CN2600811Y - Light projector and light receiver of multi-optical-axis photoelectric sensor - Google Patents
Light projector and light receiver of multi-optical-axis photoelectric sensor Download PDFInfo
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- CN2600811Y CN2600811Y CN 02282470 CN02282470U CN2600811Y CN 2600811 Y CN2600811 Y CN 2600811Y CN 02282470 CN02282470 CN 02282470 CN 02282470 U CN02282470 U CN 02282470U CN 2600811 Y CN2600811 Y CN 2600811Y
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Abstract
The utility model provides a light projecting element and a light receiving element of a multi-optical-axle photoelectric sensor, the light projecting element and the light receiving element can restrain the position deviation of the light projecting element or the light receiving element, and the lens part, and can accurately carry out the stable inspection behavior. A pair of the locating pins (17, 17) and the light projecting element are integrated. A pair of the locating holes (18, 18) corresponding to the pair of the locating pins (17, 17) is through crossed on a circuit motherboard 14. The two locating pins (17, 17) simultaneously embed the light projecting lens part 12 into a concave place 11a of a main case 11 by passing through each through-hole (19a, 19a) of a pair of the polygonal barrel parts (19, 19); and the front ends of the locating pins (17, 17) are inserted into the locating holes (18, 18), simultaneously, the circuit motherboard 14 is encased into the main case 11; that the circuit motherboard 14 and the located light projecting lens part 12 can assembled into the light projecting element 10.
Description
Technical field
The utility model relates to the light projector device and the infrared rays receiver of multi-beam photoelectric sensor, especially relates to the base plate with light-projecting component and photo detector and the assembly structure of lenticular unit.
Background technology
This multi-beam photoelectric sensor is with for example, have the light projector device of a plurality of light-projecting components that form a line with also be form a line and with above-mentioned each light-projecting component form relative configuration of infrared rays receiver optical axis, that have a plurality of photo detectors respectively in couples, form certain surveyed area in the middle of making it.When in surveyed area, having object, be blocked to the light that the photo detector paired with it sends from certain light-projecting component, the light income level that is received by this photo detector changes.Then can detect the object that is positioned at surveyed area by detecting this variation.
In the multi-beam photoelectric sensor in the past, light projector device 1 as shown in Figure 7 for example, its structure is to have with certain base plate that is being spaced above-mentioned a plurality of light-projecting components 3 on main body housing, be formed with the leaded light piece 4 that makes a plurality of leaded light through hole 4a that the light from each light-projecting component 2 passes through, and forms and is aligned to the lenticular unit 5 that makes its a plurality of lens component 5as corresponding with each leaded light through hole 4a.In more detail, leaded light piece 4 is made of one with main body housing, and by inciting somebody to action a pair of prominent pin 4a disposed thereon highlightedly, 4b inserts the mounting hole 3a that is formed on base plate 3 these sides respectively, in the 3a, makes base plate 3 with respect to leaded light piece 4 location and fixing.On the other hand, lenticular unit 5 is embedded in the recess 4c that is formed on the leaded light piece 4.Thereby light projector device forms as shown in Figure 7 makes the as a whole structure that is mounted.
Yet, in order in surveyed area, correctly stably object to be detected, between each optical axis, must make send by light-projecting component, arrive consistent with the light quantity of the light of its paired normal photo detector.That is to say, must dispose base plate and lenticular unit to such an extent that make each light-projecting component and each light projector lens component have certain position relation each other.
But with regard to said apparatus, base plate 3 and lenticular unit 5 are by the structure (with reference to Fig. 7) of leaded light piece 4 assemblings, when assembling operation, between base plate 3 and leaded light piece 4, at leaded light piece 4, and all can produce dislocation separately between leaded light piece 4 and the lens component 5.Therefore, because the alternate position spike of these accumulations is easy to make base plate 3 and lens component 5a to produce dislocation, when being configured in normal position with respect to certain light-projecting component 2 lens component 5a, then be in respect to other light-projecting component 2 lens 5a and depart from entopic position, thereby produce departing from of optical axis.
So, difference appears by light quantity each light-projecting component emission, that arrive the light of paired photo detector, because the change level of the light income that has or not the photo detector that causes of object is also different between each optical axis, thereby exist detection sensitivity to produce this class problem of fluctuation.
