Optical fiber reflection type light spot sighting telescope and preparation method thereof

Abstract

The invention relates to the technical field of optical lenses, and particularly discloses an optical fiber reflection type light spot sighting telescope and a preparation method thereof. One surface of the lens is provided with two grooves of which the axial leads intersect at the circle center of the lens, and the optical fiber and the metal wire are respectively adhered in the two grooves through a micro-assembly technology; natural light or light of a light source enters from one end of the optical fiber, and light spots are formed at the other end of the optical fiber through reflection of the optical fiber; through the assistance of the auxiliary glass, an optical fiber with a desired angle is manufactured, so that the optical fiber can form a standard circular light spot in the circle center of the lens for aiming of the sighting telescope, the light spot is not weakened or dissipated due to the influence of light intensity, and a target can be quickly compared and found even if a lamp is turned on under the pressure of strong light in sunlight, so that quick aiming is completed; the method can be applied to various environments; and the manufacturing cost is low and the efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to a fiber optic reflective light spot sight and a preparation method thereof. Background Art

[0002] The reflective red dot sights currently on the market have tilted reflective beam splitters, and use button batteries to make the light-emitting diodes emit light. The light-emitting structure is relatively large, so it has to be on one side. The light-emitting point is a metal nickel sheet, and a small hole or a cross shape is set on the nickel sheet. The light emitted from the light-emitting point encounters a reflective beam splitter lens coated with a beam splitting film, which reflects a certain proportion of the light, and a virtual image can be seen through the protective lens of the sight. This virtual image is one or more small origin points or a cross pattern. Existing sights also use luminescent powder injected into the lens, and use the light points of the luminescent powder for aiming, but the existing aiming method has poor adaptability to the brightness of the external light. When the brightness of the external light is large, it is more difficult to aim through the light points formed by the luminescent powder;

[0003] In order to solve this problem, foreign countries have developed a method of injecting optical fiber into the scope, making one end of the optical fiber at a certain angle, and converging the reflected light into a light spot, which is not affected by the brightness of the external light. Since the diameter of the optical fiber itself is small, it is difficult to manufacture and process it, and the accuracy is difficult to control. In addition, the manufacturing cost of foreign optical fiber is high, and the light spot formed is not standard, which easily forms a non-standard circle, making it inconvenient to aim. In addition, similar foreign products are not sold in China, and the technology is monopolized in China.

[0004] Therefore, there is an urgent need for a sight with better aiming effect to solve the above problems and use one's own products to replace imports. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a fiber optic reflective light spot sight and a preparation method thereof, so as to solve the problems of non-standard light spots formed by existing fiber optic reflective sights and import substitution.

[0006] In a first aspect, an embodiment of the present invention provides a fiber optic reflective light spot sight, which comprises: a lens: a first groove and a second groove are provided on one side of the lens, the intersection of the axis lines of which is the center of the lens and which are perpendicular to each other; the first groove is wider at both ends and shrinks inwardly from the two ends to the center of the lens; the second groove is wider at one end and shrinks from the wider end and extends to the outer edge of the lens; optical fiber: the optical fiber is arranged in the first groove, and one end of the optical fiber is arranged at a preset angle; metal wire: the metal wire is arranged in the second groove; wherein the width of the narrower part of the first groove and the second groove is between 0.05-0.1mm; the diameters of the metal wire and the optical fiber are both slightly smaller than the width of the narrower part of the first groove and the second groove; the lens comprises a lens made of optically coated glass with zero-grade smoothness; wherein the intersection of the optical fiber and the metal wire is a standard circular light spot formed by reflection of the optical fiber.

[0007] As a preferred technical solution of the embodiment of the present invention, the first groove and the second groove are rectangular grooves.

[0008] As a preferred technical solution of the embodiment of the present invention, the optical fiber and the metal wire are bonded in the first groove and the second groove respectively by micro-assembly.

