CN214335222U - Digital imaging equipment, optical axis-sharing distance measurement imaging device and optical axis-sharing distance measurement imaging system thereof - Google Patents

Abstract

The utility model relates to a digital imaging equipment, optical axis range finding imaging device altogether and optical axis range finding imaging system altogether thereof. The coaxial ranging imaging system comprises a laser transmitting unit, a laser receiving unit and a digital imaging unit, wherein the laser transmitting unit is used for transmitting a laser beam to a target, the laser receiving unit is used for receiving the laser beam reflected back, the digital imaging unit is used for receiving natural light and converting an optical signal into an electric signal, the laser transmitting unit forms a laser transmitting light path, the laser receiving unit forms a laser receiving light path, the digital imaging unit forms a natural light observation light path, and the laser transmitting light path and the natural light observation light path are arranged along the central axis of the laser receiving unit, so that the axis of the laser transmitting light path, the axis of the laser receiving light path and the axis of the natural light observation light path are coaxial and the axes of the laser transmitting light path, the laser receiving light path and the natural light observation light path are overlapped.

Description

Digital imaging equipment, optical axis-sharing distance measurement imaging device and optical axis-sharing distance measurement imaging system thereof

Technical Field

The utility model relates to a photoelectric imaging technology field especially relates to a common optical axis range finding imaging system, have this common optical axis range finding imaging system's common optical axis range finding imaging device and have this common optical axis range finding imaging device's digital imaging equipment.

Background

Common digital imaging devices include laser rangefinders, laser sights, and the like, which typically use lasers to range and aim at a target. The existing laser range finder or laser sight can be combined with the digital imaging device, and the target can be aimed through the display of the digital imaging device. The device behind present digital aiming device combines often is many optical path system, the transmission of existing laser rangefinder, the light path of receiving light path digital formation of image in addition, and these three light path mutually independent exist, and because the device is placed the problem and is made three light path accomplish the optical axis altogether very hardly in the strictest sense to the influence aims and range finding effect, the design of this kind of optical path system makes whole digital aiming device appear three optical lens in appearance moreover, the product is whole to be felt to be short of.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention aims to provide a common-axis ranging imaging system, a common-axis ranging imaging apparatus having the same, and a digital imaging device having the same, which can solve or at least alleviate the above problems.

The utility model provides a sharing optical axis range finding imaging system, including laser emission unit, laser receiving element and digital imaging unit, the laser emission unit is used for transmitting laser beam to a target, the laser receiving element is used for receiving the laser beam of reflection return, digital imaging unit is used for receiving the natural light and converts light signal into the signal of telecommunication, the laser emission unit forms the laser emission light path, the laser receiving element forms the laser receiving light path, digital imaging unit forms the natural light and surveys the light path, the laser emission light path with the natural light is surveyed the light path and is followed the central axis of laser receiving element arranges, makes the axis of laser emission light path the laser receiving light path with the axis three coaxial line of light path is surveyed to the natural light, and three's axis overlaps each other.

In some embodiments, the laser emission unit includes a laser emitter for emitting a laser beam, a laser emission mirror for collimating the emitted laser beam, a laser reflection mirror for reflecting the collimated laser beam, and a dichroic mirror for reflecting the laser light and allowing natural light to pass therethrough.

In some embodiments, the laser emission mirror is positioned in front of the laser emitter to form a laser emission group, the laser reflection mirror and the dichroic mirror are parallel to each other and form a laser guide group, and the laser guide group is arranged in front of the laser emission group.

In some embodiments, the laser receiving unit includes a laser receiving mirror for converging the laser beam folded back from the target, and a laser receiver for receiving the converged laser beam, and the central axis passes through a center of the laser receiving mirror.

In some embodiments, the dichroic mirror is disposed on the central axis, and the laser receiver is located behind the laser receiving mirror for receiving the converged laser beam

In some embodiments, a through hole is formed in the center of the laser receiving mirror, and at least a partial area of the laser receiving mirror is used for converging the laser beam returning from the target.

In some embodiments, the digital imaging unit includes the dichroic mirror, a digital imaging mirror for converging natural light, and a sensor for receiving the converged natural light.

