CN101995238A - Optical sensing device - Google Patents
Optical sensing device Download PDFInfo
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- CN101995238A CN101995238A CN2009101682929A CN200910168292A CN101995238A CN 101995238 A CN101995238 A CN 101995238A CN 2009101682929 A CN2009101682929 A CN 2009101682929A CN 200910168292 A CN200910168292 A CN 200910168292A CN 101995238 A CN101995238 A CN 101995238A
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- housing
- induction device
- optical
- shield assemblies
- sensor assembly
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Abstract
The invention discloses an optical sensing device, comprising a housing, at least one light-emitting component, at least one optical sensing component and a shading component. The inside of the housing is provided with a blackbody condition space, and the light-emitting component projects a beam towards the blackbody condition space. The optical sensing component is arranged on the housing and adjacent to the blackbody condition space. The shading component is movably arranged in the blackbody condition space and has at least one end face which is contacted with the housing and provided with at least one groove. When the shading component moves to at least one shading region of the blackbody condition space, the optical sensing component is shaded by the shading component. When the shading component departs from the shading region, the optical sensing component senses the beam to send out a sensing signal.
Description
Technical field
The present invention is meant a kind of optical induction device with high induction sensitivity especially about a kind of optical induction device.
Background technology
In daily life, angle of inclination or displacement situation in order to grasp object can use various inductors usually, and these inductors comprise horizontal shift inducing function, perpendicular displacement inducing function or inclination angle inducing function usually.In the practice utilization, these inductors can apply to many induction technologies usually, such as optical sensor technology, sound wave induction technology or electricity induction technology etc.Wherein, because the optical sensor technology has the fireballing advantage of induction, so be applied to making highly sensitive induction purposes gradually.
Putting before this, below will enumerate two kinds of more representative existing optical sensor technology and be specified.See also Fig. 1 to Fig. 3, Fig. 1 is presented in the optical induction device of one first existing embodiment, the schematic perspective view of second housing after first housing decomposes; Fig. 2 for show when second shell combination among Fig. 1 behind first housing, along the cut-open view at A-A visual angle; Fig. 3 is for being presented among the first existing embodiment relative position relation of luminescence component, shield assemblies, shaded areas and optical sensor inter-module.
As Fig. 1 and shown in Figure 2, an optical induction device 1 comprises a housing 10, and housing 10 is combined by one first housing 11 and one second housing 12.Simultaneously, optical induction device 1 also comprises a luminescence component 13, two groups of optical sensor assemblies 14,14a and shield assemblies 15.
When inclination angle that utilizes optical induction device 1 induction one to wait to respond to the object (not shown) or displacement, optical induction device 1 can be arranged at object to be responded to, and can make luminescence component 13 project a light beam LB0 towards black matrix condition Space in BB S0.Light beam LB0 repeatedly reflects via first housing 11, second housing 12 or shield assemblies 15 in black matrix condition Space in BB S0, and black matrix condition Space in BB S0 is illuminated by light beam LB0.
As shown in Figure 3, when waiting to respond to object when a first direction D0 moves or rise, shield assemblies 15 can be subjected to inertial force or action of gravity, when inertial force or gravity along the component on plane, first housing, 11 place during greater than the friction force of 11 of the end face 151 of shield assemblies 15 and first housings, shield assemblies 15 will move along a second direction D0 ' opposite with first direction D0.
When shield assemblies 15 moved to a shaded areas SR0 in black matrix condition Space in BB S0, optical sensor assembly 14 crested assemblies 15 covered; At this moment, because among this another shaded areas SR0 ', optical sensor assembly 14a not crested assembly 15 covers; Therefore, optical sensor assembly 14a can sense light beam LB0, and spreads out of an induced signal according to this.In addition, when shield assemblies 15 was left shaded areas SR0, optical sensor assembly 14 just can shield assemblies 15 not cover; At this moment, optical sensor assembly 14 also can be sensed light beam LB0, and spreads out of induced signal according to this.
See also Fig. 4, it is presented among the one second existing embodiment, the relative position relation of luminescence component, shield assemblies, shaded areas and optical sensor inter-module.As shown in Figure 4, in the second existing embodiment, replace above-mentioned optical induction device 1 with another optical induction device 1a.In optical induction device 1a, be to replace the first above-mentioned housing 11, and replace the second above-mentioned housing 12 with another second housing (not shown) that matches with the first housing 11a with the first housing 11a.The first housing 11a and second housing be combination with one another and within it portion form a black matrix condition Space in BB Sa0.Simultaneously, optical induction device 1a also comprises a luminescence component 13a, two groups of optical sensor assembly 14b, 14c and above-mentioned shield assemblies 15, and the relative position relation of 15 of optical assembly 13a, optical sensor assembly 14b, 14c and above-mentioned shield assemblies as shown in Figure 4.Because in the second existing embodiment, the action principle of each assembly is same or similar with the first existing embodiment, is no longer given unnecessary details with next.
