CN217063820U - Multifunctional portable reconnaissance camera based on telephoto lens - Google Patents

Abstract

A multifunctional portable reconnaissance camera based on a telephoto lens comprises a shell, an eyepiece, a visible light objective group, a control main board, a power supply unit, a low-light-level movement, a filter wheel and a laser illuminator; the visible objective lens group is a long-focus lens designed by adopting a return light path, and the filter wheel is arranged in the middle position of the rear intercept of the glimmer movement and the long-focus lens; the laser illuminator is adapted to the spectral response section of the microlight movement. The camera of the invention has small volume, long imaging time, clearer imaging and longer observation distance.

Description

Multifunctional portable reconnaissance camera based on telephoto lens

Technical Field

The invention relates to a portable remote day and night imaging multifunctional camera which can be directly applied to public security criminal investigation evidence collection, armed police anti-terrorism outburst treatment, wild animal protection and day and night investigation monitoring, patrol and duty of edge defense.

Background

At present, in the domestic technical level, products with similar technologies exist in the field, most of the products adopt a visible light camera and an infrared imager, the day and night observation is realized on a display in a video image switching mode, and part of the products adopt a visible light image and infrared image fusion technology, so that the imaging enhancement effect is very little. And the two optical cameras are both provided with short-focus lenses, the observation and identification distance is basically within 1km, and the figure image formed by night infrared cannot be used for evidence collection, and even cannot be normally used in rainy and foggy days or under strong light environments.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a telephoto lens camera which can image in a complex environment, and is long in distance measurement, small in size, light in weight and convenient to carry.

Aiming at the technical problem, the technical scheme provided by the invention is a multifunctional portable reconnaissance camera based on a telephoto lens, which comprises a shell, an eyepiece, a visible light objective group, a control main board and a power supply unit, and is characterized by also comprising a low-light-level movement, a filter wheel, a laser illuminator and a laser range finder; the visible objective lens group is a long-focus lens designed by adopting a return light path, and the filter wheel is arranged in the middle position of the rear intercept of the glimmer movement and the long-focus lens; the laser illuminator is adapted to the spectral response section of the microlight movement.

Preferably, the micro-optical movement is an sCMOS sensor, and the spectral response band is 380-980 nm.

Preferably, the telephoto lens has a focal length of 309 mm.

Preferably, a display screen is mounted on the housing.

Preferably, a human body induction module is installed on one side of the eyepiece, and the control mainboard controls the opening and closing of the display screen according to an induction signal controlled by the human body induction module.

Preferably, a GPS receiving antenna is installed on the housing, and a positioning and orientation processing module for receiving and processing data information sent by the GPS and the electronic compass is arranged on the control main board.

Preferably, the power supply unit adopts a main battery compartment and an auxiliary battery compartment.

Preferably, keys for function and mode selection are respectively arranged on both sides of the shell.

Preferably, a plurality of aiming bosses are arranged at the top of the shell.

Preferably, the filter wheel is fitted with a common light window pane, a band pass filter and a high pass filter.

Preferably, a laser rangefinder is also provided.

The long-focus lens, the glimmer movement, the laser illuminator and the laser range finder are utilized to realize farther reconnaissance range and more information collection functions, and meanwhile, the light filtering function is added, so that the reconnaissance effect at night and in a mist environment is better.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention adopts the foldback optical long-focus lens to replace a short-focus fixed-focus lens in the prior art, reduces the volume of the camera and improves the observation distance of the camera.

(2) Compared with a visible light camera adopted in the prior art, the micro-light camera core has a wider spectral response waveband and covers a part of near-infrared waveband, so that the visible light imaging time period is longer, and especially the imaging at dawn and dusk later time periods is clearer than that of the visible light camera.

(3) Compared with the prior art, the laser illuminator is added, the night imaging capability is stronger, the target texture characteristics can be obtained, and the laser illuminator has higher evidence obtaining value compared with the night infrared image in the prior art.

(4) Compared with the prior art, the multi-filtering mode designed by the invention can be used for coping with a strong backlight environment at night, has certain smoke and fog penetration capacity, and improves the visual observation effect under backlight at night and the observation distance under special meteorological or environmental conditions.

Drawings

Fig. 1 is a schematic perspective view of a camera according to the present invention.

Fig. 2 is a perspective view of a camera from another view angle.

Fig. 3 is a perspective view of the camera with eyepiece view.

Fig. 4 is a schematic view of a front view structure of the eyepiece viewing angle camera.