In some embodiments, the dichroic mirror, digital imaging mirror, and sensor are arranged in sequence on the central axis.

The utility model also provides a common optical axis range finding imaging device, including the casing with accept in common optical axis range finding imaging system and control module group in the casing still include above-mentioned common optical axis range finding imaging system.

The utility model also provides an imaging device, including above-mentioned optical axis of sharing range finding imaging system.

According to the utility model discloses a sharing optical axis range finding imaging system simplifies the multiaxis system among the prior art as one for the light path that launches the light path, receives light path and digital formation of image realizes true coaxial, and the axis of three light path overlaps each other promptly, has improved the precision of aiming the range finding and has reduced the volume of device simultaneously greatly, makes the wholeness of product obtain the assurance.

Drawings

Fig. 1a shows a perspective view of a coaxial ranging imaging system according to an embodiment of the present invention, in which three optical paths are schematically shown.

FIG. 1b shows an equivalent optical path diagram of the co-optical axis ranging imaging system shown in FIG. 1 a.

FIG. 2 shows a perspective view of a co-axial range finding imaging device having the coaxial imaging system shown in FIG. 1 a.

Figure 3 shows an exploded view of the co-optical axis range finding imaging device shown in figure 2.

Fig. 4 shows an axial cross-sectional view of the coaxial ranging imaging device shown in fig. 2.

Fig. 5a shows a perspective view in one direction of the coaxial ranging imaging device shown in fig. 2, with the housing omitted.

Fig. 5b shows a perspective view of the coaxial ranging imaging device shown in fig. 5a in another direction.

Fig. 6 shows a perspective view of a focus adjustment member of the coaxial ranging imaging apparatus shown in fig. 5 a.

Fig. 7 is a schematic diagram of a digital imaging apparatus according to an embodiment of the present invention.

Reference numerals: 100-a common-optical-axis ranging imaging device; 1-a shell; 11-a first engagement; 12-a second engagement; 13-eyepiece module; 131-ocular lens; 132-a connecting shell; 14-a mounting seat; 140-a connecting trough; 151-first adjustment member; 152-a second adjustment member; 16-a focal length adjustment; 161-knob; 162-a first link; 163-a second link; 631-a first connection end; 632-a second connection end; 164-connecting plate; 2-a coaxial-axis ranging and ranging imaging system; 21-positioning the shell; 211-a cone; 212-a threaded portion; 213-a cylindrical portion; 214-a notch; 215-ball head; 216-opening; 217-ball cup seat; 218-ball head face; 22-a laser emitting unit; 221-a laser transmitter; 222-a laser emitting mirror; 223-laser mirror; 224-dichroic mirror; 23-a laser receiving unit; 231-laser receiving mirror; 232-a laser receiver; 234-a via; 24-a digital imaging unit; 241-digital imaging mirror; 242-a sensor; 243-a movable member; a-an equivalent laser receiving optical path; b-equivalent natural light observation optical path; a C-equivalent laser emission optical path; 25-a first positioning member; 26-a second positioning element; 27-a positioning table; 28-an elastic member; 3-a control module; 31-a battery; 32-a main board; 33-a display; 34-an interface board; 341-protective cover; 35-a key module; 351-key press; 352-keypad; 36-connecting wires; 4-target; 300-a digital imaging device; 302-shooting device.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, so that the technical solutions and the advantages thereof will be more clearly understood. It is to be understood that the drawings are provided for purposes of illustration and description only and are not intended as a definition of the limits of the invention, but the dimensions shown in the drawings are for convenience and are not to be taken as limiting the scale.

As shown in fig. 1a, the coaxial ranging imaging system 2 according to an embodiment of the present invention includes a laser emitting unit 22, a laser receiving unit 23, and a digital imaging unit 24. The laser emitting unit 22 is used for emitting a desired laser beam and transmitting the laser beam to the target 4. The laser receiving unit 23 is used for receiving the laser beam reflected from the target 4. The digital imaging unit 24 is used for imaging the natural light observation optical path.