In addition, because the light that causes by lens component 5a emission that departs from of above-mentioned optical axis produces fluctuation on the direction of propagation, therefore, when with the distance setting between light projector unit 1 and light receiving unit when surpassing certain distance, then all photo detector all can not receive the light of being launched by light-projecting component, thereby has also limited the scope of surveyed area.
In addition, such optical axis deviation is easy to produce at light receiving unit similarly, and is the same with the optical axis deviation of light projector unit 1, still can become the major reason of detection sensitivity fluctuation.
Summary of the invention
The utility model proposes at the problems referred to above, its purpose is to provide a kind of position deviation that suppresses light-projecting component or photo detector and lens component, can correctly carry out the light projector unit and the light receiving unit of the multi-beam photoelectric sensor of stable detection action.
In order to achieve the above object, the light projector unit of the multi-beam photoelectric sensor of first scheme of the present utility model is the light projector unit with the multi-beam photoelectric sensor of the light receiving unit subtend configuration with a plurality of photo detectors, have: the base plate that is arranged with a plurality of light-projecting components, the main body case of interior this base plate of dress, be arranged on the place ahead of the above-mentioned light-projecting component in the aforementioned body case, have make from the light of each light-projecting component emission by and shine the light projector lenticular unit of the lens component of above-mentioned each photo detector one side, it is characterized in that: on above-mentioned light projector lenticular unit, when having at least one pair of connection projection to be made of one with it, on above-mentioned base plate, form and the corresponding respectively portion that is connected of above-mentioned a pair of connection projection, above-mentioned light projector lenticular unit and above-mentioned base plate with above-mentioned when being connected projection and being connected with the portion of being connected realization assemble and locate.
The light receiving unit of the multi-beam photoelectric sensor of alternative plan of the present utility model is the light receiving unit with the multi-beam photoelectric sensor of the light projector unit subtend configuration with a plurality of light-projecting components, have: the base plate that is arranged with a plurality of photo detectors, the main body case of interior this base plate of dress, be arranged on the place ahead of the above-mentioned photo detector in the aforementioned body case, have make from the light of above-mentioned each light-projecting component emission by and the sensitive lens parts of the lens component that receives by above-mentioned each photo detector, it is characterized in that: on above-mentioned sensitive lens parts, when having at least one pair of connection projection to be made of one with it, on above-mentioned base plate, form and the corresponding respectively portion that is connected of above-mentioned a pair of connection projection, above-mentioned sensitive lens parts and above-mentioned base plate with above-mentioned when being connected projection and being connected with the portion of being connected realization assemble and locate.
The feature of the light projector unit of the multi-beam photoelectric sensor of third party's case of the present utility model is in above-mentioned first scheme, and the light projector lenticular unit is a plurality of lens components of corresponding configuration with a plurality of light-projecting components are linked to each other and to be made of one.The feature of the light receiving unit of the multi-beam photoelectric sensor of cubic case of the present utility model is: in above-mentioned alternative plan, the sensitive lens parts are a plurality of lens components of corresponding configuration with a plurality of photo detectors are linked to each other and to be made of one.
The feature of the light projector unit of the multi-beam photoelectric sensor of the 5th scheme of the present utility model is: above-mentioned first or third party's case in, have between each of each light-projecting component of being arranged on mutual correspondence and each lens component, and have its configuration and make it surround and arrive the light guide member of through hole of light path of the light of lens component by the light-projecting component emission.The feature of the light receiving unit of the multi-beam photoelectric sensor of the 6th scheme of the present utility model is: in the above-mentioned second or the 6th scheme, have between each of each photo detector of being arranged on mutual correspondence and each lens component, and have its configuration and make its encirclement enter the light guide member of through hole of light path that lens component arrives the light of photo detector.
The feature of the light projector unit of the multi-beam photoelectric sensor of the 7th scheme of the present utility model is: in the above-mentioned the 3rd or the 5th scheme, light projector unit Duo Tai can be connected and composed, it connects projection and is arranged in the light projector lenticular unit, and is positioned at inboard part near comparing with the terminal lens component of the coupling part of other unit.