Fig. 5 is a schematic view of the internal structure of the camera.

Fig. 6 is a schematic view of the internal structure of the camera from another view angle.

Detailed Description

With respect to the above technical solutions, preferred embodiments are described in detail with reference to the drawings.

As shown in fig. 1, 2, 3, 4, 5 and 6, the camera of the present invention comprises an imaging part mainly comprising a visible light objective lens group 4, a receiving window 5, a laser illuminator 6 and a laser ranging module 7; the lens end of the visible light objective lens group 4, the receiving window 5, the laser illuminator 7, the laser ranging module 7 and the GPS receiving antenna 26 are respectively and fixedly installed on the front panel 22. The inner frame substrate 36 is provided with a main body of the micro-optical movement 30, a filter wheel 27, a shading cylinder 28, a filter motor 31, a focusing motor 32, a reflector 34, an embedded control mainboard 33, an SD card storage module 29, a tripod interface 19 and a visible objective lens group 4.

The shell 21 is provided with an OLED screen seat 37, a human body induction module 18, a battery compartment 10, a left key 9, a right key 14, a left five-way key 1, a right five-way key 11, an SD card cover 12, an external power interface 13 and an OLED display screen 20. The battery compartment 10 comprises a handle 15, a main battery compartment 24 and an auxiliary battery compartment 23, wherein the main battery compartment and the auxiliary battery compartment are opened through the handle 15, the batteries are installed or taken out, and three batteries 18650 are respectively installed in the main battery compartment and the auxiliary battery compartment.

The both sides of shell 21 surface design respectively have hand foraminiferous 3, hand rest 2, design on the shell surface has to aim the projection 8, aims projection 8 and includes 2 near objective end, 1 of eyepiece end. The shell 21 is connected with the front panel 22 through circumferential buckles, and the matching gaps are sealed through silica gel; the inner frame base plate 36 is fixedly connected with the front panel 22 through screws.

The visible objective lens group 4 is a telephoto lens, and adopts a folding light path design, and the optical focal length is 309 mm. Due to the adoption of the design of the turn-back type light path, the external dimension of the protection shell is shortened, and the requirement on the internal space of the protection shell of the handheld equipment is met. The optical system mainly comprises three lenses, the focusing of the optical system is realized by controlling the movement to move along the longitudinal direction of the optical axis through a key and adjusting the back intercept of the lens, and the stability and consistency of the optical axis of the lens are ensured.

The laser illuminator adopts a 850nm laser illuminator, the spectral response section of the micro-optical movement sCMOS sensor is adapted, and the light supplementing distance can reach 1 km. The laser illuminator communicates with the control mainboard through a serial port, and the illumination intensity and the light condensation function of the laser illuminator are controlled through keys.

The laser range finder adopts 1535nm eye-safe laser wave band, and the range finding range is 6km, which is used for adapting the observation range of the telephoto lens. The laser range finder and the control mainboard are communicated through TTL, and the opening and closing of the laser range finder are triggered through the keys.

The micro-light machine core adopts an sCMOS sensor, a spectral response wave band is 380-980 nm, a certain near infrared wave band is covered, and the effective light supplementing wave band of the laser illuminator is matched. The video of the low-light-level movement is output by SDI, the video stream is input to the control main board, the embedded control main board is compressed by H.265 coding, OSD information is superposed, the information superposition comprises various information such as GPS positioning information, electronic compass orientation information, time information, battery electric quantity information, ranging value information, laser energy percentage information, photographing/video recording duration information, an operation menu and the like, and then the information is output to an OLED display screen for display.

The filter wheel 27 is located at the middle position of the rear intercept of the micro-optic movement 30 and the telephoto lens shading cylinder 28, three types of optical filters are mounted on the filter wheel, and a common optical window glass, a band-pass optical filter (808nm) and a high-pass optical filter (more than 675nm) correspond to three different filter modes (common, semi-pass and high-pass), different optical filters are switched by manually operating keys, and imaging under different illumination conditions is met.

The positioning and orientation processing module 35 is located on the embedded control main board 33, and mainly receives and processes data information sent by a GPS receiving antenna and an electronic compass, and adopts a universal third-generation GPS/BD board card module for positioning and an electronic compass module for orientation. The camera protective shell is made of nonmetal, so that the positioning signal can be received.

The OLED display 20 is an OLED high-definition display, and the size of the OLED display is 0.71 ″ in terms of the mesh distance, and the resolution is 1920 × 1080, and the OLED display is connected to the embedded control motherboard 33 through an MIPI interface.

