CN104937398A - Imaging device - Google Patents
Imaging device Download PDFInfo
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- CN104937398A CN104937398A CN201380067986.8A CN201380067986A CN104937398A CN 104937398 A CN104937398 A CN 104937398A CN 201380067986 A CN201380067986 A CN 201380067986A CN 104937398 A CN104937398 A CN 104937398A
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- Prior art keywords
- light
- mentioned
- light reflector
- reflector
- inspection area
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- 238000003384 imaging method Methods 0.000 title claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 51
- 238000007689 inspection Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000011109 contamination Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000013590 bulk material Substances 0.000 description 16
- 230000007246 mechanism Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- KPHWPUGNDIVLNH-UHFFFAOYSA-M diclofenac sodium Chemical compound [Na+].[O-]C(=O)CC1=CC=CC=C1NC1=C(Cl)C=CC=C1Cl KPHWPUGNDIVLNH-UHFFFAOYSA-M 0.000 description 9
- 230000011514 reflex Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000011027 product recovery Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910001561 spheroidite Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 244000144725 Amygdalus communis Species 0.000 description 1
- 235000011437 Amygdalus communis Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 235000020224 almond Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000014571 nuts Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0018—Sorting the articles during free fall
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention allows a device to be smaller and improves selection accuracy by forming read lines in an inspection region as straight lines. An imaging device (12) inspects for defects and contamination of foreign bodies while continuously transporting a material. The imaging device (12) comprises an imaging optical system (32) that reflects light from an inspection region (K) by way of a plurality of light reflecting bodies (28, 29, 30, 31), and imaging elements (33, 34) that forms an optical image of the material derived by the imaging optical system (32). At least a pair of light reflecting bodies (28, 30) of the plurality of light reflecting bodies (28, 29, 30, 31) of the imaging optical system (32) is formed to have a concave face.
Description
Technical field
The present invention relates to the filming apparatus be mixed into for checking unacceptable product in bulk material or foreign matter in inspection area optically.As bulk material, there are the fruits and vegetables classes such as the beans such as the nut fruits such as cereal, almond, soybean such as tablet, capsule, rice or wheat, resin piller, raisins.
Background technology
In the past, be known to following separator: make the grain of rice, resin piller even-granular material passes through in inspection area, and in inspection area, make the light from light source reflect at bulk material, by by optical mechanism, the unacceptable product departing from suitable light-quantity range is checked, and with separating mechanisms such as air blowoffs, this unacceptable product is separated to the path different from normal thing.As such separator, such as, there is the device disclosed in patent documentation 1.
In patent documentation 1, possess the bending light path formation mechanism that light is reflective, the reflective bending light path formation mechanism of this light makes the reflected light from light source in inspection area turn back towards optical axis direction, and by the light that turned back to light mechanism guides.If Fig. 8 A and Fig. 8 B is (also with reference to Figure 16 (a), (b) of patent documentation 1.) shown in, the reflective bending light path formation mechanism of this light possesses the first light reflector 10A of the reflected light back from light source in inspection area and to be reflected by the light after being reflected by this first light reflector 10A and to the second light reflector 11 guided by optical mechanism 5.And, the light reflection surface of above-mentioned first light reflector 10A is formed as concave, above-mentioned second light reflection surface 11 is formed as flat shape or convex shape.
The light reflection surface of the first light reflector 10A is formed as concave.Therefore, if reflect from the light of inspection area by the first light reflector 10A, then respectively from the light of the multiple units light object range in inspection area to be assembled the attitudinal reflexes of ground flexing to the center side in the width direction, path of inspection area by the light reflection surface of concave.Its result, makes light reflect with the state making the picture of inspection area reduce.To be reflected by the second light reflector 11 by the light after this first light reflector 10A reflects and to guiding by optical mechanism 5, wherein, the second light reflector 11 is formed by light reflection surface being formed as flat shape or convex shape.
Make to be reflected by the first light reflector 10A with the state of doing one's utmost to the optical axis direction by optical mechanism 5 is close from the light of the multiple units light object range in inspection area respectively.Thus, so that bending light path can be formed by the mode of picture after the picture reducing inspection area by optical mechanism 5 light.Object conveying mechanism is utilized to carry spheroidite group to make it to pass through inspection area.Even if this spheroidite group misplaces on the direction intersected with width direction, path because of the confusion of carrying, the spheroidite group that this is staggered as other adjacent unit light object range arranged light income and the worry by mistake evaluated is also less.And and be configured to by the first light reflector 10A compared with the situation of flat shape, the length along the path width direction of the second light reflector 11 shortens.Therefore, it is possible to make device compact (with reference to Fig. 8 A and Fig. 8 B).