The feature of the light receiving unit of the multi-beam photoelectric sensor of all directions of the present utility model case is: in the above-mentioned the 4th or the 6th scheme, many of light receiving units can be connected and composed, connect projection and be arranged in the sensitive lens parts, and be positioned at inboard part near comparing with the terminal lens component of the coupling part of other unit.
The utlity model has following effect:
Adopt the structure of the utility model first scheme and alternative plan, be will be formed on connection projection on the lenticular unit be connected to be formed on the base plate of arranging element (light-projecting component, photo detector) be connected portion the time, the structure that base plate and lenticular unit (light projector lenticular unit, sensitive lens parts) are fitted together.That is, base plate can be realized directly location by being connected the projection and the portion of being connected with lenticular unit.Therefore, compare by the prior art that leaded light piece (main body case) carries out indirect addressing with lenticular unit with base plate, can suppress position deviation, can avoid the fluctuation of the detection sensitivity between warpage caused each optical axises such as (optical axis deviations) and can carry out the light projector unit of normal detection of object and the stricturization of the standoff distance (surveyed area) of light receiving unit because of optical axis.
Adopt the structure of the utility model the 3rd and cubic case, because a plurality of lens components (light projector lens component that will be corresponding with each element, the sensitive lens part) with a light transparent member (light projector lenticular unit, the sensitive lens parts) be made of one, a pair of connection projection is set on this lenticular unit at least, if it is connected with the portion of being connected of base plate, then whole lens components can be located together with respect to each light-projecting component.Therefore, for example all be provided with each of a plurality of lenticular units with a lens component and be connected projection and the structure that substrate positions is compared, assembling operation becomes and is easy to simultaneously, also can realize the minimizing of component number and simplify component structural.
Adopt the structure of the utility model the 5th scheme, between each of each corresponding mutually light-projecting component and each lens component, the through hole that is formed on the light guide member is set, it is centered on from the light path light-projecting component emission, that arrive the light of lens component.In addition, adopt the structure of the utility model the 6th scheme, same through hole that is formed on the light guide member that is provided with between each of each corresponding mutually photo detector and each lens component centers on it and incides the light path that lens component arrives the light of photo detector.
Therefore, by adjusting the diameter of each through hole, in the light projector unit, its structure can make from the light of each light-projecting component emission is only launched by the lens component corresponding with it; And in light receiving unit, its structure can make the light that incides each lens component only be subjected to light by the photo detector corresponding with it.Therefore, as multi-beam photoelectric sensor generally speaking, for example its structure can be got rid of the influence by the so-called interference lights such as light of non-paired other light-projecting component emission, and only is being in rightly, launches the action that receives light between normal light-projecting component and the photo detector.In multi-beam photoelectric sensor, for example, in order to detect the small items of the surveyed area that is arranged in wider range, many of often that the configuration space between each optical axis is minimum unit connect use.
In this case, if above-mentioned connection projection is for example made, be arranged on its Outboard Sections with in lenticular unit, comparing, then in this coupling part, between the terminal lens component of Unit two, have connection projection separately with the close terminal lens component in other coupling part, unit.In a word, can produce following problem: hold two at least at the configuration space of the optical axis of the coupling part of each unit and connect juts, and the configuration space between the optical axis of other parts is unlikely narrow and small.
Therefore, adopt the of the present utility model the 7th and the structure of case from all directions, since will connect jut make be arranged on lenticular unit in compare the part that is positioned at the inboard with the close terminal lens component in the coupling part of other unit, then can avoid connecting the projection continued presence between each optical axis, and can and the optical axis of other parts between similarly, realize narrow and smallization of optical axis spacing.
Description of drawings
Fig. 1 is the view sub-anatomy of light projector unit of the multi-beam photoelectric sensor of an embodiment of the present utility model.
Fig. 2 is the cut-open view after the light projector unit of Fig. 1 is assembled.
Fig. 3 is the cut-open view of light projector unit of the XX section of Fig. 2.
Fig. 4 is the upward view (B) of the vertical view (A) of the latch seen from the top among Fig. 3 and the socket seen from the below.
Fig. 5 is the cut-open view after two light projector unit are connected.
Fig. 6 is the cut-open view of the modified example of light projector unit.
Fig. 7 is the view sub-anatomy of light projector unit of the multi-beam photoelectric sensor of prior art.
