CN105300418B - A kind of optical sensor and the detection device with the optical sensor - Google Patents
A kind of optical sensor and the detection device with the optical sensor Download PDFInfo
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- CN105300418B CN105300418B CN201510718511.1A CN201510718511A CN105300418B CN 105300418 B CN105300418 B CN 105300418B CN 201510718511 A CN201510718511 A CN 201510718511A CN 105300418 B CN105300418 B CN 105300418B
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- light
- optical sensor
- eyeglass
- imaging lens
- piece
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Abstract
The present invention provides a kind of optical sensor, is related to testing techniques of equipment field, including box body；Imaging lens；Protect eyeglass；Angle adjusting piece, setting is in the opening, the angle for adjusting the protection eyeglass and the light for coming from imaging lens.Angle adjusting piece is arranged between protection eyeglass and box body in optical sensor provided by the invention; by adjusting angle adjusting piece; adjust the angle of the light receiving surface and the light for coming from imaging lens of the protection eyeglass; make the light for coming from imaging lens as possible can be vertical with the protection light receiving surface of eyeglass; reduce refraction of the protection eyeglass to light when light being made to pass through protection eyeglass; the dispersion for the light that wavelength light is generated by different refractivity difference is also reduced simultaneously; keep luminous point distribution close, improves imaging effect.
Description
Technical field
The present invention relates to testing techniques of equipment fields, and in particular to a kind of optical sensor and with the optical sensor
Detection device.
Background technology
Direction with measuring instrument towards precise treatment, high precision int is developed, and optical technology is in present scientific measurement instrument
Increasingly important role is played in device.CCD (CMOS) optical sensors are made using the semi-conducting material of high sensitivity, can handle
Light is transformed into charge, then is converted into digital signal by analog-digital converter chip.CCD (CMOS) optical sensor generally comprises
Sensitive piece 1 and imaging lens 2, wherein imaging lens 2 are located at the front end of sensitive piece 1, and sensitive piece 1 is arranged in a box body, box
Body front end is provided with opening, enters in box body from opening after the imaged camera lens of light 2 and is mapped on sensitive piece 1, to excite
Light sensitive diode on sensitive piece is usually being opened to ensure the leakproofness (dust-proof) of tray interior and the safety of sensitive piece
Protection eyeglass is there is provision of at mouthful.
In the fields such as 3D scannings, position detection, checking matter camera plane, imaging lens, protection eyeglass 5 and sensitive piece
1 arranges in the manner shown in fig. 1, when checking matter camera plane and the optical axis out of plumb of sensitive piece 1 and imaging lens 2, from
There are certain angle, light can occur the light that imaging lens 2 come out when by protecting eyeglass 5 with the normal of eyeglass 5 is protected
Refraction, at this point, light path is as shown in Fig. 2, and due to different wave length (mainly three primary colors-feux rouges R, green light G, blue light B) in white light
Refractive index of the light in protecting eyeglass it is different, therefore, three coloured light will be incident upon the different location of sensitive piece 1 after refraction
On, i.e., the light that sensitive piece 1 receives can disperse, this image for causing CCD (CMOS) sensor to take generates aberration, makes
Unclear at being imaged, image quality reduces.
Invention content
Therefore, the technical problem to be solved in the present invention be checking matter camera plane in the prior art, sensitive piece at
As camera lens optical axis out of plumb when optical sensor imaging effect difference defect.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of optical sensor, including
Box body, interior side are provided with sensitive piece, and the other side is provided with opening, and the position of the opening corresponds to the sense
Light part；
Imaging lens are located at close to the side of the opening, the light for focusing the reflection of checking matter camera plane；
Eyeglass, sealing is protected over said opening, to be projected for receiving the light for coming from imaging lens, and by light
On the sensitive piece；
Angle adjusting piece, setting is in the opening, for adjusting the protection eyeglass and coming from the light of imaging lens
The angle of line.
