Single lens reflex one-time imaging camera with replaceable lens

Abstract

The utility model discloses a single lens reflex one-time imaging camera with a replaceable lens, which comprises a camera body and photographic paper arranged in the camera body, and further comprises a replaceable lens bayonet, a mechanical shutter system, a single lens reflex optical view finding system and an FDU instant imaging module, the camera further comprises an interchangeable lens, the interchangeable lens is connected with the camera body through an interchangeable lens bayonet, and the interchangeable lens bayonet is connected with the camera body through a clamping device. The single lens reflex optical framing system comprises a reflector assembly, a pentaprism structure and a viewfinder, the reflector assembly is arranged behind the replaceable lens bayonet, the position of the reflector assembly is controlled through a mechanical shutter system to achieve switching between framing and shooting, and light enters from the replaceable lens, is reflected to the pentaprism structure through the reflector assembly and is finally projected to the viewfinder; the mechanical shutter system is arranged behind the reflector assembly; according to the scheme, the universality of the camera is optimized, and a user can freely replace the lens according to different scenes and enjoy the convenience of instant imaging at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of photographic equipment, in particular to a single-lens reflex instant imaging camera with interchangeable lenses. Background Art

[0002] Traditional instant cameras typically have fixed, non-replaceable lenses, while most use rangefinder systems, resulting in discrepancies between the actual shooting range and the viewing range. Furthermore, the integrated design of the lens and camera body limits the camera's versatility and image quality.

[0003] Chinese utility model patent CN201054064Y discloses a SLR-like digital camera with interchangeable and compatible lenses. This camera belongs to the field of digital cameras and primarily consists of a camera body, a dedicated lens, and compatible lens accessories. The camera body features an EVF (electronic viewfinder) and an LCD display for framing, and is a short-flange focal length camera body. A dust-proof curtain is located in front of the photosensitive imaging element, opening and closing with lens installation and removal. The dedicated lens is a short-flange focal length lens. The compatible lens accessories are designed for conventional SLR camera lenses with different mounts, and contain internal drive motors and signal conversion circuits. Electronic contacts connect the camera body, the dedicated lens, and the compatible lens accessories to transmit information. Digital photography is possible when the dedicated lens is installed on the camera body, while compatible lens accessories with different compatible mounts allow the use of conventional SLR camera lenses with different mounts, even manually focusable lenses. The aforementioned integrated lens-body design limits the camera's versatility and imaging quality.

[0004] In order to solve these problems, there is an urgent need for a camera that can replace lenses while retaining the instant imaging characteristics of Polaroid. Utility Model Content

[0005] In response to the problems raised by the above-mentioned background technology, the purpose of the present utility model is to provide a single-lens reflex instant imaging camera with interchangeable lenses, and to provide an instant imaging camera with a single-lens reflex optical viewfinder system and supporting multiple lens replacements. This design optimizes the versatility of the camera, allowing users to freely change lenses according to different scenarios while enjoying the convenience of instant imaging.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] A single-lens reflex instant imaging camera with interchangeable lenses, comprising a camera body and photographic film disposed within the camera body, and further comprising an interchangeable lens mount, a mechanical shutter system, a single-lens reflex optical viewfinder system, and an FDU instant imaging module;

[0008] Also included is an interchangeable lens, wherein the interchangeable lens is connected to the camera body via an interchangeable lens mount, and the interchangeable lens mount is connected to the camera body via a snap-fit ​​device;

[0009] The single-lens reflex optical viewfinder system comprises a mirror assembly, a penta-prism structure and a viewfinder, the mirror assembly is arranged behind the interchangeable lens mount, the position of the mirror assembly is controlled by a mechanical shutter system to realize the switching of viewfinder and shooting, light enters from the interchangeable lens, is reflected to the penta-prism structure through the mirror assembly, and is finally projected on the viewfinder.

[0010] The mechanical shutter system is arranged behind the mirror assembly and comprises shutter blades, a shutter frame and an electromagnet control device, the electromagnet control device is connected with the shutter blades, the shutter blades and the electromagnet control device are arranged in the shutter frame, and the shutter blades can be opened or closed.