Fig. 8 is the cut-open view after the light projector unit among Fig. 7 is assembled.
Embodiment
Below, referring to figs. 1 through Fig. 5 just for example, be applicable to that the embodiment of light projector unit 10 of the multi-beam photoelectric sensor of 4 optical axis formulas illustrates the utility model.In addition, for the convenience that illustrates, in each figure, have only light projector parts 12 usefulness side views and represent without sectional view.
Light projector lenticular unit 12, as shown in Figure 1, be 4 lens components 13 using of light projector with certain interval (being for example d in the present embodiment) alternately, form the light transparent member (suitable) of one simultaneously with the structure of claim 1 along the length direction of above-mentioned light projector unit 10.Internal placement at main body case 11 has circuit substrate 14, on this circuit substrate, is fixing 4 each lens component 13 corresponding light-projecting components 15 with said lens parts 12 by soldering.In addition, each light-projecting component 15 utilizes and seals as silicones or epoxy resin 15a.Making such structure, is in order to prevent because light-projecting component is electrically connected with circuit substrate 14 with bonding wire, and this bonding wire carefully and a little less than, be easy to fracture.
In addition, in the present embodiment, be provided with " light guide member " suitable structure alleged with claim 5.Concrete is, in main body case 11, on the wall of light projector face one side (below, be called " light projector wall "), a plurality of light conducting cylinder portions 16 and light-proofness parts with through hole 16a are made of one, its setting make its surround respectively light by each light-projecting component 15 emission arrive each lens component 13 corresponding with it light light path around, these light conducting cylinder portions 16 are with external surface each light-projecting component 15 1 side-prominent setting on circuit substrate 14 of front end taper.In addition, the through hole 16a of each light conducting cylinder portion 16, its diameter is made each the lens component 13 corresponding size with light projector lenticular unit 12, and will connect the formed peristome of above-mentioned light projector wall as the bottom, extends and forms the less mortar shape of diameter to each light-projecting component 15 1 side of circuit substrate 14.
Then, illustrate in the present embodiment, be used for the structure that positions between circuit substrate 14 and the light projector lenticular unit 12.
On light projector parts 12, and be connected the corresponding a pair of register pin 17,17 of projection and between the lens component 13 that is positioned at the lens component at two ends (below, be called " terminal lens component 13a, 13a ") and and its next-door neighbour inboard, be made of one respectively with parts 12 at it.On the other hand, on circuit substrate 14, break-through forms respectively and these a pair of register pin 17,17 corresponding a pair of pilot holes 18,18.And, about their assembling, as shown in Figure 2, with two register pins 17,17 each through hole 19a, 19a, simultaneously light projector parts 12 are embedded in the recess 11a of main body cases 11 by the one-to-many dihedral tube portion on corresponding with it, the outstanding light projector wall that is arranged on main body case 11 other shapes such as (also) cylindrical portion 19,19.Meanwhile, by when the front of each register pin 17,17 being inserted in the above-mentioned pilot hole 18,18, circuit substrate 14 is installed in the main body case 11, and as shown in Figure 2, the 10 completed states in location with circuit substrate 14 and light projector parts 12 in light projector unit have been realized assembling.In addition, for example, can install respectively at the two ends of light projector unit 10 and to be used for and to connect latch 20 and the sockets 21 that use with several, certain circuit of not shown circuit substrate is electrically connected (with reference to Fig. 2 and Fig. 4) by these each leading part 20a, 21a that draw.Therefore, by plug connector 20,21 and circuit,, for example, then can make each light-projecting component 15 finish the light projector action successively with certain timing according to the drive signal that transmits successively.
Have, as shown in Figure 2, above-mentioned each 19,19 both of polygon tube portion make sustained height again, and when embedding register pin 17,17 in the above-mentioned pilot hole 18,18, its structure makes the leading section of polygon tube portion 19,19 contact with circuit substrate 14.Thereby, when assembling operation, by circuit substrate 14 being advanced to the position that on depth direction, to move again owing to the leading section contact of polygon tube portion 19,19, can guarantee that then circuit substrate is in substantially parallel state with respect to light projector lenticular unit 12.Therefore, the position deviation in the time of can preventing circuit substrate 14 and 12 assemblings of light projector lenticular unit.In addition, in the present embodiment, in main body case,, form the step surface 11a that also contacts when being in the periphery of circuit substrate 14 with polygon tube portion 19,19 position contacting with the certain position of the internal face of the adjacent two side of above-mentioned light projector wall (can be in the two side either party internal face).Position deviation in the time of preventing circuit substrate 14 and 12 assemblings of light projector lenticular unit more reliably with this structure.