The eyepiece adopts standard 9 times eyepiece, and the adaptation OLED display screen size accords with the vision custom that the people's eye was surveyd, and the eyepiece can adjust the picture definition according to different observation personnel's stadia. The eyepiece 16 is installed on the OLED screen holder 37, and the annular groove has been seted up on the OLED screen holder 37 periphery of eyepiece 16 periphery, and the eye guard 17 demountable installation can take off at any time or buckle installation in the annular groove. The eye shield is made of rubber.

Human response module 18 adopts infrared temperature sensing module, is located eyepiece 16 and OLED display screen 20 under, and when people's eye was close the eyepiece and observes, the distance reached action range, and human response module can light the display screen automatically, keeps away from the eyepiece when the human body, when the response can not reach the human body, then closes the display screen. The module mainly controls the on-off of the display screen, so that energy and electricity are saved.

The embedded control main board 33 is a micro operating system developed based on the haisi Hi3519A core board, and mainly processes video signals, OSD information superposition display, system menu display and operation, storage instructions, and execution of key instructions.

The SD card memory module 29 is a general SD card memory module, and supports a maximum memory of 128G. And finishing the storage of the video image information through a key instruction. The SD card mounting position is designed with an anti-drop rubber cover, the rubber cover is firstly pulled out when the SD card is mounted or taken out, and the anti-drop rubber cover is required to be covered after the SD card is mounted or taken out.

The power supply unit is a battery compartment, including a main battery compartment 24 and an auxiliary battery compartment 23. The design of the main battery compartment and the auxiliary battery compartment is adopted, and the field portable reconnaissance time is prolonged. The main battery compartment and the auxiliary battery compartment adopt 3-section 18650 standard 3.7V rechargeable batteries, and the camera can work for 6 hours when the two compartments are in a full-power state. The battery cabin is positioned right above the ocular, the left side of the battery cabin is an auxiliary battery cabin, the right side of the battery cabin is a main battery cabin, and when the electric quantity of the main battery cabin is lower than 5%, the battery cabin is automatically switched to the auxiliary battery cabin to supply power. The battery compartment is installed by utilizing the handle 15 hook, and after the battery is installed in the compartment, the handle 15 on the compartment body of the battery compartment is rotated clockwise by 60 degrees to be locked and fixed. When the battery is taken out, the handle is rotated anticlockwise, and then the battery can be taken out.

The keys comprise a left five-way key, a right five-way key, a left key and a right key which are respectively positioned at two sides of a camera shell held by two hands, the thumb is convenient for operating parts, the left side is a start key and a function menu selection key and a direction key, the left side specifically comprises day and night mode selection, gain addition and subtraction, filtering mode selection, laser ranging/lighting function on/off, display time setting and the like, and the right side is a function trigger and a direction key, and specifically comprises video recording/shooting trigger, focusing trigger, electronic zooming and ranging trigger functions. As shown in fig. 1, 3 and 4, from the visual angle of the eyepiece 16 direction, the operator can start the computer by pressing the center rod key in the left five-way key 1 for 3 seconds, after starting the computer, the OLED display 20 displays a start logo, and then turns to a video picture 1s later, when the eyes of the operator approach the eyepiece cover 17, the human body induction module 18 is triggered, so that the picture of the OLED display 20 can be clearly seen to be lightened, the upper left corner of the picture displays an operation menu, and operation selection can be performed through the left five-way key 1; focusing adjustment is carried out on the visible light lens through up-and-down shifting of the right five-way key 11, and amplification and reduction adjustment is carried out on the video image through left-and-right shifting of the right five-way key 11; the left key 9 has three functions, wherein the clicking trigger is shooting trigger, the long press for more than 2s is video recording trigger, and the stopping of the video recording is clicking trigger; the right button 14 has two functions, namely, a single click realizes laser ranging triggering, a ranging value is displayed at the upper right corner of the OLED display screen 20 and automatically disappears after 10 seconds, and a double click realizes laser illumination turning on or turning off.

The camera protective shell is made of non-metallic material PA12, the structural strength of the camera protective shell is comparable to that of aluminum alloy, and the structural density of the camera protective shell is only 1.7g/cm ³ The utility model discloses a camera tripod, including protective housing, camera tripod, protective housing, the last design of protective housing has the installation via hole in anticreep hand area, and the top has the aiming projection that is used for the coarse sight, and both sides have the handheld hand protector of holding to hold holds in the palm, and the design has general M6 screw in the bottom for the camera installs on the tripod.

