Solar red dot sighting telescope

Abstract

The utility model relates to a solar red dot sighting telescope which comprises a lens body, a lens on the surface of the lens body and a circuit module in the lens body. The circuit module comprises a photosensitive sensor, an MCU, a light emitting diode, a solar cell and a storage battery. The MCU is connected with the light emitting diode, the solar cell and the storage battery. The photosensitive sensor is used for sensing light intensity, converting light signals into electric signals and sending the electric signals to the MCU, and the MCU is used for switching the solar cell and the storage battery to supply power to the light emitting diode. Compared with the prior art that the solar battery is switched to supply power according to battery voltage, the solar battery or the storage battery is switched to supply power according to the light intensity sensed by the photosensitive sensor, and the reaction is more sensitive. The storage battery and the solar battery are matched for power supply, so that the red dot sighting telescope can continuously work for a long time without worrying about insufficient electric quantity, frequent charging is avoided, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of red dot sights, in particular to a solar-powered red dot sight. Background Art

[0002] A red dot sight is a non-magnified optical sight with a bright aiming point (usually a red dot). Some telescopes and "point-and-shoot cameras" with built-in viewfinders also have red dot sights. The red dot sight indicates the target through a red dot of light, allowing the operator to quickly aim the sight at the target.

[0003] Existing red dot sights have the following defects: Traditional red dot sights usually rely on battery power supply, and in actual use, they need to be frequently charged or replaced, which affects the convenience and user experience of red dot sights. Some red dot sights switch to solar cell power supply according to the battery voltage, which requires the setting of voltage detection units and single-chip microcomputers and other equipment. The automatic power supply switching circuit design is complex and the response speed is slow. Utility Model Content

[0004] In view of this, it is necessary to provide a solar red dot sight to solve the above-mentioned defects of the prior art.

[0005] In order to solve the above problems, in the first aspect, the utility model provides a solar red dot sight, including a mirror body, a lens on the surface of the mirror body and a circuit module in the mirror body; the circuit module includes a photosensitive sensor, an MCU, a light-emitting diode, a solar cell and a battery, and the MCU is respectively connected to the light-emitting diode, the solar cell and the battery; the photosensitive sensor is used to sense the light intensity and convert the light signal into an electrical signal and send it to the MCU, and the MCU is used to switch the solar cell and the battery to supply power to the light-emitting diode.

[0006] Preferably, the circuit module further includes a MOS tube, a diode D1, a diode D2, a capacitor C1, a resistor R1, a resistor R2, a resistor R3 and a resistor R4;

[0007] The storage battery is connected to the source of the MOS tube, the drain of the MOS tube is connected to the positive electrode of the diode D1, the gate of the MOS tube is connected to the SW pin of the MCU, the negative electrode of the diode D1 is connected to the negative electrode of the diode D2, the positive electrode of the diode D2 is respectively connected to the solar cell and one end of the resistor R3, the other end of the resistor R3 is respectively connected to one end of the resistor R4 and the FB pin of the MCU, the other end of the resistor R4 is respectively connected to one end of the capacitor C1, the negative electrode of the light-emitting diode and ground, the other end of the capacitor C1 is respectively connected to the VDD pin of the MCU and one end of the resistor R1, the other end of the resistor R1 is respectively connected to the negative electrode of the diode D1 and the negative electrode of the diode D2, the positive electrode of the light-emitting diode is connected to the OUTPUT pin of the MCU, one end of the photosensor is grounded, the other end of the photosensor is respectively connected to the COM pin of the MCU and one end of the resistor R2, and the other end of the resistor R2 is connected to the REF pin of the MCU.

[0008] The beneficial effect of adopting the above scheme is: the solar red dot sight provided by the utility model adopts a solar cell and a photosensor to sense the light intensity, controls the power supply mode through the MCU, switches the solar cell and the battery to supply power to the light-emitting diode, realizes the mixed power supply of the solar cell and the internal battery, and prolongs the life of the battery.

[0009] Compared with the prior art that switches solar cell power supply according to battery voltage, the utility model switches solar cell or storage battery power supply according to the light intensity sensed by the photosensitive sensor, and the response is more sensitive. The combination of storage battery and solar cell power supply can enable the red dot sight to work continuously for a long time without worrying about insufficient power, avoiding frequent charging, and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the appearance structure of the solar-powered red dot sight provided by the utility model;

[0011] Figure 2 The utility model discloses a circuit diagram of a circuit module in a solar-powered red dot sight.

[0012] In the attached drawings, 1-mirror body; 2-lens; 3-photosensitive sensor; 4-solar cell. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0014] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0015] At present, traditional red dot sights usually rely on battery power supply, and in actual use, they need to be frequently charged or replaced, which affects the convenience and user experience of red dot sights. Some red dot sights switch to solar cell power supply according to the battery voltage, which requires the setting of voltage detection units and single-chip microcomputers and other equipment. The automatic power supply switching circuit design is complex and the response speed is slow.

[0016] In view of this, the utility model provides a solar red dot sight, which is powered by a battery and a solar cell, so that the red dot sight can work continuously for a long time without worrying about insufficient power, avoiding frequent charging, and improving the safety of use. The following will be explained and introduced through multiple embodiments.

