Green light and hard light control device based on optical fiber conduction mode

Abstract

The utility model discloses a green light strong light control device based on an optical fiber conduction mode, which comprises a green light source module, a light beam collimation and beam expansion module, a heat dissipation module and a driver, and a connection conduction medium between the green light source and the light beam collimation and beam expansion module is an optical fiber; the light beam collimating and expanding module is used for expanding and collimating the light beams emitted by the green light source module into energy-gathered high-power-density light beams, and meanwhile, a high-brightness optical fiber coupling and homogenizing device in the light beam collimating and expanding module performs high-uniformity scattering on the light beams; the driver is used for carrying out continuous constant current driving and stroboscopic modulation control on the green light source module; the heat dissipation module is used for conducting heat dissipation on the green light source module. The overall structural design is simple, the cost can be effectively controlled, and deployment, installation and operation are convenient; in addition, the optical fiber is adopted as a conducting medium, and high reliability is achieved; and meanwhile, a Morse code sending function is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to green light strong light control device technical field, especially a green light strong light control device based on optical fiber conduction mode. BACKGROUND

[0002] With the development of optical technology, green light strong light control device has been widely used in the field of security and traffic management. Green light can produce significant glare effect at night or in low light environment due to its shorter wavelength and higher energy, so as to achieve the purpose of warning, driving away or temporary blindness. The traditional green light strong light device mainly uses laser as light source, but it has the problems of high cost, large size and high power consumption, which limits its application range. The current green light strong light control device generally has the following problems: short effective distance of laser irradiation; limited irradiation distance: the irradiation distance of many green light strong light control devices is short, which cannot meet the demand of long distance glare effect; complex structure, inconvenient operation: the structure of some devices is complex and the operation is cumbersome, which is not convenient for on-site rapid deployment and use; high cost: high-performance green light strong light control device usually has high cost, which limits its application in some budget limited scenes; lack of morse code communication function, etc.

[0003] In recent years, the progress of optical fiber transmission technology provides a new solution for green light strong light control device. Optical fiber transmission has the advantages of low transmission loss, strong anti-electromagnetic interference ability, light weight and high flexibility, which can effectively improve the overall performance of the system. By combining green light source with optical fiber transmission, long-distance and precise control of glare effect can be realized, while reducing the complexity and cost of the system. In addition, with the development of micro-electromechanical systems and photoelectric detection technology, the intelligentization and miniaturization of green light strong light control device also become possible. By integrating optical elements, detectors and control circuits, precise control of green light output can be realized, improving the response speed and stability of the system. Therefore, the research and development of green light strong light control device based on optical fiber transmission mode has important practical significance and broad application prospect. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems existing in the prior art, and provides a green light strong light control device based on optical fiber transmission mode.

[0005] The technical solution for realizing the utility model is as follows: a green light strong light control device based on optical fiber transmission mode, the device comprises a green light source module, a beam collimation and expansion module, a heat dissipation module and a driver, and the connection transmission medium between the green light source and the beam collimation and expansion module is optical fiber.

[0006] The light beam collimation and expansion module is used for expanding and collimating the light beam emitted by the green light source module into an energy-concentrated high-power-density light beam, and a high-brightness fiber-coupled homogenization device inside the light beam collimation and expansion module performs high-uniformity scattering on the light beam.

[0007] The driver is used for continuously driving and frequency flash modulating and controlling the green light source module.

[0008] The heat dissipation module is used for dissipating heat of the green light source module.

[0009] Further, the green light source module comprises two groups of green laser light source arrays, a polarization beam combiner, a high-reflection filter, a half filter, an array light beam collector and a coupling lens.

[0010] The two groups of green laser light source arrays are arranged in parallel, each group of the green laser light source array comprises seven laser light source single tubes, and the seven laser light source single tubes are arranged at six vertices and a center position of a regular hexagon to form a planar close-packed distribution.

[0011] The laser light beams emitted by the laser light source single tubes in one group of the green laser light source arrays are translated and contracted to form close packing after the array light beam collector.

[0012] The exiting light after the array light beam collector is rotated by 90° in sequence after the half filter and the high-reflection filter, and is combined with the laser light beams emitted by the other group of the green laser light source arrays into a laser beam through the polarization beam combiner.

[0013] The laser beam is coupled and focused into the optical fiber through the coupling lens.

[0014] Further, the power of the laser light source single tube is 1.5 W.

[0015] Further, the laser light source single tube is a green laser light source light-emitting diode.

[0016] Further, the core diameter of the optical fiber is 105 μm, and the NA is 0.15.

[0017] Further, the light beam collimation and expansion module adopts an inverted Galileo telescope form to expand the light beam.