In addition, on the outer peripheral face of the front end in above-mentioned register pin 17,17, with its external diameter size do than the internal diameter of the pilot hole 18,18 of circuit substrate 14 slightly bigger, along the circumferential direction be interrupted the first diameter increase 17a of portion that forms.Whereby, rocking between circuit capable of inhibiting base plate 14 and the light projector lenticular unit 12 can position more reliably and fix.
Have again, in register pin 17,17 on the outer peripheral face of bottom, its outer radial bottom increased continuously and do taperedly, still along the circumferential direction form the second diameter-increasing portion 17b that is interrupted.And the external diameter of the lowermost end of register pin 17,17 is designed to the internal diameter of through hole 19a, the 19a of above-mentioned polygon tube portion 19,19 basic identical.Be advanced in this through hole 19a, the 19a by bottom part always, light projector lenticular unit 12 and circuit substrate 14 relative main body cases 11 can be realized not having the location of rocking and fixing register pin 17,17.
Structure like this, in the present embodiment is that circuit substrate 14 and light projector parts 12 are realized directly location by register pin 17,17 and pilot hole 18,18.Therefore, compare by the prior art of leaded light piece (main body case 11) indirect addressing with light projector lenticular unit 12 with circuit substrate 14, can suppress position deviation, the fluctuation of detection sensitivity and reducing of surveyed area that can prevent because the bending (optical axis deviation) of optical axis etc. occurs between each optical axis.
In addition, because the structure of light projector lenticular unit 12 is that four lens components 13 are fused, as long as a pair of register pin 17,17 is set on this light projector lenticular unit 12, by it being embedded the pilot hole 18,18 of circuit substrate 14, just can realize that all lens component 13 relative each light-projecting components 15 locate together.Therefore, thereby with each lens component 13 of the light projector lenticular unit 12 with a plurality of lens components 13 register pin 17,17 is set respectively and realizes that the structure of the location of relative circuit substrate 14 compares, assembling operation becomes and is easy to simultaneously, also can realize reducing component number and simplify the structure that constitutes parts.Have again, by having the light conducting cylinder portion 16 of through hole 16a, and the configuration of this through hole 16a is surrounded by around the light path of the light emission of each light-projecting component, that arrive each lens component 13 corresponding with it it respectively, only launches by the lens component corresponding with it 13 thereby its structure can make by the light of each light-projecting component 15 emissions.
In addition, in Fig. 5, expression is passed through the state that plug connector 20,21 connects with two light projector unit 10 of present embodiment.Herein, if its structure is for to be separately positioned on for example terminal lens component 13a with above-mentioned a pair of register pin 17,17, the Outboard Sections of 13a, then two register pins are positioned at each coupling part (junction of plug connector 20,21) of 10 of light projector unit.That is to say, these terminal lens component 13a, configuration space between 13a often only register pin 17,17 that space segment is set is well-to-do, comparing with the configuration space between other the lens component 13,13 (perhaps terminal lens component 13a and lens component) can not be too narrow.
Yet in the present embodiment, shown in figure, these register pins are made as mentioned above and are arranged on terminal lens component 13a, the structure between 13a and the next-door neighbour's that compares in its inboard with it the lens component 13.Therefore, even connect under the situation about using, all can make the identical structure of d at interval that is provided with between the lens component 13,13, thereby can realize the stricturization of overall optical distance between axles at many.
Other embodiment below is described.
The utility model is not subjected to the qualification of the foregoing description, and for example, embodiment as described below is also contained in the technical scope of the present utility model, and then, except that following with in the scope that does not exceed theme of the present utility model, can carry out all changes.
1, in the above-described embodiments, though the structure that light conducting cylinder portion 16 is arranged on main body case 11 is illustrated, but be not limited thereto, its structure also can be light conducting cylinder portion 16 is not set and only connect forms peristome on main body case 11, thereby makes it not block light path from the light of each light-projecting component 15 emissions to the light of the lens component 13 of light projector optical lens parts 12.
