camera

Abstract

The utility model provides a kind of camera, the camera includes: shell, camera, transparent display screen, control circuit board and light measurement module. Among them, light measurement module includes signal acquisition unit and the signal processing unit of signal acquisition unit electric connection;Signal acquisition unit is used to collect the light signal in the external shooting environment and exports the photoelectric signal corresponding with this light signal to signal processing unit;Signal processing unit is used to convert photoelectric signal into digital electric signal and transmission to control circuit board, to make control circuit board generate light measurement data according to digital electric signal, and light measurement data is transmitted to transparent display screen and is displayed. The present application scheme is by synchronously displaying the light measurement data and viewfinder picture in transparent display screen, let the observer can acquire light measurement data in real time while observing scene, and accurately set photographing parameter according to the light measurement data, to effectively avoid the overexposure or insufficient problem caused by parameter setting error.

Description

Technical Field

[0001] This utility model relates to the field of imaging equipment technology, and in particular to a camera. Background Technology

[0002] Currently, cameras in related technologies generally adopt a setup that separates the viewfinder and display functions. Specifically, the camera's independent main screen displays the image captured by the lens in real time, while a dedicated small screen or independent device (such as a light meter) displays metering data (such as exposure value and ISO). Although this design met early basic shooting needs and was widely used, its limitations have gradually become apparent as photographers' demands for shooting efficiency, equipment portability, and adaptability to complex scenes have increased. Among these technologies, cameras cannot simultaneously display metering data and viewfinder images. This forces photographers to frequently switch between "viewing the viewfinder" and "checking the metering data." In scenarios where timing is critical, such as fast-paced shooting, this can easily lead to missing the best shooting moment. Furthermore, due to the lack of real-time metering data, photographers can only rely on their personal experience to judge lighting conditions, which can easily cause exposure deviations in photos and affect image quality. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem that traditional cameras cannot display metering data and viewfinder images simultaneously, resulting in time-consuming operation and poor image quality.

[0004] To solve the above-mentioned technical problems, this utility model provides a camera, the camera comprising: The outer casing has a through mounting area; A transparent display screen is disposed in the mounting area of ​​the housing, and the transparent display screen is used to convert the shooting target into an optical viewfinder image for the photographer to observe; A camera, used to capture images of the target; A control circuit board is disposed inside the housing and electrically connected to the transparent display screen; The light metering module includes a signal acquisition unit and a signal processing unit electrically connected to the signal acquisition unit. The signal acquisition unit is used to acquire light signals from the external shooting environment and output photoelectric signals corresponding to the light signals to the signal processing unit. The signal processing unit is used to convert the photoelectric signals transmitted by the signal acquisition unit into digital electrical signals and transmit them to the control circuit board, so that the control circuit board generates light metering data according to the digital electrical signals and transmits the light metering data to the transparent display screen for display.

[0005] In one embodiment of this application, the signal acquisition unit is disposed inside the housing and electrically connected to the control circuit board through the signal processing unit, and the signal acquisition unit and the camera are located on the same side of the housing.

[0006] In one embodiment of this application, the control circuit board includes a data processing unit and a transmission unit electrically connected to the data processing unit. The data processing unit is electrically connected to the signal processing unit and is used to generate the photometric data according to the digital electrical signal transmitted by the signal processing unit, and transmit the photometric data to the transparent display screen for display through the transmission unit.

[0007] In one embodiment of this application, the transparent display screen includes a sensing unit and a processing unit electrically connected to the sensing unit; the sensing unit is used to capture physical signals of the photographer's touch action and transmit the physical signals to the processing unit; the processing unit is used to generate coordinate data of a specific area in the optical viewfinder based on the physical signals transmitted by the sensing unit. The processing unit is electrically connected to the photometry module and is used to transmit the coordinate data to the photometry module so that the photometry module can detect the light signal of the corresponding area based on the coordinate data.

[0008] In one embodiment of this application, the camera further includes a ranging module disposed on the housing, which is used to measure the distance signal between the photographer and the camera; The ranging module is electrically connected to the terminal device and is used to transmit the distance signal to the terminal device so that the terminal device can adjust the shooting parameters or image output range of the camera according to the distance signal.

[0009] In one embodiment of this application, the ranging module includes: substrate; A transmitting unit, disposed on the substrate, is used to transmit light signals to the photographer; A receiving unit, disposed on the substrate, is used to receive the light signal reflected back by the photographer; A control unit, disposed on the substrate, is used to control the transmitting unit to transmit light signals to the photographer, and to control the receiving unit to receive the light signals reflected back by the photographer, as well as to calculate the time difference between the light signals transmitted by the transmitting unit and the light signals received by the receiving unit, and to obtain the distance between the photographer and the camera based on the time difference.