[0011] The FDU instant imaging module comprises a developing solution extrusion roller, a photographic paper hook and a photographic paper output slot, the photographic paper hook is used for pushing the photographic paper out to the output slot, the photographic paper output slot is used for outputting the photographic paper, and the photographic paper is developed by extruding the developing solution through the developing solution extrusion roller.

[0012] Further limitation, the clamping device is made of metal.

[0013] Further limitation, the interchangeable lens mount is an EF mount.

[0014] Further limitation, the mirror assembly is fixedly connected with one end of a sliding block, the other end of the sliding block is connected with a spring device and a guide groove in the camera body, and the penta-prism structure is arranged behind the mirror assembly and is used for correcting the image direction in the light path of the lens.

[0015] Further limitation, the interchangeable lens mount is used for fixing the interchangeable lens, and further comprises an electronic contact, the electronic contact is in communication connection with the interchangeable lens and is used for controlling focal length and aperture parameters.

[0016] Further limitation, the mechanical shutter system is used for controlling exposure time.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. interchangeable lens design: the camera of the utility model is equipped with a standard lens mount (such as an EF mount), which is compatible with various single-lens reflex camera lenses on the market; users can select different types of lenses such as wide-angle and telephoto lenses according to shooting requirements, fully exert the diversified functions of the lenses; by replacing the lens, users can realize different focal length, depth of field and aperture shooting effects, greatly improving the applicability and professionalism of the camera in various photography scenes.

[0019] 2. Single-lens reflex optical viewfinder system: The camera adopts a single-lens reflex viewfinder system, so that light is directly projected into the viewfinder after passing through the lens, ensuring that the viewfinder range is highly consistent with the imaging range, solving the error problem of the traditional Polaroid paraxial viewfinder; through the mirror and pentaprism structure, the user can see a picture that is completely consistent with the actual shooting content, greatly improving the accuracy of the viewfinder and the shooting experience.

[0020] 3. Camera built-in FDU instant imaging module, which automatically generates a physical photo after shooting through the developing liquid extrusion and paper pushing mechanism; no matter which lens is selected, the user can obtain high-quality instant imaging effect, and the instant imaging paper of multiple formats is also supported, ensuring the flexibility of use.

[0021] 4. Wide lens compatibility: through the interchangeable lens mount design of the camera, the user can use most of the single-lens reflex lenses on the market, further enhancing the imaging capability and photography style diversity of the camera, including the application of wide-angle, macro, and other professional lenses.

[0022] 5. Higher imaging quality: by supporting the replacement of multiple single-lens reflex lenses (including wide-angle, telephoto, macro, and other professional lenses), the user can select the most suitable lens according to the shooting scene, thereby significantly improving the clarity, color restoration, and depth of field performance of the photo.

[0023] 6. Accurate viewfinder and imaging: the single-lens reflex viewfinder system is adopted, so that what the viewfinder sees is the final imaging, overcoming the technical bottleneck of the inconsistency between the traditional paraxial viewfinder and the imaging range. Enhanced camera compatibility: the camera is equipped with a standard lens mount, which can be compatible with most single-lens reflex camera lenses on the market. Compared with the traditional Polaroid camera with integrated lenses, the present application significantly expands the flexibility of lens selection.

[0024] 7. Economic and social benefits: the camera simplifies the combination of professional cameras and Polaroids, reduces production costs, and provides users with a cost-effective professional imaging solution; the interchangeable lens function of the camera prolongs the service life of the equipment, reduces the hardware obsolescence problem caused by single lens design, and is expected to promote the further integration of the professional photography market and the instant imaging market, providing users with more diversified choices.

[0025] Through the above technical effects, the present application has significant social and economic benefits in practical application, meeting the dual needs of the market for high-quality imaging and convenient shooting. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application can be further illustrated by the non-limiting embodiments shown in the accompanying drawings;

[0027] Figure 1Structure schematic view of the interchangeable lens single reflex one-time imaging camera embodiment of the present application;

[0028] Figure 2 Front view of the interchangeable lens single reflex one-time imaging camera embodiment of the present application;

[0029] Figure 3 A-A section view of the interchangeable lens single reflex one-time imaging camera embodiment of the present application;

[0030] The main element symbol is explained as follows: interchangeable lens bayonet 1, mechanical shutter system 2, mirror assembly 3, viewfinder 4, five prism structure 5, FDU instant imaging module 6. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art can better understand the present application, the following will be combined with the drawings and examples to further illustrate the technical scheme of the present application. The following will be combined with the drawings in the embodiments of the present application, the technical scheme in the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the present application.