The laser emitting unit 22 includes a laser emitter 221 for emitting a laser beam, a laser emitting mirror 222 for collimating the emitted laser beam, a laser reflecting mirror 223 for reflecting the collimated laser beam, and a dichroic mirror 224 for reflecting the laser light and allowing natural light to pass therethrough. In the present embodiment, the laser mirror 223 is capable of totally reflecting the laser beam. The laser beam emitted from the laser emitter 221 is collimated by the laser emitter 222, reaches the laser reflector 223, is reflected by the laser reflector 223, reaches the dichroic mirror 224, is reflected again, and reaches the target 4.

In the description herein regarding orientation, it is defined that the direction adjacent/toward the target 4 is the front, and the direction away from the target 4 is the rear.

Specifically, the laser emitting unit 22 is configured to emit a laser beam toward the direction of the target 4. The laser emission mirror 222 is located in front of the laser emitter 221 and is arranged substantially in a vertical direction such that the laser beam emitted by the laser emitter 221 is collimated into a parallel laser beam after passing through the laser emission mirror 222. The laser mirror 223 is disposed obliquely in front of the laser emitter 222, and in this embodiment, the laser mirror 223 is disposed at an angle of approximately 45 degrees with respect to the vertical direction, with its upper end facing forward (i.e., relatively closer to the target 4) and its lower end facing rearward (i.e., relatively farther from the target 4). This arrangement enables the laser mirror 223 to convert the horizontal laser beam from the laser emitting mirror 222 into a laser beam in the vertical direction to be emitted upward. The dichroic mirror 224 is located directly above the laser mirror 223. In the present embodiment, the dichroic mirror 224 is arranged in parallel with the laser mirror 2223, i.e., is disposed obliquely at 45 degrees to the vertical direction. This arrangement enables the dichroic mirror 224 to convert the vertical laser beam from the laser reflection mirror 223 into a horizontal laser beam and emit it toward the target 4 to reach the target 4.

The laser receiving unit 23 includes a laser receiving mirror 231 for converging the laser beam folded back from the target 4, and a laser receiver 232 for receiving the converged laser beam. In this embodiment, the laser receiver 232 converts the received optical signal into an electrical signal. The laser light emitted by the laser emitting unit 22 is reflected by the target 4, and is converged by the laser receiving mirror 231 to reach the laser receiver 232.

Specifically, the laser receiving mirror 231 is located in front of the dichroic mirror 224. The laser receiver 231 is disk-shaped and is disposed in a vertical direction. The laser receiving mirror is a 231 convex lens for receiving the laser light reflected from the target 4 and converging the laser light at the rear thereof (i.e., the side away from the target 4). The laser receiver 232 is located behind the laser receiving mirror 231, and is located on the central axis M of the laser receiving mirror 231 for receiving the converged laser beam. Preferably, to avoid positional interference, the laser receiver 232 is located at the rearmost end of the entire co-optical axis range-finding imaging system 2.

Since the laser receiving mirror 231 is located between the dichroic mirror 224 of the laser emitting unit 22 and the target 4, in order to avoid interference of the laser receiving mirror 231 with the emitted laser light reflected from the dichroic mirror 224, it is preferable that a through hole 234 is formed in the center of the laser receiving mirror 231 so that the emitted laser light can freely pass through the through hole 234 to reach the target 4.

In the present embodiment, the span of the laser receiving mirror 231 in the vertical direction is greater than the span of the dichroic mirror 224 and the laser reflecting mirror 223 in the direction, that is, the projection of the dichroic mirror 224 and the laser reflecting mirror 223 on the vertical plane is located within the projection of the laser receiving mirror 231 on the vertical plane.

The digital imaging unit 24 includes a dichroic mirror 224 that allows natural light to pass through and reflects laser light, a digital imaging mirror 241 for condensing the natural light, and a sensor 242 for receiving the condensed natural light. Preferably, the digital imaging mirror 241 is a convex lens group. The sensor 242 is an image sensor for converting a received optical signal into an electrical signal. The natural light passes through the dichroic mirror 224, reaches the digital imaging mirror 241, is condensed by the digital imaging mirror 241, and reaches the sensor 242.

