Optical transmission device

Abstract

The present invention provides an optical transmission device, which includes a light source, a light shape control element, a lens element and a light receiver, The light shape control element disposed on the light emitting surface of the light source and receives a light emitted by the light source. The light shape control element passes through other reflections at a specific angle. The lens element disposed on the light emitting surface of the light shape control element. The lens element receives and collimates the light for the light receiver to receive the light. This device improves the transmission efficiency of light.

Description

Technical Field

[0001] This invention relates to an optical signal transmission device, and more particularly to an optical signal transmission device that improves light guiding efficiency. Prior Technology

[0002] With the rapid development of modern technology, optical computing technology is increasingly being applied to various high-tech fields. Among them, photonic computers (also known as optical brains) are an advanced computer technology that uses photons as computing units, aiming to replace electrons in traditional electronic computers as the medium for information processing and transmission. Based on the characteristics of photons, such as high-speed transmission, low energy consumption, and large-capacity data processing capabilities, photonic computers are considered to have the potential to change computer architecture and performance. Currently, the development of photonic computers mainly focuses on researching how to use optical components to replace existing electronic components, especially to achieve optoelectronic hybrid systems without completely changing the existing computer architecture. This technological approach is considered the best way to achieve commercial optical computing at this stage.

[0003] In modern electronic computers, transistors serve as fundamental components for logic operations and data processing, providing computer systems with efficient binary data processing capabilities. To replace transistors in photonic computers, existing technology has proposed the concept of optical transistors. Optical transistors are realized using materials with nonlinear refractive indices, including optical fibers and other nonlinear optical media. These materials possess the ability to alter light intensity transmission characteristics; the intensity of incident light can affect the intensity of the light signal transmitted through the material, similar to the gain response of current in a bipolar transistor. Based on this characteristic, optical transistors can be used to construct optical logic gates, which can then be further assembled into core components such as the central processing unit (CPU) of a computer.

[0004] In the development of photonic computers, nonlinear optical materials have been widely used to manipulate light beams and control other light beams. These nonlinear optical materials possess high refractive index response characteristics, allowing for precise adjustment of optical signals by changing the intensity of incident light. Based on this characteristic, nonlinear optical materials are used to fabricate optical logic gates and further assemble them into advanced computing units. This design based on optical logic gates provides photonic computers with the ability to process binary data and also lays the foundation for realizing optical computation.

[0005] Furthermore, most existing research projects focus on developing hybrid optoelectronic systems. The design concept of hybrid optoelectronic systems is to replace some electronic components in existing computers, such as logic gates, memory cells, or data transmission modules, with optical components. This design approach allows optical and electronic elements to work together, combining the advantages of high-speed photonic transmission and stable electronic computation. Hybrid optoelectronic systems are considered a short-term solution for the commercialization of photonic computers because they do not require a radical overhaul of existing computer architecture; instead, they improve system performance by gradually replacing electronic components.

[0006] In optoelectronic hybrid systems, the design of optical components must consider compatibility with electronic components, particularly the matching of signal transmission mechanisms. Due to the differences in physical properties between optical and electronic signals, existing technologies employ signal conversion modules to achieve mutual conversion between optical and electronic signals. While these conversion modules can solve the signal matching problem, they also increase the complexity of system design. Furthermore, energy loss occurs during the operation of these conversion modules, impacting the overall system efficiency. Therefore, achieving efficient optical-to-electronic signal conversion in optoelectronic hybrid systems remains one of the challenges that existing technologies need to address.

[0007] Besides research on optoelectronic hybrid systems, existing technologies have also proposed a concept of a purely optical computer, which completely utilizes optical components to replace all electronic components. However, this concept still faces several technical bottlenecks, one of which is the poor light guide efficiency of its light guide. Light loss occurs in its transmission path, causing errors in the detection or transmission signals. In this case, light guiding technology becomes very important. Therefore, the industry needs a design that can improve the light guiding efficiency of optical signal transmission devices.

