040] In some embodiments, the lens array is a microlens array or a gradient index lens array.

[0041] See also Figure 3 Figure 1 is a schematic diagram of the working principle of a microlens array, where LA1 is microlens array 1, LA2 is microlens array 2, FL is the Fresnel lens, FP is the receiving screen, dn is the diameter of the incident collimated light, DPT is the uniform light size, fLA1 is the focal length of array 1, fLA2 is the focal length of array 2, a12 is the dual array spacing, S is the spacing between array 2 and the Fresnel lens, and fFL is the focal length of the Fresnel lens.

[0042] After beam expansion and collimation, the laser light source is incident parallel to the lens array. This parallel incident laser beam strikes the first microlens array and is focused by each sub-element, re-forming the focal point of the array arrangement. The incident beam can be roughly viewed as an array of beam clusters corresponding to the lens array. The refocused beamlets are superimposed on each other. Due to the symmetry of the array arrangement, and therefore the symmetry of the emitted beamlets, any unevenness in the beamlets is offset, ultimately forming a uniform target spot on the receiving screen.

[0043] In this embodiment, the refractive index gradient of the Grin lens array can be selected as needed to focus the focal length of the lens to generate a uniform light beam of any shape and size, which is convenient for subsequent light path processing or coupling into an optical fiber.

[0044] See also Figure 4 A schematic diagram of the working principle of a refractive index lens array is shown in FIG. Figure 4 Figure 2 shows the refractive index distribution curve of a refractive index lens, the refractive index lens trajectory, the light trajectory of a conventional lens, and the light trajectory of the refractive index lens coupled with focusing. A refractive index lens, also known as a self-focusing lens, is a cylindrical optical lens with a radially gradient refractive index distribution. It possesses both focusing and imaging capabilities.

[0045] In some embodiments, the number of the lens arrays is 11 to 267; the shape of the lens array is square, rectangular or polygonal.

[0046] According to the spot size after collimation and the diameter of the back-end illumination fiber, the number of lens arrays is selected from 11 to 267. The shape of the lens array is square, rectangular or polygonal, with a high duty cycle and high beam utilization.

[0047] In some embodiments, the core diameter of the optical fiber of the above-mentioned optical fiber bundle is 30μm, 50μm, 70μm or 100μm; when the spot diameter of the incident surface of the optical fiber bundle is less than 100μm, the focal length of the lens array is 2mm to 15mm; the optical fiber of the optical fiber bundle is multi-component glass fiber; the optical fiber bundle is made based on weaving technology and hot melt technology, and the head and tail of the optical fiber bundle have the same diameter and number of optical fiber strands.

[0048] The core diameter of the optical fiber of the optical fiber bundle can be 30μm, 50μm, 70μm or 100μm100μm. In order to improve the coupling efficiency into the optical fiber, the spot diameter at the optical fiber incident surface is less than 100μm, and the focal length of the lens array can be selected from 2mm-15mm.

[0049] The optical fiber uses multi-component glass fibers to achieve high temperature resistance and large NA illumination beams. The optical fiber can use braiding technology to improve the uniformity of the output light, and hot-melt technology to improve the light efficiency. The use of optical fiber bundles with the same diameter and the same number of fibers at the head and tail simplifies the lighting optical fiber manufacturing process and reduces costs.

[0050] Example 2:

[0051] The embodiment of the present invention provides another intraocular illuminator, see Figure 5The schematic diagram of the structure of another intraocular illuminator shown in the figure includes: a light source, a collimating lens, a filter, a first lens array, a second lens array and a focusing lens; the focal planes of the first lens array and the second lens array coincide; the light source is used to emit a light beam, which enters the collimating lens; the collimating lens is used to collimate the light beam, and the collimated light beam enters the filter; the filter is used to filter the light beam of a specified wavelength band, and the filtered light beam enters the first lens array; the first lens array is used to split the light beam, and the split light beam enters the second lens array; the second lens array is used to collimate the light beam emitted by the first lens array, and the collimated light beam enters the focusing lens; the focusing lens is used to converge the light beam to emit a light beam with a small aperture and uniform light intensity distribution.

[0052] In this embodiment, a lens array can be used to split the light beam, and a converging lens can be used to focus the light, so as to obtain a smaller spot size and improve energy utilization. By using a focusing lens with a smaller focal length, a larger NA can be obtained, thereby increasing the NA entering the illumination optical fiber. By using an optical fiber with a 0.86NA, high-brightness, large-angle illumination can be obtained.