Specifically, the dichroic mirror 224, the digital imaging mirror 241, and the sensor 242 are sequentially disposed behind the laser receiving mirror 231. In order to make the natural light observation optical path pass through the laser receiving mirror 231 smoothly. The dichroic mirror 224, the digital imaging mirror 241 and the sensor 242 of the digital imaging unit 24 are arranged opposite to the through hole 234 of the laser receiving mirror 231. That is, the dichroic mirror 224, the digital imaging mirror 241 and the sensor 242 of the digital imaging unit 24 are also located on the central axis M of the laser receiving mirror 231, so that the natural light can smoothly pass through the through hole 234, reach the dichroic mirror 224, pass through the dichroic mirror 224, reach the digital imaging mirror 241 located behind the dichroic mirror 224, and reach the sensor 242 located behind the digital imaging mirror 241 after being condensed by the digital imaging mirror 241. The arrangement of the dichroic mirror 224 can filter the laser light while allowing only natural light to pass therethrough, and therefore, the influence of the laser light on the natural light observation optical path can be avoided.

Preferably, in the present embodiment, the digital imaging unit 24 and the laser emission unit 22 share one dichroic mirror 224. And dichroic mirror 224, digital imaging mirror 241, and sensor 242 are located in front of laser receiver 232.

As described above, the laser emission light path formed by the laser emission unit 22 reaches the target 4 from the dichroic mirror 224 through the through hole 234 of the laser receiving mirror 231. The laser receiving optical path formed by the laser receiving unit 23 is converged and received by the laser receiving mirror 231 and converged to the laser receiver 232 at the rear thereof, and the laser receiver 232 is located on the central axis M of the laser receiving mirror 231. The natural-light observation optical path formed by the digital imaging unit 24 is emitted by the target 4, passes through the through hole 234 of the laser receiver 231, and reaches the digital imaging mirror 241 and the sensor 242, which are also located on the central axis M of the laser receiver 231. Therefore, the laser emission optical path, the laser reception optical path, and the natural light observation optical path of the present embodiment achieve complete coaxiality, that is, the axial centers of the three optical paths completely overlap.

In the present embodiment, the laser mirror 223 and the dichroic mirror 224 of the laser light emitting unit 22 are parallel to each other. The inclination angles of the laser mirror 223 and the dichroic mirror 224 with respect to the laser receiving mirror 231 of the laser receiving unit 23 can be set as required. In the present embodiment, the through hole 234 is provided in a circular shape. Both laser light and natural light emitted by the laser emitting unit 22 pass through the through hole 234, and the ring-shaped laser receiving mirror 231 receives the laser light reflected from the target 4. The above configuration makes the laser light receiving path physically coaxial with the natural light observation path and the laser light emitting path. Fig. 1b schematically shows an equivalent optical path schematic of the laser emission optical path, the laser reception optical path, and the natural light observation optical path. The equivalent laser receiving light path A, the equivalent natural light observation light path B (equivalent natural light receiving light path) and the equivalent laser emitting light path C are arranged from outside to inside in sequence. Alternatively, depending on the requirements of the structure, a certain region a1 or a plurality of regions a1, a2 of the ring-shaped laser receiving mirror 231 may be selected as the laser receiving region, whereby three optical paths can still be realized coaxially.

Specifically, the laser transmitter 221 emits a laser beam having a certain wavelength band (for example, a wavelength band of 905 nm), passes through the laser transmitter mirror 222, is collimated into a parallel laser beam, is totally reflected by the laser reflector 223, and is reflected by the dichroic mirror 224 and is emitted to the target object 4 through the through hole 234 in the center of the laser receiver mirror 231. The laser reaches the designated target 4 and then is reflected, part of the reflected laser returns to the coaxial-axis ranging imaging system 2 again, passes through the laser receiving mirror 231 to form converged laser, and then reaches the laser receiver 232 located behind the laser receiving mirror 231, and the laser receiver 232 converts the received optical signal into an electrical signal. Here, since the dichroic mirror 224 is provided to allow only natural light to pass therethrough, the laser light cannot enter the rear area of the dichroic mirror 224 through the dichroic mirror 224. The natural light about the target 4 passes through the dichroic mirror 224 through the through hole 234 and then is condensed by the digital imaging mirror 241, the condensed natural light reaches the sensor 242, and the sensor 242 converts the received optical signal into an electrical signal. The target 4 on which the natural light image is observed is the target (without deviation) to which the laser is actually directed, whereby the target can be aimed more accurately.