[0008] In view of the problems of the prior art, the present invention provides an optical signal transmission device in which a light shape control element and a microlens are disposed on the light-emitting surface of a light source. The light shape control element and the microlens are used to direct the light to the corresponding light receiving unit, thereby reducing mutual interference of light during transmission and improving the light transmission efficiency. Summary of the Invention

[0009] One objective of this invention is to provide an optical signal transmission device comprising a light pattern control element, a lens element, and a light receiver. By utilizing the light pattern control element and the microlens, light is directed to the corresponding light receiving unit, reducing mutual interference between light rays during transmission and improving optical transmission efficiency.

[0010] To achieve the aforementioned objectives and effects, the present invention provides an optical signal transmission device that receives a first signal and converts the first signal into light. The optical signal transmission device includes: a light source, a light shape control element, a lens element, and a light receiver. The light source emits the light, the light shape control element is disposed on the light-emitting surface of the light source, and the light shape control element receives the light. The light shape control element includes a plurality of refractive layers, and the light with an incident angle of 0° to 40° passes through the refractive layers. The lens element covers the light source and is disposed on the light-emitting surface of the light shape control element. The lens element receives and collimates the light. The light receiver is disposed on the light-emitting surface of the lens element, receives the light, and converts it into a second signal corresponding to the first signal. This structure provides an optical signal transmission device that improves light guiding efficiency.

[0011] In one embodiment of the present invention, an optical component is further included, which is disposed between the lens element and the light receiver. The optical component includes an optical waveguide element, one side of which receives the light and the other side of which emits the light.

[0012] In one embodiment of the present invention, the light source includes a plurality of light-emitting units, the light receiver includes a plurality of receiving units, and each of the light-emitting units corresponds to one of the receiving units.

[0013] In one embodiment of the present invention, the invention further includes: a pair of opposing light sources emitting opposing light rays; a pair of opposing light shape control elements disposed on the light-emitting surface of the opposing light sources, the opposing light shape control elements receiving the opposing light rays; a pair of opposing lens elements disposed on the light-emitting surface of the opposing light shape control elements, the opposing lens elements receiving and collimating the opposing light rays; and a pair of opposing light receivers disposed on the light-emitting surface of the opposing lens elements, the opposing light receivers receiving the opposing light rays; wherein the opposing light source, the opposing light shape control element, the opposing lens element, and the opposing light receiver are mirror images of the light source, the light shape control element, the lens element, and the light receiver.

[0014] In one embodiment of the present invention, the optical component is disposed between the opposing lens element and the opposing light receiver, the optical component includes an optical waveguide element that receives the opposing light, and the opposing light is emitted from the side of the optical waveguide element.

[0015] In one embodiment of the present invention, a light pattern control element is disposed between the lens element and the optical assembly, the light pattern control element being for light rays with an incident angle of 0° to 40° to pass through.

[0016] In one embodiment of the present invention, the light shape control element comprises a plurality of refractive layers.

[0017] In one embodiment of the present invention, a focusing element is further included, which is disposed between the lens element and the light receiver and receives the emitted light.

[0018] In one embodiment of the present invention, the optical waveguide element is an optical fiber.

[0019] In one embodiment of the present invention, the optical receiver is electrically connected to a resistor, which is electrically connected to a reference potential.

[0020] In one embodiment of the present invention, a cross optical waveguide element is further included, which crosses with the optical waveguide element to form a cross array of optical signal transmission devices.

[0021] In one embodiment of the present invention, a wavelength control element is further included, which is disposed on the light-incident surface of the light-shaped control element. The wavelength control element allows light with wavelengths of 440nm~470nm, 500nm~530nm and 630nm~660nm to pass through. Simple Explanation of the Diagram

