CN203881334U - Displacement sensor - Google Patents
Displacement sensor Download PDFInfo
- Publication number
- CN203881334U CN203881334U CN201420194839.9U CN201420194839U CN203881334U CN 203881334 U CN203881334 U CN 203881334U CN 201420194839 U CN201420194839 U CN 201420194839U CN 203881334 U CN203881334 U CN 203881334U
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- light
- displacement transducer
- photo detector
- reflecting plate
- projecting component
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 151
- 230000003287 optical effect Effects 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 76
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 description 30
- 230000015572 biosynthetic process Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 17
- 230000033228 biological regulation Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/04—Systems determining the presence of a target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4813—Housing arrangements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model provides a displacement sensor which is relatively small in depth and width. The displacement sensor (1) is provided with a light projection element (2), a light receiving lens (4), a reflecting plate (5) for reflecting light passing through the light receiving lens (4), a light receiving element (6) provided with a light receiving surface (6a), and a box body for storing the optical elements, wherein the light receiving surface (6a) is used for receiving the light reflected by the reflecting plate (5) and outputting a signal corresponding to the position of the light on the light receiving surface (6a); the box body is provided with a detecting surface (1x) through which the light emitted from the light projection element (2) and the light reflected by a detected object can pass; the reflecting plate (5) is used for reflecting the light along a light receiving shaft (Phi b) of the light receiving lens (4) by facing the side of the light projection element (2) and the side of the detecting surface (1x).
Description
Technical field
The utility model relates to a kind of displacement transducer, has the reflecting plate that reflected light is guided to photo detector.
Background technology
Known have a kind of displacement transducer, based on range of triangle mode, to detecting thing, detects.
This displacement transducer has: light-projecting component, its by irradiation to detecting thing; Sensitive lens, its light to detected material reflection carries out optically focused; And photo detector, it is to being subject to light by the light of optically focused.The light projector axle of light projector side and the optical axis that is subject to of sensitive side intersect with predetermined angular.
The 1st displacement transducer 300 shown in Figure 12 is as an example of displacement transducer.
The 1st displacement transducer 300 possesses: light-projecting component 310; Light projector lens 320; Sensitive lens 330, photo detector 340; And the box body 350 of taking in these.In addition, in Figure 12, with double dot dash line, represent sensitive lens 330 and photo detector 340.
As shown in figure 12, can know longer that the light path in box body 350 is set, it is larger that box body 350 just becomes.
For example, when adopting the longer sensitive lens 330 of focal length, the distance between photo detector 340 and sensitive lens 330 will become large.Due to the front of sensitive lens 330 with respect to detection faces 350a(box body 350) configuration obliquely, so when its focal length is elongated, photo detector 340 with from detection faces 350a towards a distant place and the mode of leaving light-projecting component 310 be configured.Therefore, what the light path in box body 350 was set is longer, and longitudinal width W Ya of box body 350 will become larger.
On the other hand, from improving the ease for use angle of displacement transducer 300, there is the requirement of pair displacement transducer 300 miniaturizations.Requirement based on such has proposed a kind of technology (with reference to patent documentation 1), by realize the miniaturization of displacement transducer 300 with baffle reflection light.
The schematic diagram of the 2nd displacement transducer 200 that uses reflecting plate 260 is also shown in Figure 12.
The 2nd displacement transducer 200 possesses: light-projecting component 210; Light projector lens 220; Reflecting plate 260, it is reflected into the light being mapped in box body 250; Sensitive lens 230, it carries out optically focused to the light being reflected; Photo detector 240; And the box body 250 of taking in these.In addition, for the ease of comparing the size of the box body 350 of the 1st displacement transducer 300 and the box body 250 of the 2nd displacement transducer 200, the light-projecting component 310 of the light-projecting component 210 of the 2nd displacement transducer 200 and light projector lens 220 and the 1st displacement transducer 300 and light projector lens 320 are illustrated respectively on the identical position in Figure 12.
In the 2nd displacement transducer 200, with reflecting plate 260, towards light-projecting component 210 lateral reflection detected materials, reflect and be injected into the light in box body 250.According to such formation, reduce longitudinal width W Yb of displacement transducer 200.
Patent documentation
Patent documentation 1 TOHKEMY 2010-48575 communique
But as shown in figure 13, displacement transducer 200,300 is arranged in the part of the detection distance L of stipulating from detection thing 900 on light projector direction of principal axis.
On the other hand, the indoor various device that is provided with electric wiring, air conditioning duct, manufacturing equipment, air-conditioning equipment etc. of Cong factory and research department, and need to fully guarantee the space angle for operation indoor operator, have and be difficult to guarantee the situation for the space of configuration bit displacement sensor 200,300.Therefore,, from improving the viewpoint of the ease for use of displacement transducer 200,300, require to dwindle the depth width W Z of displacement transducer 200,300.But, have such truth, for displacement transducer 200,300, also there is no to propose the motion relevant to such requirement.
Utility model content
The purpose of this utility model is to provide a kind of depth width less displacement transducer.
(1) displacement transducer that solves above-mentioned problem possesses: light-projecting component, and it is towards detecting thing emergent light; Sensitive lens, it is to being carried out optically focused by the light of described detection thing reflection; Reflecting plate, its reflection is by the light of described sensitive lens; Photo detector, it has sensitive surface, and this sensitive surface is accepted by the light of described baffle reflection, and the output signal corresponding with the position of light on described sensitive surface; And box body, it takes in described light-projecting component, described sensitive lens, described reflecting plate and described photo detector, and there is detection faces, this detection faces makes from the light transmission of described light-projecting component outgoing and makes by the light transmission of described detection thing reflection, and described reflecting plate is towards described light-projecting component side and the light that is subject to optical axis towards described detection faces lateral reflection along described sensitive lens.
According to this, form, described reflecting plate is towards described light-projecting component side and the light that is subject to optical axis towards described detection faces reflection along described sensitive lens.Therefore, displacement transducer of the present utility model is with reflecting plate towards described light-projecting component side and reflect towards the rear along the displacement transducer light that is subject to optical axis, that relate to comparison of described sensitive lens and compare, and the distance between detection faces and photo detector diminishes., according to this, form, the depth width of displacement transducer can be set as being less than the displacement transducer that relates to comparison.
(2) preferably, in the displacement transducer of above-mentioned formation, described photo detector has the profile of rectangular parallelepiped, and described photo detector is configured to, and the length direction of photo detector tilts with respect to described detection faces on the depth direction of this displacement transducer.
According to this, form, displacement transducer of the present utility model with so that the displacement transducer that the length direction of the photo detector mode vertical with respect to detection faces configures is compared, can make the more close detection faces side in rear end of photo detector.Thus, can reduce the depth width of box body.
(3) preferably,, in the displacement transducer of above-mentioned formation, the intermediate point of described photo detector is positioned at than described light-projecting component more by detection faces side.
According to this formation, displacement transducer of the present utility model and intermediate point with photo detector (distance at the two ends in the length direction apart from photo detector equates and the equidistant point at the two ends in the Width apart from photo detector) are positioned at the displacement transducer that more configures photo detector by the mode at rear than light-projecting component to be compared, and photo detector is configured in detection faces side.Therefore, the depth size decreases of box body.