[0009] In a second aspect, an embodiment of the present invention provides a method for preparing a lens, wherein the method for preparing a sight is applied to a fiber optic reflective light spot sight as described in any one of the above items;

[0010] The method for preparing the sight comprises:

[0011] S1: Preparation of auxiliary glass;

[0012] S2: Clamping: bonding the optical fiber and / or metal wire to the surface to be processed of the auxiliary glass;

[0013] S3: milling: placing the auxiliary glass on the milling machine to mill the optical fiber and / or metal wire;

[0014] S4: Polishing: placing the milled auxiliary glass in a polishing machine to polish the optical fiber and / or metal wire;

[0015] S5: Cleaning: placing the polished auxiliary glass on a cleaning machine to clean the optical fiber and / or metal wire;

[0016] S6: Installation: bonding the optical fiber and metal wire processed as above into the lens respectively;

[0017] Among them, the above processing is all completed through micromachining.

[0018] As a preferred technical solution of an embodiment of the present invention, one side of the auxiliary glass is set according to a preset processing angle of the optical fiber and / or the metal wire.

[0019] As a preferred technical solution of the embodiment of the present invention, the milling machine and the polishing machine are both provided with a plurality of fixture stations, and the fixture stations are used to clamp the auxiliary glass provided with optical fibers and / or metal wires.

[0020] In summary, the beneficial effects of the present invention are as follows:

[0021] In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a fiber optic reflective light spot sight and a preparation method thereof, wherein one side of the lens of the sight is provided with two grooves whose axis lines intersect at the center of the lens, and the optical fiber and the metal wire are respectively pasted in the two grooves by micro-assembly technology; relying on natural light or light from a light source to enter at one end of the optical fiber, a light spot is formed at the other end of the optical fiber by reflection of the optical fiber; with the assistance of auxiliary glass, an optical fiber with a desired angle is manufactured, so that the optical fiber can form a standard circular light spot at the center of the lens for aiming the sight, and this light spot is not weakened or dissipated by the intensity of light, and can be quickly compared and found even under strong light pressure in sunlight, so as to complete rapid aiming; it can be applied to a variety of environments; and the manufacturing cost is low and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0023] Figure 1 The invention is a processing schematic diagram of a fiber optic reflective light spot sight and a method for preparing the same;

[0024] Figure 2 The invention is a schematic diagram of light spot formation of a fiber optic reflective light spot sight and a method for preparing the same;

[0025] Figure 3 The present invention is a schematic diagram of the internal structure of a lens of a fiber optic reflective light spot sight and a method for preparing the same;

[0026] Figure 4 It is a schematic diagram of a lens light spot of a fiber optic reflective light spot sight and a method for making the same;

[0027] Figure 5 It is a schematic diagram of lens cleaning of a fiber optic reflective light spot sight and a method for preparing the same;

[0028] Parts and numbers in the figure: 1-light source, 2-optical fiber, 11-light path, 12-reflection light path, 13-elliptical light spot, 14-circular light spot, 20-lens, 21-first groove, 22-second groove, 30-milling machine, 31-grinding head, 32-workbench, 33-auxiliary glass; cleaning mechanism 60, cleaning blue strip 61. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the various features in the embodiments and examples of the present invention can be combined with each other, all within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1 to 5The embodiment of the present invention provides a fiber optic reflective light spot sight, which includes: a lens 20: a first groove 21 and a second groove 22 are provided on one side of the lens 20, and the intersection of the axis lines is the center of the lens and are perpendicular to each other; the first groove 21 is wider at both ends and shrinks inward from both ends to the center of the lens 20; one end of the second groove 22 is wider, and shrinks from the wider end and extends to the outer edge of the lens 20; optical fiber 2: the optical fiber 2 is arranged in the first groove 21, and one end of the optical fiber 2 is arranged at a preset angle; Wire: The metal wire is arranged in the second groove 0; wherein the width of the narrower part of the first groove 21 and the second groove 22 is between 0.05-0.1mm; the diameters of the metal wire and the optical fiber 2 are both slightly smaller than the width of the narrower part of the first groove 21 and the second groove 22; the lens 20 comprises a lens 20 made of optically coated glass with zero-grade smoothness; since the sight has high requirements for its lens 20, it is suitable for the application scenarios of the sight, and there is no impurity, which does not affect the aiming, so a lens made of optically coated glass with zero-grade smoothness is used;