[0022] Figures 1A to 1B: These are schematic diagrams of the structure of the first embodiment of the present invention; Figure 2: This is a schematic diagram of the light source and light receiver transmission of the present invention; Figures 3A to 3B: These are schematic diagrams of the structure of the optical components of the present invention; Figure 4: It is a schematic diagram of the transmission of light from a opposing light source and a light receiver according to one aspect of the present invention; Figure 5: This is a schematic diagram of the optical receiver circuit of the present invention; Figures 6A to 6B are mirror-image structural diagrams of one embodiment of the present invention; Figure 7: It is a schematic diagram of a lens element according to one embodiment of the present invention; Figure 8: It is a schematic diagram of the light shape control element according to one embodiment of the present invention; Figures 9A to 9D: These are schematic diagrams illustrating the transmittance of a light-shaped control element according to one embodiment of the present invention; Figures 10A to 10B: These are schematic diagrams of an optical signal transmission device array according to one embodiment of the present invention; Figure 11: A schematic diagram of a wavelength control element according to one embodiment of the present invention; and Figure 12: It is a schematic diagram of the transmittance of the wavelength control element according to one embodiment of the present invention. Implementation

[0023] In view of the problems of the prior art described above, the present invention provides an optical signal transmission device comprising a light source, a light shape control element, a lens element, and a light receiver. The light shape control element is disposed on the light-emitting surface of the light source and receives a light emitted by the light source, and the light shape control element allows the light to pass through at a specific angle and be reflected by others. The lens element is disposed on the light-emitting surface of the light shape control element, and the lens element receives and collimates the light, allowing the light receiver to receive the light. This device improves the light transmission efficiency and solves the problem of poor light guide efficiency in the prior art.

[0024] Please refer to Figures 1A to 1B, which are schematic diagrams of the structure of the first embodiment of the present invention. As shown in the figures, this embodiment is the first embodiment, which is an optical signal transmission device 1 that receives a first signal Din and converts the first signal Din into a light ray L1. The optical signal transmission device includes a light source 10, a light shape control element 20, and a light receiver 40.

[0025] Referring again to Figures 1A and 1B, as shown in the figures, in this embodiment, the light source 10 emits the light L1. The light shape control element 20 is disposed on the light-emitting surface of the light source 10. The light shape control element 20 receives the light L1 and includes a plurality of refractive layers 21 / 21' (as shown in Figure 8). The light L1 with an incident angle θ1 between 0° and 40° passes through these refractive layers 21 / 21' and directly hits the light receiver 40. The light receiver 40 is disposed on the light-emitting surface of the light shape control element 20. The light receiver 40 receives the light L1 and converts the light L1 into a second signal D out, completing the light transmission path. The second signal D out corresponds to the first signal D in, which is read by subsequent electronic components.

[0026] In one embodiment, the light source 10 is at least one light-emitting diode (LED), and the light source 10 may also be a light-emitting array. The light L1 emitted by the light source 10 includes infrared light, ultraviolet light, red light, green light or blue light. When applied to an optical signal transmission device, the light L1 is preferably infrared light.

[0027] In one embodiment, the photo detector, part of the 40 series, is specifically designed for optical computing modules. It features high sensitivity, fast response, and wide-band absorption characteristics, effectively converting optical signals into electrical signals to achieve efficient optical computing and data processing. This photo detector is particularly suitable for the high-speed optical computing requirements of modern optoelectronic technology.

[0028] The photosensor mainly consists of a photoelectric conversion layer, an electrode structure, and a signal processing unit. The photoelectric conversion layer is the core component, which uses semiconductor materials with high photoelectric conversion efficiency (such as silicon, gallium arsenide, or organic photoelectric materials). It can rapidly release electron-hole pairs when incident photons arrive, forming a photocurrent. The design of the photoelectric conversion layer takes into account the optimization of the spectral response range to cover the wavelength range commonly used by optical computing modules, such as visible light, near-infrared light, and other spectral bands.

[0029] The electrode structure is responsible for collecting the photocurrent generated by the photoelectric conversion layer and transmitting it to the signal processing unit. The electrode material is usually a transparent conductive material with excellent conductivity and minimal light absorption, such as indium tin oxide (ITO) or other metal electrodes. The electrode design optimizes the light incident path and charge transfer efficiency to ensure that signal loss is minimized.