(4) preferably, in the displacement transducer of above-mentioned formation, described displacement transducer further possesses holder, and this holder keeps described sensitive lens, described reflecting plate and described photo detector, and described holder has: base portion; And ring portion, it is arranged on described base portion, and described holder is fixed on described box body, and described ring portion has: perisporium, it forms 1 ring; Sensitive lens maintaining part, it is arranged on this perisporium and keeps described sensitive lens; Reflecting plate maintaining part, it is arranged on described perisporium and keeps described reflecting plate; And photo detector maintaining part, it is arranged on described perisporium and keeps described photo detector.
Also sensitive lens, reflecting plate and photo detector can be separately positioned on the base portion of holder.For example, the photo detector maintaining part that keeps respectively the sensitive lens maintaining part of sensitive lens, the reflecting plate maintaining part that keeps reflecting plate and maintenance photo detector to arrange with respect to pronathous mode.But these maintaining parts are due to outstanding from base portion separately, so have the possibility of distortion or vibration.If maintaining part distortion or vibration, just have the worry that detects the detection error increase of thing or the error detection of thing occurs to detect.
In this, according to above-mentioned formation, sensitive lens maintaining part, reflecting plate maintaining part and photo detector maintaining part are set on the perisporium of ring portion.Ring portion is compared with the teat being separately positioned on base portion, is not easy to produce vibration and distortion.The error detection generation that therefore, can suppress to detect the detection error increase of thing or detect thing.
(5) preferably, in the displacement transducer of above-mentioned formation, in described holder, be provided with a plurality of through holes, in this through hole, insert and be connected with for described holder being fixed on to the parts of concluding on described box body, at least 1 through hole in a plurality of described through holes is arranged on the inner side of described ring portion.
According to this, form, by through hole being arranged on to the formation of ring portion inner side, it is compared with the formation that through hole is arranged on to ring portion outside, can make the profile of base portion diminish.Thus, can realize the miniaturization of displacement transducer.
(6) other displacement transducers that solve above-mentioned problem possess: light-projecting component, and it is towards detecting thing emergent light; Reflecting plate, it is to being reflected and optically focused by the light of described detection thing reflection; Photo detector, it has sensitive surface, and this sensitive surface is accepted by the light of described baffle reflection, and the output signal corresponding with the position of light on described sensitive surface; And box body, it takes in described light-projecting component, described reflecting plate and described photo detector, and there is detection faces, this detection faces makes from the light transmission of described light-projecting component outgoing and makes by the light transmission of described detection thing reflection, and described reflecting plate is towards described light-projecting component side and towards described detection faces lateral reflection along the light that is subject to optical axis.
According to this, form, with the reflecting plate with reflection function and light-focusing function, towards light-projecting component side and towards detection faces lateral reflection along the light that is subject to optical axis.Therefore, displacement transducer of the present utility model with by reflecting plate towards light-projecting component side and reflect towards the rear along compared by displacement transducer light, that relate to comparison of optical axis, the distance between detection faces and photo detector diminishes., according to this, form, the depth width of displacement transducer can be set as being less than the displacement transducer that relates to comparison.
The depth size of the displacement transducer of above-mentioned formation can diminish.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the displacement transducer of 1 embodiment of the present utility model.
Fig. 2 is the cut-open view along the A-A line of Fig. 1.
Fig. 3 is the stereographic map of cartridge body of the displacement transducer of above-mentioned embodiment.
Fig. 4 is the stereographic map of internal structure body of the displacement transducer of above-mentioned embodiment.
Fig. 5 is the stereographic map that has unloaded the internal structure body of circuit substrate.
Fig. 6 is the stereographic map of holder of the displacement transducer of above-mentioned embodiment.
Fig. 7 is the stereographic map of front cover of the displacement transducer of above-mentioned embodiment.
Fig. 8 (a) means the schematic diagram of configuration of optics of the displacement transducer of above-mentioned embodiment.
Fig. 8 (b) means the relatively schematic diagram of the configuration of the optics of the displacement transducer of structure.
Fig. 9 means the vertical view of the configuration relation of light projector lens and light-projecting component.
Fig. 9 (a) is the vertical view that detects the short machine of distance.
Fig. 9 (b) detects distance for the vertical view of the machine of moderate-length.
Fig. 9 (c) is the vertical view that detects the machine of distance.
Figure 10 means the schematic diagram for the demonstration variation pattern of display part existing displacement transducer, based on predetermined operation.
Figure 10 (a) means the schematic diagram through the picture of display part constantly in regulation.
Figure 10 (b) means the schematic diagram through the picture of display part constantly in regulation.
Figure 10 (c) means the schematic diagram through the picture of display part constantly in regulation.
Figure 10 (d) means the schematic diagram through the picture of display part constantly in regulation.
Figure 11 means the schematic diagram for the demonstration variation pattern of the display part displacement transducer of above-mentioned embodiment, based on predetermined operation.
Figure 11 (a) means the schematic diagram through the picture of display part constantly in regulation.
Figure 11 (b) means the schematic diagram through the picture of display part constantly in regulation.
Figure 11 (c) means the schematic diagram through the picture of display part constantly in regulation.
Figure 11 (d) means the schematic diagram through the picture of display part constantly in regulation.
Figure 11 (e) means the schematic diagram through the picture of display part constantly in regulation.
Figure 11 (f) means the schematic diagram through the picture of display part constantly in regulation.
Figure 12 means the schematic diagram of configuration relation of the optics of existing displacement transducer.
Figure 13 means that existing displacement transducer is with respect to the schematic diagram that detects the setting position of thing.
Symbol description
1 ... displacement transducer, 1x ... detection faces, 2 ... light-projecting component, 2a ... lead-in wire, 3 ... light projector lens, 4 ... sensitive lens, 5 ... reflecting plate, 6 ... photo detector, 6a ... sensitive surface, 6b ... rear end, 7 ... circuit substrate, 8 ... connection substrate, 8a ... through hole, 9 ... cable, 10 ... holder, 11 ... base portion, 11a ... the 1st through hole, 11b ... the 2nd through hole, 12 ... the 1st maintaining part, 12a ... hole portion, 12b ... peristome, 12c ... bearing surface, 12d ... rear end face, 13 ... the 2nd maintaining part, 13a ... projection, 13b ... projection, 14 ... ring portion, 14a ... sensitive lens maintaining part, 14b ... reflecting plate maintaining part, 14c ... photo detector maintaining part, 14d ... rearward end, 14w ... perisporium, 20 ... light-projecting component contact maker, 21 ... trunk, 21a ... end face, 21b ... section portion, 22 ... top ends, 23 ... light projector hole, 30 ... light projector lens contact maker, 31 ... recess, 32 ... lens fitting portion, 40 ... front cover, 41 ... lid main body, 42 ... protuberance, 50 ... box body, 51 ... cartridge body, 51a ... side opening oral area, 52 ... side plate, 53 ... anterior, 54 ... top, 54a ... side, 55 ... bottom, 56 ... rear portion, 56a ... after-opening portion, 57 ... sidepiece, 57a ... the 1st screw, 57b ... the 2nd screw, 58 ... tapered portion, 59 ... lid fitting portion, 59a ... light projector peristome, 59b ... be subject to light peristome, 59c ... bottom, 59d ... slot part, 60 ... display device, 61 ... display part, 61a ... 47 n segment display ns, 62 ... display lamp, 63 ... switch, 70 ... internal structure body, 100 ... displacement transducer, 102 ... light-projecting component, 103 ... light projector lens, 104 ... sensitive lens, 105 ... reflecting plate, 106 ... photo detector, 150 ... box body, 161 ... display part, 161a ... 47 n segment display ns, 161b ... 47 n segment display ns, 200 ... displacement transducer, 210 ... light-projecting component, 220 ... light projector lens, 230 ... sensitive lens, 240 ... photo detector, 250 ... box body, 260 ... reflecting plate, 300 ... displacement transducer, 310 ... light-projecting component, 320 ... light projector lens, 330 ... sensitive lens, 340 ... photo detector, 350 ... box body, 350a ... detection faces, 900 ... detect thing.
