CN2462426Y

CN2462426Y - Digital image picking up device

Info

Publication number: CN2462426Y
Application number: CN 00260620
Authority: CN
Inventors: 张豪裕; 陈升晖; 倪扬; 谢俊兴
Original assignee: Yilin Science & Technology Co
Current assignee: Yilin Science &. Technology Co., Ltd.
Priority date: 2000-11-27
Filing date: 2000-11-27
Publication date: 2001-11-28
Anticipated expiration: 2010-11-27

Abstract

The utility model relates to a digital image picking up device, which is matched with a nondigit camera. The utility model comprises an optical conversion lens set, an image sensing device, a control device and a memory device, wherein, the optical conversion lens set focuses and images the optical image data which passes through the optical lens set of the nondigit camera and an aperture; the image sensing device converts the optical image data of the optical conversion lens set into digital electrical signal output; the control device controls the exposure time of the image sensing device and the digital electrical signal output of the image sensing device; the memory device records the digital electrical signal coming from the image sensing device. The utility model can make an ordinary camera capable of picking up digital image data.

Description

Digital image pick-up

The utility model relates to a kind of camera, especially relates to a kind of digital image pick-up that is used in acquisition of digital video data on the ordinary camera.

As shown in Figures 1 and 2, general camera 1 is egative film 2 to be installed on housing 10 cover in 16 confined spaces that surround with the back of the body, offers a perforation 18 in the housing front side, covers this perforation 18 by multi-disc shielding plate 180.Take pictures and open above-mentioned shielding plate 180, the optical image data that capture is passed camera lens 14, be imaged on egative film 2 places that are installed in the camera, and after a schedule time, close shielding plate 180, stop exposure by pressing button 12 actuating trippers.Wherein, shielding plate 180 openable light hole size dimensions promptly are apertures, and shielding plate 180 just is called shutter from being opened into the time interval of closing.In the process of taking pictures, the user only needs 14 pairs of scopes that are about to pick-up image of camera lens, focus, selected aperture and shutter, even for ease of operation, many intelligent cameras also can be in aperture and shutter two options, set aperture priority (or shutter priority), photography only needs the preferential operating conditions of setting of decision, another parameter is decided in its sole discretion after by the camera photometry, can significantly reduce the chance of the failure of taking pictures thus, also have in addition the user-friendly camera of two options by sensing apparatus decision in the camera, thus general camera become any per capita can maneuverable daily life tools.

On the other hand, arrive along with digital times, transfer image data to digital information, also non-of the advantage in transmission, processing, storage process has that the general camera of simple writing function can reach.But digital camera is being not compatible completely with general camera aspect the operation selection, especially providing aspect the abilities such as editor, also cause the situation of button increase, complicated operation, thus, for the ordinary camera end user who does not know modern science and technology well, will make it forbidding, smoothly the power of Applied Digital capture to digital camera.

The purpose of this utility model is to provide the digital image pick-up general camera application of a kind of confession, that can be used for the acquisition of digital video data.

For achieving the above object, the utility model provides a kind of digital image pick-up, is to match with the nonnumeric camera with one group of optical lens group, a mechanical shutter mechanism and aperture; It is characterized in that: this digital image pick-up includes:

One will pass the optical transition lens group of the optical image data focal imaging of this nonnumeric camera optical lens group and this aperture;

The one optical image data with this optical transition lens group is converted to the Image sensor apparatus of digital electric signal output;

The control device of the output of the time shutter of one this Image sensor apparatus of control and the digital electric signal of this Image sensor apparatus;

One record is from the memory storage of the digital electric signal of this Image sensor apparatus.

Described digital image pick-up is characterized in that: this Image sensor apparatus comprises that one is converted to the array numeral sensing element of digital electric signal output with imaging optical image data thereon.

Described digital image pick-up, it is characterized in that: this Image sensor apparatus comprises an an array analog sensing element and an analog/digital conversion element, the optical image data that this array analog sensing element will be imaged on this array analog sensing element is converted to analog electrical signal, and exports this analog/digital conversion element to and be converted to digital electric signal output.

Described digital image pick-up, it is characterized in that: this Image sensor apparatus comprises the sensing element with most structure cells, at least one structure cell in this structure cell is to determine that for differentiating whether this shutter is in opening, and export this control device of a signal triggering, and reach a predetermined standard time in the suffered exposure of this sensing element, stop the exposure of this sensing element by this control loading amount control.

Described digital image pick-up is characterized in that: this optical transition lens group comprises a plano-convex lens.

Described digital image pick-up is characterized in that: this digital image pick-up also comprises a digital output interface, in order to the output electric signal of output from this Image sensor apparatus.

After having adopted said structure, digital image pick-up of the present utility model, its digitized video sensing apparatus has replaced the egative film and the back of the body lid of general camera, the optical image that makes acquisition is via the original optical lens group of general camera, image in this digitized video sensing apparatus place, thereby can make general camera can be used to the acquisition of digital video data.

Below by Cui embodiment and accompanying drawing digital image pick-up of the present utility model is elaborated.

Fig. 1 is the stereographic map of general camera.

Fig. 2 is the three-dimensional exploded view of the general camera of Fig. 1.

Fig. 3 uses the perspective exploded view of the utility model than Cui embodiment camera.

Fig. 4 is the framework calcspar of the utility model than Cui embodiment.

Fig. 5 is the optical schematic diagram of general camera imaging.

Fig. 6 is the optical schematic diagram of the utility model than Cui embodiment imaging.

Fig. 7 is the operation workflow figure of the utility model than Cui embodiment.