[0030] The signal processing unit is a major technological highlight of this photosensor. It can amplify and process the photocurrent with high precision and generate corresponding digital signals for subsequent logic calculations or information transmission in the optical computing module. This unit integrates a high-efficiency analog-to-digital converter (ADC) circuit and anti-interference design to ensure that the sensor still has stable performance in high-speed optical signal environments.

[0031] The packaging design of the photosensor also takes into account the miniaturization requirements of modern optical computing modules. It adopts highly transparent protective materials and low power consumption design to ensure that the sensor can operate stably for a long time in harsh environments. At the same time, the package has high heat dissipation efficiency and is suitable for high-frequency computing applications.

[0032] Referring again to Figures 1A to 1B, and Figures 8 and 9A to 9D, Figure 8 is a schematic diagram of the light shape control element according to one embodiment of the present invention, and Figures 9A to 9D are schematic diagrams of the transmittance of the light shape control element according to one embodiment of the present invention. As shown in the figures, in this embodiment, the light shape control element 20 is an angle reduction film. The light shape control element 20 allows light L1 with an incident light angle θ1 of 0° to 40° to pass through, while light L1 of other wavelengths is reflected, thereby improving the light extraction efficiency.

[0033] Continuing from the above, in this embodiment, the light shape control element 20 includes a plurality of refractive layers 21, 21'. These refractive layers 21, 21' are stacked in a cross pattern to form a periodic structure. By using materials with high and low refractive indices to refract the light from the light-emitting element, the incident light angle of the light-emitting element is limited, allowing light from other angles to be reflected back to the light-emitting element for reuse and wavelength conversion, thereby improving the overall light emission efficiency. Furthermore, by using different numbers of layers to change the range of filtered wavelengths, the transmittance of red, green, or blue light of the light shape control element 20 is shown in Figures 9A to 9D.

[0034] In one embodiment, the refractive layers 21, 21' of the light shape control element 20 may be composed of two overlapping materials, such as a niobium pentoxide (Nb 2O 5) layer and a silicon oxide (SiO 2) layer or a titanium oxide (TiO 2) layer and a silicon oxide (SiO 2) layer.

[0035] Continuing from the above, the film stack of one embodiment of the material of the light-shaped control element 20 being niobium pentoxide (Nb₂O₅) and silicon oxide (SiO₂) is shown in Table (I) below: Layer number Material Film thickness(nm) 68 SiO 2 30.00 67 Nb₂O₅ 102.23 66 SiO 2 145.72 65 Nb₂O₅ 94.47 64 SiO 2 75.53 63 Nb₂O₅ 21.28 62 SiO 2 43.92 61 Nb₂O₅ 60.17 60 SiO2 80.34 59 Nb 2O 5 48.78 58 SiO2 36.76 57 Nb 2O 5 45.20 56 SiO2 34.45 55 Nb 2O 5 30.29 54 SiO2 60.60 53 Nb 2O 5 155.23 52 SiO2 76.09 51 Nb 2O 5 34.96 50 SiO2 10.96 49 Nb 2O 5 80.69 48 SiO2 110.43 47 Nb 2O 5 68.16 46 SiO2 74.44 45 Nb 2O 5 36.55 44 SiO2 24.01 43 Nb 2O 5 50.21 42 SiO2 33.85 41 Nb 2O 5 32.96 40 SiO2 72.49 39 Nb 2O 5 55.41 38 SiO2 73.82 37 Nb 2O 5 34.48 36 SiO2 40.94 35 Nb 2O 5 53.81 34 SiO2 83.98 33 Nb 2O 5 87.49 32 SiO2 102.21 31 Nb 2O 5 54.85 30 SiO2 28.90 29 Nb 2O 5 50.53 28 SiO2 84.64 27 Nb 2O 5 60.57 26 SiO2 77.78 25 Nb 2O 5 10.40 24 SiO2 61.56 23 Nb 2O 5 69.57 22 SiO2 138.73 21 Nb 2O 5 65.68 20 SiO2 78.41 19 Nb 2O 5 37.05 18 SiO2 44.93 17 Nb 2O 5 58.19 16 SiO2 90.60 15 Nb 2O 5 85.63 14 SiO2 138.12 13 Nb 2O 5 91.13 12 SiO2 92.14 11 Nb 2O 5 72.78 10 SiO2 38.10 9 Nb 2O 5 23.78 8 SiO 2 88.50 7 Nb₂O₅ 85.95 6 SiO 2 89.89 5 Nb₂O₅ 97.96 4 SiO 2 139.96 3 Nb₂O₅ 79.78 2 SiO 2 171.33 1 Nb₂O₅ 85.79

