CN2849752Y - Pinhole imaging device - Google Patents
Pinhole imaging device Download PDFInfo
- Publication number
- CN2849752Y CN2849752Y CN200520105191.4U CN200520105191U CN2849752Y CN 2849752 Y CN2849752 Y CN 2849752Y CN 200520105191 U CN200520105191 U CN 200520105191U CN 2849752 Y CN2849752 Y CN 2849752Y
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- China
- Prior art keywords
- aperture diaphragm
- optical lens
- imaging device
- pin aperture
- optical
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a pinhole imaging device which comprises a pinhole aperture diaphragm which allows light rays to enter an optical system for forming images, and at least one optical lens which is combined with the pinhole aperture diaphragm. When the light rays pass through the pinhole aperture diaphragm, images which are formed from rays which enter the optical system and are emitted by faraway objects and nearby objects are totally clear; the utility model has the characteristics that the images of objects in various distances can be shot and be simultaneously clear; meanwhile, the optical lenses which are arranged at the front and the rear ends of a pinhole can effectively overcome the deficiency that ordinary pinholes have large distortion and can enable the entire photosensitive surface of a sensor unit to perform the roll of accepting the images which are formed by the utility model.
Description
Technical field
The utility model relates to a kind of imaging device, relates in particular to 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.
The utility model content
The purpose of this utility model is: 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 utility model 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.
Such principle that is based on the utility model 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 utility model 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 utility model is taked 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 the utility model imaging device imaging.
The utility model 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 design people 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 utility model 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 utility model:
Accompanying drawing 1, the utility model pinhole type imaging device embodiment 1 structural representation;
Accompanying drawing 2, the utility model pinhole type imaging device embodiment 2 structural representations;
Accompanying drawing 3, the utility model are equipped with the handset structure synoptic diagram of pinhole type imaging device;
Accompanying drawing 4, the utility model 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, the utility model aperture.
Embodiment
Embodiment 1, is a biplate optical lens pinhole type imaging device as shown in Figure 1, and the front end of body 5 has the pin hole 4 that a diameter is 0.8mm, and the degree of depth of pin hole 4 is 2mm; Expand to a large diameter lens barrel 51 in the rear end of pin hole 4, expand to the accommodation space 52 of a large diameter photoelectric conversion sensor 1 in lens barrel 51 rear ends again; Optical lens 3,2 is successively by embedding behind the body in the lens barrel 51; Photoelectric conversion sensor 1 is installed in the accommodation space 52; Body 5 is the one-body molded making of light-proof material, forms to block the shading wall that enters with UV light from above-mentioned pin hole.
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 embodiment of the present utility model; but design concept of the present utility model is not limited thereto; the utility model need can be applicable to the product/equipment or the instrument of optical imagery effect; allly utilize this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (9)
1, a kind of 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 the optical lens that cooperates with above-mentioned pin aperture diaphragm of a slice;
The shading wall extends an optical lens fixed mount.
2, according to the described pinhole type imaging device of claim 1, 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 the described pinhole type imaging device of claim 1, 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 the described pinhole type imaging device of claim 1, 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 pinhole type imaging device 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, according to the described pinhole type imaging device of claim 5, it is characterized in that: also comprise: a photoelectric conversion sensor can be CCD electro-optical imaging sensors or CMOS electro-optical imaging sensors.
7, according to the described pinhole type imaging device of claim 6, it 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 pinhole type imaging devices, 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 pinhole type imaging devices, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520105191.4U CN2849752Y (en) | 2005-08-23 | 2005-08-23 | Pinhole imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520105191.4U CN2849752Y (en) | 2005-08-23 | 2005-08-23 | Pinhole imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849752Y true CN2849752Y (en) | 2006-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520105191.4U Expired - Lifetime CN2849752Y (en) | 2005-08-23 | 2005-08-23 | Pinhole imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849752Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104063704A (en) * | 2014-04-04 | 2014-09-24 | 深圳印象认知技术有限公司 | Image collection device, liquid crystal terminal device and fingerprint and image collection method |
| CN109166429A (en) * | 2018-10-18 | 2019-01-08 | 安徽理工大学 | A kind of optical physics teaching optics demonstration teaching aid |
-
2005
- 2005-08-23 CN CN200520105191.4U patent/CN2849752Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104063704A (en) * | 2014-04-04 | 2014-09-24 | 深圳印象认知技术有限公司 | Image collection device, liquid crystal terminal device and fingerprint and image collection method |
| CN104063704B (en) * | 2014-04-04 | 2020-11-10 | 深圳印象认知技术有限公司 | Image acquisition device, liquid crystal terminal equipment, fingerprint and image acquisition method |
| CN109166429A (en) * | 2018-10-18 | 2019-01-08 | 安徽理工大学 | A kind of optical physics teaching optics demonstration teaching aid |
| CN109166429B (en) * | 2018-10-18 | 2020-07-28 | 安徽理工大学 | Optics demonstration teaching aid for optics physics teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150823 Granted publication date: 20061220 |
|
| EXPY | Termination of patent right or utility model |