Such as those of ordinary skill all can be understood in affiliated technical field, in above cited prior art, because end face 151 and first housing, 11 contacted contact area CA0 are π R0
2Therefore, can there be bigger friction force in shield assemblies 15 and 11 of first housings.Under these circumstances, when optical induction device 1 is arranged at above-mentioned object to be responded to, and wait to respond to the displacement acceleration of object or inclination angle hour, above-mentioned inertial force or gravity can't overcome the friction force of 11 of shield assemblies 15 and first housings and shield assemblies 15 is moved with respect to first housing 11.Change to say it, optical induction device 1 can't react waits to respond to the displacement of object or the variation a little at inclination angle, that is the induction sensitivity of 1 pair of displacement of optical induction device or inclination angle variation will become relatively poor.
Summary of the invention
Technical matters and purpose that institute of the present invention desire solves:
Because the problem that the induction sensitivity that optical induction device ubiquity that prior art provided changes displacement acceleration or inclination angle will become relatively poor; Edge this, fundamental purpose of the present invention is to provide a kind of optical induction device, it is utilize to reduce contact area between shield assemblies and housing to reduce the friction force between shield assemblies and housing.
The technological means that the present invention deals with problems:
The present invention is for solving prior art problems, and the technological means that is adopted provides a kind of optical induction device, and this optical induction device comprises a housing, at least one luminescence component, at least one optical sensor assembly and a shield assemblies.Enclosure interior has a black matrix condition space, and luminescence component is to project a light beam towards black matrix condition space.The optical sensor assembly is for being arranged on housing, and is adjacent to black matrix condition space.Shield assemblies is arranged in this black matrix condition space movably, and has at least one end face, and end face contacts with housing, and offers at least one groove.When shield assemblies moved at least one shaded areas in the black matrix condition space, optical sensor assembly crested assembly covered; When shield assemblies was left shaded areas, optical sensor assembly induction light beam spread out of an induced signal according to this.
In preferred embodiment of the present invention, luminescence component can be a light emitting diode (Light Emitting Diode; LED); The optical sensor assembly can be photistor (Photo Transistor) or optical diode (PhotoDiode); Housing can be combined by one first housing and one second housing; Shield assemblies can be an entity column structure; And groove can be a cylindrical recesses, a taper groove, a cup-shaped groove or a concave surface groove.
The present invention's effect against existing technologies:
Compared to the optical induction device that prior art provided, owing in optical induction device provided by the present invention, be to offer at least one groove at the contacted end face of at least one and housing of shield assemblies; Therefore, can effectively reduce the contact area between shield assemblies and housing, so as to reducing the friction force between shield assemblies and housing.The more important thing is, because the less cause of friction force between shield assemblies and housing, so can significantly promote the induction sensitivity of optical induction device to displacement or inclination angle variation.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is presented in the optical induction device of one first existing embodiment, the schematic perspective view of second housing after first housing decomposes;
Fig. 2 for show when second shell combination among Fig. 1 behind first housing, along the cut-open view at A-A visual angle;
Fig. 3 is for being presented among the first existing embodiment relative position relation of luminescence component, shield assemblies, shaded areas and optical sensor inter-module;
Fig. 4 is for being presented among the one second existing embodiment relative position relation of luminescence component, shield assemblies, shaded areas and optical sensor inter-module;
Fig. 5 is presented in the optical induction device of first embodiment of the invention, the schematic perspective view of second housing after first housing decomposes;
Fig. 6 for show when second shell combination among Fig. 5 behind first housing, along the cut-open view at B-B visual angle;
Fig. 7 is for being presented in the first embodiment of the invention relative position relation of luminescence component, shield assemblies, shaded areas and optical sensor inter-module;
Fig. 8 is for showing the shield assemblies structural representation of second embodiment of the invention;
Fig. 9 is for showing the shield assemblies structural representation of third embodiment of the invention;
Figure 10 is for showing the shield assemblies structural representation of fourth embodiment of the invention;
Figure 11 is presented in the optical induction device of fifth embodiment of the invention, second housing and the shield assemblies schematic perspective view after first housing decomposes; And
Figure 12 is for being presented in the fifth embodiment of the invention, and shield assemblies is arranged at schematic perspective view behind the black matrix condition space.