[0036] In Table (I) above, the refractive index of the niobium pentoxide (Nb₂O₅) refractive layer is 2.2~2.4, and the refractive index of the silicon oxide (SiO₂) refractive layer is 1.3~1.5.

[0037] Continuing from the above, the material of the light-shaped control element 20 is titanium dioxide (TiO2) and silicon dioxide (SiO2). An embodiment of the film stack of titanium dioxide (TiO2) and silicon dioxide (SiO2) is shown in Table (II) below: Layer number Material Film thickness(nm) 54 SiO 2 102.01 53 TiO2 143.44 52 SiO 2 59.40 51 TiO2 23.00 50 SiO 2 90.28 49 TiO 2 110.65 48 SiO 2 90.15 47 TiO 2 33.86 46 SiO 2 47.69 45 TiO 2 34.66 44 SiO 2 245.27 43 TiO 2 25.21 42 SiO 2 226.39 41 TiO 2 116.06 40 SiO 2 94.70 39 TiO 2 20.47 38 SiO 2 3.00 37 TiO 2 37.97 36 SiO 2 164.89 35 TiO 2 38.66 34 SiO 2 74.07 33 TiO 2 19.45 32 SiO 2 93.30 31 TiO 2 55.42 30 SiO 2 232.34 29 TiO 2 16.00 28 SiO 2 95.08 27 TiO 2 77.02 26 SiO 2 122.20 25 TiO 2 55.37 24 SiO 2 68.91 23 TiO 2 30.79 22 SiO 2 72.94 21 TiO 2 48.44 20 SiO 2 127.84 19 TiO 2 98.79 18 SiO 2 116.26 17 TiO 2 72.28 16 SiO 2 115.64 15 TiO2 48.55 14 SiO 2 55.82 13 TiO2 27.25 12 SiO 2 88.52 11 TiO2 77.46 10 SiO 2 127.26 9 TiO2 53.13 8 SiO 2 21.02 7 TiO2 23.43 6 SiO 2 96.43 5 TiO2 72.77 4 SiO 2 150.54 3 TiO2 111.45 2 SiO 2 89.61 1 TiO2 98.83

[0038] In Table (II) above, the refractive index of the titanium oxide (TiO2) refractive layer is 2.2~2.4, and the refractive index of the silicon oxide (SiO2) refractive layer is 1.3~1.5.

[0039] Please refer to Figures 3A and 3B, which are schematic diagrams of the structure of the optical component of the present invention. As shown in the figures, this embodiment is based on the first embodiment described above. This embodiment further includes a lens element 30, which is disposed on the light-emitting surface of the light-shaped control element 20. The lens element 30 receives and collimates the light ray L1, so that the light ray L1 directly hits the light receiver 40. The light receiver 40 is disposed on the light-emitting surface of the lens element 30. The relationships of other components in this embodiment are the same as those in the first embodiment described above, so they will not be repeated here.

[0040] Referring again to Figure 1 and Figure 2, Figure 2 is a schematic diagram of the light source and light receiver transmission of the present invention. As shown in the figure, in this embodiment, the light source 10 includes a plurality of light-emitting units 12, and the light receiver 40 includes a plurality of receiving units 42. Each of the light-emitting units 12 corresponds to one of the receiving units 42, that is, a single light-emitting unit 12' corresponds to a single receiving unit 42. For example, as shown in Figure 2, the light source 10 includes a plurality of light-emitting units 12 and 12', and the light receiver 40 includes a plurality of receiving units 42 and 42'. The light L1 emitted by the light-emitting unit 12 of the light source 10 is directed to the receiving unit 42, and the light L1' emitted by the light-emitting unit 12' of the light source 10 is directed to the receiving unit 42'. This structure can avoid mutual interference between the light rays L1 and L1', further reducing the error of the optical signal.