[0032] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the specific posture changes, the directionality indications will also change accordingly.

[0033] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the person skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0034] As Figure 1The utility model discloses a single-lens reflex one-time imaging camera with replaceable lens, which comprises a camera body and a photographic paper arranged in the camera body, and further comprises a replaceable lens bayonet 1, a mechanical shutter system 2, a single-lens reflex optical viewfinder system and an FDU instant imaging module 6.

[0035] The utility model also comprises a replaceable lens, which is connected with the camera body through the replaceable lens bayonet 1, and the replaceable lens bayonet 1 is connected with the camera body through a clamping device.

[0036] The single-lens reflex optical viewfinder system comprises a mirror assembly 3, a penta prism structure 5 and a viewfinder 4. The mirror assembly 3 is arranged behind the replaceable lens bayonet 1, and its position is controlled by the mechanical shutter system 2 to realize the switching between viewfinder and shooting. Light enters the replaceable lens, is reflected by the mirror assembly 3 to the penta prism structure 5, and is finally projected onto the viewfinder 4.

[0037] The mechanical shutter system 2 is arranged behind the mirror assembly 3 and comprises shutter blades, a shutter frame and an electromagnet control device. The electromagnet control device is connected with the shutter blades, and the shutter blades and the electromagnet control device are arranged in the shutter frame. The shutter blades can be opened or closed.

[0038] The mechanical shutter system 2 controls the length of time for light to enter the FDU instant imaging module 6 to control exposure.

[0039] The FDU instant imaging module 6 comprises a developing liquid extrusion roller, a photographic paper hook and a photographic paper output slot. The photographic paper hook is used to push the photographic paper out to the output slot, and the photographic paper output slot is used to output the photographic paper. The photographic paper is developed by extruding developing liquid through the developing liquid extrusion roller.

[0040] Preferably, the clamping device is made of metal. Such a structural design can ensure the convenience and stability of lens replacement.

[0041] Preferably, the replaceable lens bayonet 1 is an EF bayonet. Such a structural design can be compatible with various single-lens reflex camera lenses on the market.

[0042] Preferably, the utility model further comprises a sliding block and a spring device. One end of the mirror assembly 3 is fixedly connected with the sliding block, and the other end of the sliding block is connected with the spring device and a guide groove in the camera body. The penta prism structure 5 is arranged behind the mirror assembly 3 and is used to correct the image direction in the light path of the lens. When the shutter is pressed, the mirror assembly 3 rapidly slides along the guide groove, so that light directly enters the shooting light path from the lens. Through the reflection of the penta prism structure 5, light enters the viewfinder 4 from the mirror, so that the user sees the same picture in the viewfinder as the actual shooting content.

[0043] Preferably, the interchangeable lens bayonet 1 for fixing the interchangeable lens further comprises electronic contacts in communication with the interchangeable lens for controlling focal length and aperture parameters.

[0044] Preferably, the mechanical shutter system 2 is used to control the exposure time. Such a structural design ensures the intensity and duration of light entering the photographic paper, and the FDU instant imaging module 6 starts the developing and output process immediately after exposure.

[0045] The working principle of the utility model:

[0046] 1、When the user needs to replace the lens, just rotate the lens and the locking mechanism of the bayonet, take off the lens from the camera body, and then install other lenses against the bayonet. After the lens is locked, the electronic contacts in the bayonet automatically contact the electronic interface of the lens, ensuring that the camera can control the aperture, focal length and other parameters of the lens. The user can choose different lenses according to different shooting needs to achieve multi-focal length and multi-functional photography effect. By replacing different types of lenses, such as wide-angle, telephoto or macro, various photography scenes can be handled, greatly improving the adaptability and imaging quality of the camera.