Wherein, Reference numeral
1～1c optical induction device
10 housings
11～11c, first housing
12 second housings
13～13c luminescence component
14～14h optical sensor assembly
15 shield assemblies
151,152 end faces
2 optical induction devices
20 housings
21 first housings
22 second housings
23 luminescence components
24,24a optical sensor assembly
25～25c shield assemblies
251～251c, 252～252c end face
253,254 cylindrical recesses
253a, 254a taper groove
253b, 254b cup-shaped groove
253c, 254c curved surface groove
3 optical induction devices
30 housings
31 first housings
32 second housings
33 luminescence components
34,34a optical sensor assembly
35 shield assemblies
LB0, LB1 light beam
BBS0, BBSa0 black matrix condition space
BBS1, BBS2 black matrix condition space
SR0, SR0 ' shaded areas
SR1, SR1 ' shaded areas
CA0, CA1 contact area
R0 first radius
R1 second radius
Embodiment
Because optical induction device provided by the present invention can be widely used in various displacement or the inclination angles of waiting to respond to object of induction, particularly be applied to respond to the inclination angle of waiting to respond to object, and relevant combination embodiment is too numerous to enumerate especially, so give unnecessary details no longer one by one at this, only enumerating wherein, five preferred embodiments are specified.
See also Fig. 5 to Fig. 7, Fig. 5 is presented in the optical induction device of first embodiment of the invention, the schematic perspective view of second housing after first housing decomposes; Fig. 6 for show when second shell combination among Fig. 5 behind first housing, along the cut-open view at B-B visual angle; Fig. 7 is for being presented in the first embodiment of the invention relative position relation of luminescence component, shield assemblies, shaded areas and optical sensor inter-module.As Fig. 5 and shown in Figure 6, an optical induction device 2 comprises a housing 20, and housing 20 is to be combined by one first housing 21 and one second housing 22.Simultaneously, optical induction device 2 also comprises a luminescence component 23, two groups of optical sensor assemblies 24,24a and shield assemblies 25.
In the present embodiment, cylindrical recesses 253 and 254 refers in particular to cylindrical grooves; Luminescence component 23 can be light emitting diode (Light Emitting Diode; LED); And optical sensor assembly 24 can be photistor (Photo Transistor) or optical diode (Photo Diode) with 24a.
As shown in Figure 5, end face 251 and first housing, 21 contacted zones are annular section, and the external radius of this annular section is the first above-mentioned radius R 0, and the inside radius of this annular section then is second radius R 1 less than first radius R 0.Putting before this, end face 251 and first housing, 21 contacted contact area CA1 are π (R0
2-R1
2).
When inclination angle that utilizes optical induction device 2 induction one to wait to respond to the object (not shown) or displacement, optical induction device 2 can be arranged at object to be responded to, and can make luminescence component 23 project a light beam LB1 towards black matrix condition Space in BB S1.Light beam LB1 carries out primary event at least via first housing 21, second housing 22 or shield assemblies 25 in black matrix condition Space in BB S1, black matrix condition Space in BB S1 is illuminated by light beam LB1.
As shown in Figure 7, when waiting to respond to object when a first direction D1 moves or rise, shield assemblies 25 can be subjected to inertial force or action of gravity, when inertial force or gravity along the component on plane, first housing, 21 place during greater than the friction force of 21 of the end face 251 of shield assemblies 25 and first housings, shield assemblies 25 will move along a second direction D1 ' opposite with first direction D1.
When shield assemblies 25 moved to a shaded areas SR1 in black matrix condition Space in BB S1,25 parts of optical sensor assembly 24 crested assemblies or cover were fully sent out a weak induced signal according to this.Simultaneously, because among this another shaded areas SR1 ', optical sensor assembly 24a not crested assembly 25 covers; Therefore, optical sensor assembly 24a can sense light beam LB1 and spread out of an induced signal according to this, and induced signal can be the last one induced signal, and it is that the intensity of the light beam LB1 that senses of the strength ratio optical sensor assembly 24 of the light beam LB1 that senses of expression optical sensor assembly 24a is for strong.In addition, when shield assemblies 25 was left shaded areas SR1, optical sensor assembly 24 just can shield assemblies 25 not cover; At this moment, optical sensor assembly 24 also can be sensed light beam LB1, and sends out strong induced signal according to this.