[0041] Continuing from the above, the light-shaped control element 20 can be multiple, each corresponding to one of the light-emitting units 12, 12'. Similarly, multiple lens elements 30, 30' can be provided, each corresponding to one of the light-emitting units 12, 12'.

[0042] Continuing from the above, in one embodiment, the light source 10 can be a matrix light source, and similarly, the light receiver 40 can be a matrix light receiver.

[0043] Continuing from the above, in one embodiment, the lens element 30 is a microlens.

[0044] Referring again to Figures 3A to 3C, as shown in the figures, this embodiment is a second embodiment, which is based on the first embodiment described above. In this embodiment, an optical component 50 is further included. The optical component 50 is disposed between the lens element 30 and the light receiver 40. The optical component 50 includes an optical waveguide element 52.

[0045] Continuing from the above, in this embodiment, the lens element 30 receives and collimates the light ray L1, so that the light ray L1 shines directly onto the optical component 50. The optical component 50 is disposed on one side (image side) of the lens element 30. One side of the optical waveguide element 52 of the optical component 50 receives the light ray L1, and the light ray L1 is emitted from the other side of the optical waveguide element 52.

[0046] In one embodiment, the optical waveguide element 52 is an optical fiber.

[0047] Continuing from the above, optical fiber, also known as optical fiber, is a highly efficient light transmission tool, primarily made of glass or plastic. The design of optical fiber allows it to transmit light through the fiber using the principle of total internal reflection.

[0048] Continuing from the above, in this embodiment, the light source 10 is disposed on one side of the substrate, and that side of the substrate corresponds to the lens element 30. The other side of the substrate may be connected to a heat dissipation component and a power supply, but this is not a limitation.

[0049] Referring again to Figures 3A to 3C and Figure 4, Figure 4 is a schematic diagram of the transmission of a opposing light source and a light receiver according to one embodiment of the present invention. As shown in the figure, this embodiment is based on the second embodiment described above. In this embodiment, the light source 10 includes a plurality of light-emitting units 12 and 12', the light receiver 40 includes a plurality of receiving units 42 and 42', and a plurality of optical components 50 and 50' are provided. The light L1 emitted by the light-emitting unit 12 of the light source 10 is directed to the receiving unit 42 through the optical component 50, and the light L1' emitted by the light-emitting unit 12' of the light source 10 is directed to the receiving unit 42' through the optical component 50'. This structure can avoid mutual interference between the light rays L1 and L1', and further reduce the error of the optical signal.

[0050] Please refer to Figure 5, which is a schematic diagram of the optical receiver circuit of the present invention. As shown in the figure, this embodiment is based on the above embodiments. In this embodiment, the optical receiver 40 is electrically connected to a resistor 44, and the resistor 44 is electrically connected to a reference potential. The optical receiver 40 is a SPAD, which mainly uses the series resistor 44 to achieve the quenching function, so that the optical receiver 40 can be exempted from using the conventional transimpedance amplifier (TIA) and further reduce the overall size.

[0051] Continuing from the above, where V+ is the bias voltage and Vout is the output signal.

[0052] Continuing from the above, the reference potential can be a ground, but this is not a limitation.

[0053] Please refer to Figures 6A and 6B, which are mirror-image structural diagrams of one embodiment of the present invention. As shown in the figures, this embodiment is based on the above embodiments. In this embodiment, it further includes a pair of opposing light sources 10a, a pair of opposing light shape control elements 20a, a pair of opposing lens elements 30a, and a pair of opposing light receivers 40a. The opposing light source 10a emits a pair of opposing light rays L1a. The opposing light shape control element 20a is disposed on the light-emitting surface of the opposing light source 10a and receives the opposing light rays L1a. The opposing lens element 30a... The opposing light source 10a, the opposing light source control element 20a, the opposing lens element 30a receives and collimates the opposing light ray L1a, and the opposing light receiver 40a is disposed on the light source surface of the opposing lens element 30a and receives the opposing light ray L1a. The opposing light source 10a, the opposing light source control element 20a, the opposing lens element 30a, and the opposing light receiver 40a are mirror images of the light source 10, the light source control element 20, the lens element 30, and the light receiver 40, so that this embodiment can transmit light signals bidirectionally.