[0053] In the intraocular illuminator provided in this embodiment, the collimating lens is used to collimate the light beam; the filter is used to filter the ultraviolet band to protect the safety of the human eye; the first lens array is used to split the light beam to form a large NA, small aperture light spot; and the focusing lens is used to converge the light beam emitted from the second lens array to form a small-size, large NA light beam.

[0054] See Figure 6 The schematic diagram of the light spot profile of another intraocular illuminator is shown in FIG. Figure 6 The figure shows the spot profile after collimation, the spot profile of the first lens array focal plane (fiber incident surface), and the spot profile of the focusing lens focal plane. Figure 6 As shown, the intraocular illuminator in this embodiment can obtain a small-aperture, uniformly distributed light beam by splitting and converging the light spot.

[0055] An embodiment of the present invention provides an intraocular illuminator that splits a light beam through a lens array and then uses a focusing lens to converge the light spot, thereby achieving a smaller converged light spot and improving the light efficiency.

[0056] In some embodiments, the first lens array and the second lens array are both microlens arrays or gradient refractive index lens arrays.

[0057] In some embodiments, the number of the first lens array and the second lens array are both 11 to 267; the shapes of the first lens array and the second lens array are both square, rectangular or polygonal.

[0058] Depending on the collimated spot size and the aperture of the back-end illumination fiber, the focal length of the lens array can be selected from 2mm to 15mm; the number of lenses in the array can be selected from 11 to 267. The lens array can be square, rectangular, or polygonal, with a high duty cycle and high beam utilization.

[0059] In some embodiments, the focal length of the focusing lens is 10 mm to 100 mm. The focal length of the focusing lens can be selected from 10 mm to 100 mm, which can form a uniform light spot with a diameter of less than 1 mm.

[0060] In the intraocular illuminator provided by an embodiment of the present invention, a collimating lens is used to collimate the light beam; a filter is used to filter the ultraviolet band to protect the safety of the human eye; a microlens (Grin lens) array is used to split the light beam to form a large NA, small-aperture light spot; an optical fiber bundle is used to transmit the illumination light beam to form a small light spot diameter and improve coupling efficiency; and a focusing lens is used to converge the light beam emitted from the second microlens (Grin lens) array to form a small-size, large-NA light beam.

[0061] Example 3:

[0062] An embodiment of the present invention provides an illumination optical fiber, which is used to transmit the light beam with a small aperture and uniform light intensity distribution emitted by the intraocular illuminator provided in the above embodiment.

[0063] In some embodiments, the optical fiber filaments of the above-mentioned illumination optical fiber are multi-component glass filaments; the illumination optical fiber is manufactured based on braiding technology and hot-melt technology, and the head and tail of the illumination optical fiber have the same diameter and number of optical fiber filaments.

[0064] This embodiment utilizes multi-component glass as the optical fiber, which boasts a high NA and wide divergence angle. Hot-melt technology can also be employed to increase the fiber's fill rate and enhance heat resistance. Hot-melt multi-component glass optical fiber, manufactured using this technology, is a light-guiding system that fuses the fiber tips together at high temperatures without the use of glue. This significantly increases the fiber's fill rate within the same aperture, increasing light transmission while also improving heat resistance.

[0065] See also Figure 7 The schematic diagram of an illumination optical fiber is shown. The number of optical fiber bundles at the light input end and the light output end of the illumination optical fiber are the same, the diameter is the same, the production is simple, the temperature resistance is strong, and the transmission efficiency is high.

[0066] See also Figure 8 FIG2 is a schematic diagram of an intraocular illuminator and illumination fiber optic system, which shows the connection relationship between the light source, the intraocular illuminator and the illumination fiber optic system.

[0067] The intraocular illuminator and illumination optical fiber provided by the embodiments of the present invention can provide light beam splitting, forming a smaller converging light spot, which is coupled into the optical fiber to improve the light beam utilization efficiency; the optical fiber bundle can provide light beam transmission, forming a large NA and small-aperture light spot optical path difference, so that the light source has high light efficiency utilization rate, occupies a small space, and has high temperature resistance; the focusing lens can select the focal length of the focusing lens according to the target light spot size to achieve a large NA and small-aperture light spot size; the illumination optical fiber can use multi-component glass fibers to achieve a high temperature resistance and large NA illumination beam, the optical fiber can use braiding technology to improve the uniformity of the output light, and use hot melting technology to improve the light efficiency. The use of optical fiber bundles with the same diameter and the same number of fibers at the head and tail simplifies the illumination optical fiber manufacturing process and reduces costs.