In practical application, above-mentioned strong/weak induced signal not only can be used for judging displacement or the inclination angle of waiting to respond to object, also can send a control signal according to this and treat induction object or other system and carry out feedback control or other general control, for example: can utilize control signal control to wait to respond to the displacement or the inclination angle of object; Or utilize control signal to control other work system.
See also Fig. 8, it is for showing the shield assemblies structural representation of second embodiment of the invention.As shown in Figure 8, in second embodiment of the invention, replace the shield assemblies 25 described in first embodiment with another shield assemblies 25a.Shield assemblies 25a has biend 251a and 252a.Different with the shield assemblies 25 described in first embodiment is, offers a taper groove 253a at end face 251a, and end face 252a offers another taper groove 254a.In the present embodiment, taper groove 253a and 254a are for referring in particular to coniform groove.
See also Fig. 9, it is for showing the shield assemblies structural representation of third embodiment of the invention.As shown in Figure 9, in third embodiment of the invention, be to replace the shield assemblies 25 described in first embodiment with another shield assemblies 25b.Shield assemblies 25b has biend 251b and 252b.Different with the shield assemblies 25 described in first embodiment is, offers a cup-shaped groove 253b at end face 251b, and end face 252b offers another cup-shaped groove 254b.
See also Figure 10, it is for showing the shield assemblies structural representation of fourth embodiment of the invention.As shown in figure 10, in fourth embodiment of the invention, replace the shield assemblies 25 described in first embodiment with another shield assemblies 25c.Shield assemblies 25c has biend 251c and 252c.Different with the shield assemblies 25 described in first embodiment is, offers a curved surface groove 253c at end face 251c, and end face 252c offers another curved surface groove 254c.
Please continue to consult Figure 11 and Figure 12, Figure 11 is presented in the optical induction device of fifth embodiment of the invention, second housing and the shield assemblies schematic perspective view after first housing decomposes; Figure 12 is for being presented in the fifth embodiment of the invention, and shield assemblies is arranged at schematic perspective view behind the black matrix condition space.
As Figure 11 and shown in Figure 12, an optical induction device 3 comprises a housing 30, and housing 30 is to be combined by one first housing 31 and one second housing 32.Simultaneously, optical induction device 3 also comprises a luminescence component 33, three groups of optical sensor assemblies 34,34a and shield assemblies 35.The main difference of optical induction device 3 and above-mentioned optical induction device 2 is in housing 30 and has a square appearance, and inner black matrix condition Space in BB S2 with an approximate rhombus.In addition, luminescence component 33, optical sensor assembly 34 are three corners that are adjacent to black matrix condition Space in BB S2 with 34a.Except above difference, in fifth embodiment of the invention, the action principle and the first embodiment of the invention of each assembly are same or similar, are no longer given unnecessary details with next.
Such as those of ordinary skill all can be understood in affiliated technical field, because in the invention described above first embodiment, end face 251 and first housing, 21 contacted contact area CA1 are π (R0
2-R1
2); Therefore, be π R0 compared to the CA0 of contact area described in the prior art
2, contact area CA1 is obviously little than contact area CA0, and the friction force that causes 21 of the shield assemblies 25 and first housings is less than the friction force of 11 of shield assemblies 15 and first housings.Thus, even if it is less to wait to respond to the displacement or the inclination angle of object, also is enough to overcome the friction force of 21 of the shield assemblies 25 and first housings and shield assemblies 25 is moved with respect to first housing 21.Change saying it, but optical induction device 2 waits to respond to the displacement acceleration of object or the variation a little at inclination angle with effecting reaction, that is the induction sensitivity that 2 pairs of displacements of optical induction device or inclination angle change can obtain effective lifting.
Such as those of ordinary skill more can be understood in affiliated technical field, because end face 251 and first housing, 21 contacted contact area CA1 are π (R0
2-R1
2) be closely bound up in the friction force of 21 of shield assemblies 25 and first housings; Therefore, when first radius R 0 is a fixed value, can adjust contact area CA1 by adjusting second radius R 1, adjust the induction sensitivity that 2 pairs of displacements of optical induction device or inclination angle change according to this.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and entity thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (14)
1. an optical induction device is characterized in that, comprises:
One housing, its inside have a black matrix condition space;
At least one luminescence component projects a light beam towards this black matrix condition space;
At least one optical sensor assembly is arranged on this housing, and is adjacent to this black matrix condition space;
One shield assemblies can be arranged on movably in this black matrix condition space, and have at least one end face, and this end face contacts with this housing, and offers at least one groove;
Wherein, when this shield assemblies moved at least one shaded areas in this black matrix condition space, this optical sensor assembly was covered by this shield assemblies; When this shield assemblies was left this shaded areas, this optical sensor assembly was responded to this light beam, spreads out of an induced signal according to this.