[0010] In one embodiment of this application, the camera further includes a power supply module, which is electrically connected to the control circuit board and is used to supply power to the control circuit board.

[0011] In one embodiment of this application, the camera further includes a decorative piece disposed on the housing, the decorative piece being arranged on one side of the transparent display screen; and / or the ratio of the projected area of ​​the mounting area to that of the housing is 1:5 to 9:10.

[0012] In one embodiment of this application, the camera includes a wireless transmission module electrically connected to the control circuit board. The wireless transmission module is electrically connected to a terminal device and is used to transmit the image data captured by the camera and / or the light metering data to the terminal device.

[0013] In one embodiment of this application, the camera includes an image acquisition unit electrically connected to the signal processing unit of the metering module. The image acquisition unit is used to acquire the light signal of the target and output the photoelectric signal as the signal acquisition unit of the metering module in metering mode; or, in shooting mode, to generate a shooting image signal.

[0014] In one embodiment of this application, a shooting system is also provided, including a gimbal and a camera. The gimbal is electrically connected to the terminal device and is used to adjust the shooting angle of the camera according to control commands transmitted by the terminal device.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: In the camera of this application, the light signal in the environment is collected by the metering module and transmitted to the control circuit board, so that the control circuit board generates metering data according to the light signal and transmits it to the transparent display screen, thereby synchronously displaying the metering data and the viewfinder image on the transparent display screen. In this way, the photographer can obtain metering data in real time while observing the scene, and accurately set the shooting parameters according to the metering data, thereby effectively avoiding overexposure or underexposure caused by parameter setting errors, and ensuring stable and controllable image quality. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the camera of this utility model.

[0017] Figure 2 This is a schematic diagram of another embodiment of the camera of this utility model from another direction.

[0018] Figure 3 This is a schematic diagram of the structure of an embodiment of the photometric module of this utility model.

[0019] Figure 4 This is a structural schematic diagram of an embodiment of the ranging module of this utility model.

[0020] The reference numerals in the attached drawings are explained as follows: 100, Camera; 10, Housing; 11, Front shell; 12, Bottom shell; 13, Mounting area; 14, Decorative piece; 16, Data interface; 161, Interface slot; 20, Transparent display screen; 30, Control circuit board; 40, Light metering module; 41, Signal acquisition unit; 42, Signal processing unit; 43, Signal cable; 50, Ranging module; 51, Transmitting unit; 52, Receiving unit; 53, Cable connector; 54, Cable; 55, Substrate; 60, Camera; 70, Power supply module. Detailed Implementation

[0021] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0022] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] See Figures 1 to 4 One embodiment of this application provides a camera, including a housing 10, a transparent display screen 20, a control circuit board 30, and a light metering module 40.

[0025] The outer casing 10 is formed by fastening together a front casing 11 and a bottom casing 12 to create an internally enclosed through-mount area 13 for mounting the transparent display screen 20. The outer casing 10 also includes an area for accommodating the control circuit board 30, the power supply module 70, and the wireless transmission module.

[0026] In one embodiment of this application, the fastening method of the front shell 11 and the bottom shell 12 can be to first use buckles for quick pre-positioning and initial fixation, and then use self-tapping screws to lock and reinforce at key positions, thereby ensuring the reliability of structural connection and assembly accuracy while taking into account the efficiency and convenience of production and assembly.

[0027] A camera hole is centrally located at the front of the front panel 11 for mounting the camera 60. A ranging hole is located to one side of the camera hole for mounting the ranging module 50. Both the camera hole and the ranging module hole can have transparent windows with rounded edges to avoid obstructing functional components. The camera 60 and the ranging module 50 have opposite acquisition directions; the camera 60 is used to capture the image, and the ranging module 50 is used to measure the distance between the photographer and the camera.

[0028] A decorative piece 15 is installed at the front end of the faceplate 11. The decorative piece 15 can be made of wear-resistant acrylic material and is attached to the front surface of the faceplate 11. The edge of the decorative piece 15 extends beyond the edge of the faceplate 11 by a specified distance, forming a slight protrusion to improve the anti-slip properties when gripping.

[0029] The inner side of the bottom shell 12 has a raised power supply module mounting slot, which is sized to fit the power supply module 70. The slot wall is equipped with anti-slip rubber pads to prevent the power supply module 70 from shifting when the device shakes. A data interface slot 161 is located in the middle of the side wall of the bottom shell 12 for mounting a sized data interface 16. A silicone rubber waterproof ring is provided between the data interface slot 161 and the data interface 16 for waterproofing and dustproofing.