Preferably, the angle adjusting piece is bellows, and one end of the bellows is tightly connected over said opening, separately
One end is tightly connected the protection eyeglass.
Preferably, the bellows is made of stainless steel material.
Preferably, the bending range of the bellows is 0 ° -90 °.
Preferably, protection eyeglass is the sheet glass of plane, and the thickness of the protection eyeglass is 0.1mm to 10mm.
Preferably, the sensitive piece is CCD sensitive pieces or cmos sensor sensitive piece.
The present invention also provides a kind of detection device, there is light source, light for irradiating checking matter camera plane at least one
It learns sensor and controller, the controller is connect with optical sensor, the image for receiving sensitive piece acquisition is described
Optical sensor is above-mentioned optical sensor.
Preferably, the light source is LED light.
Technical solution of the present invention has the following advantages that：
1. angle adjusting piece is arranged between protection eyeglass and box body in optical sensor provided in an embodiment of the present invention, lead to
Angle adjusting piece is overregulated, the angle of the light receiving surface and the light for coming from imaging lens of the protection eyeglass is adjusted, makes to come
As possible can be vertical with the protection light receiving surface of eyeglass from the light in imaging lens, reduce when light being made to pass through protection eyeglass and protects
Refraction of the protecting lens to light, while the dispersion for the light that different light are generated by different refractivity is also reduced, make luminous point point
Cloth is close, improves imaging effect.
2. optical sensor provided in an embodiment of the present invention, angle adjusting piece is bellows, and bellows has elasticity, passes through
Bellows is bent, has the function that adjust protection lens angle, bellows structure is simple, of low cost, can make larger
Flexural deformation.
3. optical sensor provided in an embodiment of the present invention, stainless steel material is not easy to get rusty and has good elasticity
Deformability can restore to the original state after deformation, and endurance enables bellows not occur in the case of multiple bending
Metal fatigue and damage.
4. optical sensor provided in an embodiment of the present invention, protection eyeglass is set as the glass of plane, protects the light of eyeglass
Receiving plane and the light opposite with light receiving surface send out that face is parallel, in this way, light with perpendicular to the direction of light receiving surface from light connect
Receipts face is injected inside protection eyeglass, then sends out face injection protection eyeglass from light with the direction for sending out face perpendicular to light, is further subtracted
Refraction of the small protection eyeglass to light, improves imaging effect.The thickness for protecting eyeglass is arranged can play in 0.1mm to 10mm
Protective effect to sensitive piece, meanwhile, make light by protecting the strength retrogression after eyeglass little, photoreceptor is enable to obtain foot
Enough light ensures image quality.
5. detection device provided in an embodiment of the present invention, clear so as to obtain due to having above-mentioned optical sensor
Detection image, accurate detection information is provided, either be used for PCB detection in, or for hospital detection in, all have compared with
High value.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is arrangement of the optical sensor in checking matter camera plane, sensitive piece and imaging lens in the prior art
Schematic diagram；
Fig. 2 is light path schematic diagram of the three primary colors light by optical sensor in the prior art；
Fig. 3 is the arrangement schematic diagram of main element in the structure of optical sensor provided in the embodiment of the present invention 1；
Fig. 4 is light path schematic diagram of the three primary colors light by optical sensor shown in Fig. 3；
Fig. 5 is the Imaging Simulation figure of optical sensor shown in FIG. 1；
Fig. 6 is the Imaging Simulation figure of optical sensor shown in Fig. 3；
Reference sign：
1- sensitive pieces；2- imaging lens；3- checking matters；4- box bodys；41- is open；5- protects eyeglass；6- angle adjusting pieces；
R- feux rouges；G- green lights；B- blue lights.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of optical sensors, as shown in figure 4, including
Box body 4, interior side are provided with sensitive piece 1, and the other side is provided with opening 41, and the position of the opening corresponds to institute
State sensitive piece；
Imaging lens 2 are located at close to the side of the opening, the light for focusing the reflection of checking matter camera plane；
Eyeglass 5 is protected, is sealed in the opening 41, is thrown for receiving the light for coming from imaging lens 2, and by light
It is mapped on the sensitive piece 1；
Angle adjusting piece 6, setting is at the opening 41, for adjusting the protection eyeglass 5 and coming from imaging lens 2
Light angle.