Fig. 8 is the framework calcspar of the utility model second than Cui embodiment.

For ease of explanation, as shown in Figure 3, this digital image pick-up 4 than Cui embodiment is in order to cooperate the general camera 3 of 35 centimetres of camera lenses 34 of tool.And as shown in Figure 4, digital image pick-up 4 comprises lens 40, Image sensor apparatus 42, control device 44, memory storage 46, and has a digital signal output interface 48.Wherein, but this Image sensor apparatus 42 is that (CMOS ComplementMetal-Oxide-Silicon) is example for complementary metal oxide silicon with a sensitization in the present embodiment.

Because the length and wide 24 centimetres of 36 cm x that are respectively of the every lattice of used plate dimension in the general camera, and its very thin thickness, if directly replace said negative film with an Image Sensor such as sensitization CMOS or charge coupled device (CCD) etc., then be subject to this class component and itself have certain thickness, also need cooperate relevant control circuit, therefore can not be placed in originally general camera puts in the space of egative film, add that the Image Sensor size is big more, making acceptance rate is just showing and is reducing, therefore price selects for use size of component will have a strong impact on manufacturing cost along with significantly improving.

As shown in Figure 5, when simple optical lens 34 imagings by this general camera 3, the optical image of then wanting photo-object 9 will focus on and become a real image at egative film 2 places, so that egative film 2 is exposed, and to be that example is when replacing this egative film 2 with the sensitization CMOS 42 of applicant's manufacturing, because of the length and width of this sensitization CMOS 42 are respectively 4.2 centimetres of 5.6 cm x, in order not change the optical lens group 34 and the aperture of general camera, under the condition of shutter structure, can obtain complete image data with general egative film 2 same range as, the solid angle that this sensitization CMOS 42 is contained needs big or small consistent with original negative 2 at least, and must be set at than original negative 2 more near the position of camera lens 34, but optical image does not focus in this position, so as shown in Figure 6, by the lens imaging formula as can be known, when in the light path of optical lens group 34, adding a slice plano-convex lens 40, calculate final imaging mode again, can be with the former real image of egative film 2 positions that should be imaged on as the virtual object that should increase lens 40 newly, borrow this known virtual object and the object distance of lens 40, and the image distance of sensitization CMOS 42 and these lens 40, just how many focal lengths that can try to achieve required adding lens at an easy rate is, so, the then former real image that should be imaged on original negative 2 positions just can successfully focus on sensitization CMOS 42 places and forms a real image.

With reference to figure 3, Fig. 6 and Fig. 7, in step 50, shutter release button 32 is pressed, shielding plate 380 is opened according to aperture settings originally in the lump, and the optical image data that then will capture promptly is imaged on sensitization CMOS 42 places via optical lens group 34 and convex lens 40.Because sensitization CMOS 42 is made of the most structure cells (figure does not show) such as array configurations, be as detecting device in this example with in these structure cells at least one, be used in step 52, differentiating and determine whether tripper is positioned at opening, if determining tripper opens, then export a signal triggering control device 44, when step 54, control device 44 is the current potentials that continue this detecting device of monitoring, when this current potential reaches a preassigned, mean that promptly the suffered exposure of this sensing element is enough, and, reduce the generation of overexposure whereby by the exposure of these control device 44 controls by this sensing element 42.Certainly, as the person skilled in the art was to understand, this structure cell of sentencing sensing element guaranteed just that as detecting device exposure is suitable a kind of embodiment, and such as installing a similar fashion such as optical detector independently additional, also all feasible.

When step 56, control device 44 orders about this sensitization CMOS 42 the optical image data that is obtained is converted to digital image data output, and is stored in memory storage 46 places.

Finally, via a digital output interface 48, this digital signal is exported to treating apparatus or the storage device that continues.

In the previous embodiment, though sensing element 42 is that the sensitization CMOS that exports with a numeral is an example, but as shown in Figure 8, person skilled in the art's door also can easily be known by inference, sensing element 42 herein also can be exported charge coupled device (CCD) 420 collocation one analog/digital converter 422 of analog electrical signal instead, the optical image data on the CCD420 of will being imaged on earlier is converted to analog electrical signal and exports A/D converter 422 to, is converted to that digital electric signal is stored in memory storage 46 or through digital output interface 48 outputs again.

Claims

1. a digital image pick-up is to match with the nonnumeric camera with one group of optical lens group, a mechanical shutter mechanism and aperture; It is characterized in that: this digital image pick-up includes:

2. digital image pick-up as claimed in claim 1 is characterized in that: this Image sensor apparatus comprises that one is converted to the array numeral sensing element of digital electric signal output with imaging optical image data thereon.

3. digital image pick-up as claimed in claim 1, it is characterized in that: this Image sensor apparatus comprises an an array analog sensing element and an analog/digital conversion element, the optical image data that this array analog sensing element will be imaged on this array analog sensing element is converted to analog electrical signal, and exports this analog/digital conversion element to and be converted to digital electric signal output.

4. digital image pick-up as claimed in claim 1, it is characterized in that: this Image sensor apparatus comprises the sensing element with most structure cells, at least one structure cell in this structure cell is to determine that for differentiating whether this shutter is in opening, and export this control device of a signal triggering, and reach a predetermined standard time in the suffered exposure of this sensing element, stop the exposure of this sensing element by this control loading amount control.

5. digital image pick-up as claimed in claim 1 is characterized in that: this optical transition lens group comprises a plano-convex lens.

6. digital image pick-up as claimed in claim 1 is characterized in that: this digital image pick-up also comprises a digital output interface, in order to the output electric signal of output from this Image sensor apparatus.