[0018] Further, the driver peripheral interface is used for receiving and transmitting the instruction data sent by the user to adjust the time length and interval period of light emission of the green light source module, so as to realize the sending of Morse code.

[0019] Further, the driver is further provided with a communication control interface circuit, which is used for realizing the receiving and execution of external instructions, state feedback and remote control.

[0020] Further, the driver is also provided with a protection circuit for protecting the green light source module from external interference.

[0021] Compared with the prior art, the utility model has the following remarkable advantages:

[0022] (1) The overall structure design is simple, the cost is effectively controlled, and the deployment and installation operation are convenient; the green laser spot has an electric adjustment function.

[0023] (2) The connection and conduction medium between the green light source and the beam collimation and expansion module is an optical fiber, the optical fiber conduction has extremely low transmission loss, can ensure that the green light signal still maintains high intensity after long-distance transmission; the optical fiber conduction is not affected by electromagnetic interference and can work stably in a complex electromagnetic environment; the flexibility of the optical fiber makes the design and installation of the device more flexible and can adapt to various complex environmental requirements; the device based on optical fiber conduction is more convenient to maintain and upgrade, and the system performance can be optimized by replacing or adjusting the optical fiber; the optical fiber conduction device can work normally in extreme temperature, humidity and other harsh environments, and has high reliability;

[0024] (3) The device of the utility model utilizes a laser emission device and controls the length and interval period of the laser lighting, and can realize the function of sending Morse code to a remote place.

[0025] The utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall electrical architecture diagram of the green light strong light control device based on the optical fiber conduction mode of the utility model.

[0027] Figure 2 It is a schematic diagram of connecting the green light source and the beam collimation and expansion module through an optical fiber in an embodiment.

[0028] Figure 3 It is a schematic diagram of the green light source module in an embodiment.

[0029] Figure 4 It is a schematic diagram of expanding the beam in the form of an inverted Galileo telescope in an embodiment.

[0030] Figure 5 It is a schematic diagram of setting the expansion ratio to 6 times to realize a far-field divergence angle of 0.23° in an embodiment,

[0031] Figure 6 It is a wave aberration diagram obtained by optical simulation in an embodiment.

[0032] Figure 7The uniformity effect and the transverse 10-point energy value curve diagram of the light spot irradiated by the device of the embodiment of the utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0034] In one embodiment, in combination with Figure 1 and Figure 2 , a green light strong light control device based on optical fiber transmission mode is provided, which comprises a green light source module, a beam collimation and expansion module, a heat dissipation module and a driver, and the connection transmission medium between the green light source and the beam collimation and expansion module is an optical fiber;

[0035] The beam collimation and expansion module is used to expand and collimate the light beam emitted by the green light source module into a high-power density light beam with energy aggregation, and the high-brightness optical fiber coupling homogenization device inside the beam collimation and expansion module performs high-uniformity scattering on the light beam;

[0036] The driver is used to continuously and constantly drive and frequency flash modulate control the green light source module.

[0037] The heat dissipation module is used to dissipate heat for the green light source module.

[0038] Further, in one of the embodiments, in combination with Figure 3 , the green light source module comprises two groups of green laser light source arrays 1, an array light beam collector 2, a half filter 3, a high reflection filter 4, a polarization beam combiner 5 and a coupling lens.

[0039] The two groups of green laser light source arrays are arranged in parallel, each group of the green laser light source array 1 comprises 7 laser light source single tubes, and the 7 laser light source single tubes are respectively arranged at the six vertices and the center position of a regular hexagon to form a planar close-packed distribution.

[0040] The laser light beams emitted by the laser light source single tubes in one group of green laser light source arrays are translated and contracted after the array light beam collector 2 to form a close packing (so as to reduce the interval between the light beams and eliminate the dark area between the light beams under the condition that the light beam divergence angle remains unchanged);

[0041] The emergent light after the array light beam collector 2 is rotated by 90° in turn through the half filter 3 and the high reflection filter 4, and is combined with the laser light beams emitted by the other group of green laser light source arrays through the polarization beam combiner 5 to form a laser beam.

[0042] The laser beam is coupled and focused into the optical fiber 6 through the coupling lens.

[0043] Preferably, in some embodiments, the power of the laser light source single tube is 1.5 W.

[0044] Preferably, in some embodiments, the laser light source single tube is a green laser light source light emitting diode.

[0045] Preferably, in some embodiments, the core diameter of the optical fiber is 105 μm, and the NA is 0.15.