Fig. 2 shows a perspective combination view of the coaxial ranging imaging apparatus 100 with the coaxial ranging imaging system 2 according to an embodiment of the present invention. Referring to fig. 3 and 4, the coaxial ranging imaging device 100 includes a housing 1, the coaxial ranging imaging system 2 and a control module 3 accommodated in the housing 1. The coaxial ranging imaging system 2 is electrically connected with the control module 3. In the present embodiment, the common-axis ranging imaging apparatus 100 can be used alone.

The housing 1 is used for assembling and integrating other components of the coaxial ranging imaging device 100 into a whole. The housing 1 is provided as a hollow body with both axial ends open. Both axial ends of the housing 1 are provided as a first engaging portion 11 and a second engaging portion 12, respectively. The first joint 11 is used to connect and fix the coaxial ranging imaging system 2. In this embodiment, the second engaging portion 12 is used to connect and fix the eyepiece module 13. Alternatively, the second joint portion 12 may be used to connect the coaxial ranging imaging device 100 to the front of the eyepiece of an existing imaging apparatus. Preferably, the first engagement portion 11 and the second engagement portion 12 are both threaded. In addition, the outer bottom of the housing 1 is provided with a mounting seat 14 for fixing the coaxial ranging imaging device 100 to an imaging device. In the present embodiment, the mount 14 is provided with the coupling groove 140, and the coupling groove 140 is engaged with a corresponding portion of the imaging device to mount the coaxial ranging imaging apparatus 100 on the shooting apparatus.

A plurality of adjusting members for adjusting components inside the coaxial ranging imaging apparatus 100 are also arranged on the housing 1. In the present embodiment, the plurality of adjusting members include a first adjusting member 151, a second adjusting member 152, and a focus adjusting member 16. The first adjusting member 151 is used for distance correction, the second adjusting member 152 is used for windage yaw correction, and the focal length adjusting member 16 is used for adjusting the focal length of the coaxial ranging imaging system 2. Alternatively, the number and position of the adjusting members arranged on the housing 1 can be set according to actual needs. In this embodiment, the first adjusting member 151 is a distance adjusting knob, and the second adjusting member 152 is a wind direction adjusting knob. The first and second adjusting members 151 and 152 may be conventional adjusting members (e.g., knob adjusting members including adjusting screws and adjusting springs), and specific structures of the first and second adjusting members 151 and 152 will not be described in detail.

The coaxial ranging imaging system 2 is mounted in the first joint part 11 of the housing 1. In the present embodiment, the coaxial ranging imaging system 2 is mounted in the first joint 11 through a positioning housing 21. Preferably, the positioning housing 21 and the first engaging portion 11 are connected to each other by a screw connection. The positioning housing 21 includes a tapered portion 211 having a large end and a small end, a threaded portion 212 and a cylindrical portion 213 provided at both ends of the tapered portion 211 in the axial direction of the housing 1. In the present embodiment, the threaded portion 212 is provided at the large end of the tapered portion 211, and the cylindrical portion 213 is provided at the small end of the tapered portion 211. Preferably, the threaded portion 212 is provided with an external thread, and the first engagement portion 11 is provided with an internal thread engaged with the external thread. The axially outer end of the threaded portion 212 is provided with at least two recesses 214, by means of which recesses 214 a user can install the positioning housing 21 on the housing 1 with the aid of a tool.