Angle adjusting piece 6 is arranged between protection eyeglass 5 and box body 4, passes through adjustment angle for the optical sensor of the present embodiment
Regulating part 6 is spent, the angle of the light receiving surface and the light for coming from imaging lens 2 of the protection eyeglass 5 is adjusted, makes to come from into
As camera lens 2 light as possible can with protection the light receiving surface of eyeglass 5 it is vertical, make light pass through protection eyeglass 5 when reduce protection
Refraction of the eyeglass 5 to light, while the dispersion for the light that wavelength light is generated by different refractivity difference is also reduced, make luminous point
Distribution is close, improves imaging effect.
Specifically, the angle adjusting piece is bellows, and the angle adjusting piece is bellows, one end of the bellows
It is sealedly connected in the opening 41, the other end is tightly connected the protection eyeglass 5.
Bellows has elasticity, by bending bellows, reaches and adjusts protection eyeglass 5 and the angle of the sensitive piece 1
Effect, bellows structure is simple, of low cost, can make larger flexural deformation.
As the embodiment of deformation, angle adjusting piece 6 can also be that other can make certain elastic deformation ability
Pipe, such as rubber tube or flexible optical fiber.
Further, the bending range of the bellows is 0 ° -90 °.
The protection eyeglass 5 can be made by being bent the bellows, therefore regardless of being detected object location, capable of making and coming
It is vertical with the protection light receiving surface of eyeglass 5 from the light of imaging lens 2, so that the optical sensor of the present embodiment is suitable for each
Kind occasion, improves adaptability.
Further, protection eyeglass 5 is the sheet glass of plane, and the thickness of the protection eyeglass 5 is 0.1mm to 10mm, such as
0.1mm, 0.5mm, 1mm, 2mm, 5mm, 10mm etc..
Protection eyeglass 5 is set as the glass of plane, protects the light receiving surface and the light opposite with light receiving surface hair of eyeglass 5
Appear parallel, in this way, light with perpendicular to the direction of light receiving surface from light receiving surface inject inside protection eyeglass 5, then with vertical
Send out the direction in face in light and send out face from light and project protection eyeglass 5, further decrease refraction of the protection eyeglass to light, improve at
As effect.The protective effect to sensitive piece can be played in 0.1mm to 10mm by protecting the thickness of eyeglass 5 to be arranged, meanwhile, make light
By protecting the strength retrogression after eyeglass 5 little, so that sensitive piece is obtained enough light, ensure image quality.
The sensitive piece is CCD sensitive pieces, can also be CMOS sensitive pieces.
It is worth noting that the size of the sensitive piece is required to receive reflects imaged camera lens 2 from checking matter 3
All light assembled.
Embodiment 2
The present embodiment provides a kind of detection device, there is light source, light for irradiating checking matter camera plane at least one
It learns sensor and controller, the controller is connect with optical sensor, the image for receiving sensitive piece acquisition is described
Optical sensor is optical sensor described in embodiment 1.Controller can be used for the flexural deformation of control angle adjusting piece 6
Amount is to adjust the angle come between the light of imaging lens 2 and the light receiving surface for protecting eyeglass 5.
Light source, which is arranged, to provide enough light, also, the inspection of the present embodiment in dark environment for imaging lens 2
Measurement equipment has optical sensor as described in Example 1, thus has the advantages that described in embodiment 1, can obtain clearly
Detection image provides accurate detection information, is either used in PCB detections, or in hospital's detection, all having higher
Value.
Specifically, the light source is LED light.