[0032] The intersection of the optical fiber 2 and the metal wire is a standard circular light spot 14 formed by the optical fiber 2 through reflection; the center of the lens 20 is the intersection of the optical fiber 2 and the metal wire, and the circular light spot 14 for aiming is also formed at this point, which is convenient for aiming;

[0033] The first groove 21 and the second groove 22 are rectangular grooves; the first groove 21 and the second groove 22 are both composed of two parts, the first groove 21 is wider at both ends and narrower in the middle, but the two ends and the middle part of the first groove 21 are both rectangular; the second groove 22 is wider at one end and narrower at one section, and both parts are also rectangular;

[0034] The optical fiber 2 and the metal wire are bonded to the first groove 21 and the second groove 22 respectively by micro-assembly. Since the diameters of the optical fiber 2 and the metal wire, and the groove widths of the first groove 21 and the second groove 22 are very small, they cannot be assembled manually and can only be bonded together by micro-assembly.

[0035] Among them, if the light source passes through one end of the optical fiber 2 and the light emitted is a cylindrical surface wave, then when the light passes through the other end of the optical fiber 2, a circular light spot will be formed. At this time, if the other end of the optical fiber 2 is smooth and perpendicular to the light, the light spot will appear as a standard circle. But in fact, due to certain bending and scattering of light during propagation in the optical fiber 2, it is impossible to achieve a perfect circle. Therefore, in order to make the light spot as close to the standard circle as possible, many factors need to be considered when designing the optical fiber 2, such as the refractive index, diameter, bending radius, surface smoothness, etc. of the optical fiber; therefore, this preset angle is not a fixed value, and needs to be designed and adjusted according to actual conditions; therefore, the angle processing of the optical fiber 2 is more complicated;

[0036] Example 2

[0037] See also Figures 1 to 5 The embodiment of the present invention provides a method for preparing a lens. The method for preparing a sight is applied to the optical fiber reflection type light spot sight as described in Embodiment 1. The method for preparing a sight comprises:

[0038] S1: Preparation of auxiliary glass;

[0039] Since the diameters of the optical fiber 2 and the metal wire are relatively thin, they cannot be processed directly; and there are angle requirements for the optical fiber 2. When the light source is incident, it is reflected by the end of the optical fiber 2 with an angle, and the reflected light forms a light spot. When the angle is processed well, a circular light spot 14 is formed. When the angle is processed poorly, an elliptical light spot 13 is formed, that is, a non-circular light spot, which will affect aiming; therefore, in the lens preparation method of the present invention, the optical fiber 2 and the metal wire in the lens 20 are processed to a preset angle with the assistance of an auxiliary glass 33;

[0040] S2: Clamping: bonding the optical fiber and / or metal wire to the surface to be processed of the auxiliary glass;

[0041] Before processing, the optical fiber and / or metal wire is bonded to the surface to be processed of the auxiliary glass by micro-assembly; the surface to be processed of the auxiliary glass 33 is set according to the preset processing angle required;

[0042] S3: milling: placing the auxiliary glass on the milling machine to mill the optical fiber and / or metal wire;

[0043] For details, please see Figure 1The embodiment of the present invention further provides a milling machine, which includes a main shaft, a grinding head and a workbench; the grinding head 31 is arranged at one end of the main shaft, and the workbench 32 is arranged below the grinding head; the grinding head 31 can perform linear reciprocating motion based on the main shaft; a plurality of fixtures are arranged on the workbench 32, and the auxiliary glass 33 is fixed on the fixtures and processed; by setting the side of the auxiliary glass 33 with an angle to contact the grinding head 31, the grinding head 31 is processed on the side with a preset angle, and the angle of the optical fiber 2 and the metal wire is processed, and the angle of the processed optical fiber 2 and the metal wire will be consistent with the preset angle, thereby completing the processing of the optical fiber 2 and the metal wire;