[0047] 2、When the shutter is pressed, the mirror will quickly flip, clearing the light path, so that the light directly enters the photosensitive element or the FDU instant imaging module 6. After the mirror assembly 3 returns to the original position, it returns to the viewfinder state. The SLR optical viewfinder system ensures the viewfinder effect of what you see is what you get. The picture the user sees in the viewfinder 4 is the final imaging effect, eliminating the viewfinder error of the traditional Polaroid camera off-axis viewfinder.

[0048] 3、When the shutter button is pressed, the electromagnet drives the shutter blade to move through the lever structure, and the open blade opens to allow light to enter the photosensitive element or photographic paper. After exposure, the shutter blade automatically closes to prevent light from continuing to enter; the mechanical shutter system 2 realizes accurate exposure of the photographic paper through precise mechanical control, ensuring the exposure time and imaging quality of each photo.

[0049] 4、After the shutter is opened, the light is projected onto the photographic paper through the lens for exposure; after the exposure is completed, the FDU instant imaging module 6 is started, and the photographic paper is squeezed by the roller to gradually develop; the photographic paper is pushed out of the output slot, and the user can obtain a complete photo. The FDU instant imaging module 6 realizes the core function of Polaroid, that is, the user can directly obtain the photo product after shooting without additional processing, enhancing the instant imaging experience.

[0050] One of the embodiments of the utility model:

[0051] When a user shoots a landscape, a wide-angle lens can be used to shoot a large scene; by changing the lens, the camera can accurately capture a wide field of view, and the instant imaging module develops quickly, so the user can obtain a finished photo within 20 seconds. This design ensures that the camera can not only flexibly switch lenses, but also quickly generate high-quality photos, greatly improving the convenience of shooting and the professionalism of imaging.

[0052] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application shall be covered by the claims of the present application.

Claims

1. A single-lens reflex instant camera with interchangeable lenses, comprising a camera body and photographic paper disposed within the camera body, characterized in that: It also includes an interchangeable lens mount (1), a mechanical shutter system (2), a SLR optical viewfinder system, and an FDU instant imaging module (6); It also includes an interchangeable lens, wherein the interchangeable lens is connected to the camera body via an interchangeable lens mount (1), and the interchangeable lens mount (1) is connected to the camera body via a snap-fit ​​device; The SLR optical viewfinder system comprises a reflector assembly (3), a pentaprism structure (5) and a viewfinder (4); the reflector assembly (3) is arranged behind an interchangeable lens mount (1); its position is controlled by a mechanical shutter system (2) to achieve switching between framing and shooting; light enters from the interchangeable lens, is reflected by the reflector assembly (3) to the pentaprism structure (5), and is finally projected onto the viewfinder (4); The mechanical shutter system (2) is arranged behind the reflective mirror assembly (3), and comprises a shutter blade, a shutter frame and an electromagnet control device, wherein the electromagnet control device is connected to the shutter blade, the shutter blade and the electromagnet control device are arranged in the shutter frame, and the shutter blade can be opened or closed; The FDU instant imaging module (6) comprises a developer extrusion roller, a photo paper hook and a photo paper output slot. The photo paper hook is used to push the photo paper to the output slot. The photo paper output slot is used to output the photo paper. The photo paper is developed by squeezing the developer through the developer extrusion roller.

2. The single-lens reflex instant camera with interchangeable lenses according to claim 1, wherein: The engaging device is made of metal.

3. The single-lens reflex instant camera with interchangeable lenses according to claim 1, wherein: The interchangeable lens mount (1) is an EF mount.

4. The single-lens reflex instant camera with interchangeable lenses according to claim 1, wherein: The invention also includes a slider and a spring device, wherein the reflector assembly (3) is fixedly connected to one end of the slider, and the other end of the slider is connected to the spring device and a guide groove in the camera body. The pentaprism structure (5) is arranged behind the reflector assembly (3) and is used to correct the image direction in the lens optical path.

5. The single-lens reflex instant camera with interchangeable lenses according to claim 1, wherein: The interchangeable lens mount (1) is used for fixing the interchangeable lens and further comprises electronic contacts, which are communicatively connected with the interchangeable lens and are used for controlling focal length and aperture parameters.

6. The single-lens reflex instant camera with interchangeable lenses according to claim 1, wherein: The mechanical shutter system (2) is used to control the exposure time.

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