CN101086559A - Pinhole type imaging device - Google Patents
Pinhole type imaging device Download PDFInfo
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- CN101086559A CN101086559A CN 200510096735 CN200510096735A CN101086559A CN 101086559 A CN101086559 A CN 101086559A CN 200510096735 CN200510096735 CN 200510096735 CN 200510096735 A CN200510096735 A CN 200510096735A CN 101086559 A CN101086559 A CN 101086559A
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- aperture diaphragm
- optical lens
- optical
- imaging device
- slice
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Abstract
The pin-hole imaging device comprises a pin-hole aperture diaphragm optical lens. When the light goes through the aperture diaphragm, object from the distant and close send out clear image from the beam, with clear feature for images shot from various distances, with the front and rear rend of the pin hole of the optical lens being able to get rid of the deficiency of common pin hole getting bigger, allowing the overall light sensitive area being able to receive the imaging device.
Description
Technical field
The present invention relates to a kind of imaging device: a kind of imaging device of pin camera lens.
Background technology
At present, usually camera head adopts the optical mirror slip system imaging more, only takes pictures on fixing shooting distance, just can obtain on this shooting distance and near the imaging results clearly of object.That is to say, during subject on taking fixed range, only otherwise the object on this distance just can not obtain its distinct image.All obtain imaging results clearly if reach the object of taking different distance, can only be by some other mechanical hook-up, such as the lens systems of automatic focusing mechanism, manual focusing function.
Behind above-mentioned mechanical hook-up, also can only obtain picture rich in detail to the establishing shot distance of jobbie.Can not obtain all effects clearly of relative near objects and relative distant objects imaging results simultaneously.
The imaging device of automatic focusing and manual focusing structure of optical means, because the special physical construction of focusing effect and focusing action is arranged, such as the driving lever of Step Motor, VCM Actuator etc., manual focusing etc., so its complex structure, size is bigger than normal, cost is higher.In recent years, installation camera head demand is general on the portable electric appts, because portable electric appts is subjected to the restriction of its volume, to miniaturization, the higher requirement of simplification proposition of imaging device.
Summary of the invention
The objective of the invention is to: aim to provide a kind of camera distance degree of freedom that adopts non-automatic focusing and manual focusing optics mechanism to realize increasing the object of taking pictures, make subject all clear in the imaging results of different shooting distances, simultaneously can obtain high contrast features, the imaging device of the imaging that the optical distortion amount is little.
Another purpose of the present invention is: provide a kind of simple in structure, can miniaturization, be applicable to the imaging device that information terminals such as small-sized image pickup equipment, portable phone (mobile phone), portable computer and servicing unit thereof are installed and used.
The present invention is based on that such principle realizes: pin-hole imaging is that Ancient Times in China Mo-tse one is invented greatly, by its easy adaptability, in today of development in Hi-Tech, still has great vitality.The present invention is to be the pinhole type imaging device of principle design with the pin-hole imaging, comprising:
One allows light to enter the pin aperture diaphragm that optical system constitutes imaging, and its pinhole diameter is of a size of 0.5mm～0.9mm;
Have and block the shading wall that enters with UV light from above-mentioned pin hole;
At least state the optical lens that the pin aperture diaphragm cooperates more than a slice;
The shading wall extends an optical lens fixed mount.
Described optical lens is a slice, is arranged on the one side of above-mentioned pin aperture diaphragm back to the subject direction.
Described optical lens is two, is set in sequence in the one side of above-mentioned pin aperture diaphragm back to the subject direction.
Described optical lens is two, and a slice is arranged on the one side of above-mentioned pin aperture diaphragm back to the subject direction, and a slice is arranged on the one side of pin aperture diaphragm in the face of the subject direction.
A kind of pin lens system:
One pinhole type imaging device is installed on the part of housing, is comprised;
One allows light to enter the pin aperture diaphragm of optical system imaging, and its pinhole diameter is of a size of 0.5mm～0.9mm;
Have and block the shading wall that enters with UV light from above-mentioned pin hole;
At least the optical lens that cooperates with above-mentioned pin aperture diaphragm of a slice;
One fixes and installs the Mirror frame structure of optical mirror slip.