In this embodiment, the positioning housing 21 is connected to the first adjusting member 151 and the second adjusting member 152 mounted on the housing 1, and the user can adjust the position of the positioning housing 21 relative to the housing 1 by the first adjusting member 151 and the second adjusting member 152. To facilitate adjustment of the position of the retaining shell 21 relative to the shell 1, a ball head 215 extends radially outwardly along the tapered portion 211, the ball head 215 being adjacent the threaded portion 212. Accordingly, the housing 1 is provided with a ball head seat 217 at a position corresponding to the ball head 215, and the threaded portion 212 is provided as a ball head face 218 on an inner side adjacent to the ball head seat 217, the ball head seat 217 and the ball head face 218 engaging the ball head 215. After the coaxial ranging imaging system 2 is installed in the housing 1, the positioning housing 21 is prevented from moving in the axial direction of the housing 1 by the threaded portion 212, and the ball head 215 can move in any direction around the center point of the ball head 215 in the ball head seat 217 and the ball head surface 218, so that the position of the coaxial ranging imaging system 2 relative to the housing 1 is adjusted by the first adjusting member 151 and the second adjusting member 152.

The coaxial ranging imaging system 2 is electrically connected with the control module 3. The control module 3 controls the emission of laser light and receives electrical signals from the sensor 242 and the laser receiver 232. The control module 3 includes a battery 31, a main board 32, and a display 33. In this embodiment, a battery 31 is mounted above the mounting base 14 for supplying power to other components. The main board 32 is electrically connected to the laser transmitter 221, the laser receiver 232, and the sensor 242, and the display 33 through the connection wires 36. Optionally, the main board 32 may be provided with one or more of the following: the device comprises an orientation sensor, an angle sensor, a temperature sensor, a humidity sensor, an atmospheric pressure sensor, a global positioning system, a wireless transmission module and the like. In an alternative scheme, the wireless transmission module can transmit the laser data and the sensing data of other sensors to the terminal device, and the terminal device can directly display the measurement result on a display screen of the terminal device after processing. In addition, the control module 3 further includes an interface board 34, and the external interface on the interface board 34 can be electrically connected to an external imaging device to transmit data.

In addition, the control module 3 further includes a key module 35 electrically connected to the main board 32. The key module 35 includes a key sheet 352 disposed on the casing 1 and keys 351 mounted on the key sheet 352. After aiming at the target, the key 351 is triggered to drive the main board 32 to generate a signal, the laser transmitter 221 receives the signal and then emits a laser beam, the laser beam passes through the optical element to form a ranging laser to be emitted to the target and reflected back, and the laser receiver 232 converts the received optical signal into an electrical signal which is transmitted to the main board 32. The motherboard 32 processes the electrical signals and transmits the processed data to the display 33 to directly display the measurement results. Optionally, the electrical signals from the orientation sensor, the angle sensor, the temperature sensor, the humidity sensor, the barometric pressure sensor and the wind speed and direction sensor are also transmitted to the motherboard 32 for processing, and the processed results can also be displayed on the display 33. Optionally, the laser ranging data of the coaxial ranging imaging apparatus 100 and the measurement data of the sensor 242 may also be transmitted to the imaging device at the rear end through an external interface or a wireless transmission module of the interface board 34 for processing, and the processed measurement result may be directly displayed on a display screen of the imaging device. That is, the coaxial ranging imaging apparatus 100 can process the data and display the measurement result by itself, or transmit the data to the imaging device at the back end for processing and display the measurement result by the imaging device. In this embodiment, a protection cover 341 is further disposed on the housing 1 for protecting the external interface, so as to prevent impurities from entering the coaxial ranging imaging device 100.

Returning to fig. 1a, 3 and 4, the laser receiving mirror 231 of the laser receiving unit 23 is mounted inside the positioning housing 21 adjacent to the threaded portion 212 of the positioning housing 21. In this embodiment, the laser receiver 232 is fixed within the small end of the tapered portion 211. Alternatively, the laser receiver 232 may be fixed directly within the cylindrical portion 213 of the positioning housing 21. The first positioning member 25 for fixing the digital imaging unit 24 is fixed to the laser receiving mirror 231 through the through hole 234. The first positioning member 25 is substantially a hollow cylindrical body. In the present embodiment, one axial end of the first positioning member 25 is engaged on the peripheral wall of the through hole 234. Preferably, the sensor 242 of the digital imaging unit 24 is mounted at the other axial end of the first positioning member 25 away from the laser receiving mirror 231. Other components of the digital imaging unit 24 are disposed between the sensor 242 and the laser receiving mirror 231. The digital imaging mirror 241 of the digital imaging unit 24 is disposed in the first positioning member 25 via a movable member 243. The digital imaging mirror 241 is disposed in the movable member 243, and the movable member 243 is movable relative to the first positioning member 25 along the axial direction of the first positioning member 25.