[0044] The milling process of the milling machine: According to the requirements of the parts, the milling process is designed, and the cutting parameters and tool selection are determined; the parts to be processed are clamped on the workbench to ensure their stability and safety; the position of the workbench and tool of the milling machine is adjusted to match the processing requirements of the parts; the milling machine is turned on and the milling process is performed. According to the set cutting parameters and tools, the burrs and unevenness on the surface of the parts are removed; after the milling is completed, the measuring tool is used for inspection to check whether the size and accuracy of the parts meet the requirements; the milling process of the milling machine is to cut off the material on the surface of the parts by rotating the tool, so as to achieve the purpose of processing. During the milling process, there are two relative motion modes between the tool and the workpiece: plane milling and three-dimensional milling. Plane milling refers to the movement of the tool on the plane to cut off the material on the surface of the workpiece; three-dimensional milling refers to the movement of the tool in three-dimensional space to cut off the material on the surface of the workpiece. During the milling process, the selection of the tool and the setting of the cutting parameters have a great influence on the processing effect and processing quality.

[0045] S4: Polishing: Place the milled auxiliary glass in a polishing machine to polish the optical fiber and / or metal wire; the polishing is to obtain a workpiece with a required surface finish; First, clean: Clean the object to be polished to remove dirt and impurities on the surface; Rough polish: Use a coarse grinding wheel or abrasive belt to perform rough polishing to remove unevenness and scratches on the surface of the object; Then medium polish: Use a medium-sized grinding wheel or abrasive belt to perform medium polishing to remove tiny unevenness and scratches on the surface; Then fine polish: Use a fine grinding wheel or abrasive belt to perform fine polishing to make the surface smoothness of the object meet the requirements; Finally, polish: Use a polishing brush or polishing cloth with polishing liquid to polish to make the surface smoothness and gloss of the object meet the requirements;

[0046] S5: Cleaning: placing the polished auxiliary glass on a cleaning machine to clean the optical fiber and / or metal wire;

[0047] Since the diameters of the optical fiber 2 and the metal wire involved in the present invention are relatively thin, they cannot be cleaned manually; therefore, the present invention embodiment also provides a cleaning mechanism 60, see Figure 5 , the cleaning mechanism 60 includes a plurality of cleaning blue strips 61, a plurality of teeth are arranged on one side of the cleaning blue strips 61, each pair of the cleaning blue strips 61 is arranged with the teeth facing each other, and a cavity is formed between the four teeth of each two pairs of the cleaning blue strips 61; each cleaning mechanism 60 has a plurality of the cleaning blue strips 61, and a plurality of cavities for accommodating workpieces can be formed by the teeth between the cleaning blue strips 61, so that a plurality of workpieces can be cleaned at one time; the auxiliary glass provided with the optical fiber 2 and / or the metal wire is arranged in the cavity, and the cleaning is carried out for 3 minutes by the ion cleaning of the cleaning mechanism 60 (the preset current is 160A, and the shielding is 400V); as the preferred technical solution of this embodiment, the cleaning blue strips 61 are made of metal material;

[0048] S6: Installation: bonding the optical fiber and metal wire processed as above into the lens respectively;

[0049] Among them, the above processing is all completed through micromachining.