The picture of the imaging device of above-mentioned pin camera lens is transformed into electronic image signal by photoelectric commutator (such as CCD electro-optical imaging sensors or CMOS electro-optical imaging sensors or the like).
The present invention takes said structure, and when light passed through the diaphragm of pin aperture diaphragm, the image formation by rays that enters optical system that image formation by rays that enters optical system that distant objects is sent and near objects are sent was all clear; Image with the subject that can make different distance simultaneously is characteristic clearly all; Simultaneously, the optical lens that is arranged on the pin hole front and back end can effectively overcome the big deficiency of common pin hole distortion, makes the whole photosensitive area of sensor unit play the effect of accepting imaging device imaging of the present invention.
The present invention is not owing to need automatic focusing system mechanism and manual focusing system mechanism, make have simple in structure, compact size, long service life, advantage that cost is low, be suitable for the imaging device that information terminals such as small-sized image pickup equipment, portable phone (mobile phone), portable computer and servicing unit thereof are installed and used.
Aperture for the pin hole aperture diaphragm of obtaining optimum efficiency, the inventor is on the basis of theory analysis and research, make a series of pins and directly selected experiment, diameter is respectively: 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm 1.0mm, the degree of depth of pin hole is set to 1.0mm～3.0mm, indoor brightness is set to 100 Luxs, observes brightness, distortion, the sharpness of the image of taking via corresponding pin hole, obtains experimental result as shown in Figure 5:
The opening diameter of pin hole is set to 0.7mm when following, finds the clear picture that obtains, still, but when distortion occurring, obtains causing because of deficiency in light quantity the image of luminance shortage;
The opening diameter of pin hole is arranged on 0.9mm when above, and then image blurring, its reason is that opening diameter is excessive, the cause of astigmatism in pin hole;
The opening diameter of pin hole is arranged under the situation about 0.8mm, because the image that obtains can obtain sufficient light quantity, so can obtain not having the image of distortion.
By above-mentioned analysis experiment as can be known: pinhole diameter of the present invention is 0.7～.09mm, the image optimum that obtains under the situation of 0.8mm.
Reaching embodiment in conjunction with the accompanying drawings is further described the present invention:
Accompanying drawing 1, pinhole type imaging device embodiment 1 structural representation of the present invention;
Accompanying drawing 2, pinhole type imaging device embodiment 2 structural representations of the present invention;
Accompanying drawing 3, the present invention are equipped with the handset structure synoptic diagram of pinhole type imaging device;
Accompanying drawing 4, the present invention are equipped with the cellular type imaging device part-structure synoptic diagram of the mobile phone of pinhole type imaging device;
Experimental result one hurdle table is selected in accompanying drawing 5, aperture of the present invention.
Embodiment
During use, the light that sends when the subject in the field angle scope incides optical lens 3 by pin hole 4 (reference object and background), through optical lens 3,2 optically focused, is imaged on the photoelectric conversion sensor 1.Because the diameter dimension of pin hole unit is 0.8mm,, can allow be imaged on clearly on the photoelectric conversion sensor 1 simultaneously apart from very near object of this imaging device and the object far apart from this imaging device according to the pin-hole imaging principle.Solved other imaging devices can only at the object of a certain establishing shot distance can imaging problem clearly.
Mobile phone has the front that display unit 11, operating unit 12, pin hole unit 15 are arranged on housing 10.
On the main substrate 17 of mobile phone, be equipped with and store the view data that from the picture signal that ccd image sensor 18 is taken, generates accordingly, perhaps transform to term and make view data be presented at signal processing circuit on the display unit 11.
In order effectively to utilize the whole area of sensor unit 182,15 backs embed one-sided aspheric surface convex lens 16 optically focused in the pin hole unit, and these convex lens 16 can be material such as plastics, hard glass.
Be arranged on the glass part 181 of ccd image sensor 18, use cover glass according to light (ultraviolet amount) variable color.When avoiding using simple glass, produce by the phenomenon of burning (becoming dark brown) from the effect of the light of convex lens 16 incidents, not only can reduce the quality of image, but also easily shorten the serviceable life of ccd image sensor 18.