[0030] The transparent display screen 20 is embedded in the mounting area 13 of the housing 10 and is electrically connected to the control circuit board 30 via conductive adhesive strips. It can be sealed and fixed with adhesive on all sides, allowing the photographer to obtain the corresponding metering data of the target while observing it through the transparent display screen 20. The control circuit board 30 is fixed inside the housing 10 and electrically connected to the transparent display screen 20.

[0031] In some embodiments, the control circuit board 30 is fixed inside the housing 10 by means of screws to a fixing post on the inner wall of the housing 10 to achieve a stable and reliable mechanical connection and electrical grounding. Alternatively, it is fixed by means of a combination of slot limiting and screws, and by means of an adhesive medium (such as thermally conductive adhesive) for auxiliary fixing, thereby ensuring the positional stability and vibration resistance of the control circuit board in portable use scenarios.

[0032] The control circuit board 30 includes a data processing unit and a transmission unit, which are electrically connected to the data processing unit. The data processing unit is electrically connected to the signal processing unit in the photometry module 40, and is used to generate photometry data based on the digital electrical signal transmitted by the signal processing unit, and transmit the photometry data to the transparent display screen 20 for display via the transmission unit.

[0033] The photometry module 40 includes a signal acquisition unit 41 and a signal processing unit 42, which is electrically connected to the signal acquisition unit 41. The signal acquisition unit 41 acquires ambient light signals and outputs a photoelectric signal corresponding to these signals to the signal processing unit 42. The ambient light signals include light signals reflected from the target object. The signal processing unit 42 converts the photoelectric signals transmitted by the signal acquisition unit 41 into digital electrical signals and transmits them to the control circuit board 30. The control circuit board 30 then generates photometry data based on the digital electrical signals and transmits the photometry data to the transparent display screen 20 for display.

[0034] In one embodiment of this application, the signal acquisition unit may be disposed inside the housing 10 and electrically connected to the control circuit board 30 via the signal processing unit. Moreover, the signal acquisition unit and the camera 60 are located on the same side of the housing 10.

[0035] The ranging module 50 is mounted on the housing 10 and is used to measure the distance signal between the photographer and the camera 100. The ranging module 50 is electrically connected to the terminal device and is used to transmit the distance signal to the terminal device so that the terminal device can adjust the camera's shooting parameters or image output range according to the distance signal.

[0036] In one embodiment, the shooting parameter can be the focal length of the camera 60. Specifically, the camera 100 can automatically adjust the focal length of the camera 60 according to the distance between the photographer and the camera 100 measured by the ranging module 50, thereby obtaining the output image.

[0037] In another embodiment, the camera 100 can adjust the camera's image output range based on a distance signal. Specifically, the original image captured by the camera 100 can be automatically cropped based on the distance changes between the photographer and the camera 100 measured by the ranging module 50, and then the cropped output image is transmitted to the terminal device. In this way, the output image seen by the photographer on the terminal device can more closely match the optical viewfinder range seen by the photographer through the transparent display screen 20 during shooting, allowing them to experience the fun of "blind shooting." For example, with a camera that is much simpler than traditional film cameras and SLR cameras, as described in this application, one can easily experience film-era shooting.

[0038] The ranging module 50 includes a transmitting unit 51, a receiving unit 52, and a substrate 55. The transmitting unit 51 is disposed on the substrate 55 and is used to transmit light signals to the photographer. The receiving unit 52 is disposed on the substrate 55 and is used to receive light signals reflected back by the photographer.

[0039] The camera 60 is electrically connected to the module interface of the control circuit board 30 via a ribbon cable. It is mounted behind the camera hole on the faceplate 11, with the front end of the lens flush with the hole on the faceplate 11. A sponge gasket is placed between the lens and the hole to prevent light leakage. The camera 60 is used to capture optical viewfinder images in real time and transmit the image signal to the transparent display screen 20 at a specified frame rate to realize the viewfinder function. The camera 60 can receive parameter adjustment commands from the control circuit board 30 and then adjust the shutter speed, ISO, and focus distance according to the commands.

[0040] The power supply module 70 is electrically connected to the power interface of the control circuit board 30 and is installed in the power supply module mounting slot of the bottom shell 12. The power supply module 70 supports powering the control circuit board 30 and other electronic components or enabling wired data transmission through the data interface 16 (such as a Type-C interface).

[0041] The camera includes a wireless transmission module electrically connected to a control circuit board 30. This wireless transmission module is electrically connected to a terminal device for transmitting image data captured by the camera to the terminal device.

