CN201054064Y

CN201054064Y - Analog DSLR capable of replacing and being compatible with lens

Info

Publication number: CN201054064Y
Application number: CNU2007201429880U
Authority: CN
Inventors: 马力
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-20
Filing date: 2007-04-20
Publication date: 2008-04-30
Anticipated expiration: 2017-04-20

Abstract

The utility model discloses a similar single contrary digital camera, lens of which can be replaceable and compatible. The similar single contrary digital camera belongs to the digital camera field, and mainly comprises a camera body, a single purpose lens and a lens compatible accessory. The camera body uses an EVF electronic viewfinder and a LCD display screen to find a view, and is a short flange focus camera body. A dustproof protective curtain is arranged in front of a sensitization imaging element, and opened and closed along with the load and unload of the lens. The single purpose lens is a short flange focus lens. The lens compatible accessory is made by a tradition single contrary digital camera lens with different bayonets and the interior of the lens compatible accessory can be provided with a drive motor and a signal conversion circuit. The camera body, the single purpose lens and the lens compatible accessory are connected with each other to transfer information through electronic contacts. The camera body is provided with the single purpose lens, thereby realizing the digital photography. The camera body is provided with the lens compatible accessory with the different compatible bayonets, therefore, the traditional single contrary camera lens with the different bayonets can be used, and even the focusing lens can be moved by hands.

Description

The single anti-digital camera of class replaceable and compatible lens

Technical field

The utility model relates to digital camera, the single anti-digital camera of specifically a kind of class replaceable and compatible lens.

Background technology

Recent years, the development of civilian digital camera is advanced by leaps and bounds, and makes rapid progress.Along with the strong sales of high pixel digital camera, image quality issues more and more becomes the focus that people pay close attention to.Digital single-lens reflex camera (being called for short digital slr camera) is because of its photosensitive imaging element (CCD or CMOS image sensor) with big specification, and image quality captured in small digital cameras is best.But it continues to use traditional optical finder, find a view in the fuselage and use reflective mirror, make that the mirror group is far away excessively apart from imaging plane behind the camera lens, flange focal distance or title image planes location are excessive apart from (the camera lens mounting plane is flange focal distance or claims image planes location distance to the distance between the imaging plane), make bugeye lens and micro-lens the design, manufacture difficulty is excessive, and cost occupies from not following.And image is not last imaging effect seen in the optical finder of camera, is difficult to embody the innate advantage of digital camera What You See Is What You Get.The mechanical vibration that reflective mirror is dug and the curtain shutter motion is caused during shooting also greatly reduce the shooting success ratio.The single anti-digital camera of class in the market (is found a view with EVF electronic viewfinder and LCD display, the similar single-lens reflex camera of style of shooting, because of this class digital camera does not have the standard appellation, so with the single anti-title of the universally recognized class of photographic circle) there are not these drawbacks, but this class digital camera all is fixed camera lens, and photosensitive imaging element area is generally very little, and the image quality under making image quality especially ISO being provided with is difficult to satisfactory generally not as digital slr camera.Though the single anti-digital camera of the DSC-R1 type class that Sony is released has in recent years used an APS-C large scale CMOS image sensor that generally has only slr camera just to use, but it also is the digital camera of fixed non-exchange camera lens, has had a strong impact on its usable range.Buy this class camera, can not change camera lens, make that a large amount of traditional slr cameras (photographic circle claims to use the camera of Film Recording image to be traditional camera) camera lens can't use in a lot of cameraman's hands, cause the serious wasting of resources because of it.

Summary of the invention

The utility model has overcome the non-exchange camera lens of the single anti-digital camera of existing class, the shortcoming of image quality difference, provide a kind of and both can improve image quality, can change camera lens again, can also compatible traditional slr camera camera lens a kind of more rational, the solution of only utilizing prior art just can realize.In order to address the above problem, the utility model is achieved through the following technical solutions:

It is made up of compatible annex three parts of fuselage, special lens and camera lens.The flange-interface that cooperates special lens and the compatible annex of camera lens is arranged on the fuselage, and the compatible annex of special lens and camera lens can be assemblied on the fuselage respectively.Fuselage is the short flange focal distance fuselage of flange focal distance less than 35mm; the proofing dust and protecting heavy curtain that the photosensitive imaging element that but opens and closes with the camera lens dress is arranged in the fuselage; special lens is the flange focal distance short flange focal distance camera lens identical with fuselage; the camera lens rear side has the flange-interface that matches with fuselage; the compatible annex of camera lens front side is the compatible lens flange-interface; the flange-interface of rear side for matching with fuselage; compared with prior art; the beneficial effects of the utility model are: because of special lens is short flange focal distance camera lens; be wide-angle; manufacturing and designing of bugeye lens provided convenience; so the spoke degree reduces production costs greatly; compare with the camera lens of existing slr camera; it can design and manufacture wide-angle more of high quality and at a reasonable price and bugeye lens; because of fuselage is short flange focal distance fuselage; the space of compatible traditional slr camera camera lens is provided for the compatible annex of camera lens; use the compatible annex of different compatible bayonet sockets; just can use different manufacturers; traditional slr camera camera lens of brand even early stage manually camera lens; as long as that is to say a fuselage; mix the compatible annex of different bayonet sockets; just can use the conventional lenses of different bayonet sockets, the single anti-camera lens of tradition in a lot of photography staff is played a role.Because do not have traditional optical finder and curtain shutter, so do not have to turn on the reflective mirror and mechanical vibration that the curtain shutter motion is caused, machine is shaken dropped to minimum point, can improve the success ratio of shooting to a great extent.Because of finding a view with EVF electronic viewfinder and LCD display, the finding of finding a view effect both had been final exposure effect, this has embodied the innate advantage of digital photography, though the digital slr camera that to find a view with LCD occurred now, but providing the image sensor of image to LCD display is not the image sensor of last imaging, the image that it shows can not be consistent with final imaging, so be difficult to accomplish What You See Is What You Get, the utility model is found a view and same sensor is used in imaging, so there are not the problems referred to above.