embodiment
(displacement transducer)
With reference to Fig. 1-Fig. 8, one example of the displacement transducer 1 of present embodiment is described.
As shown in Figure 1, displacement transducer 1 is constituted as, light projector axle
a and be subject to optical axis
b intersects with predetermined angular θ.Displacement transducer 1 has detection distance L, and this detection distance L is suitable for detecting detecting thing.Detecting distance L is light projector axle
a and be subject to optical axis
distance between the 1x of the detection faces of the intersection point of b and displacement transducer 1.In addition, light projector axle
a vertically extends with respect to detection faces 1x.
The detection faces 1x of displacement transducer 1 comprises light projector axle
the intersection point in the front of a and box body 50 (front of front cover 40), and be perpendicular to light projector axle
the surface of a.
Displacement transducer 1 is arranged on from detecting thing and leaves the part that detects distance L.Displacement transducer 1 is using the position of leaving detection distance L from detection faces 1x as reference position, thus the addendum modification of detection from the reference position of detection thing.
In addition, in explanation afterwards, will be for along light projector axle
a direction, and the direction of light outgoing is called " the place ahead ", and the direction contrary with it is called to " rear ".Will be in comprising light projector axle
a and be subject to optical axis
in the plane of b, and along perpendicular to light projector axle
the direction of the line of a is called " above-below direction ", wherein, by be called " top " towards the direction of light-projecting component 2 from photo detector 6, the direction contrary with it is called to " below ".The direction vertical with above-below direction and fore-and-aft direction is called to " left and right directions ", will, left-hand side when (using the front of displacement transducer 1 as front) is called " left " from front, right-hand side be called " right-hand ".The width of the displacement transducer on above-below direction 1 is called to " longitudinally width W Y ", the width of the displacement transducer on left and right directions 1 is called " transverse width WX ".The width of the displacement transducer on fore-and-aft direction 1 is called to " depth width W Z ".
As shown in Figure 2, displacement transducer 1 possesses: light-projecting component 2; Light projector lens 3; Sensitive lens 4; Reflecting plate 5; Photo detector 6; Holder 10, it keeps these opticses; Circuit substrate 7(is with reference to Fig. 4); Box body 50(is with reference to Fig. 1), it takes in these opticses and circuit substrate 7; Front cover 40, it is arranged on the front of box body 50; And display device 60.
Light-projecting component 2 consists of laser diode etc.Light projector lens 3 are configured in the place ahead of light-projecting component 2.
The light of 4 pairs of detected material reflections of sensitive lens carries out optically focused.Sensitive lens 4 is subject to optical axis with it
b is with respect to light projector axle
the mode that a intersects configures.Specifically, sensitive lens 4 configures obliquely with respect to detection faces 1x.
Reflecting plate 5 sees through sensitive lens 4 and incides the light in box body 50 towards photo detector 6 reflections.Reflecting plate 5 is configured in the rear of sensitive lens 4.
Photo detector 6 detects the position of the light on sensitive surface 6a.Photo detector 6 is such as by cmos image sensor (CMOS(Complementary Metal-Oxide Semiconductor) image sensor), ccd image sensor (CCD(Charge Coupled Device) image sensor), PSD(Position Sensitive Detector) etc. formation.
Photo detector 6 has profile long, rectangular parallelepiped in 1 direction.
Photo detector 6 be configured on the above-below direction of displacement transducer 1, between light projector lens 3 and sensitive lens 4.The length direction DL of photo detector 6 above tilts with respect to detection faces 1x at the fore-and-aft direction (depth direction) of displacement transducer 1.The intermediate point CX of photo detector 6 is positioned at than the more close detection faces 1x side in the position of light-projecting component 2 (position of luminous point).Preferably, the intermediate point CX of photo detector 6 is positioned at the more close the place ahead of intermediate point CM than reflecting plate 5.In addition, the intermediate point CX of photo detector 6 is defined as that distance in the two ends apart from length direction DL equates and apart from the equidistant point at the two ends of Width.
Display device 60 has: display part 61, and it shows that expression detects the displacement information of addendum modification of thing or the set information of the setting content of set information or expression displacement transducer 1 etc.; Display lamp 62, it represents the operating state of light-projecting component 2; And switch 63, it is for setting pattern of displacement transducer 1 etc.Display part 61 is such as consisting of 7 n segment display ns etc.
Box body 50 is rectangular when seeing from front, rectangular while (seeing box body 50 from the viewpoint of the top of box body 50) overlooking, and is the pentagon that has cut away 1 jiao, rectangle when (while seeing box body 50 from the left of box body 50 or right-hand viewpoint) from the side.
Box body 50 possesses: cartridge body 51, and it keeps holder 10; Tabular side plate 52, its to side peristome 51a(with reference to Fig. 3) stop up, this side opening oral area 51a is arranged on the side of cartridge body 51.Side plate 52 forms the side, right side of box body 50.
The stereographic map of cartridge body 51 shown in Figure 3.
Cartridge body 51 has: anterior 53; Tabular top 54; Tabular bottom 55; Rear portion 56; Sidepiece 57; And tapered portion 58, it connects between 55Ji rear portion, bottom 56.
Front portion 53, top 54, bottom 55, rear portion 56 and tapered portion 58 arrange in the mode vertical with sidepiece 57.Front portion 53, top 54, rear portion 56, tapered portion 58 and bottom 55 are sequentially connected to each other with this.
Top 54 forms the upper surface of box body 50.
Preferably, top 54 is constituted as smooth.At this smooth, refer to the plane P that do not have from the comprising side 54a structure of outstanding projection upward.For example, at this, smoothly comprise planar configuration, concave curved surface structure, be arranged on than the plane P planar configuration of lower part more.According to this structure, in the arrangement of 2 displacement transducers 1, can be so that the mode that the side 54a on top 54 contacts with each other configures 2 displacement transducers 1.
Anterior 53, be provided with and cover fitting portion 59, in this lid fitting portion 59, embed front cover 40.