[0042] In one embodiment of this application, the signal acquisition unit 41 in the photometry module 40 can be any photoelectric sensing element capable of converting light energy into an electrical signal, such as a photosensor, photodiode, photoresistor, or phototransistor. The principle of the signal acquisition unit 41 in acquiring light signals is based on the photoelectric effect of semiconductors, generating corresponding photoelectric signals (such as changes in current or resistance) by sensing the energy of incident photons. A light-transmitting cover can also be provided on the outside of the signal acquisition unit 41 to prevent dust from contaminating the photosensitive element.

[0043] The signal processing unit 42 may employ a combination circuit or integrated chip comprising one or more of the following: an amplifier circuit, a filter circuit, and an analog-to-digital converter. The signal processing unit 42 operates by receiving weak photoelectric signals from the signal acquisition unit 41, amplifying and filtering the photoelectric signals using an internally built transimpedance amplifier, removing environmental noise, and finally outputting a stable and regular digital electrical signal.

[0044] Subsequently, the signal processing unit 42 transmits the obtained digital electrical signal to the data processing unit of the control circuit board 30, so that the data processing unit can generate specific metering data. Finally, the control circuit board 30 transmits the specific metering data to the transparent display screen 20, so that the transparent display screen 20 displays the metering data while framing the shot. For example, the metering data is displayed in the form of a combination of parameter values ​​in the area near the edge of the transparent display screen 20, and the metering data includes at least ISO, aperture, and shutter speed.

[0045] In one embodiment of this application, to optimize spatial layout, improve signal quality, and reduce system power consumption, the signal acquisition unit 41 and signal processing unit 42 in the photometry module 40 can be integrated into a single structure, such as an integrated photoelectric sensor chip. This integrated photoelectric sensor chip integrates a photodiode (as the signal acquisition unit 41), a transimpedance amplifier, an analog-to-digital converter, and a simple digital interface logic circuit (collectively serving as the signal processing unit 42) onto a single semiconductor chip. It can directly output processed digital signals through standard I²C or SPI digital interfaces, greatly simplifying the connection with the control circuit board 30. This effectively reduces the physical distance and parasitic parameters between components within the photometry module 40, thereby reducing noise interference during signal transmission, improving the accuracy and stability of photometry data, and facilitating a more compact design of the internal structure of the camera 100.

[0046] In another embodiment of this application, the camera 60 further includes an image acquisition unit. This image acquisition unit is electrically connected to the signal processing unit of the metering module 40, and is used to acquire the light signal of the target object and output a photoelectric signal as the signal acquisition unit of the metering module 40 in metering mode; or, in shooting mode, to generate a shooting image signal. Exemplarily, the image acquisition unit can be a photosensitive component that converts an optical image into an electrical signal, such as an image sensor, CMOS photosensitive element, CCD photosensitive element, or photodiode array. This simplifies the structure of the metering module 40, eliminating the need for additional photoelectric sensing elements, and directly reuses the image acquisition unit of the camera 60 to acquire the light signal, thereby obtaining metering data displayed on the transparent display screen 20.

[0047] This invention achieves a "what you see is what you get" effect by integrating the viewfinder image and metering data into a transparent display screen 20 for simultaneous display. This allows the photographer to obtain key exposure parameters (such as exposure value and ISO suggestion) without taking their eyes off the viewfinder while composing the shot, greatly improving the continuity and efficiency of the shooting process. This not only effectively avoids missed shooting opportunities due to shifting the viewfinder, but also assists the photographer in accurately and quickly setting parameters such as shutter speed and aperture based on real-time, intuitive data feedback. It fundamentally solves the technical problem of overexposure or underexposure caused by delayed or misjudged parameter settings, ensuring stable and controllable image quality.

[0048] In one embodiment of this application, a mode switching switch can also be provided on the housing 10. This mode switching switch can be a toggle, a slider, or a similar structure; this application does not limit the specific type of switch. Furthermore, multiple icons can be printed on the surface of the housing 10 of the camera 100, corresponding to various operating modes of the camera 100, including a power-off mode, shooting modes (photo mode and video mode), and a metering mode. The metering mode includes the process of using either the signal acquisition unit in the metering module 40 or the image sensor of the camera 60 to acquire the light signal of the target object, thereby achieving the metering function.

[0049] When the photographer selects a metering mode, the metering module 40 or the camera 60 acquires the light signal of the target and transmits it to the control circuit board 30. The control circuit board 30 first generates metering data based on the light signal. This metering data includes ISO sensitivity, aperture value (expressed as f-number), and shutter speed (default unit is seconds). Then, the obtained metering data is transmitted to the transparent display screen 20 so that the transparent display screen 20 displays the metering data in a designated area of ​​the optical viewfinder (such as the edge or superimposed on the image), for example, in the form of "ISO 400", "f / 2.8", "1 / 2s", etc.