In order to ensure the convenience and easy assembly of the structure installation, the inner frame substrate 36 is fixedly connected with the front panel 22 through screws, and on the basis, the visible objective lens group 4, the filter wheel 27, the shading cylinder 28, the micro-optical movement 30, the embedded mainboard 33 and the SD card storage module 29 are installed on the inner frame substrate 36; the laser ranging module 7, the laser illuminator 6, the GPS receiving antenna 26 and the lens end of the visible objective lens group 4 are arranged on the front panel 22, the mounting screws of the reflector 34 and the laser ranging module 7 and the mounting screws of the laser illuminator 6 are adjusted through a large-aperture collimator, the optical axes of the visible objective lens group 4, the laser range finder 7 and the laser illuminator 6 are adjusted to be consistent in parallel, and the optical path of the 309mm lens ensures that the imaging surface of the visible objective lens group 4 and the center of the target surface of the low-light-level movement 30 are kept coincident through adjusting the reflector 34; then the shell 21 with the keys and the display screen is sleeved on the inner frame base plate, a certain length is reserved for the connection of the inner keys, and after the connection is connected with the buckle of the front panel 22, the tripod interface 19, the ocular 16 and the eye shield 17 are installed. In addition, the buckle matching surface is sealed through silica gel.

According to the camera, the sCMOS micro-light machine core is adopted, the 850nm laser is designed in the sCMOS micro-light machine core, light is supplemented for the micro-light machine core to illuminate under the environment with extremely low illumination (less than 0.0001lux), target imaging under the starlight level environment is solved, the formed image can be completely used for single-soldier reconnaissance and criminal reconnaissance evidence obtaining, and the problem that the traditional reconnaissance camera can only obtain evidence in the daytime is solved.

The camera lens adopts the design of a three-hundred-millimeter long-focus lens of a turn-back type light path, compared with a product with the prior function close to, the observation distance is more than 5 times longer, and the problem that the observation distance of the prior reconnaissance monitoring equipment is limited is solved. Meanwhile, the whole overall size and the size of the telephoto lens are reduced to the maximum extent by the fold-back type light path, so that the telephoto lens can be accommodated in a smaller space, and the size problem of portable telephoto camera equipment is solved.

Because the spectral response wave band of the sCMOS chip is wide, a band-pass and high-pass filter is designed in the camera, the irradiation of a strong light source at night can be effectively inhibited, clear imaging is realized under the condition of strong backlight at a near-infrared wave band, and the special imaging problem of the strong backlight environment at night is solved.

In addition, the camera is also provided with a laser ranging module, so that more investigation monitoring information can be recorded and provided for a user at the same time, and the problem of obtaining the target distance is solved.

Claims (11)

1. A multifunctional portable reconnaissance camera based on a telephoto lens comprises a shell, an ocular, a visible light objective group, a control main board and a power supply unit, and is characterized by also being provided with a low-light-level movement, a light filtering wheel and a laser illuminator; the visible objective lens group is a telephoto lens designed by adopting a return light path, and the filter wheel is arranged in the middle position of the rear intercept of the glimmer movement and the telephoto lens; the laser illuminator is adapted to the spectral response section of the micro-optical movement.

2. The camera as claimed in claim 1, wherein the micro-optic engine is an sCMOS sensor with a spectral response band of 380-980 nm.

3. The camera of claim 1, wherein the tele lens has a focal length of 309 mm.

4. The camera of claim 1, wherein a display screen is mounted on the housing.

5. The camera according to claim 4, wherein a human body induction module is installed at one side of the eyepiece, and the control main board controls the display screen to be turned on or off according to an induction signal controlled by the human body induction module.

6. The camera according to claim 1, wherein a GPS receiving antenna is mounted on the housing, and a positioning and orientation processing module for receiving and processing data information sent by the GPS and the electronic compass is arranged on the control main board.

7. The camera of claim 1, wherein the power unit employs a primary and secondary battery compartment.

8. The camera of claim 1, wherein keys for function and mode selection are provided at both sides of the housing, respectively.

9. The camera of claim 1, wherein a plurality of aiming posts are disposed on a top portion of the housing.

10. The camera of claim 1, wherein the filter wheel is fitted with a plain light window glass, a band pass filter and a high pass filter.

11. A camera according to claim 1, further provided with a laser range finder.

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