Bottom 59c at lid fitting portion 59 is provided with: light projector peristome 59a, and it is for being mapped to outside box body 50 light of light-projecting component 2 outgoing; And being subject to light peristome 59b, it is for being injected in box body 50 light of detected material reflection.
At lid fitting portion 59, in the mode along periphery, be provided with slot part 59d.At slot part, 59d is coated with bonding agent, and this bonding agent is for being bonded at front cover 40 front portion 53 of box body 50.The periphery of front cover 40 and box body 50 stick together by bonding agent.
Sidepiece 57 forms the left lateral sides of box body 50.
Inside surface at sidepiece 57 is provided with 2 screws (hereinafter referred to as " the 1st screw 57a " and " the 2nd screw 57b "), and this screw is used for concluding holder 10.The 1st screw 57a is configured in sensitive side, and the 2nd screw is configured in light projector side.
At rear portion, 56 56a of after-opening portion that are provided with rectangle embed display device 60 in the 56a of this after-opening portion.
In tapered portion 58, cable 9(is installed with reference to Fig. 2)., cable 9 is configured in photo detector 6 sides.
The stereographic map of internal structure body 70 shown in Figure 4.
Internal structure body 70 possesses holder 10 and the circuit substrate 7 of mounting optical component.
Circuit substrate 7 has: the driving circuit of light-projecting component 2; The control circuit of display device 60; Processing is input to the treatment circuit of the set information in display device 60; And the signal processing circuit of the output signal of processing photo detector 6 etc.
Circuit substrate 7 is configured in the right surface (when holder 10 is incorporated in box body 50, being configured in the surface on right side) of holder 10.
Circuit substrate 7 and light-projecting component 2 are connected to each other by connection substrate 8.
The internal structure body 70 that unloads circuit substrate 7 shown in Figure 5.
Light-projecting component 2 is installed in light-projecting component colligator 20, and is maintained in holder 10 by this light-projecting component contact maker 20.
Light-projecting component contact maker 20 has (with reference to Fig. 2): trunk 21 cylindraceous, and it keeps light-projecting component 2; And top ends 22, its end face 21a from trunk 21 is outstanding.In top ends 22, be provided with the light projector hole 23 that light passes through.Inner side at trunk 21 is provided with (with reference to Fig. 2) section 21b of portion, and it is for positioning light-projecting component 2.
Light projector lens 3 are installed in light projector lens contact maker 30, and are maintained in holder 10 by this light projector lens contact maker 30.
Side at light projector lens contact maker 30 is provided with recess 31.Rear portion at light projector lens contact maker 30 is provided with lens fitting portion 32, in this lens fitting portion 32, embeds light projector lens 3.
Holder 10 shown in Figure 6.
Holder 10 has: base portion 11; The 1st maintaining part 12, it keeps light-projecting component contact maker 20; The 2nd maintaining part 13, it keeps light projector lens contact maker 30; And ring portion 14.
On base portion 11, be provided with 2 through holes (following, these through holes are called to " the 1st through hole 11a " and " the 2nd through hole 11b "), in this through hole, insert the parts of concluding of logical screw etc.The the 1st and the 2nd through hole 11a, 11b are respectively to arrange with the 1st and the 2nd screw 57a, mode that 57b is corresponding.Holder 10 use are concluded parts and are fixed in box body 50.
The 1st through hole 11a is arranged on the inner side of the ring portion 14 on base portion 11.
The 2nd through hole 11b is arranged on the outside of the ring portion 14 on base portion 11.
Holder 10 is concluded on box body 50 by the screw in the 2nd screw 57b that inserts logical the 1st through hole 11a and be screwed into the screw in the 1st screw 57a and insert logical the 2nd through hole 11b and be screwed into box body 50.
The 1st maintaining part the 12, the 2nd maintaining part 13 and ring portion 14 are arranged on the surface of base portion 11 1 sides.
The 1st maintaining part 12 keeps light-projecting component contact maker 20, so that it can be towards light projector axle
a direction moves.Light-projecting component contact maker 20 is under the state being installed in the 1st maintaining part 12, at light projector axle
a direction positions, and with bonding agent, is fixed after completing this adjustment.
The 1st maintaining part 12 has: the 12a(of hole portion is with reference to Fig. 6), embed therein the trunk 21 of light-projecting component contact maker 20; And peristome 12b, it is communicated with the 12a of this hole portion and towards front openings.The top ends 22 of light-projecting component contact maker 20 is inserted and is led in this peristome 12b.
In the inside of the 1st maintaining part 12, be provided with bearing surface 12c(with reference to Fig. 2), the end face 21a butt of this bearing surface 12c and light-projecting component contact maker 20.In the time of in light-projecting component contact maker 20 is inserted into the 1st maintaining part 12, the end face 21a of light-projecting component contact maker 20 is pressed and is connected on this bearing surface 12c.Thus, light-projecting component contact maker 20 is positioned with respect to holder 10.
The 2nd maintaining part 13 consists of 2 projection 13a, 13b, and these 2 projection 13a, 13b keep it to clip the mode of light projector lens contact maker 30.Light projector lens contact maker 30 with light projector axle
removable and the tiltable mode of the in-plane that a is vertical (especially left and right directions) is installed in the 2nd maintaining part 13.Light projector lens contact maker 30, under the state being installed in the 2nd maintaining part 13, positions to degree of tilt or on left and right directions, and with bonding agent, is fixed after completing this adjustment.
Ring portion 14 has: perisporium 14w, and it forms 1 ring; Sensitive lens maintaining part 14a, it is arranged on this perisporium 14w and goes up and keep sensitive lens 4; Reflecting plate maintaining part 14b, it is arranged on this perisporium 14w and goes up and keep reflecting plate 5; And photo detector maintaining part 14c, its maintenance is arranged on this perisporium 14w and goes up and keep photo detector 6.
Reflecting plate maintaining part 14b is with along being subject to optical axis
the incident light of b keeps reflecting plate 5 towards light-projecting component 2 and towards the mode of detection faces 1x reflection.In other words, reflecting plate maintaining part 14b comprises along being subject to optical axis
the intersection point of the reflecting surface of the incident light of b and reflecting plate 5, and be reflected to than the imaginary plane Pv parallel with detection faces 1x mode more on the front and keep reflecting plate 5 with light.
Photo detector maintaining part 14c is with along being subject to optical axis
the mode that b incident the light that is reflected plate 5 reflection incide sensitive surface 6a central part keeps photo detector 6.Photo detector 6 configures in the mode tilting with respect to detection faces 1x.More preferably, photo detector 6 is configured in and is positioned at than the rearward end 14d of ring portion 14 mode more on the front with the rear end 6b of photo detector 6.
Front cover 40 shown in Figure 7.
Front cover 40 has: transparent lid main part 41, and it covers light projector peristome 59a and is subject to light peristome 59b; And protuberance 42, it is outstanding in the mode corresponding with light projector peristome 59a.Lid main part 41 and protuberance 42 are integrally formed by transparent resin.
Protuberance 42 is constituted as, and with the similar shape of shape of light projector peristome 59a, and is constituted as, and can be embedded into the size in light projector peristome 59a.Between light projector peristome 59a and protuberance 42, be provided with gap as shown in Figure 2.
