Optical three-way cube for reflecting, splitting and filtering lenses

Abstract

The utility model discloses a kind of optical three-way cubic blocks for reflecting, light splitting and optical filter lens, including the solid rectangular cubic block of light-tight, further include: the through hole of the solid rectangular cubic block is penetrated from top to bottom;Dull hole is located in the one side of the solid rectangular cubic block, the depth of the dull hole is to the central axis of through hole, and vertical intersection three-way structure is formed with through hole;Narrow slit is vertically inwards arranged from the outer wall of the solid rectangular cubic block;Through hole, dull hole and narrow slit are orthogonally arranged in space three-dimensional direction.The utility model belongs to optical filter technical field, specifically refers to the optical three-way cubic block for reflecting, light splitting and optical filter lens, to reduce processing complexity, improve optical path accuracy, eliminate light leakage, and at least solve the problem that optical three-way exists when using incident light incidence angle adjustment is not good resulting in optical path deviation or efficiency decline, and signal attenuation, poor flexibility problem.

Description

Technical Field

[0001] This utility model belongs to the field of optical filter technology, specifically referring to an optical three-way cubic block used for reflective, beam-splitting and filtering lenses. Background Technology

[0002] Optical tri-junctions (reflectors, beam splitters, and filters) are core component combinations in optical systems for controlling the optical path. Their applications include: 1. Reflectors, primarily mirrors, achieving high reflectivity through metal coatings (such as aluminum or silver) or dielectric films to change the direction of the light path; 2. Beam splitters, including beam splitters (flat mirrors / prisms) and polarizing beam splitters (PBS), which divide the intensity or polarization state of incident light according to a specific ratio; 3. Filters, including dichroic mirrors, bandpass filters, and long / short pass filters, which selectively reflect specific wavelengths of light and transmit other specific wavelengths through interference, reflection, or absorption principles. All three types of components are prone to problems such as poor adjustment of the incident light angle, leading to optical path deviation, reduced efficiency, signal attenuation, and poor flexibility. Currently, most optical tees on the market use a separate structure, which consists of two diagonally cut triangular blocks joined together to form a cube. Before joining, a reflective lens is glued to the bevel of the triangular block. This results in high processing complexity, difficulty in controlling the precision of the bevel, large error in the angle of the reflective lens and the risk of it falling off, misalignment and large gaps between the two triangular blocks, and easy light leakage, affecting the filtering effect. The problems mentioned above are even more difficult to overcome. Utility Model Content

[0003] This invention aims to provide an integrated solution for optical reflection, transmission, beam splitting, and filtering, and at least solves the problems of optical path deviation or efficiency reduction caused by poor adjustment of the incident light angle when using optical tees, as well as signal attenuation and poor flexibility. Furthermore, the optical tees of this invention are integrally formed, which greatly reduces the processing complexity and ensures processing accuracy. Since the reflector is installed in a narrow slit, there is no risk of detachment, no bonding error, and no light leakage, which enhances light utilization and greatly improves the filtering effect.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model proposes an optical three-way cubic block for reflective, beam-splitting, and filter lenses, comprising an opaque solid rectangular cubic block, and further comprising:

[0005] A through-hole running from top to bottom through the solid rectangular cube;

[0006] A dumb hole located on one side of the solid rectangular cube, the depth of the dumb hole extends to the central axis of the through hole, and forms a T-junction structure perpendicular to the through hole;

[0007] A narrow slit is vertically recessed into the outer wall of the solid rectangular cube, and the through hole, the blind hole, and the narrow slit are orthogonally arranged in the three-dimensional spatial direction.

[0008] Furthermore, the slit is inclined at 45° and extends vertically into the interior only from one side wall of the solid rectangular cube, and its length and depth cover the diameter at the intersection of the through hole and the dumb hole.

[0009] Furthermore, the narrow slit vertically penetrates the solid rectangular cube, and its length covers the diameter at the intersection of the through hole and the dumb hole.

[0010] Furthermore, the through hole is either a square hole or a round hole.

[0011] Furthermore, the through hole is a threaded circular hole.

[0012] Furthermore, the opening position of the through hole is provided with a countersunk platform one, which extends into the inner wall of the solid rectangular cube to form an optical component embedded groove one. The opening position of the dumb hole is provided with a countersunk platform two that is perpendicular to the countersunk platform one, which extends into the inner wall of the solid rectangular cube to form an optical component embedded groove two, and the optical component embedded groove two is perpendicular to the optical component embedded groove one.