[0068] The intraocular illuminator and illumination fiber provided in the embodiments of the present invention can use a microlens (Grin lens) array to split the light beam and couple it into the optical fiber, thereby reducing the number of optical fibers and improving energy utilization. The microlens (Grin lens) array can be combined with a focusing lens to obtain a large NA, small-aperture light spot. Multi-component glass fibers can also be used to achieve a high-temperature-resistant, large-NA illumination beam. The optical fiber can use braiding technology to improve the uniformity of the output light, and hot-melt technology to improve the light efficiency. The use of optical fiber bundles with the same diameter and the same number of fibers at the head and tail simplifies the manufacturing process of the illumination fiber and reduces costs.

[0069] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the illumination optical fiber described above can refer to the corresponding process in the aforementioned embodiment of the intraocular illuminator, and will not be repeated here.

[0070] In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0071] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0072] Finally, it should be noted that the above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An intraocular illuminator, characterized in that The intraocular illuminator comprises: a light source, a collimating lens, a filter, a lens array and an optical fiber bundle; the tail of the optical fiber bundle is braided and bundled; The light source is used to emit a light beam, and the light beam enters the collimating lens; The collimating lens is used to collimate the light beam, and the collimated light beam enters the filter; The filter is used to filter the light beam in a specified wavelength band, and the filtered light beam enters the lens array; The lens array is used to split the light beam, and the split light beam is coupled into the optical fiber bundle; The optical fiber bundle is used to transmit the light beam, and the exit surface of the optical fiber bundle emits a light beam with a small aperture and uniform light intensity distribution.

2. The intraocular illuminator according to claim 1, wherein The lens array is a microlens array or a gradient refractive index lens array.

3. The intraocular illuminator according to claim 1, wherein The number of the lens arrays is 11 to 267; the shape of the lens array is square, rectangular or polygonal.

4. The intraocular illuminator according to claim 1, wherein The core diameter of the optical fiber of the optical fiber bundle is 30 μm, 50 μm, 70 μm or 100 μm; when the spot diameter of the incident surface of the optical fiber bundle is less than 100 μm, the focal length of the lens array is 2 mm to 15 mm; The optical fibers of the optical fiber bundle are multi-component glass fibers; the optical fiber bundle is manufactured based on braiding technology and hot-melt technology, and the head and tail of the optical fiber bundle have the same diameter and number of optical fibers.

5. An intraocular illuminator, characterized in that: The intraocular illuminator comprises: a light source, a collimating lens, a filter, a first lens array, a second lens array and a focusing lens; the focal planes of the first lens array and the second lens array coincide; The light source is used to emit a light beam, and the light beam enters the collimating lens; The collimating lens is used to collimate the light beam, and the collimated light beam enters the filter; The filter is used to filter the light beam in a specified wavelength band, and the filtered light beam enters the first lens array; The first lens array is used to split the light beam, and the split light beams enter the second lens array; The second lens array is used to collimate the light beam emitted by the first lens array, and the collimated light beam enters the focusing lens; The focusing lens is used to converge the light beam to emit a light beam with a small aperture and uniform light intensity distribution.

6. The intraocular illuminator according to claim 5, characterized in that The first lens array and the second lens array are both microlens arrays or gradient refractive index lens arrays.

7. The intraocular illuminator according to claim 5, characterized in that The number of the first lens array and the number of the second lens array are both 11 to 267; the shape of the first lens array and the second lens array are both square, rectangular or polygonal.

8. The intraocular illuminator according to claim 5, wherein The focal length of the focusing lens is 10 mm to 100 mm.

9. An illumination optical fiber, characterized in that: The illumination optical fiber is used to transmit the light beam with small aperture and uniform light intensity distribution emitted by the intraocular illuminator according to any one of claims 1 to 8.

10. The illumination optical fiber according to claim 9, characterized in that The optical fiber filaments of the illumination optical fiber are multi-component glass filaments; the illumination optical fiber is manufactured based on braiding technology and hot-melt technology, and the head and tail of the illumination optical fiber have the same diameter and number of optical fiber filaments.

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