With reference to Fig. 8, the arrangement of the optics of displacement transducer 1 is described.
The arrangement of the optics of the displacement transducer 1 of Fig. 8 (a) expression present embodiment.Fig. 8 (b) represents to relate to the arrangement of optics of the displacement transducer 100 of comparison.
Relate to the displacement transducer 100 of comparison, same with the displacement transducer 1 of present embodiment, possess: light-projecting component 102; Light projector lens 103; Sensitive lens 104; Reflecting plate 105; Photo detector 106; And the box body 150 of taking in these opticses.This displacement transducer 100 has the arrangement of existing reflecting plate 105.According to the arrangement of existing reflecting plate 105, towards light-projecting component 102 sides and towards the rear reflection quilt reverberation reflect and incide the light in box body 150.In the situation that forming like this, photo detector 106 is configured in than reflecting plate 105 more by rear.In the situation that forming like this, as shown in Figure 8 (b) shows, at the rear of light-projecting component 102, produce remaining space Sa.And, according to range of triangle principle, between light projector lens 103 and sensitive lens 104, separated more than predetermined distance.Therefore, even in the region surrounding with light-projecting component 102, light projector lens 103, sensitive lens 104 and reflecting plate 105, also can exist and there is no the space of arrangement components (hereinafter referred to as " space S x between optics ").
In the present embodiment, towards light-projecting component 2 sides and be reflected thing towards detection faces 1x lateral reflection and reflect and incide the light in box body 50.And, photo detector 6 is configured in to the position that can receive this light., photo detector 6 being configured in to optics sees in space S x.According to such formation, as shown in Figure 8 (a), displacement transducer 1 is compared with displacement transducer 100 relatively, and depth width W Z will diminish.
, if when photo detector 6 is configured between optics in space S x, has and result from space S x between this optics and do not there is sufficient size, and restriction keeps the situation of thickness of the maintaining part of photo detector 6.For example, detection distance L is being set as more in short-term, according to detecting distance L, space S x between optics is being narrowed down.
So, can consider to keep the maintaining part of photo detector 6 to be set as thinner.But, in this case, because the intensity of maintaining part is low, so can make photo detector 6 easily produce vibration.For example, displacement transducer 1 is being arranged on, while being provided with in the factory of the device that the vibration of stamping machine etc. is larger, is having that maintaining part produces vibration and worry that the detection error of displacement transducer 1 is increased.If maintaining part is thinner, can make maintaining part because of thermal capacitance yielding.For example, when displacement transducer 1 is arranged in the factory that room temperature is higher, just have maintaining part because of the yielding worry of thermal capacitance.The original position of the photo detector 6 when displacement transducer 1 is set and degree of tilt produce skew, and the output valve of photo detector 6 is changed from initial value.Therefore, have the worry of the error detection generation that detects thing.
For such worry, in the present embodiment, as shown in Figure 5, sensitive lens 4, reflecting plate 5 and photo detector 6 have been installed in ring portion 14.Ring structure is not compared with there is no interconnective maintaining part, be not easy to produce vibration and because of hot distortion also less.Therefore, compare with the maintenance structure that with respect to sensitive lens 4, reflecting plate 5 and photo detector 6 maintaining part (from the outstanding maintaining part of base portion 11) is set respectively, its thickness can be set as less.
According to such formation, even in the situation that between optics space S x be too narrow to the degree of the thickness of the maintaining part that can not guarantee to keep photo detector 6, also photo detector 6 can be configured between optics in space S x.And, can also suppress because of the detection error of vibration and low because of the accuracy of detection of thermal deformation.
(the common structure between machine)
Below, the common structure of displacement transducer 1 is described.
Displacement transducer 1 with respect to the allocation position that detects thing because a variety of causes is limited.For example, in plant produced line, due to the state that arranges of factory's distribution or pipe arrangement etc., and the setting position of displacement transducer 1 is limited.Due to requirement of the miniaturization of plant produced line etc., also have the confined situation of setting position of displacement transducer 1.Consideration from ambient light or electromagnetic impact etc., also has the confined situation of setting position that makes displacement transducer 1.Consider such reason, thereby for displacement transducer 1, prepared to detect the different machine of distance L.Except detecting distance L difference, there is syntectonic a plurality of machine altogether and form one group (following, to be called " product family ").
In these product families, between machine, realized commonization of parts.This is because realize the rationalization of manufacture by reduce the variety of components adopting in product family.Specifically, at least 1 parts in light-projecting component 2, light projector lens 3, sensitive lens 4, reflecting plate 5, photo detector 6, circuit substrate 7 and box body 50 are changed jointly.In addition, in the example of following explanation, these all parts (7 kinds of parts) are all changed jointly.
In these product families, degree of tilt and collocation method by the optics for each machine change, thereby make to detect distance L difference.
In these product families, in holder 10, after mounting optical component, for the optimization of optical characteristics, and light projector lens 3 are positioned.Be positioned at light projector axle
a direction (being called " Z-direction " in location explanation), with light projector axle
in the X-direction that a is vertical and Y direction, carry out.In addition, X-axis and Y-axis are assumed to be orthogonal.
Light projector axle
the location of a direction refers to adjusts light-projecting component 2 and light projector lens 3 spacings.Distance adjustment between light-projecting component 2 and light projector lens 3 can be undertaken by the movement of light-projecting component 2, but for can mobile light-projecting component 2, need to for example, by thering is flexual substrate (, flexible (flexible) substrate) etc., connect light-projecting component 2 and circuit substrate 7.Owing to having, flexual substrate is more expensive, so light-projecting component 2 is connected with circuit substrate 7 use rigidity (rigid) substrates.Therefore, can not carry out the location of the movement based on light-projecting component 2.
But, when carrying out the location of Z-direction, X-direction and Y direction with light projector lens 3, have following problem.
The location of X-direction and Y direction is because its position adjusting range is less, thus can adjust with milscale etc., but the location of Z-direction because position adjusting range is larger, so adjust with milscale etc., the activity duration will be elongated.Therefore, there is the requirement of wanting to shorten the positioning operation time.
, in thering is product family common optics and that detect the displacement transducer 1 that distance L is different, shortening the positioning operation time becomes problem.
In order to solve such problem, above-mentioned displacement transducer 1 has such internal structure: without flexible substrate, and the location that can carry out for X-direction and Y direction with light projector lens 3; And the location of carrying out for Z-direction with light projector lens 3.Hereinafter, to thering is so in-built internal structure body 70, describe.
The internal structure body 70 that unloads circuit substrate 7 shown in Figure 9.
Vertical view in the product family of Fig. 9 (a) expression displacement transducer 1, that detect the short machine A of distance L.Vertical view in the product family of Fig. 9 (b) expression displacement transducer 1, that detect the machine B that distance L is moderate-length.Fig. 9 (c) represent in the product family of displacement transducer 1, the vertical view of the long machine C of detection distance L.
In addition, in the following description, by detecting the short displacement transducer 1 of distance L, be called " displacement transducer 1 of machine A ", by detecting the displacement transducer 1 that distance L is moderate-length, be called " displacement transducer 1 of machine B ", by detecting the displacement transducer 1 that distance L is long, be called " displacement transducer 1 of machine C ".