2. optical induction device according to claim 1 is characterized in that, this light beam is responded to by this optical sensor assembly after reflecting once at least via this housing earlier in this black matrix condition space again.
3. optical induction device according to claim 1 is characterized in that, this light beam is responded to by this optical sensor assembly after reflecting once at least via this shield assemblies earlier in this black matrix condition space again.
4. optical induction device according to claim 1 is characterized in that, this induced signal is the last one induced signal.
5. optical induction device according to claim 4 is characterized in that, when this optical sensor assembly is covered by this shield assemblies, sends out a weak induced signal.
6. optical induction device according to claim 1 is characterized in that, this groove is a cylindrical recesses.
7. optical induction device according to claim 1 is characterized in that, this groove is a taper groove.
8. optical induction device according to claim 1 is characterized in that, this groove is a cup-shaped groove.
9. optical induction device according to claim 1 is characterized in that, this groove is a concave surface groove.
10. optical induction device according to claim 1 is characterized in that, this luminescence component is a light emitting diode.
11. optical induction device according to claim 1 is characterized in that, this optical sensor assembly is a photistor.
12. optical induction device according to claim 1 is characterized in that, this optical sensor assembly is an optical diode.
13. optical induction device according to claim 1 is characterized in that, this housing is formed by one first housing and one second shell combination.
14. optical induction device according to claim 1 is characterized in that, this shield assemblies is an entity column structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101682929A CN101995238A (en) | 2009-08-20 | 2009-08-20 | Optical sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101682929A CN101995238A (en) | 2009-08-20 | 2009-08-20 | Optical sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101995238A true CN101995238A (en) | 2011-03-30 |
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ID=43785706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101682929A Pending CN101995238A (en) | 2009-08-20 | 2009-08-20 | Optical sensing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563030A (en) * | 2012-02-24 | 2012-07-11 | 重庆长安汽车股份有限公司 | Auto electronic shifter assembly |
| CN104914274A (en) * | 2015-06-08 | 2015-09-16 | 福州汇智集佳电子技术有限公司 | Acceleration sensor with double precision |
| CN104931727A (en) * | 2015-06-08 | 2015-09-23 | 福州汇智集佳电子技术有限公司 | Accelerometer |
| CN105652036A (en) * | 2015-06-08 | 2016-06-08 | 福州睿创纺织科技有限公司 | Light-emitting frequency-based acceleration sensor |
| CN111174814A (en) * | 2020-03-04 | 2020-05-19 | 西昌学院 | Correcting unit of levelling rod slope |
-
2009
- 2009-08-20 CN CN2009101682929A patent/CN101995238A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563030A (en) * | 2012-02-24 | 2012-07-11 | 重庆长安汽车股份有限公司 | Auto electronic shifter assembly |
| CN102563030B (en) * | 2012-02-24 | 2015-09-09 | 重庆长安汽车股份有限公司 | A kind of automotive electronics change gear assembly |
| CN104914274A (en) * | 2015-06-08 | 2015-09-16 | 福州汇智集佳电子技术有限公司 | Acceleration sensor with double precision |
| CN104931727A (en) * | 2015-06-08 | 2015-09-23 | 福州汇智集佳电子技术有限公司 | Accelerometer |
| CN105182001A (en) * | 2015-06-08 | 2015-12-23 | 福州市智聚物联科技有限公司 | Acceleration sensor |
| CN105548613A (en) * | 2015-06-08 | 2016-05-04 | 福州睿创纺织科技有限公司 | Acceleration transducer based on photoresistors |
| CN105548612A (en) * | 2015-06-08 | 2016-05-04 | 福州睿创纺织科技有限公司 | Acceleration transducer based on light emitting diodes |
| CN105652036A (en) * | 2015-06-08 | 2016-06-08 | 福州睿创纺织科技有限公司 | Light-emitting frequency-based acceleration sensor |
| CN104914274B (en) * | 2015-06-08 | 2020-09-01 | 福州睿创纺织科技有限公司 | Acceleration sensor with double precision |
| CN111174814A (en) * | 2020-03-04 | 2020-05-19 | 西昌学院 | Correcting unit of levelling rod slope |
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Application publication date: 20110330 |