2, in the above-described embodiments, though being applicable to example explanation the utility model of light projector unit 10,, also can obtain same effect even this structure is used for light receiving unit (with claim 2,4,6,8 is corresponding).
3, in the above-described embodiments, have as the register pin 17 that connects projection with as the structure that is connected the pilot hole 18 of portion though make, but be not limited to the structure of this pin and embedded hole thereof, as long as can the structure of light projector lenticular unit 12 and circuit substrate 14 location all can by connecting.For example, also can be following structure: on the periphery of circuit substrate 14, form at least two notch recesses, embed respectively by the projection tab that will be arranged on light projector lenticular unit 12 1 sides and realize the location in this recess.
4, in addition, register pin 17 and pilot hole 18 are so long as not a pair of but a pair of above getting final product.Also can be provided with more, so long as under the sort of state, can make circuit substrate 14 and light projector lenticular unit 12 realize location and fixing getting final product with stable status.
5, in the above-described embodiments, though its structure is the polygon tube portion 19 that is provided with by in main body case 11,19 grades realize the location of the Width between light projector lenticular unit 12 and the circuit substrate 14, but be not limited thereto, also can make following structure: in connection projection of the present utility model and the above-mentioned connection status that is connected portion, limiting section is set, and this limiting section is limited in the position of leaving certain distance with circuit substrate with respect to the light projector lenticular unit.
When with the foregoing description being basic specifying, as shown in Figure 6, the front end that is formed at the second largest diameter parts 17b (with respect to above-mentioned " limiting section ") on the outer peripheral face of register pin 17,17 extends to and circuit substrate 14 position contacting that disposed, and the external diameter that forms at this leading section is bigger than the pilot hole 18 of circuit substrate 14.Therefore, circuit substrate 14 terminates in position separated by a distance so that the relative light projector lenticular unit of the stage portion 17c of its second largest diameter parts 17b front end 12 is spacing.Therefore, for example,, also can realize the location of Width between light projector lenticular unit 12 and the circuit substrate 14 even its structure does not have the light conducting cylinder 16 as above-mentioned embodiment.
Claims (10)
1, a kind of light projector unit of multi-beam photoelectric sensor is and the light projector unit of the multi-beam photoelectric sensor of the light receiving unit subtend configuration with a plurality of photo detectors to have:
Be arranged with the base plate of a plurality of light-projecting components,
The main body case of interior this base plate of dress,
Be arranged on the above-mentioned light-projecting component in the aforementioned body case the place ahead, have make from the light of each light-projecting component emission by and shine the light projector lenticular unit of the lens component of above-mentioned each photo detector one side, it is characterized in that: on above-mentioned light projector lenticular unit, when having at least one pair of connection projection to be made of one with it, on above-mentioned base plate, form and the corresponding respectively portion that is connected of above-mentioned a pair of connection projection, above-mentioned light projector lenticular unit and above-mentioned base plate with above-mentioned when being connected projection and being connected with the portion of being connected realization assemble and locate.
2, a kind of light receiving unit of multi-beam photoelectric sensor is and the light receiving unit of the multi-beam photoelectric sensor of the light projector unit subtend configuration with a plurality of light-projecting components to have:
Be arranged with the base plate of a plurality of photo detectors,
The main body case of interior this base plate of dress,
Be arranged on the above-mentioned photo detector in the aforementioned body case the place ahead, have make from the light of above-mentioned each light-projecting component emission by and the sensitive lens parts of the lens component that receives by above-mentioned each photo detector, it is characterized in that: on above-mentioned sensitive lens parts, when having at least one pair of connection projection to be made of one with it, on above-mentioned base plate, form and the corresponding respectively portion that is connected of above-mentioned a pair of connection projection, above-mentioned sensitive lens parts and above-mentioned base plate with above-mentioned when being connected projection and being connected with the portion of being connected realization assemble and locate.
3, the light projector unit of multi-beam photoelectric sensor according to claim 1 is characterized in that: above-mentioned light projector lenticular unit is a plurality of lens components of corresponding configuration with above-mentioned a plurality of light-projecting components are linked to each other and to be made of one.