In above-mentioned bending light path formation mechanism, the light of inspection area reflects with the mode flexing of assembling to the center side in width direction, path because of the reflecting surface of concave mirror.As shown in Figure 7, the reading line R being formed at inspection area K it is desirable to the linearity represented by symbol R1.In fact, there is the distortion of light reflection surface 110a because of concave mirror 110, become the arc-shaped represented by symbol R2.The line of the arc-shaped represented by symbol R2, at the central portion C of path width and left end L1 and right-hand member L2, staggers with the desirable reading line represented by symbol R1.Concave mirror (only having the concave mirror of curvature in transverse direction (horizontal direction)) that such dislocation is formed at two dimension at light reflection surface 110a, also produces, and spherical reflector (having the concave mirror of curvature in transverse direction (horizontal direction) and longitudinal (vertical direction)) being formed at three-dimensional at light reflection surface 110a also produces.
Think that this dislocation is because being made inspection area with the mode flexing of assembling to the center side in width direction, path, to make it producing as little mode reflects than script by concave mirror.But, in order to the miniaturization of implement device, the employing of inevitable concave mirror.Therefore, the action delay of the accuracy of detection reduction of the unacceptable product caused by dislocation, the air blowoff caused by dislocation eliminated by needs.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2006-234744
Summary of the invention
Invent problem to be solved
The present invention using provide can implement device miniaturization and can eliminate check staggering of position and the filming apparatus that realizes the raising of sharpness of separation for as technical task.
For solving the scheme of problem
In order to solve above-mentioned problem, the present invention possesses: light source; Photographing optical system; Capturing element, it carries out imaging to being guided the optical imagery of the material come by this photographing optical system; And inspection area, it is the illuminated light from above-mentioned light source and checks the region of material optically, and above-mentioned filming apparatus is used for carrying material to check optically in above-mentioned inspection area, and it adopts following technical scheme:
Above-mentioned photographing optical system possesses multiple light reflector, above-mentioned multiple light reflector possesses light reflection surface respectively, the light reflection surface of at least one pair of light reflector is formed as concave, utilize above-mentioned multiple light reflector, the reflected light of the light from above-mentioned light source irradiation to above-mentioned material in above-mentioned inspection area is reflected in the mode of turning back.
Further, in the invention that scheme 2 is recorded, above-mentioned photographing optical system possesses: the first light reflector, and it makes the reflected light of the light from above-mentioned light source irradiation to above-mentioned material in above-mentioned inspection area reflect in the mode of turning back; Second light reflector, it reflects by the light after the reflection of this first light reflector; 3rd light reflector, it reflects by the light after the reflection of this second light reflector; And the 4th light reflector, it guides by the light after the 3rd light reflector reflection to above-mentioned capturing element, the light reflection surface of above-mentioned first light reflector and the 3rd light reflector is formed as concave, the light reflection surface of above-mentioned second light reflector and the 4th light reflector is formed as flat shape.
In addition, in the invention that scheme 3 is recorded, also possess concave mirror support unit, above-mentioned first light reflector and the 3rd light reflector are supported on above-mentioned concave mirror support unit respectively, and can be set up in parallel in a pair in the vertical direction.
And, can be configured to, whole light reflection surface of above-mentioned multiple light reflector is formed as making in concave or above-mentioned multiple light reflector the light reflector of the light original reflection from above-mentioned light source irradiation to above-mentioned material in above-mentioned inspection area and the light reflector that will guide to above-mentioned capturing element to be formed as concave.
The effect of invention is as follows.
According to the invention that scheme 1 is recorded, material is being carried continuously while check that in the filming apparatus be mixed into of unacceptable product or foreign matter, this filming apparatus possesses: the photographing optical system making the light from inspection area reflect in the mode of turning back with multiple light reflector for one side; And to being guided the optical imagery of the material come to carry out the capturing element of imaging by this photographing optical system, above-mentioned photographing optical system is by being formed as concave by the light reflection surface of at least one pair of light reflector in above-mentioned multiple light reflector, thus offset arc-shaped reading line by circular arc protruding upward and the downward circular arc protruded, thus the reading line of the linearity not producing dislocation can be formed.Thus, by the employing of concave mirror, can the miniaturization of implement device, and the problem of the accuracy of detection difference of the unacceptable product caused by dislocation can be eliminated.
And, according to the invention that scheme 2 is recorded, combination concave mirror and plane mirror and define photographing optical system, can form the reading line of the linearity not producing dislocation in capturing element, and by adopting concave mirror and plane mirror that manufacturing cost can be made cheap simultaneously.