[0050] Example 3

[0051] See also Figures 1 to 5 The embodiment of the present invention provides a fiber optic reflective light spot sight and a preparation method thereof, wherein one side of the lens 20 of the sight is provided with two grooves whose axis lines intersect at the center of the lens 20, and the optical fiber 2 and the metal wire are respectively pasted in the two grooves by micro-assembly technology; relying on natural light or light from a light source 1 to enter at one end of the optical fiber 2, a light spot is formed at the other end of the optical fiber 2 by reflection of the optical fiber 2; with the assistance of auxiliary glass 33, the optical fiber 2 of the desired angle is manufactured, so that the optical fiber 2 can form a standard circular light spot at the center of the lens 20 for aiming the sight, and this light spot is not affected by the intensity of light and becomes weak or dissipated, and even under strong light pressure in sunlight, it can quickly compare and find the target and complete rapid aiming; it can be applied to a variety of environments; and the manufacturing cost is low and the efficiency is high.

[0052] Example 4

[0053] See also Figures 1 to 5 , the embodiment of the present invention provides a fiber optic reflective light spot sight; for details, please refer to Figure 2 , one end of the optical fiber 2 is set at a preset angle, and the other end is set in parallel; there is a light source 1 optical fiber injected from the parallel end of the optical fiber, and the light path 11 is injected into the angled end of the optical fiber, and the light path 11 will be reflected by the inclined side of the optical fiber 2, and after being reflected, it will converge into a light spot; Figure 2As shown, when the reflection angle is not processed correctly or there are defects, the light path 11 will form an elliptical light spot 13 after reflection, that is, a non-circular light spot. This light spot is not convenient for aiming and is therefore unqualified. The method of the present invention is used to micro-process the optical fiber 2 to ensure that the angle of the optical fiber 2 is quickly and conveniently processed to the desired angle to form the desired circular light spot to help aiming. Figure 3 and Figure 4 As shown, after the processed optical fiber 2 and the metal wire are installed, the reflected light spot is a circular light spot.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fiber optic reflective light spot sight, characterized in that: The optical fiber reflective light spot sight comprises: Lens: One side of the lens is provided with a first groove and a second groove which are perpendicular to each other and whose axis intersection point is the center of the lens; the first groove is wider at both ends and shrinks inwards from both ends to the center of the lens; the second groove is wider at one end and shrinks from the wider end and extends to the outer edge of the lens; Optical fiber: the optical fiber is arranged in the first groove, and one end of the optical fiber is arranged at a preset angle; Metal wire: the metal wire is arranged in the second groove; Wherein, the width of the narrower part of the first groove and the second groove is between 0.05-0.1 mm; the diameter of the metal wire and the optical fiber are both slightly smaller than the width of the narrower part of the first groove and the second groove; the lens comprises a lens made of optically coated glass with zero-grade finish; Wherein, the optical fiber forms a standard circular light spot through reflection at the intersection of the optical fiber and the metal wire.

2. The fiber optic reflective light spot sight according to claim 1, characterized in that: The first groove and the second groove are rectangular grooves.

3. The fiber optic reflective light spot sight according to claim 1, characterized in that: The optical fiber and the metal wire are bonded in the first groove and the second groove respectively by micro-assembly.

4. A method for preparing a lens, characterized in that: The sight preparation method is applied to the fiber optic reflective light spot sight as described in any one of claims 1 to 3 above, and the sight preparation method comprises: S1: Preparation of auxiliary glass; S2: Clamping: bonding the optical fiber and / or metal wire to the surface to be processed of the auxiliary glass; S3: milling: placing the auxiliary glass on the milling machine to mill the optical fiber and / or metal wire; S4: Polishing: placing the milled auxiliary glass in a polishing machine to polish the optical fiber and / or metal wire; S5: Cleaning: placing the polished auxiliary glass on a cleaning machine to clean the optical fiber and / or metal wire; S6: Installation: bonding the optical fiber and metal wire processed above into the lens respectively; Among them, the above processing is all completed through micromachining.

5. The method for preparing a sight according to claim 4, characterized in that: One side of the auxiliary glass is arranged according to a preset processing angle of the optical fiber and / or the metal wire.

6. The method for preparing a sight according to claim 4, characterized in that: The milling machine and the polishing machine are both provided with a plurality of fixture stations, and the fixture stations are used to clamp the auxiliary glass provided with optical fibers and / or metal wires.

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