[0054] Continuing from the above, in the embodiment that includes the optical component 50, the optical component 50 is disposed between the opposing lens element 30a and the opposing light receiver 40a. The optical waveguide element 52 included in the optical component 50 receives the opposing light L1a, and the opposing light L1a is emitted from the side of the optical waveguide element 52 for the opposing light receiver 40a to receive. This allows the embodiment to achieve bidirectional transmission of optical signals using a single optical component 50.

[0055] Please refer to Figure 7, which is a schematic diagram of a focusing element according to one embodiment of the present invention. As shown in the figure, this embodiment is based on the above embodiments. In this embodiment, a focusing element 60 is further included. The lens element 30 receives and collimates the light L1 so that the light L1 shines directly onto the object side of the focusing element 60. The focusing element 60 is disposed on one side of the lens element 60. The object side of the lens element 60 receives the emitted light L1 and focuses the light L1.

[0056] Continuing from the above, in the embodiment having the optical component 50, the optical component 50 is disposed on one side (image side) of the focusing element 60.

[0057] In one embodiment, the focusing element 60 is a focusing lens used to focus the light L1 so that the light L1 can be completely incident into the end of the optical waveguide element 52.

[0058] Please refer to Figures 10A and 10B, which are schematic diagrams of an optical signal transmission device array according to one embodiment of the present invention. As shown in the figures, this embodiment is based on the above embodiments. In this embodiment, the optical signal transmission device 1 is arranged in an array with at least one other optical signal transmission device 1'. The other optical signal transmission device 1' further includes a cross optical waveguide element 52'. The cross optical waveguide element 52' crosses with the optical waveguide element 52 of the optical signal transmission device 1. The optical signal transmission device 1 and the other optical signal transmission device 1' transmit signals with independent optical waveguide elements 52 and cross optical waveguide elements 52', avoiding mutual interference between their signals.

[0059] Please refer to Figures 11 and 12. Figure 11 is a schematic diagram of a wavelength control element according to one embodiment of the present invention, and Figure 12 is a schematic diagram of the transmittance of a wavelength control element according to one embodiment of the present invention. As shown in the figures, this embodiment is based on the above embodiments. In this embodiment, a wavelength control element 70 is further included. The wavelength control element 70 is disposed on the light-incident surface of the light-shaped control element 20. The wavelength control element 70 allows light with wavelengths of 440nm~470nm, 500nm~530nm, and 630nm~660nm to pass through, so as to improve light efficiency.

[0060] In summary, the present invention provides an optical signal transmission device that improves the transmission efficiency of the optical signal transmission device by using a light pattern control element. By limiting the incident light angle of the light-emitting element, light from other angles is reflected back to the light-emitting element for reuse, thereby improving the overall light output efficiency and enabling the light to be transmitted more uniformly and efficiently. This solves the problems of poor light guide rate and light loss in the transmission path in conventional optical signal transmission devices, which cause errors in the detection or transmission signals.

[0061] Therefore, this invention is indeed novel, inventive, and industrially applicable, and undoubtedly meets the requirements for patent application under the Patent Law of our country. Thus, we hereby file a patent application in accordance with the law, and earnestly pray that the Bureau will grant the patent as soon as possible.

[0062] However, the above description is merely one embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, all equivalent changes and modifications made to the shape, structure, features and spirit described in the claims of the present invention should be included within the scope of the claims of the present invention.