The displacement transducer 1 of machine A, machine B, machine C has respectively different lenticular spacings from, this lenticular spacing from being distance between light projector lens 3 and sensitive lens 4.Specifically, with the order of machine A, machine B, machine C, it is large that the distance between lens becomes.
The displacement transducer 1 of machine A, machine B, machine C has respectively different lens-inter-element spacings, and this lens-inter-element spacing is the distance between light-projecting component 2 and light projector lens 3.Specifically, with the order of machine A, machine B, machine C, as shown in Fig. 9 (a)-Fig. 9 (c), lens-inter-element spacing shortens.Lens-inter-element spacing of machine A, machine B, machine C is respectively distance L XA, distance L XB, distance L XC.
Corresponding with such structure, each machine A-C holder 10 separately make lenticular spacing from and lens-element distances all different.On the other hand, it is common keeping the structure of optics., in each machine A-C, the structure of light-projecting component contact maker 20, the structure of light projector lens contact maker 30, the structure of the 1st maintaining part 12, the 2nd maintaining part 13(but, except light projector axle
the length dimension La(of a direction is with reference to Fig. 9 (a))) structure and the structure of ring portion 14 all identical.
For each machine A-C, the 2nd maintaining part 13 is all configured in the equidistant position of the reference position (for example, the central point of the 1st screw 57a) apart from base portion 11.
As shown in Fig. 9 (a)-Fig. 9 (c), the 1st maintaining part 12 is according to the lens-inter-element spacing of machine, and makes the 1st maintaining part 12 all different with respect to the position of base portion 11.
As shown in Fig. 9 (a)-Fig. 9 (c), the rear end face 12d of the 1st maintaining part 12 is the size of the lens-inter-element spacing of machine no matter, is all configured in apart from the equidistant position of the reference position of base portion 11., the distance between light projector lens 3 and the rear end face 12d of the 1st maintaining part 12 is set to predetermined distance LXD.
According to such formation, be configured in no matter machine of connection substrate on the rear end face 12d of the 1st maintaining part 12 8, be all configured in the equidistant position of base portion 11.Therefore, circuit substrate that connection substrate 8 is connected 7 is machine no matter, can be configured to common shape.
According to the structure of such holder 10, there is following effect.
The light projector lens contact maker 30 that keeps light projector lens 3, because the mode to be clipped by 2 projection 13a, 13b of the 2nd maintaining part 13 is held, thereby can position the position of light projector lens 3 in X-direction and Y direction (or degree of tilt).
The light-projecting component contact maker 20 that keeps light-projecting component 2, due to can be along Z direction (light projector axle in the 1st maintaining part 12
a direction) mobile mode is held, so can position the position of light-projecting component 2 in Z-direction.
The bearing surface 12c that the end face 21a of light-projecting component contact maker 20 by light-projecting component contact maker 20 touches the 1st maintaining part 12 is positioned.Therefore, light-projecting component 2 is positioned in the roughly assigned position in Z-direction.Therefore, the positioning operation of the Z-direction of light-projecting component 2 is compared and is alleviated with existing structure (not this structure).
In the situation that light-projecting component 2 is moved by the location of Z-direction, make light-projecting component contact maker 20 or light-projecting component 2 is moved, and mobile link substrate 8 not.Specifically, the lead-in wire 2a of light-projecting component 2 inserts and leads in the through hole 8a of connection substrate 8.According to this, form, even if make displacement transducer 1 there is light-projecting component 2, move the structure that does not also make connection substrate 8 move.In addition, after completing the location of Z-direction, the lead-in wire 2a of light-projecting component 2 is welded in the through hole 8a of connection substrate 8.
So, according to above-mentioned formation, when the location of carrying out by the Z-direction of light-projecting component 2, connection substrate 8 can be mobile from assigned position (the rear end face 12d of the 1st maintaining part 12).Therefore, as connection substrate 8, can use rigid substrates.
(setting means of display part)
As the operation of the set condition of change bit displacement sensor 1, there is " long by operation " of switch 63.
For example, in order to suppress because unconsciously operating, the setting content of displacement transducer 1 to be changed, make sometimes displacement transducer 1 possess " locking pattern " function." locking pattern " even if be with for example, according to normal switching manipulation (, 1 second with interior pressing operation), also can not change the pattern that the mode of the setting content that is set at displacement transducer 1 is set." long by operation " of above-mentioned explanation is used to the setting operation of such " locking pattern ".
" long by operation " length by for example stipulated time is by completing its operation., by the continuous length of stipulated time, by the pattern of completing, set.But such " long by operation " has following problem.Hereinafter this problem is described.
The demonstration variation pattern of the display part 161 by existing " long by operation " shown in Figure 10.
The picture of the display part 161 when Figure 10 (a) expression displacement transducer 1 normally moves.
Normal operation refers to does not carry out the situation of setting operation to displacement transducer 1, and the action while representing to carry out the detection that detects thing.At this moment, in the picture of display part 161, show to detect the information (information while normally moving) of the addendum modification etc. of thing.In this example, 47 n segment display n 161a by left side show the 1st information, and 47 n segment display n 161b by right side show the 2nd information.
Figure 10 (b) is illustrated in the picture of the display part 161 while carrying out " long by operation ".The picture of the display part 161 of the picture of display part 161 at this moment when normal is identical.
Figure 10 (c) is illustrated in the picture of the display part 161 of stipulated time while above continuing push switch 63.This picture represents to complete the pattern setting by " long by operation ".Operator can complete according to this picture in affirmation mode setting.
Figure 10 (d) has been illustrated in after mode shifts, the picture of the display part 161 when displacement transducer 1 recovers normal operation.
According to this picture, operator can recover normal operation by acknowledgement bit displacement sensor 1.
About so existing display part 161, the picture of the display part 161 of the picture of the display part 161 in " long by operation " when normally moving is identical.
But about such expression mode, operator can not confirm whether correctly carried out " long by operation " " long by operation " from this picture.
Although have such situation, be that operator does not carry out " long by operation " more than the stipulated time, think that " long by operation " carry out by mistake, and stop halfway " long by operation ".In this case, although displacement transducer 1 does not carry out mode altering, operator thinks that the pattern of completion bit displacement sensor 1 is set.
From such viewpoint, preferably, in " long by operation ", operator can be confirmed whether suitably to have carried out its operation.
So, about the displacement transducer 1 of present embodiment, in " long by operation ", in the picture of display part 61, show and " long by operation " corresponding pattern and the set condition of pattern thereof.
In " long by operation ", take and allow operator confirm that the elapsed time of " long by operation " is object, along with the elapsed time, make display mode change.
Displacement transducer 1 for present embodiment shown in Figure 11, the demonstration variation pattern of the display part 61 based on " long by operation ".
This display part 61 has 47 n segment display n 61a that are configured in left side and 47 n segment display n 61b that are configured in right side.
Figure 11 (a) represents the picture of the display part 61 of displacement transducer 1 when normal operation.
At this moment, in the picture of display part 61, the 1st information when 47 n segment display n 61a by left side show normal operation, the 2nd information when 47 n segment display n 61b by right side show normal operation.