In addition, according to the invention that scheme 3 is recorded, above-mentioned first light reflector and the 3rd light reflector can be set up in parallel in the vertical direction mode in a pair, above-mentioned first light reflector and the 3rd light reflector are supported on concave mirror support unit respectively, thus with assemble separately compared with each light reflector, assembling operation can be improved further.
Accompanying drawing explanation
Fig. 1 is the concise and to the point longitudinal section of the testing fixture of the filming apparatus of application embodiments of the present invention.
Fig. 2 is the sketch of the photographing optical system of the camera of the filming apparatus representing application embodiments of the present invention.
Fig. 3 is the schematic diagram of the reflex of the light reflector representing photographing optical system.
Fig. 4 is the sketch of other the embodiment representing photographing optical system.
Fig. 5 A is the schematic diagram of the reflex represented when being reflected continuously by two panels concave mirror.
Fig. 5 B is the schematic diagram of the reflex represented when being reflected continuously by two panels concave mirror.
Fig. 5 C is the schematic diagram of the reflex represented when being reflected continuously by two panels concave mirror.
Fig. 6 is the sketch of other the embodiment representing photographing optical system.
Fig. 7 is the schematic diagram representing the reading line being formed at inspection area K.
Fig. 8 A is the sketch of the bending light path formation mechanism represented in the past.
Fig. 8 B is the sketch of the bending light path formation mechanism represented in the past.
Embodiment
Be described for implementing mode of the present invention with reference to accompanying drawing.Fig. 1 is the concise and to the point longitudinal section of the testing fixture of the bulk material of the filming apparatus of application present embodiment.
As shown in Figure 1, the testing fixture 1 of bulk material possesses in casing 2: as the chute 3 of conveying mechanism; Case 4 is stockpiled for what stockpile cereal even-granular material; For the oscillating feeder 5 by being carried to chute 3 from the bulk material stockpiling case 4; Across the inspection portion 6 that the front and back falling track of the bulk material fallen from chute 3 lower end are arranged; Than the injector nozzle 7 that inspection portion 6 is also arranged on the lower; Receive the certified products recovery cylinder 8 of normal bulk material; Be set up in parallel with this certified products recovery cylinder 8, for reclaiming the unacceptable product recovery cylinder 9 of underproof bulk material; And auxiliary unacceptable product recovery cylinder 10.Chute 3 configures with the angular slope of dried up mean place about 60 degree.Qualified recycling bin 8 is on the parallax identical with chute 3, receives the normal bulk material be not subject to from the spray wind of injector nozzle 7.Underproof bulk material is subject to the spray wind from injector nozzle 7, and is separated with normal bulk material.Auxiliary unacceptable product recycling bin 10 reclaims the underproof bulk material that unsuccessful reception is collided from the spray wind of injector nozzle 7 and the parts of surrounding and rebounded.
Inspection portion 6a, 6b are surrounded by casing 11a, 11b respectively.And, be in the casing 11a falling the front side of track of bulk material, built with: the camera 12a applying filming apparatus of the present invention; Visible light source 13a, 13b of being made up of fluorescent light, LED etc.; The near-infrared light source 14a be made up of Halogen lamp LED, LED etc.; And the opposed background 15a of inspection portion 6b.At the CCD solid-state image pickup element of camera 12a built with visible ray and the NIR solid-state image pickup element of near infrared light.Be in the casing 11b flowing down the rear side of track of bulk material, built with: the camera 12b applying filming apparatus of the present invention; Visible light source 13c, 13d of being made up of fluorescent light, LED etc.; The near-infrared light source 14b be made up of Halogen lamp LED, LED etc.; And the opposed background 15b of inspection portion 6a.At the CCD solid-state image pickup element of camera 12b built with visible ray and the NIR solid-state image pickup element of near infrared light.And, casing 11a, 11b by bulk material fall track side, be embedded with window component 16a, 16b of being made up of clear glass.Inspection area K is become near the position impaled by two window component 16a, 16b.
Air from not shown air compressor is supplied via odd-side 17, pipe arrangement 18, solenoid valve 19 to above-mentioned injector nozzle 7 from air hose 20.Above-mentioned odd-side 17 temporarily stockpiles the air from air compressor.By arranging this odd-side 17, even if when the air capacity consumed from injector nozzle 7 is more, be not absorbed in the worry of lack of air yet.
Qianmen 22 is provided with at the inclined wall in the front of casing 2.Qianmen can be rotated in the vertical direction by cylinder 21.Thereby, it is possible to easily carry out the upkeep operations such as cleaning.Liquid crystal display 23 is provided with in the below at this Qianmen 22.Liquid crystal display 23 possesses touch panel, doubles as guidance panel and monitor.Liquid crystal display 23 is disposed in the height and position of the eyes of operating personnel.Thereby, it is possible to easily carry out mechanically actuated, and improve operability.