[0063] 1: Optical signal transmission device 1': Optical signal transmission device 10: Light source 10a: Opposing light source 12: Light-emitting unit 12': Light-emitting unit 12a: Light-emitting unit 20: Light shape control element 20a: Opposing light pattern control element 21: Refractive layer 21': Refractive layer 30: Lens element 30a: Opposing lens element 40: Optical Receiver 40a: Opposing light receiver 42: Receiving Unit 42': Receiving unit 42a: Receiving unit 44: Resistance 50: Optical Components 50': Optical components 52: Optical waveguide element 52': Cross-waveguide element 60: Concentrating element 70: Wavelength control element D in: First signal D out: Second signal L1: Light L1a: Opposing light ray V+: Bias voltage V out: Output signal θ1: Angle of incidence

Claims

1. An optical signal transmission device that receives a first signal and converts the first signal into light, the optical signal transmission device comprising: a light source emitting the light; a light pattern control element disposed on the light-emitting surface of the light source, the light pattern control element receiving the light, the light pattern control element comprising a plurality of refractive layers, the refractive layers being formed by interleaving high and low refractive index materials to form a periodic structure, allowing a light ray with an incident angle of 0° to 40° to pass through the refractive layers; and a light receiver disposed on the light-emitting surface of the light pattern control element, the light receiver receiving the light and converting it into a second signal corresponding to the first signal; wherein... The refractive index of the high-refractive-index layers is greater than or equal to 2.2, and the refractive index of the low-refractive-index layers is less than or equal to 1.

5.

2. The optical signal transmission device as described in claim 1 further includes a lens element disposed on the light-emitting surface of the light pattern control element, the lens element receiving and collimating the light, and the light receiver receiving the light.

3. The optical signal transmission device as claimed in claim 2 further includes an optical component disposed between the lens element and the optical receiver, the optical component comprising: an optical waveguide element receiving the light on one side and the light emanating from the other side of the optical waveguide element.

4. The optical signal transmission apparatus as claimed in claim 1, wherein the light source comprises a plurality of light-emitting units, the optical receiver comprises a plurality of receiving units, and each of the light-emitting units corresponds to one of the receiving units.

5. The optical signal transmission apparatus as described in claim 3, further comprising: a pair of opposing light sources emitting opposing light rays; a pair of opposing light shape control elements disposed on the light-emitting surface of the opposing light sources, the opposing light shape control elements receiving the opposing light rays, the light shape control elements comprising a plurality of refractive layers and allowing the light rays with an incident angle of 0° to 40° to pass through; a pair of opposing lens elements disposed on the light-emitting surface of the opposing light shape control elements, the opposing lens elements receiving and collimating the opposing light rays; and a pair of opposing light receivers disposed on the light-emitting surface of the opposing lens elements, the opposing light receivers receiving the opposing light rays; wherein... The opposing light source, the opposing light pattern control element, the opposing lens element, and the opposing light receiver are mirror images of the light source, the light pattern control element, the lens element, and the light receiver; and the optical assembly is disposed between the opposing lens element and the opposing light receiver, wherein the optical waveguide element included in the optical assembly receives the opposing light rays, and the opposing light rays are emitted from the side of the optical waveguide element.

6. The optical signal transmission device as claimed in claim 1, wherein the materials of the refractive layers are a combination of niobium pentoxide (Nb2O5) layer and silicon oxide (SiO2) layer or a combination of titanium oxide (TiO2) layer and silicon oxide (SiO2) layer.

7. The optical signal transmission device as claimed in claim 1 further includes a focusing element disposed between the lens element and the light receiver and receiving the emitted light.

8. The optical signal transmission apparatus as claimed in claim 1, wherein the optical receiver is electrically connected to a resistor, which is electrically connected to a reference potential.

9. The optical signal transmission device as claimed in claim 5 further includes a cross optical waveguide element, which crosses each other with the optical waveguide element to form a cross array of the optical signal transmission device.

10. The optical signal transmission device as claimed in claim 5 further includes a wavelength control element disposed on the light-incident surface of the optical signal control element, the wavelength control element allowing light with wavelengths of 440nm~470nm, 500nm~530nm and 630nm~660nm to pass through.

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