4, the light receiving unit of multi-beam photoelectric sensor according to claim 2 is characterized in that: above-mentioned sensitive lens parts are a plurality of lens components of corresponding configuration with above-mentioned a plurality of photo detectors are linked to each other and to be made of one.
5, according to the light projector unit of claim 1 or 3 described multi-beam photoelectric sensors, it is characterized in that: have between each of above-mentioned each light-projecting component of being arranged on mutual correspondence and above-mentioned each lens component, and have its configuration and make it surround and arrive the light guide member of through hole of light path of the light of said lens part by above-mentioned light-projecting component emission.
6, according to the light receiving unit of claim 2 or 4 described multi-beam photoelectric sensors, it is characterized in that: have between each of above-mentioned each photo detector of being arranged on mutual correspondence and above-mentioned each lens component, and have its configuration and make its encirclement enter the light guide member of through hole of the light path of the light that said lens partly arrives above-mentioned photo detector.
7, the light projector unit of multi-beam photoelectric sensor according to claim 3, it is characterized in that: above-mentioned light projector unit Duo Tai can be connected and composed, above-mentioned connection projection is arranged in the above-mentioned light projector lenticular unit, and is positioned at inboard part near comparing with the terminal lens component of the coupling part of other unit.
8, the light receiving unit of multi-beam photoelectric sensor according to claim 4, it is characterized in that: many of above-mentioned light receiving units can be connected and composed, above-mentioned connection projection is arranged in the above-mentioned sensitive lens parts, and is positioned at inboard part near comparing with the terminal lens component of the coupling part of other unit.
9, the light projector unit of multi-beam photoelectric sensor according to claim 5, it is characterized in that: above-mentioned light projector unit Duo Tai can be connected and composed, above-mentioned connection projection is arranged in the above-mentioned light projector lenticular unit, and is positioned at inboard part near comparing with the terminal lens component of the coupling part of other unit.
10, the light receiving unit of multi-beam photoelectric sensor according to claim 6, it is characterized in that: many of above-mentioned light receiving units can be connected and composed, above-mentioned connection projection is arranged in the above-mentioned sensitive lens parts, and is positioned at inboard part near comparing with the terminal lens component of the coupling part of other unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002124038A JP4177996B2 (en) | 2002-04-25 | 2002-04-25 | Multi-optical axis photoelectric sensor light projecting unit and light receiving unit |
| JP2002124038 | 2002-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600811Y true CN2600811Y (en) | 2004-01-21 |
Family
ID=29539160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02282470 Expired - Fee Related CN2600811Y (en) | 2002-04-25 | 2002-10-31 | Light projector and light receiver of multi-optical-axis photoelectric sensor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4177996B2 (en) |
| CN (1) | CN2600811Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401445C (en) * | 2004-09-30 | 2008-07-09 | 欧姆龙株式会社 | Mounting structure of multi-optic axis photoelectric sensor |
| CN104913793A (en) * | 2014-03-15 | 2015-09-16 | 欧姆龙株式会社 | Photosensor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100627237B1 (en) | 2005-04-18 | 2006-09-25 | 주식회사 한영넉스 | Area sensor |
| JP5050562B2 (en) * | 2007-02-26 | 2012-10-17 | 日亜化学工業株式会社 | Light emitting device |
| EP2730952B1 (en) * | 2012-11-09 | 2018-08-29 | Sick Ag | Light grid |
| KR101895401B1 (en) * | 2017-05-24 | 2018-09-06 | 주식회사 오토닉스 | Sensor |
-
2002
- 2002-04-25 JP JP2002124038A patent/JP4177996B2/en not_active Expired - Fee Related
- 2002-10-31 CN CN 02282470 patent/CN2600811Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401445C (en) * | 2004-09-30 | 2008-07-09 | 欧姆龙株式会社 | Mounting structure of multi-optic axis photoelectric sensor |
| CN104913793A (en) * | 2014-03-15 | 2015-09-16 | 欧姆龙株式会社 | Photosensor |
| CN104913793B (en) * | 2014-03-15 | 2017-10-03 | 欧姆龙株式会社 | Photoelectric sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4177996B2 (en) | 2008-11-05 |
| JP2003317586A (en) | 2003-11-07 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040121 Termination date: 20091130 |