The symbol 24 of Fig. 1 is unacceptable product receiving port, and symbol 25 is certified products receiving ports, and symbol 26 is auxiliary unacceptable product receiving ports, and symbol 27 is sample extraction portions.
Fig. 2 is the sketch of the optical system representing the camera applying filming apparatus of the present invention.
As shown in Figure 2, camera 12 forms major part by photographing optical system 32, the capturing element 33,34 that the optical imagery of the material guided by this photographing optical system 32 carried out to imaging.Photographing optical system 32 utilizes multiple light reflector 28,29,30,31 that the light from inspection area is reflected in the mode of turning back.Capturing element 33 is the CCD the solid-state image pickup elements especially light of the wavelength of the visible component in optical imagery being carried out to imaging.Capturing element 34 is the NIR the solid-state image pickup elements especially light of the wavelength of the near infrared light composition in optical imagery being carried out to imaging.And, between light reflector 31 and capturing element 33,34, be equipped with dichronic mirror 35.Thus, by photographing optical system 32 guide the optical imagery that forms of visible component that comes because of dichronic mirror 35 flexing, and scioptics 36 and in the imaging surface 33a imaging of CCD solid-state image pickup element 33.The optical imagery that forms of near infrared light composition that comes is guided from dichronic mirror 35 through, and scioptics 37 and in the imaging surface 34a imaging of NIR solid-state image pickup element 34 by photographing optical system 32.
Photographing optical system 32 is described in detail in detail.Light reflector 28 shown in Fig. 2 is formed by concave mirror, and this concave mirror is made up of paraboloidal mirror.Light reflector 29 is formed by plane mirror.Light reflector 30 is formed by concave mirror, and this concave mirror is made up of paraboloidal mirror.Light reflector 31 is formed by plane mirror.And the light reflector 28 be made up of concave mirror and the light reflector 30 that is made up of concave mirror are to be installed on concave mirror support unit 39 in above-below direction (above-below direction of the enclosure interior of camera 12) the upper mode be set up in parallel for a pair.Like this, if light reflector 28 and 30 is installed in the mode be set up in parallel for a pair in the vertical direction, then with separately assemble compared with each light reflector 28,30, can assembling operation be improved.
Next, the effect of said structure is described.Fig. 3 is the schematic diagram of the reflex of the light reflector representing photographing optical system.
In Fig. 2 and Fig. 3, light is from light source irradiation, and by material reflects in the K of inspection area, the light after this reflection is incident with incident angle φ 1 via window component 16.Light after incidence is reflected with angle φ 2 by light reflector (concave mirror) 28.Now, the mode of assembling with the center side in the width direction, path to inspection area K is reflected.
Next, reflected with angle φ 3 in light reflector (plane mirror) 29.In this situation (successively by the situation of concave mirror and plane mirror reflection), as in the past, the reading line being formed at inspection area K becomes arc-shaped (with reference to the symbol R2 of Fig. 3.Arc-shaped protruding upward.)。
In addition, if reflected with angle φ 4 by light reflector (concave mirror) 30, then the mode of again assembling with the center side in the width direction, path to inspection area K is reflected.In this situation (after successively by first concave mirror, plane mirror and second concave mirror), as shown in Figure 3, the reading line being formed at inspection area K becomes the arc-shaped protruded as shown in symbol R3 downwards.If combination first concave mirror and second concave mirror, then arc-shaped protruding upward reads the line (effect of symbol R2, first concave mirror 28.) and the downward arc-shaped reading line (effect of symbol R3, second concave mirror 30 of protruding.) optically offset.By this optic counteracting, when incident to capturing element 33,34, be in fact identified with the reading line of the linearity shown in the R1 of Fig. 3.
In addition, with reference to Fig. 2 be described time, by light reflector (concave mirror) 30 reflect after light by light reflector (plane mirror) 31 with angle
reflected, and incident to dichronic mirror 35.To in the light after dichronic mirror 35 incidence, the optical imagery that visible component is formed 90 ° of flexings, and scioptics 36 and in the imaging surface 33a imaging of CCD solid-state image pickup element 33.Further, the optical imagery that near infrared light composition is formed is through dichronic mirror 35, and scioptics 37 and in the imaging surface 34a imaging of NIR solid-state image pickup element 34.And, in the imaging surface 33a of CCD solid-state image pickup element 33 and the imaging surface 34a of NIR solid-state image pickup element 34, form the reading line not producing the linearity of dislocation.