[0050] Furthermore, after the photographer intuitively obtains the metering data through the transparent display screen 20, they can switch to either photo mode or video mode. In photo or video mode, the metering data can be used to automatically adjust the camera's exposure parameters, including aperture, shutter speed, and ISO, thereby achieving precise setting of exposure parameters. For example, the control circuit board 30 can automatically calculate and set the aperture size, shutter speed, and ISO value of the camera 60 based on the metering data to ensure accurate exposure and avoid overexposure or underexposure. In some other embodiments, the metering data obtained in metering mode can also be transmitted wirelessly to the terminal device, so that the terminal device can simultaneously obtain the metering data of the shooting scene.

[0051] This embodiment integrates the mode switching switch and metering data display, allowing photographers to intuitively preview metering data (such as ISO, aperture, and shutter speed) in metering mode. They can then switch to shooting mode with one click and automatically apply these parameters, thereby achieving seamless integration between metering assessment and shooting execution, improving operational convenience and shooting efficiency.

[0052] In one embodiment of this application, the transparent display screen 20 includes a sensing unit and a processing unit, the processing unit being electrically connected to the sensing unit. The sensing unit is used to capture physical signals of the photographer's touch action and transmit these physical signals to the processing unit. The processing unit is used to generate coordinate data of a specific area of ​​the viewfinder based on the physical signals transmitted by the sensing unit.

[0053] The processing unit is electrically connected to the photometry module 40 and is used to transmit coordinate data to the photometry module 40 so that the photometry module 40 can detect the light signal of the corresponding position area based on the coordinate data.

[0054] In one embodiment of this application, when a photographer needs to meter a specific area in the viewfinder, this can be achieved through touch operations such as tapping, selecting, or dragging on the transparent display screen 20. The specific process includes: First, the sensing unit (such as a capacitive touch film) built into the transparent display screen 20 captures the photographer's touch actions (such as tapping or swiping with a finger) in real time, converting the physical contact signal into an electrical signal. Then, the processing unit denoises and analyzes the electrical signal, accurately calculating the coordinate data corresponding to the touch operation. For example, tapping generates a single coordinate, selecting a frame generates diagonal coordinates to define a rectangular area, and dragging generates a series of continuous coordinates to form a motion trajectory. Next, the processing unit transmits the coordinate data to the metering module 40. After receiving the coordinate data, the signal processing unit 42 within the metering module 40 immediately drives the signal acquisition unit 41 to adjust the metering strategy. For tapping, high-precision spot metering is performed, acquiring only the light signal within a very small range of the coordinate point. For areas defined by selecting or dragging, area evaluation metering is performed, comprehensively acquiring and analyzing the light signal within the closed or open area. Finally, the generated targeted metering data is sent back to the control circuit board 30, which then transmits it to the transparent display screen 20. The transparent display screen 20 displays the metering data and the viewfinder image simultaneously on the screen, thus providing the photographer with an intuitive, flexible, and accurate local metering function.

[0055] In another embodiment of this application, when the photographer selects a metering mode, the transparent display screen 20 can display an electronic viewfinder image of the optical viewfinder, so that the photographer can select metering modes such as partial metering and center metering through screen operation.

[0056] Furthermore, the transparent display screen 20 can activate the electronic viewfinder image in response to the photographer's operation of the screen, thus meeting the photographer's needs for different shooting experiences and enabling a quick switch between the shooting feel of the smart electronic era and the shooting feel of the retro film era. If the photographer does not operate the screen of the transparent display screen 20 in metering mode, the camera 100 can perform metering according to the system's default metering mode.

[0057] In some embodiments, in response to the user selecting to enter photo mode or video mode, the transparent display screen 20 will stop outputting the electronic viewfinder image. At this time, the user can directly see the optical viewfinder image through the transparent display screen 20, and the metering data obtained in metering mode can also be displayed through the transparent display screen 20. In other embodiments, in response to the user selecting to enter photo mode or video mode, the transparent display screen 20 does not output the electronic viewfinder image, and displays a focus symbol on the transparent display screen 20. The focus symbol can be a focus dot symbol displayed in the center area of ​​the transparent display screen 20, or a focus frame symbol displayed around or at the four corners of the transparent display screen 20.