[0013] The beneficial effects of this utility model using the above structure are as follows: by setting a large through hole that runs vertically through the top and bottom and a dumb hole with a vertical through hole, and by using a narrow slit that is inclined at 45° through or without through the solid rectangular cube, the glass lens is installed in the corresponding position, which realizes the illumination of the observed sample. At the same time, the light emitted or reflected by the sample is directed upward through the lens, and the stray light is filtered out by the filter above before being emitted. This overcomes the problems of light path deviation or efficiency reduction, as well as the problems of signal attenuation and poor flexibility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Among them, 1. solid rectangular cube, 2. through hole, 21. countersunk platform one, 211. optical component embedded groove one, 3. dumb hole, 31. countersunk platform two, 311. optical component embedded groove two, 4. narrow slit. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 and Figure 2 :

[0019] An optical tee cube for reflective, beam-splitting, and filter lenses includes an opaque solid rectangular cube 1, and further includes: a through hole 2 penetrating the solid rectangular cube 1 from top to bottom, the through hole 2 being either a square hole or a round hole, and the through hole 2 being a threaded round hole; a dumb hole 3 located on one side of the solid rectangular cube 1, the depth of the dumb hole 3 extending to the central axis of the through hole 2, and forming a tee structure intersecting with the through hole 2; and a narrow slit 4 extending vertically inward from the outer wall of the solid rectangular cube 1. The through hole 2, dumb hole 3, and narrow slit 4 are orthogonally arranged in three-dimensional space. The narrow slit 4 can be inclined at 45° and extends vertically inward only from one side wall of the solid rectangular cube 1, its length and depth being sufficient to cover the diameter at the intersection of the through hole 2 and the dumb hole 3, or it can be arranged vertically through the solid rectangular cube 1.

[0020] Please see Figure 2 :

[0021] The opening of the through hole 2 is provided with a countersunk platform 21, which extends into the inner wall of the solid rectangular cube 1 to form an optical component recess 211. The opening of the dumb hole 3 is provided with a countersunk platform 31 that is perpendicular to the countersunk platform 21, which extends into the inner wall of the solid rectangular cube 1 to form an optical component recess 311, and the optical component recess 311 is perpendicular to the optical component recess 211.

[0022] In practical use, a glass lens is installed in the 45° narrow slit 4 of the solid rectangular cube 1 to reflect / split the light downwards at 45° and allow the light to pass through the through hole 2 from bottom to top. Then, corresponding glass lenses are installed on the recessed platform 21 and recessed platform 31 in the through hole 2 and the dead hole 3 of the solid rectangular cube 1. The glass lenses are respectively embedded in the optical component recessed groove 211 and the optical component recessed groove 311 to filter out the light of the required wavelength.

[0023] In actual use, light enters through the blind hole 3 of the solid rectangular cube 1 after it has been manufactured and installed. After being filtered by the filter lens on the second sinking platform 31, it is reflected by the reflective / beam-splitting glass lens installed in the 45° narrow slit 3 and then illuminates the sample below the solid rectangular cube 1. The light emitted or reflected by the sample passes through this lens and is directed upwards. After being filtered by the filter lens on the first sinking platform 21 to remove stray light, it is directed to the detector.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0025] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An optical tee cube for reflecting, splitting and filtering lenses, comprising an opaque solid rectangular cube (1), characterized in that, It also includes the following features: Through hole (2) from top to bottom through the solid rectangular cube (1); A dumb hole (3) is located on one side of the solid rectangular cube (1). The depth of the dumb hole (3) extends to the central axis of the through hole (2) and forms a three-way structure that intersects perpendicularly with the through hole (2). A narrow slit (4) is vertically inserted into the outer wall of the solid rectangular cube (1), and the through hole (2), the dumb hole (3) and the narrow slit (4) are orthogonally arranged in the three-dimensional space.

2. The optical tee cube for reflecting, splitting, and filtering lenses according to claim 1, characterized in that: The slit (4) is inclined at 45° and extends vertically into the interior from only one side wall of the solid rectangular cube (1), and its length and depth cover the diameter at the intersection of the through hole (2) and the dumb hole (3).

3. The optical tee cube for reflecting, splitting, and filtering lenses according to claim 1, characterized in that: The narrow slit (4) penetrates vertically through the solid rectangular cube (1), and its length covers the diameter at the intersection of the through hole (2) and the dumb hole (3).

4. The optical tee cube for reflecting, splitting, and filtering lenses according to claim 2 or 3, characterized in that: The through hole (2) is either a square hole or a round hole.

5. The optical tee cube for reflecting, splitting, and filtering lenses according to claim 4, characterized in that: The through hole (2) is a threaded round hole.

6. The optical tee cube for reflecting, splitting, and filtering lenses according to claim 4, characterized in that: The opening of the through hole (2) is provided with a recessed platform (21), which extends into the inner wall of the solid rectangular cube (1) to form an optical component embedded groove (211). The opening of the dumb hole (3) is provided with a recessed platform (31) perpendicular to the recessed platform (21), which extends into the inner wall of the solid rectangular cube (1) to form an optical component embedded groove (311), and the optical component embedded groove (311) is perpendicular to the optical component embedded groove (211).

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