The picture of the display part 61 when Figure 11 (b) expression starts for " long by operation " of mode altering.
At this moment, in the picture of display part 61,47 n segment display n 61a by left side carry out display mode information, and 47 n segment display n 61b by right side represent pattern set condition.3 demonstrations for pattern information, and all positions are in blink states.In addition, in " loc " expression " locking pattern " shown in Figure 11 (b), " off " represents not to be set to " locking pattern ".
Figure 11 (c) be illustrated in carry out for after " long by operation " of mode altering through the picture of the display part 61 1 second time.
The information showing in the picture of display part 61 is at this moment identical during with beginning " long by operation ".But the display mode of pattern information changes.The blink states of the section that the inverse of pattern information is the 1st is disengaged., the section of the 2nd of the positive number of pattern information flicker.Thus, the time of display part 61 till being shown to and having set reduces.
Figure 11 (d) represent to continue the exceed schedule time picture of the display part 61 when above of push switch 63.
At this moment, the blink states of the section of the 2nd of the inverse of pattern information is disengaged., the section of the 1st of positive number flicker.Thus, display part 61 represents till complete the further minimizing of time of setting.
The picture of the display part 61 when Figure 11 (e) has represented pattern setting.
At this moment, in the picture of display part 61,47 n segment display n 61a by left side carry out display mode set information, and 47 n segment display n 61b by right side carry out display mode set condition.In " ON " expression " locking pattern " shown in Figure 11 (e), set.At this moment, the flicker of all positions of formation pattern information can be disengaged.
Figure 11 (f) has been illustrated in after pattern setting, the picture of the display part 61 when displacement transducer 1 recovers normal operation.
According to this picture, operator can recover normal operation by acknowledgement bit displacement sensor 1.
Effect to such expression mode describes.
This display part 61, when " long by operation ", shows information different when normally moving.Therefore, operator shows to come acknowledgement bit displacement sensor 1 to accept " long by operation " by this.
This display part 61 shows the mode contents of " long by operation " and the pattern set condition of " long by operation " by " long by operation ".Therefore, operator can confirm the content of operation of " long by operation ", and can confirm the set condition of " long by operation ".
This display part 61, in " long by operation ", changes the display mode of the information showing in the picture of display part 61 according to the elapsed time.Specifically, display part 61 is when the operation of " long by operation " starts, and only flicker is corresponding to the section of corresponding figure place of the action required time of " long by operation ".Display part 61, according to the elapsed time of " long by operation ", reduces the figure place of the section of flicker.By such display mode, the operator that can allow execution " grow by operation " predicts the time till the setting based on its operation completes.Thus, although can suppress this setting operation person of not fulfiling assignment, think that this setting completes by mistake.
Hereinafter, the effect of present embodiment is described.
(1) in the above-described embodiment, reflecting plate 5 is towards light-projecting component 2 sides and the optical axis that is subject to towards detection faces 1x reflection along sensitive lens 4
the light of b.
According to such formation, displacement transducer 1 and reflecting plate 5 are towards light-projecting component 2 sides and reflect towards the rear the optical axis that is subject to along sensitive lens 4
displacement transducer 100 light of b, that relate to comparison is compared, and the distance between detection faces 1x and photo detector 6 diminishes., according to this, form, the depth width W Z of displacement transducer can be set as being less than the displacement transducer 100 that relates to comparison.
(2) photo detector 6 has the profile of rectangular parallelepiped.Photo detector 6 is configured to, and its length direction DL above tilts with respect to detection faces 1x at the fore-and-aft direction (depth direction) of displacement transducer 1.
According to this, form, displacement transducer 1 with so that the length direction DL mode vertical with respect to detection faces 1x configures the displacement transducer of photo detector 6 compares, can make the more close detection faces 1x side of rear end 6b of photo detector 6.Thus, can reduce the depth direction width W Z of box body 50.
(3) the intermediate point CX of photo detector 6 is positioned at than the more close detection faces 1x side of light-projecting component 2.
According to this, form, displacement transducer 1 and intermediate point CX with photo detector 6 are positioned at the displacement transducer that more configures photo detector 6 by the mode at rear than light-projecting component 2 and compare, and photo detector 6 is configured in detection faces 1x side.Therefore, the depth size decreases of box body 50.
(4) holder 10 has: base portion 11; And ring portion 14, it is arranged on base portion 11.
This ring portion 14 has: perisporium 14w, and it forms 1 ring; Sensitive lens maintaining part 14a, it is set up perisporium 14w and goes up and keep sensitive lens 4; Reflecting plate maintaining part 14b, it is arranged on perisporium 14w and goes up and keep reflecting plate 5; And photo detector maintaining part 14c, it is arranged on perisporium 14w and goes up and keep photo detector 6.
Also sensitive lens 4, reflecting plate 5 and photo detector 6 can be separately positioned on the base portion 11 of holder 10.For example, in the mode outstanding with respect to base portion 11, the photo detector maintaining part 14c that keeps the sensitive lens energy maintaining part 14a of sensitive lens 4, the reflecting plate maintaining part 14b that keeps reflecting plate 5 and maintenance photo detector 6 is set respectively.But these maintaining parts 14a-14c is owing to being independent from the outstanding maintaining part of base portion 11, so have the possibility of distortion or vibration.If maintaining part distortion or vibration, just have the worry that detects the detection error increase of thing or the error detection of thing occurs to detect.
In this, according to above-mentioned formation, sensitive lens maintaining part 14a, reflecting plate maintaining part 14b, photo detector maintaining part 14c are set on the perisporium 14w of ring portion 14.Ring portion 14 is compared with the teat being separately positioned on base portion 11, is not easy to produce vibration or distortion.Therefore the generation that, ring portion 14 can suppress to detect the detection error increase of thing or detect the error detection of thing.
(5) in holder 10, be provided with 2 through hole 11a, 11b, in this through hole 11a, 11b, insert and be common to the parts of concluding that are fixed on box body 50.A side in 2 through hole 11a, 11b (the 1st through hole 11a) is arranged on the inner side of ring portion 14.
According to this, form, compare with the formation that the 1st through hole 11a is configured in to ring portion 14 outsides, can make the profile of base portion 11 diminish.Thus, can realize the miniaturization of displacement transducer 1.
(other embodiments)
In addition, embodiment is not limited in mode described above, and the mode that for example also these can be changed to following explanation is implemented.
In the above-described embodiment, as shown in Figure 5, the perisporium 14w of ring portion 14 is constituted as, and the height H that the base portion 11 of take is benchmark becomes in the circumference constant, but this height H is not limited in this.For example, also can in a part of the perisporium 14w of ring portion 14, the height H of this part be set as lower than adjacency section, also a part of height H can be set as higher than adjacency section.In this case, also can obtain and take the effect that above-mentioned (4) be standard.
In the above-described embodiment, though be provided with light projector lens 3 on displacement transducer 1, also can be omitted.For example, in the lensed situation of light-projecting component 2 tool, can omit light projector lens 3.Fully approach the light time of directional light from light-projecting component 2 outgoing, can omit light projector lens 3.