[0058] It should be understood that the area seen by the photographer through the frame formed around the transparent display screen 20 by the housing 10 is the optical viewfinder, which changes with the distance between the photographer and the camera. The area corresponding to the mounting area 13 can be regarded as the camera's viewfinder. In some embodiments, the mounting area 13 and the housing 10 have the same vertical axis of symmetry, that is, the mounting area 13 is centrally located; while in other embodiments, the mounting area may be positioned slightly to the left and slightly to the right.

[0059] In one embodiment of this application, the ratio of the projected area of ​​the mounting area 13 to the housing 10 can be 1:5 to 9:10, and specifically it can be 1:3, 1:2, 2:3, 3:4, 4:5, etc. That is, compared with the small reflective viewfinder of traditional SLR cameras, the camera in this embodiment can be equipped with a direct transmission optical viewfinder with a relatively large area. The photographer does not need to bring his eyes close to the viewfinder for optical framing. He only needs to hold the camera away from or close to himself to achieve optical framing and shooting, thus taking into account the retro shooting experience, the portability of the camera, cost and other factors.

[0060] In one embodiment of this application, the emitting unit 51 of the ranging module 50 may be a device capable of emitting invisible light of a specific wavelength (such as near-infrared light or laser light), such as a laser diode or a vertical-cavity surface-emitting laser. The emitting unit 51 is used to generate and emit a modulated light signal toward the target being measured. The receiving unit 52 may be an optical sensor sensitive to the light signal of that wavelength, such as a photodiode, a single-photon avalanche diode, or a CCD / CMOS photosensitive array. The receiving unit 52 is used to receive and detect the attenuated light signal reflected back from the target being measured. The substrate 55 may be a printed circuit board or a flexible circuit board, which provides physical support and precise relative positioning for each unit, and also enables electrical connection and signal transmission through its internal circuitry.

[0061] When the transmitting unit 51 emits a light signal towards the photographer, the signal is reflected by the photographer and captured by the receiving unit 52. The receiving unit 52 transmits the captured signal to the control unit in the ranging module 50. The control unit calculates the precise real-time distance between the photographer and the camera based on the speed of light or geometric relationships by calculating the "time difference" between transmission and reception (time-of-flight principle) or by analyzing the "position offset" of the returned light point on the receiving sensor array (triangulation principle).

[0062] In one embodiment of this application, the ranging module 50 can transmit distance data to a terminal device, enabling the terminal device to map the measured distance to corresponding image size parameters and framing range parameters based on a preset calibration model. Subsequently, control signals are generated based on these parameters to control the camera 60 to adjust its focal length. For example, when the distance decreases, the focal length of the camera 60 is increased to reduce the framing range, matching the close-up view seen by the photographer through the viewfinder. Alternatively, the terminal device can perform operations such as cropping and scaling on the image captured by the camera based on the distance data. For example, when the distance increases, the imaging area is proportionally enlarged to ensure that the distant view matches what is seen in the viewfinder, ultimately outputting an image whose size and field of view substantially match the scene observed by the photographer through the viewfinder.

[0063] The ranging module 50 can also transmit distance data to the transparent display screen 20 so that the transparent display screen 20 can display the view, metering data and distance data synchronously.

[0064] In one embodiment of this application, the ranging module 50 may be a TOF (Time of Flight) module, which includes a substrate 55, a transmitting unit 51, a receiving unit 52, and a control unit. The substrate 55 has a first step, a second step, and a third step. The transmitting unit 51 is disposed on the first step of the substrate 55 and is used to transmit a light signal to the photographer. The receiving unit 52 is disposed on the second step of the substrate 55 and is used to receive the light signal reflected back by the photographer. The control unit is disposed on the third step of the substrate 55 and is used to control the transmitting unit 51 to transmit a light signal to the photographer and to control the receiving unit 52 to receive the light signal reflected back by the photographer. The control unit is also used to calculate the time difference between the light signal emitted by the transmitting unit 51 and the light signal received by the receiving unit 52, and to obtain the distance between the photographer and the camera based on the time difference. For example, the distance between the photographer and the camera can be calculated using the formula "distance = (speed of light × time difference t) / 2".

[0065] In one embodiment of this application, the transparent display screen 20 is a transparent segment display screen, whose overall structure consists of two parts: a transparent display area and a segment display area. The transparent display area, serving as the core viewfinder, uses a high-transmittance transparent substrate (such as glass or transparent resin), allowing the photographer to directly observe the real-time scene captured by the camera through the screen, simulating the intuitive viewing experience of a traditional optical viewfinder. The segment display area is integrated into the edge of the transparent area (e.g., below the screen) and consists of preset fixed light-emitting segments. These segments can be illuminated through combinations to display core metering data in simple numerical forms (such as the specific value of exposure in EV, or the value of light intensity) or icon forms (such as an overexposure warning icon or a low-light warning icon). For example, when the metering module detects strong ambient light, the segment display area can illuminate a "+2" combination to indicate exposure compensation suggestions, while simultaneously displaying a sun icon to indicate a strong light environment, ensuring that the photographer can quickly obtain key light information while framing the shot.