[0017] Figure 1 This is a schematic diagram of the appearance structure of a solar-powered red dot sight provided by the utility model. Figure 1 As shown, the solar red dot sight includes a body 1, a lens 2 on the surface of the body 1, and a circuit module inside the body 1; the circuit module includes a photosensitive sensor 3, an MCU (Microcontroller Unit), a light emitting diode (Light Emitting Diode, LED for short), a solar cell 4 and a battery, and the MCU is connected to the light emitting diode, the solar cell 4 and the battery respectively. Figure 1 The solar cell 4 is mounted on the surface of the mirror body 1. The photosensitive sensor 3 is used to sense the light intensity and convert the light signal into an electrical signal and send it to the MCU, and the MCU is used to switch the solar cell and the battery to supply power to the light emitting diode.

[0018] Specifically, the photosensitive sensor 3 is installed on the outer surface of the body 1 of the solar red dot sight, and the photosensitive sensor 3 senses the change in the intensity of the light in the environment. When the intensity of the ambient light changes, the photosensitive sensor 3 converts this information into an electrical signal and sends it to the main control chip MCU. After receiving the electrical signal from the photosensitive sensor 3, the MCU will determine whether it is necessary to switch the power supply mode of the light-emitting diode LED according to the change in light intensity. In this embodiment, the MCU switches the power supply mode of the light-emitting diode LED, and uses solar energy for power supply in a brighter environment, and switches to battery power supply in a darker environment, so as to give full play to the use frequency of the solar cell, minimize the loss of the battery, and achieve the purpose of better extending the service life of the solar red dot sight while ensuring accuracy and safety performance.

[0019] Preferably, the MCU model may be STM8L151C8T6. The light sensor may be a photoresistor.

[0020] Figure 2 This is the circuit diagram of the circuit module in the solar red dot sight provided by the utility model, refer to Figure 2 , the circuit module also includes a MOS tube, a diode D1, a diode D2, a capacitor C1, a resistor R1, a resistor R2, a resistor R3 and a resistor R4;

[0021] The battery ( Figure 2 The internal battery in the middle is connected to the source of the MOS tube, the drain of the MOS tube is connected to the anode of the diode D1, the gate of the MOS tube is connected to the SW pin of the MCU, the cathode of the diode D1 is connected to the cathode of the diode D2, the anode of the diode D2 is respectively connected to the solar cell and one end of the resistor R3, the other end of the resistor R3 is respectively connected to one end of the resistor R4 and the FB pin of the MCU, the other end of the resistor R4 is respectively connected to one end of the capacitor C1, the cathode of the light-emitting diode and grounding, the other end of the capacitor C1 is respectively connected to the VDD pin of the MCU and one end of the resistor R1, the other end of the resistor R1 is respectively connected to the cathode of the diode D1 and the cathode of the diode D2, the anode of the light-emitting diode is connected to the OUTPUT pin of the MCU, one end of the photosensor is grounded, the other end of the photosensor is respectively connected to the COM pin of the MCU and one end of the resistor R2, and the other end of the resistor R2 is connected to the REF pin of the MCU.

[0022] The solar red dot sight provided by the utility model adopts a solar cell and a photosensor to cooperate, senses the light intensity through the photosensor, controls the power supply mode through the MCU, switches the solar cell and the battery to supply power to the light emitting diode, realizes the mixed power supply of the solar cell and the internal battery, and prolongs the life of the battery.

[0023] Compared with the prior art that switches solar cell power supply according to battery voltage, the utility model switches solar cell or storage battery power supply according to the light intensity sensed by the photosensitive sensor, and the response is more sensitive. The combination of storage battery and solar cell power supply can enable the red dot sight to work continuously for a long time without worrying about insufficient power, avoiding frequent charging, and improving the safety of use.

[0024] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are 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 process, method, article or device. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A solar-powered red dot sight, characterized in that: It includes a mirror body, a lens on the surface of the mirror body and a circuit module inside the mirror body; the circuit module includes a photosensitive sensor, an MCU, a light-emitting diode, a solar cell and a battery, and the MCU is connected to the light-emitting diode, the solar cell and the battery respectively; the photosensitive sensor is used to sense the light intensity and convert the light signal into an electrical signal and send it to the MCU, and the MCU is used to switch the solar cell and the battery to supply power to the light-emitting diode.

2. The solar-powered red dot sight according to claim 1, characterized in that: The circuit module also includes a MOS tube, a diode D1, a diode D2, a capacitor C1, a resistor R1, a resistor R2, a resistor R3 and a resistor R4; The storage battery is connected to the source of the MOS tube, the drain of the MOS tube is connected to the positive electrode of the diode D1, the gate of the MOS tube is connected to the SW pin of the MCU, the negative electrode of the diode D1 is connected to the negative electrode of the diode D2, the positive electrode of the diode D2 is respectively connected to the solar cell and one end of the resistor R3, the other end of the resistor R3 is respectively connected to one end of the resistor R4 and the FB pin of the MCU, the other end of the resistor R4 is respectively connected to one end of the capacitor C1, the negative electrode of the light-emitting diode and ground, the other end of the capacitor C1 is respectively connected to the VDD pin of the MCU and one end of the resistor R1, the other end of the resistor R1 is respectively connected to the negative electrode of the diode D1 and the negative electrode of the diode D2, the positive electrode of the light-emitting diode is connected to the OUTPUT pin of the MCU, one end of the photosensor is grounded, the other end of the photosensor is respectively connected to the COM pin of the MCU and one end of the resistor R2, and the other end of the resistor R2 is connected to the REF pin of the MCU.

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