A second positioning member 26 for fixing the laser emitting unit 22 is fixed to the first positioning member 25. The second positioning member 26 is a hollow body. In this embodiment, the second positioning member 26 is fixed to a side wall of the first positioning member 25 and is communicated with the first positioning member 25. Preferably, the first positioning member 25 is parallel to the second positioning member 26. The laser mirror 223 of the laser emitting unit 22 is arranged adjacent to the junction of the second positioning member 26 and the first positioning member 25, and the dichroic mirror 224 is arranged above the laser mirror 223. The laser emission mirror 222, and the laser emitter 221 are arranged in this order in the axial direction of the second positioning member 26 in the second positioning member 26.

The above arrangement allows the positions of the laser light emitting unit 22, the laser light receiving unit 23, and the digital imaging unit 24 of the coaxial ranging imaging system 2 with respect to the housing 1 to be adjusted by the first adjusting member 151 and the second adjusting member 152 provided on the housing 1. Referring to fig. 3, 5a and 5b simultaneously, the first and second adjusting members 151 and 152 accomplish this by adjusting the position of the cylindrical portion 213 of the positioning housing 21 relative to the housing 1. The force of the respective screws of the first and second adjusting members 151 and 152 acts on said cylindrical portion 213 such that the free movement of said ball 215 about its centre point is arranged to be controllably movable. In order to more precisely control the positional adjustment of the coaxial ranging imaging system 2 with respect to the housing 1, an L-shaped positioning table 27 is provided below the cylindrical portion 213. An elastic member 28 is disposed between the cylindrical portion 213 and the positioning table 27. In the present embodiment, the first adjusting member 151 is mounted on the housing 1 above the L-shaped positioning table 27, and the second adjusting member 152 is mounted on the housing 1 toward the L-shaped positioning table 27. By the cooperation of the resilient member 28 and the adjustment member, a more precise position adjustment is achieved. Preferably, the elastic member 28 is provided as a leaf spring.

In addition, the focal length of the digital imaging unit 24 can be adjusted by the focal length adjusting member 16 provided on the housing 1. As shown in fig. 5b and 6, the positioning housing 21 is provided with an opening 216 arranged on said conical portion 211. The focus adjustment member 16 can pass through the opening 216 to adjust the focus of the digital imaging unit 24. The opening 216 can be set according to actual needs. The focus adjustment member 16 includes a knob 161, at least two first links 162, and a second link 163. Each first link 162 extends parallel to the axial direction of the knob 161. The second link 163 is perpendicular to the first link 162. The second link 163 has a first connection end 631 and a second connection end 632 at both ends thereof, respectively. The first and second connection ends 631 and 632 each extend perpendicular to the second link 163. The first connection end 631 is disposed between the two first links 162. The second connection end 632 is inserted into the movable member 243 in the first positioning member 25. When the knob 161 is rotated clockwise or counterclockwise, the first link 162 swings along with it, so that the first connection end 631 between the two first links 162 moves along the extending direction of the first link 162, thereby moving the movable member 243, and adjusting the focal length of the digital imaging mirror 241 disposed in the movable member 243. In addition, the data of the common-optical-axis ranging imaging device 100 is directly used for adjusting the focal length of the digital imaging mirror 241, the ranging value of the laser ranging is fully utilized as the parameter for adjusting the focal length of the digital imaging mirror 241, the ranging data is fully utilized, the speed is high, the accuracy is higher, particularly when the multiplying power needs to be adjusted, the focal length can be rapidly and correspondingly adjusted, and the operation efficiency of the device is greatly improved. In the present embodiment, the first link 162 is attached to the knob 161 by a connection plate 164 to increase the swing amplitude of the first link 162.