[0066] In another embodiment of this application, the transparent display screen 20 can be a micro light-emitting diode (Micro LED) transparent screen or an organic light-emitting diode (OLED) transparent screen. Both types of screens possess pixel-level light control capabilities, meaning that each luminous pixel on the screen can independently control its brightness and color without relying on a fixed segment code structure. They can display metering data at any position on the screen (such as near the subject in the viewfinder) and in any graphic (such as numerical values, curves, dynamic scale bars, etc.). For example, when shooting a backlit scene, the screen can directly display the number "EV=5.3" (EV represents the metering value) next to the dark area, while simultaneously using a gradient curve to indicate the light change trend from the dark to the bright area. If the ambient light suddenly changes, the position and graphic of the displayed data can also be adjusted in real time. Thus, it does not obstruct key viewpoints while allowing the photographer to intuitively understand the light distribution.

[0067] In another embodiment of this application, the transparent display screen 20 can also be an OLED transparent touch-sensitive screen (Organic Light Emitting Diode Transparent Touch-Sensitive Screen). In addition to the display functions of the aforementioned OLED transparent screen, the OLED transparent touch-sensitive screen also integrates dedicated interactive components, specifically including a sensing unit and a control unit electrically connected to the sensing unit.

[0068] The sensing unit can employ a capacitive touch film, which is adhered to the inner side of the transparent display screen. The film is divided into several uniform capacitor matrices (assuming a screen resolution of 1920×1080, the corresponding pixel density of the capacitor matrix is ​​1080P). When the user touches the screen (such as clicking a point on the screen, swiping the screen, long-pressing, or selecting a frame), the finger acts as a conductor, changing the charge of the capacitors at the contact point and around it. The sensing unit captures this change in capacitance (weak current fluctuation) and transmits the original electrical signal to the control unit in real time via a ribbon cable. The control unit has a built-in touch signal processing chip. First, it performs noise reduction processing on the received raw electrical signal to filter out environmental electromagnetic interference and noise caused by slight finger tremors. Then, based on the screen pixel coordinate system (the origin is set to the upper left corner of the screen, the X-axis is horizontal to the right, and the Y-axis is vertical to the bottom, with a coordinate range of X: 0-1919 and Y: 0-1079), it maps the processed electrical signal. For example, the area with the strongest capacitance change corresponds to the midpoint of the X-axis (960 pixels) and the midpoint of the Y-axis (540 pixels) of the physical location on the screen. The control unit directly generates coordinate data (960, 540). Next, the control unit transmits the coordinate data to the light metering module 40 through a ribbon cable so that the light metering module 40 can perform light metering on the corresponding area.

[0069] In one embodiment of this application, a shooting system is also included, comprising a camera 100 and a gimbal. The gimbal consists of a mechanical frame, a drive motor, a sensor array, and a controller. The camera 100 is fixed to the support at the far end of the gimbal. When any axis of the gimbal rotates, the orientation of the camera 100 in space is directly changed, thereby adjusting the shooting angle.

[0070] Specifically, the gimbal's mechanical frame can adopt a three-axis design, including a yaw axis, a pitch axis, and a roll axis. Each axis is driven by a brushless DC motor in conjunction with a reduction gear mechanism. The sensor group, with an inertial measurement unit as its core, integrates a gyroscope and an accelerometer to detect the angular velocity and linear acceleration changes of the gimbal in each degree of freedom in real time. The controller continuously receives attitude data from the sensors, first comparing it with the actual angle signals fed back in real time by the encoders of each axis motor, and then instantaneously calculating a compensation torque of equal magnitude and opposite direction to the jitter using a built-in algorithm (such as a PID control algorithm). This torque drives the brushless motor to rotate, which in turn drives the corresponding axis through the reduction gear mechanism. This process effectively counteracts external disturbances while precisely adjusting and stabilizing the camera 100° in the specified framing position.