[0046] Preferably, in some embodiments, in order to meet the laser spot diameter size after a certain irradiation distance, the beam collimation and expansion module adopts an inverted Galileo telescope form for beam expansion, as shown in Figure 4 .

[0047] Preferably, in some embodiments, the driver peripheral interface is used to receive and transmit the instruction data sent by the user to adjust the time length and interval period of the green light source module light emission, so as to realize the sending of Morse code.

[0048] Further, in one of the embodiments, the driver is further provided with a communication control interface circuit for realizing the reception and execution of external instructions, state feedback and remote control, and a protection circuit for protecting the green light source module from being disturbed by external factors (external surge, power supply noise, etc.). The high-efficiency and high-reliability control and driving of the light emitting diode can be realized, the service life thereof is prolonged, and the reliability of the device is improved.

[0049] As a specific example, the utility model is further verified and described.

[0050] Setting the expansion ratio to 6 times can realize a far-field divergence angle of 0.23°, as shown in Figure 5 . The wave aberration diagram obtained by optical simulation is as shown in Figure 6 . It can be known from Figure 6 that the total length of the system is about 111 mm, the wave aberration of the collimation and expansion system is about 0.16 wavelengths, which is less than one fourth of the wavelength, and meets the aberration requirement of the collimation system. After special optical fiber coupling design, the exit beam is a flat-top output of the Gaussian distribution spot shaping, and the spot uniformity is good. The uniformity effect and the transverse 10-point energy value curve of the irradiated spot are as shown in Figure 7 . Under the standard meteorological conditions, the irradiation distance is ≥2 km (the center maximum illuminance is ≥50 lx); the irradiation distance is ≥10 km (the spot diameter is ≥40 m, and the center maximum illuminance is ≥1 lx); the irradiation distance is ≥15 km (the center maximum illuminance is ≥0.25 lx); and the irradiation distance is ≥3 km (the spot diameter is ≥70 m at 3 km, and the center maximum illuminance is ≥1 lx).

[0051] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A green light strong light control device based on optical fiber transmission mode, characterized in that, The device comprises a green light source module, a light beam collimation and expansion module, a heat dissipation module and a driver, and the connecting conductive medium between the green light source and the light beam collimation and expansion module is an optical fiber; The light beam collimation and expansion module is used to expand and collimate the light beam emitted by the green light source module into a high-power density light beam with energy aggregation, and the high-brightness fiber coupling homogenization device inside the light beam collimation and expansion module performs high-uniformity scattering on the light beam; The driver is used to continuously and constantly drive and frequency flash modulate control the green light source module; The heat dissipation module is used to dissipate heat for the green light source module.

2. The green light intensity control device based on optical fiber conduction according to claim 1, characterized in that, The green light source module comprises two groups of green laser light source arrays, a polarization beam combiner, a high-reflective filter, a half filter, an array light beam collector and a coupling lens; The two groups of green laser light source arrays are arranged in parallel, each group of the green laser light source array comprises 7 laser light source single tubes, and the 7 laser light source single tubes are arranged at the six vertices and the center position of a regular hexagon to form a planar close-packed distribution; The laser light beams emitted by the laser light source single tubes in one group of the green laser light source array are translated and contracted to form close packing after the array light beam collector; The exit light after the array light beam collector is rotated by 90° in turn after the half filter and the high-reflective filter, and is combined with the laser light beams emitted by the other group of the green laser light source array into a laser beam through the polarization beam combiner; The laser beam is coupled and focused into the optical fiber through the coupling lens.

3. The green light intensity control device based on optical fiber conduction according to claim 2, characterized in that, The power of the laser light source single tube is 1.5 W.

4. The green light intensity control device based on optical fiber conduction according to claim 2, characterized in that, The laser light source single tube is a green laser light source light emitting diode.

5. The green light intensity control device based on optical fiber conduction according to claim 1, characterized in that, The core diameter of the optical fiber is 105 μm, and the NA is 0.

15.

6. The green light intensity control device based on optical fiber conduction according to claim 1, characterized in that, The light beam collimation and expansion module adopts an inverted Galileo telescope form to expand the light beam.

7. The green light intensity control device based on optical fiber conduction according to claim 1, characterized in that, The driver peripheral interface is used to receive and transmit the instruction data sent by the user to adjust the time length and interval period of the light emission of the green light source module, so as to realize the sending of Morse code.

8. The green light intensity control device based on optical fiber conduction according to claim 1, characterized in that, The driver is also provided with a communication control interface circuit for realizing the reception and execution of external instructions, state feedback and remote control.

9. The green light intensity control device based on optical fiber conduction mode according to claim 8, characterized in that, The driver is also provided with a protection circuit for protecting the green light source module from external interference.

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