In the above-described embodiment, in receiving system, as parts independently, be provided with sensitive lens 4 and reflecting plate 5, also these can be replaced with to 1 optics.For example, replace the optical system formed by sensitive lens 4 and reflecting plate 5, can adopt light is carried out to optically focused and by the concave mirror of its reflection.In this case, concave mirror is configured to, towards light-projecting component 2 sides and towards the light of detection faces 1x lateral reflection detected material reflection.Even form according to this, because of the reason same with above-mentioned (1), also can obtain and take the effect that the effect of above-mentioned (1) record is standard.
Claims (6)
1. a displacement transducer, wherein,
Possess: light-projecting component, it is towards detecting thing emergent light;
Sensitive lens, it is to being carried out optically focused by the light of described detection thing reflection;
Reflecting plate, its reflection is by the light of described sensitive lens;
Photo detector, it has sensitive surface, and this sensitive surface is accepted by the light of described baffle reflection, and the output signal corresponding with the position of light on described sensitive surface; And
Box body, it takes in described light-projecting component, described sensitive lens, described reflecting plate and described photo detector, and has detection faces, and this detection faces makes from the light transmission of described light-projecting component outgoing and makes by the light transmission of described detection thing reflection,
Described reflecting plate is towards described light-projecting component side and the light that is subject to optical axis towards described detection faces lateral reflection along described sensitive lens.
2. displacement transducer according to claim 1, wherein,
Described photo detector has the profile of rectangular parallelepiped,
Described photo detector is configured to, and the length direction of photo detector tilts with respect to described detection faces on the depth direction of this displacement transducer.
3. displacement transducer according to claim 1 and 2, wherein,
The intermediate point of described photo detector is positioned at than described light-projecting component more by detection faces side.
4. displacement transducer according to claim 1 and 2, wherein,
Described displacement transducer further possesses holder, and this holder keeps described sensitive lens, described reflecting plate and described photo detector,
Described holder has: base portion; And ring portion, it is arranged on described base portion, and described holder is fixed on described box body,
Described ring portion has: perisporium, and it forms 1 ring; Sensitive lens maintaining part, it is arranged on this perisporium and keeps described sensitive lens; Reflecting plate maintaining part, it is arranged on described perisporium and keeps described reflecting plate; And photo detector maintaining part, it is arranged on described perisporium and keeps described photo detector.
5. displacement transducer according to claim 4, wherein,
In described holder, be provided with a plurality of through holes, in this through hole, insert and be connected with for described holder being fixed on to the parts of concluding on described box body,
At least 1 through hole in a plurality of described through holes is arranged on the inner side of described ring portion.
6. a displacement transducer, wherein,
Possess: light-projecting component, it is towards detecting thing emergent light;
Reflecting plate, it is to being reflected and optically focused by the light of described detection thing reflection;
Photo detector, it has sensitive surface, and this sensitive surface is accepted by the light of described baffle reflection, and the output signal corresponding with the position of light on described sensitive surface; And
Box body, it takes in described light-projecting component, described reflecting plate and described photo detector, and has detection faces, and this detection faces makes from the light transmission of described light-projecting component outgoing and makes by the light transmission of described detection thing reflection,
Described reflecting plate is towards described light-projecting component side and towards described detection faces lateral reflection along the light that is subject to optical axis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-271491 | 2013-12-27 | ||
| JP2013271491A JP6381909B2 (en) | 2013-12-27 | 2013-12-27 | Displacement sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203881334U true CN203881334U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420194839.9U Expired - Lifetime CN203881334U (en) | 2013-12-27 | 2014-04-21 | Displacement sensor |
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| JP (1) | JP6381909B2 (en) |
| KR (2) | KR20150077266A (en) |
| CN (1) | CN203881334U (en) |
| DE (1) | DE102014216958B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275212A (en) * | 2018-03-15 | 2019-09-24 | 欧姆龙株式会社 | Low profile photovoltaic sensor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017105997A1 (en) * | 2017-03-21 | 2018-09-27 | Valeo Schalter Und Sensoren Gmbh | Transmission device for an optical detection device of a motor vehicle with a specific pre-assembly module, optical detection device and motor vehicle |
| CN111077510B (en) * | 2019-12-16 | 2022-12-02 | 上海禾赛科技有限公司 | Laser radar's receiving terminal and laser radar |
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| EP0071667A1 (en) * | 1981-08-11 | 1983-02-16 | Karl-Erik Morander | Device for determining the real or the virtual distance of a source of light from a measuring plane |
| JPS62176709U (en) * | 1986-04-28 | 1987-11-10 | ||
| JP2507394B2 (en) * | 1987-02-24 | 1996-06-12 | 松下電工株式会社 | Ranging device |
| DE3803818A1 (en) * | 1988-02-09 | 1989-08-17 | Bochumer Eisen Heintzmann | Device for contactless optical distance measurement in accordance with the static triangulation method |
| JPH09127406A (en) * | 1995-10-31 | 1997-05-16 | Olympus Optical Co Ltd | Range finder |
| DE19911419A1 (en) * | 1998-03-16 | 1999-10-14 | Cyberoptics Corp | Area sensor for determining dimensions of object having varying profile and degree of reflection |
| JP3587303B2 (en) * | 2001-06-26 | 2004-11-10 | オムロン株式会社 | Optical displacement sensor |
| JP4725710B2 (en) * | 2004-12-14 | 2011-07-13 | オムロン株式会社 | Sensor head of optical displacement sensor |
| US20090147239A1 (en) * | 2005-09-02 | 2009-06-11 | Neptec | Apparatus and method for tracking an object |
| JP2010048575A (en) * | 2008-08-19 | 2010-03-04 | Sharp Corp | Optical distance measuring sensor and apparatus with sensor mounted |
| JP5558091B2 (en) * | 2009-12-18 | 2014-07-23 | 株式会社キーエンス | Sensor head of optical displacement sensor and optical displacement sensor provided with the sensor head |
-
2013
- 2013-12-27 JP JP2013271491A patent/JP6381909B2/en active Active
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2014
- 2014-04-21 CN CN201420194839.9U patent/CN203881334U/en not_active Expired - Lifetime
- 2014-08-26 DE DE102014216958.5A patent/DE102014216958B4/en active Active
- 2014-08-29 KR KR1020140113782A patent/KR20150077266A/en active Application Filing
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- 2016-06-20 KR KR1020160076584A patent/KR20160077024A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275212A (en) * | 2018-03-15 | 2019-09-24 | 欧姆龙株式会社 | Low profile photovoltaic sensor |
| US11112299B2 (en) | 2018-03-15 | 2021-09-07 | Omron Corporation | Small photoelectric sensor |
| CN110275212B (en) * | 2018-03-15 | 2021-11-19 | 欧姆龙株式会社 | Small-sized photoelectric sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150077266A (en) | 2015-07-07 |
| JP2015125112A (en) | 2015-07-06 |
| KR20160077024A (en) | 2016-07-01 |
| JP6381909B2 (en) | 2018-08-29 |
| DE102014216958B4 (en) | 2018-02-15 |
| DE102014216958A1 (en) | 2015-07-02 |
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