[0071] In one embodiment of this application, when using the camera of this invention, the photographer can first directly observe the real scene to be photographed through the transparent display screen 20, which serves as the viewfinder. Then, while framing the shot, the metering module 40 inside the camera collects ambient light signals in real time and transmits them to the control circuit board 30 to generate metering data (such as exposure value and ISO suggestion). Next, the transparent display screen 20 synchronously overlays this metering data onto a designated area of ​​the screen. This allows the photographer to intuitively read key exposure parameters at the edge of the screen or in a designated area without looking away while framing the shot. Furthermore, the photographer can directly adjust the camera based on the metering data or set parameters such as shutter speed and aperture via the touchscreen, and complete the shot the moment the parameters are confirmed to be appropriate. Therefore, this invention achieves seamless integration of observation, metering, and parameter adjustment, greatly improving the intuitiveness of operation and the efficiency of image processing, and avoiding overexposure or underexposure caused by parameter setting errors, ensuring stable and controllable image quality.

[0072] The terminal devices in this application embodiment include, but are not limited to, mobile portable electronic terminals such as mobile phones, tablets, and SLR cameras, which have functions such as data reception and image acquisition / processing / output.

[0073] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A camera, characterized in that, include: The outer casing has a through mounting area; A transparent display screen is disposed in the mounting area of ​​the housing, and the transparent display screen is used to convert the shooting target into an optical viewfinder image for the photographer to observe; A camera, used to capture images of the target; A control circuit board is disposed inside the housing and electrically connected to the transparent display screen; The light metering module includes a signal acquisition unit and a signal processing unit electrically connected to the signal acquisition unit. The signal acquisition unit is used to acquire light signals from the external shooting environment and output photoelectric signals corresponding to the light signals to the signal processing unit. The signal processing unit is used to convert the photoelectric signals transmitted by the signal acquisition unit into digital electrical signals and transmit them to the control circuit board, so that the control circuit board generates light metering data according to the digital electrical signals and transmits the light metering data to the transparent display screen for display.

2. The camera according to claim 1, characterized in that, The signal acquisition unit is disposed inside the housing and is electrically connected to the control circuit board through the signal processing unit. The signal acquisition unit and the camera are located on the same side of the housing.

3. The camera according to claim 1, characterized in that, The control circuit board includes a data processing unit and a transmission unit electrically connected to the data processing unit. The data processing unit is electrically connected to the signal processing unit and is used to generate the photometric data according to the digital electrical signal transmitted by the signal processing unit, and transmit the photometric data to the transparent display screen for display through the transmission unit.

4. The camera according to claim 1, characterized in that, The transparent display screen includes a sensing unit and a processing unit electrically connected to the sensing unit; the sensing unit is used to capture physical signals of the photographer's touch action and transmit the physical signals to the processing unit; the processing unit is used to generate coordinate data of a specific area in the optical viewfinder based on the physical signals transmitted by the sensing unit. The processing unit is electrically connected to the photometry module and is used to transmit the coordinate data to the photometry module so that the photometry module can detect the light signal of the corresponding area based on the coordinate data.

5. The camera according to claim 1, characterized in that, The camera also includes a ranging module, which is disposed on the housing and is used to measure the distance signal between the photographer and the camera. The ranging module is electrically connected to the terminal device and is used to transmit the distance signal to the terminal device so that the terminal device can adjust the shooting parameters or image output range of the camera according to the distance signal.

6. The camera according to claim 5, characterized in that, The ranging module includes: substrate; A transmitting unit, disposed on the substrate, is used to transmit light signals to the photographer; A receiving unit, disposed on the substrate, is used to receive the light signal reflected back by the photographer; A control unit, disposed on the substrate, is used to control the transmitting unit to transmit light signals to the photographer, and to control the receiving unit to receive the light signals reflected back by the photographer, as well as to calculate the time difference between the light signals transmitted by the transmitting unit and the light signals received by the receiving unit, and to obtain the distance between the photographer and the camera based on the time difference.

7. The camera according to claim 1, characterized in that, The camera also includes a power supply module, which is electrically connected to the control circuit board and is used to supply power to the control circuit board.

8. The camera according to claim 1, characterized in that, The camera also includes a decorative piece disposed on the housing, the decorative piece being arranged on one side of the transparent display screen; and / or the ratio of the projected area of ​​the mounting area to that of the housing is 1:5 to 9:

10.

9. The camera according to claim 1, characterized in that, The camera includes a wireless transmission module electrically connected to the control circuit board. The wireless transmission module is electrically connected to a terminal device and is used to transmit the image data captured by the camera and / or the light metering data to the terminal device.

10. The camera according to claim 1, characterized in that, The camera includes an image acquisition unit, which is electrically connected to the signal processing unit of the metering module. The image acquisition unit is used to output the photoelectric signal as the signal acquisition unit of the metering module in metering mode; or to generate a shooting image signal in shooting mode.

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