During use, the video that pin hole unit 15 through having on the mobile phone is taken into (reference object and background) light incides convex lens 16, incides sensor unit 182 with these convex lens 16 at the glass part 181 via the ccd image sensor 18 on the main substrate 17 that is set at mobile phone under the no focus condition.By signal processing circuit, image can clear demonstration on display unit 11, and can be stored in the chip for cell phone.
Because pin hole unit 15 be the pinhole aperture diaphragm of diameter 0.8mm, can allow be imaged on clearly on the sensor 18 apart from very near object of mobile phone and the object while far apart from mobile phone, thus can clear demonstration on display unit 11.
The foregoing description; only for implementing embodiments of the invention; but design concept of the present invention is not limited thereto; the present invention need can be applicable to the product/equipment or the instrument of optical imagery effect; allly utilize this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (10)
1. pinhole type imaging device is characterized in that: comprising:
One allows light to enter the pin aperture diaphragm that optical system constitutes imaging, and its pinhole diameter is of a size of 0.5mm～0.9mm;
Have and block the shading wall that enters with UV light from above-mentioned pin hole;
At least state the optical lens that the pin aperture diaphragm cooperates more than a slice;
The shading wall extends an optical lens fixed mount.
2, according to right 1 described pinhole type imaging device, it is characterized in that: described optical lens is a slice, is arranged on the one side of above-mentioned pin aperture diaphragm back to the subject direction, and is fixed on the optical lens fixed mount.
3, according to right 1 described pinhole type imaging device, it is characterized in that: described optical lens is two, is set in sequence in the one side of above-mentioned pin aperture diaphragm back to the subject direction, and is fixed on the optical lens fixed mount.
4, according to right 1 described pinhole type imaging device, it is characterized in that: described optical lens is two, a slice is arranged on the one side of above-mentioned pin aperture diaphragm back to the subject direction, a slice is arranged on the one side of pin aperture diaphragm in the face of the subject direction, and is fixed on the optical lens fixed mount.
5, a kind of pin lens system is characterized in that:
One pinhole type imaging device is installed on the part of housing, is comprised;
One allows light to enter the pin aperture diaphragm of optical system imaging, and its pinhole diameter is of a size of 0.5mm～0.9mm;
Have and block the shading wall that enters with UV light from above-mentioned pin hole;
At least the optical lens that cooperates with above-mentioned pin aperture diaphragm of a slice;
One fixes and installs the Mirror frame structure of optical mirror slip.
6, a kind of cellular type lens system according to claim 5 is characterized in that: also comprise: a photoelectric conversion sensor can be CCD electro-optical imaging sensors or CMOS electro-optical imaging sensors.
7, a kind of cellular type lens system according to claim 6 is characterized in that: also comprise: having switching and be taken into the switching device shifter of speed based on above-mentioned photoelectric commutator image, can be CCD electro-optical imaging sensors or CMOS electro-optical imaging sensors.
8, according to claim 5 or 6 described cellular type lens systems, it is characterized in that: described optical lens is two, be set in sequence in above-mentioned pin aperture diaphragm and photoelectric device between the position, be fixed on the Mirror frame structure; Or a slice be arranged on above-mentioned pin aperture diaphragm and photoelectric device between the position, a slice is arranged on the front end of subject pointing needle cellular type aperture diaphragm, is separately fixed on the Mirror frame structure.
9, according to claim 5 or 6 described cellular type lens systems, it is characterized in that: described optical lens is a slice, be arranged on above-mentioned pin aperture diaphragm and photoelectric device between the position.
10, according to claim 5 or 6 described a kind of cellular type lens systems, it is characterized in that: described information terminal and the servicing units thereof such as small-sized image pickup equipment, portable phone, portable computer of being applicable to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510096735 CN101086559A (en) | 2005-08-23 | 2005-08-23 | Pinhole type imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510096735 CN101086559A (en) | 2005-08-23 | 2005-08-23 | Pinhole type imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101086559A true CN101086559A (en) | 2007-12-12 |
Family
ID=38937614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510096735 Pending CN101086559A (en) | 2005-08-23 | 2005-08-23 | Pinhole type imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101086559A (en) |
-
2005
- 2005-08-23 CN CN 200510096735 patent/CN101086559A/en active Pending
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