Description of drawings

Fig. 1 is the fuselage main body;

Fig. 2 is a special lens;

Fig. 3 is the compatible lens annex;

Fig. 4 is a compatible lens annex rear perspective view.

Embodiment

On the basis of digital slr camera fuselage (1), (get its big photosensitive imaging element area and firm fuselage), cancellation focal plane curtain shutter, reflective mirror in cancellation optical finder and the machine, replace optical finder with EVF electronic viewfinder (2), improve the pixel count and the refresh rate of EVF electronic viewfinder, with near or reach visual experience when using optical finder, realize the shooting effect of What You See Is What You Get.At the preceding proofing dust and protecting heavy curtain (4) of establishing of photosensitive imaging element (3), to prevent contamination by dust and external force damage photosensitive imaging element.The loading and unloading stroke of available camera lens drives heavy curtain and opens and closes, and also can establish driving lever in addition or control heavy curtain with electric power in the machine to open and close.Establish a flange-interface on the fuselage, interface like this, both can adapt to wide-angle for short flange focal distance interface (with respect to 135 slr cameras), and manufacturing and designing of bugeye lens provides the space of realizing for the compatible annex (Fig. 3) of traditional slr camera camera lens again.Establish electronic contact (5) on the fuselage, to realize the electronic information exchange between the compatible annex of fuselage and special lens (Fig. 2) and fuselage and camera lens (Fig. 3).Design specialized camera lens (Fig. 2) is short flange focal distance camera lens, it both can be super wide-angle, wide-angle lens, in also can being, long Jiao and micro-lens, lens driving motor is placed camera lens pedestal (7), so both can improve the automatic focus speed of camera, also can make has more spaces to improve the picture signal processing power in the fuselage, the lift fuselage performance.The camera lens rear side is established electronic contact, realizes the electronic information exchange with fuselage.Design the compatible annex (Fig. 3) of a camera lens, the front side is compatible lens bayonet socket (11), different bayonet sockets can compatible different camera lens, the flange-interface of rear side for matching with fuselage, it has two effects, on the one hand it can compatible traditional slr camera camera lens, and it can prolong the flange focal distance of camera on the other hand, to reach the former designing requirement of compatible lens.The annex inner space can hold the signaling conversion circuit between lens driving motor and fuselage and the compatible lens, to adapt to the requirement that original fuselage motor driven camera lens and camera lens internal motor drive camera lens.Also establish electronic contact (13) on the annex, realize the electronic information exchange between fuselage and the camera lens.

During use, special lens (Fig. 2) is installed guide groove (9) insert fuselage along fuselage installing and locating guide rail (6), just can carry out digital photography, unload special lens, the compatible annex of camera lens (Fig. 3) by the preceding method fuselage of packing into, just can be used traditional slr camera camera lens even manual focusing camera lens.As the compatible annex of the camera lens of the EF of the Canon bayonet socket of packing into, just can use the EF of Canon bayonet socket camera lens, the compatible annex of the Nikon F-D bayonet socket camera lens of packing into just can use Nikon F-D bayonet socket camera lens.Only enumerated along the camera lens footpath bind mode of insertion machine body, the slide a kind of special lens in location and compatible annex of camera lens and fuselage sidelong in the Figure of description, also availablely in the practical application slide the location and axially insert the bind mode of multiple special lens such as positioning of rotating and compatible annex of camera lens and fuselage along camera lens along radially perpendicular insertion of camera lens, the mode difference, principle is identical.Design like this, just can expand the usable range of the single anti-digital camera of class greatly, utilize existing camera lens resource better.

Claims

1. the single anti-digital camera of the class of a replaceable and compatible lens, mainly form by the compatible annex of fuselage, special lens and camera lens, it is characterized in that: the flange-interface that cooperates special lens and the compatible annex of camera lens is arranged on the described fuselage, and the compatible annex of special lens and camera lens can be assemblied on the fuselage respectively.

2. digital camera according to claim 1 is characterized in that: fuselage is a flange focal distance less than 35 millimeters short flange focal distance fuselage.

3. digital camera according to claim 2 is characterized in that: the proofing dust and protecting heavy curtain that the photosensitive imaging element that opens and closes with the camera lens loading and unloading is arranged in the fuselage.

4. digital camera according to claim 1 is characterized in that: special lens is the flange focal distance short flange focal distance camera lens identical with fuselage, and the camera lens rear side has the flange-interface that matches with fuselage.

5. digital camera according to claim 1 is characterized in that: its front side of the compatible annex of camera lens is the compatible lens flange-interface, the flange-interface of rear side for matching with fuselage.