Effect example
The optical sensor in optical sensor shown in FIG. 1 and embodiment 1 is simulated using ZMAX simulation softwards
Analysis.Sunykatuib analysis structure as shown in figs.5 and 6, is worth explanation and it is noted that length scales in Fig. 5 are 20 microns,
Length scales in Fig. 6 are 2 microns.As can be seen from Figure 6 in the optical axis of checking matter camera plane, sensitive piece and imaging lens
When out of plumb, protection eyeglass is adjusted to after vertical with the optical axis of imaging lens, the dispersion phenomenon of light will be significantly better than in Fig. 5,
Luminous point distribution is close, and imaging effect is more preferable.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of optical sensor, which is characterized in that including
Box body (4), interior side are provided with sensitive piece (1), and the other side is provided with opening (41), and the position of the opening corresponds to
The sensitive piece；
Imaging lens (2) are located at close to the side of the opening, the light for focusing the reflection of checking matter camera plane；
Eyeglass (5) is protected, is sealed on the opening (41), for receiving the light for coming from imaging lens (2), and by light
It projects on the sensitive piece (1)；
Angle adjusting piece (6), the angle for adjusting the protection eyeglass (5) and the light for coming from imaging lens (2) are described
Angle adjusting piece (6) is elastic tube, and the elastic tube is tightly connected the opening (41) and the protection eyeglass (5).
2. optical sensor according to claim 1, which is characterized in that the angle adjusting piece is bellows, the wave
One end of line pipe is sealedly connected on the opening (41), and the other end is tightly connected the protection eyeglass (5).
3. optical sensor according to claim 2, which is characterized in that the bellows is made of stainless steel material.
4. optical sensor according to claim 3, which is characterized in that the bending range of the bellows is 0 ° -90 °.
5. optical sensor according to any one of claim 1-3, which is characterized in that protection eyeglass (5) is plane
The thickness of sheet glass, the protection eyeglass (5) is 0.1mm to 10mm.
6. according to claim 1-4 any one of them optical sensors, which is characterized in that the sensitive piece is CCD sensitive pieces
Or cmos sensor sensitive piece.
7. optical sensor according to claim 5, which is characterized in that the sensitive piece is that CCD sensitive pieces or CMOS are passed
Sensor sensitive piece.
8. a kind of detection device has light source, optical sensor for irradiating checking matter camera plane at least one, and control
Device processed, the controller are connect with optical sensor, the image for receiving sensitive piece acquisition, which is characterized in that the optics
Sensor is the optical sensor described in any one of claim 1-7.
9. detection device according to claim 8, which is characterized in that the light source is LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510718511.1A CN105300418B (en) | 2015-10-28 | 2015-10-28 | A kind of optical sensor and the detection device with the optical sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510718511.1A CN105300418B (en) | 2015-10-28 | 2015-10-28 | A kind of optical sensor and the detection device with the optical sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105300418A CN105300418A (en) | 2016-02-03 |
| CN105300418B true CN105300418B (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510718511.1A Expired - Fee Related CN105300418B (en) | 2015-10-28 | 2015-10-28 | A kind of optical sensor and the detection device with the optical sensor |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598848A (en) * | 2008-06-06 | 2009-12-09 | 鸿富锦精密工业（深圳）有限公司 | Zoom optic lens |
| KR100958425B1 (en) * | 2008-09-30 | 2010-05-18 | 도시바삼성스토리지테크놀러지코리아 주식회사 | Photographing device and photographing method |
| US8953083B2 (en) * | 2012-02-13 | 2015-02-10 | Apple Inc. | Housing camera lens cover using GRIN technology |
| CN104406894A (en) * | 2014-11-26 | 2015-03-11 | 东北电力大学 | Detecting device and detecting method for pollution degree of transparent oil particles |
| CN205156933U (en) * | 2015-10-28 | 2016-04-13 | 南京协辰电子科技有限公司 | Optical sensor and have this optical sensor's check out test set |
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Granted publication date: 20181002 Termination date: 20211028 |