Returning to fig. 1a and 2, the coaxial ranging imaging device 100 of the present invention further includes an eyepiece module 13 mounted on the housing 1 and facing the display 33, wherein the eyepiece module 13 includes an eyepiece 131 and a connecting shell 132 for mounting the eyepiece 131. In this embodiment, the eyepiece module 13 is far away from the coaxial-axis ranging imaging system 2.

Fig. 7 shows a digital imaging device 300 having the coaxial ranging imaging apparatus 100 of the present invention, wherein the digital imaging device 300 has a function of aiming or ranging. The digital imaging device 300 may be a laser sight, a laser range finder, a night vision device, or the like. Furthermore, the utility model discloses a digital aiming equipment still includes shooting device 302, and common optical axis range finding imaging device 100 is installed on shooting device 302.

The above description is only a preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above listed embodiments, any person skilled in the art can obviously obtain simple changes or equivalent substitutions of the technical solutions within the technical scope of the present invention.

Claims (10)

1. The utility model provides a sharing optical axis range finding imaging system, includes laser emission unit (22), laser receiving element (23) and digital imaging unit (24), laser emission unit (22) are used for launching laser beam to a target (4), laser receiving element (23) are used for receiving the laser beam of reflection back, digital imaging unit (24) are used for receiving the natural light and convert light signal into the signal of telecommunication, laser emission unit (22) form the laser emission light path, laser receiving element (23) form the laser receiving light path, digital imaging unit (24) form the natural light and observe the light path, its characterized in that: the laser emission light path and the natural light observation light path are arranged along a central axis (M) of the laser receiving unit (23), so that the axis of the laser emission light path, the axis of the laser receiving light path and the axis of the natural light observation light path are coaxial, and the axes of the laser emission light path, the laser receiving light path and the axis of the natural light observation light path are mutually overlapped.

2. The coaxial ranging imaging system according to claim 1, wherein the laser emitting unit (22) includes a laser emitter (221) for emitting a laser beam, a laser emitting mirror (222) for collimating the emitted laser beam, a laser reflecting mirror (223) for reflecting the collimated laser beam, and a dichroic mirror (224) for reflecting the laser light and allowing natural light to pass.

3. The system according to claim 2, wherein the laser emitting mirror (222) is located in front of the laser emitter (221) to form a laser emitting group, the laser reflecting mirror (223) and the dichroic mirror (224) are parallel to each other and form a laser guiding group, and the laser guiding group is arranged in front of the laser emitting group.

4. The coaxial ranging imaging system according to claim 2, wherein the laser receiving unit (23) comprises a laser receiving mirror (231) for converging the laser beam folded back from the target (4), and a laser receiver (232) for receiving the converged laser beam, the central axis (M) passing through a center of the laser receiving mirror (231).

5. The co-optical axis ranging imaging system according to claim 4, characterized in that the dichroic mirror (224) is arranged on the central axis (M) and the laser receiver (232) is located behind the laser receiving mirror (231) for receiving the converged laser beam.

6. The coaxial ranging imaging system according to claim 4, wherein a through hole (234) is formed in the center of the laser receiving mirror (231), and at least a partial area of the laser receiving mirror (231) is used for converging the laser beam returning from the target (4).

7. The co-optical axis ranging imaging system according to claim 4, wherein the digital imaging unit (24) comprises the dichroic mirror (224), a digital imaging mirror (241) for converging natural light, and a sensor (242) for receiving the converged natural light.

8. The co-optical axis ranging imaging system according to claim 7, characterized in that the dichroic mirror (224), the digital imaging mirror (241) and the sensor (242) are arranged in sequence on the central axis (M).

9. A co-optical axis distance measurement imaging device, comprising a housing (1), a co-optical axis distance measurement imaging system (2) and a control module (3) accommodated in the housing (1), wherein the co-optical axis distance measurement imaging system (2) is the co-optical axis distance measurement imaging system according to any one of claims 1 to 8.

10. A digital imaging apparatus comprising the co-optical axis range finding imaging system of any one of claims 1 to 8.

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