Fig. 4 is the sketch of other the embodiment representing photographing optical system.In embodiment shown in Fig. 4, light reflector 28,29,30,31 all adopts the concave mirror be made up of paraboloidal mirror.Fig. 5 A, Fig. 5 B, Fig. 5 C are the schematic diagram of the reflex represented when being reflected continuously by two panels concave mirror.Fig. 5 A is the action diagram being expressed as follows situation: make the reflected light from the shot-like particle in the K of inspection area concentrate on the central authorities in width direction, path by a slice concave mirror, solid-state image pickup element imaging upward flexing time the reading line imaging that protrudes downwards.Fig. 5 B is the action diagram being expressed as follows situation: make the reflected light from the shot-like particle in the K of inspection area concentrate on the central authorities in width direction, path by a slice concave mirror, solid-state image pickup element imaging downwards flexing time reading line protruding upward.Fig. 5 C represents composite diagram 5A and the concave mirror shown in Fig. 5 B and the schematic diagram of reflex after using two panels concave mirror.
With reference to Fig. 4 and Fig. 5 C, the reflex of the light reflector of photographing optical system is described.In Fig. 4 and Fig. 5 C, if incident with incident angle φ 1 via window component 16 from the reflected light of the shot-like particle in the K of inspection area, then first reflected with angle φ 2 by light reflector (concave mirror) 28.Now, the mode of assembling with the center side in the width direction, path to inspection area K is reflected.
Next, in light reflector (concave mirror) 29, also to be reflected in the mode of assembling to the center side in width direction, path with angle φ 3.In this situation, for the reading line being formed at inspection area K, if combination first concave mirror 28 and second concave mirror 29, then identical with Fig. 3, arc-shaped reading line protruding upward and the arc-shaped protruded downwards read line and optically offset.By this optic counteracting, when incident to capturing element 33,34, be in fact identified with the reading line of linearity.
In addition, when being described with reference to Fig. 4, reflected with angle φ 4 by light reflector (concave mirror) 30 equally by the light after light reflector (concave mirror) 29 reflects.In addition, after being reflected with angle φ 5 by light reflector (concave mirror) 31, incident to dichronic mirror 35.To in the light after dichronic mirror 35 incidence, the optical imagery that visible component is formed 90 ° of flexings, and scioptics 36 and in the imaging surface 33a imaging of CCD solid-state image pickup element 33.Further, the optical imagery that near infrared light composition is formed is through dichronic mirror 35, and scioptics 37 and in the imaging surface 34a imaging of NIR solid-state image pickup element 34.And, in the imaging surface 33a of CCD solid-state image pickup element 33 and the imaging surface 34a of NIR solid-state image pickup element 34, form the reading line not producing the linearity of dislocation.Compared with embodiment shown in present embodiment with Fig. 2, the reading line that rectilinearity is higher can be formed, but due to whole light reflectors use concave mirror, so manufacturing cost uprises.
Fig. 6 is the sketch of other the embodiment representing photographing optical system.In embodiment shown in Fig. 6, have employed for from the initial light reflector 28 of window component 16 incidence with to the last light reflector 31 that capturing element guides the concave mirror be made up of paraboloidal mirror.In present embodiment, also can expect the effect identical with the embodiment shown in Fig. 2, effect, but due to the light reflector be made up of concave mirror cannot be set up in parallel, so assembling operation becomes difficult.
As mentioned above, in embodiments of the present invention, at least one pair of light reflector 28,30 in multiple light reflector 28,29,30,31 is formed as concave.By this structure, offset arc-shaped specific to concave mirror by circular arc protruding upward and the downward circular arc protruded and read line, thus the reading line of the linearity not producing dislocation can be formed.Further, the accuracy of detection of the unacceptable product caused by dislocation, the operating state of air blowoff caused by dislocation can be improved.
In addition, filming apparatus of the present invention is not limited to above-mentioned embodiment, can carry out various design alteration.
Utilizability in industry
The present invention can be applied to the materials such as cereals such as carrying tablet, capsule, meter Mai continuously, resin piller or fruit, for checking the filming apparatus be mixed into of unacceptable product in material or foreign matter.
The explanation of symbol
1-testing fixture, 2-casing, 3-chute, 4-stockpile case, 5-oscillating feeder, 6-inspection portion, 7-injector nozzle, 8-certified products recovery cylinder, 9-unacceptable product recovery cylinder, 10-auxiliary unacceptable product recovery cylinder, 11-casing, 12-camera (filming apparatus), 13-visible light source, 14-near-infrared light source, 15-background, 16-window component, 17-odd-side, 18-pipe arrangement, 19-solenoid valve, 20-air hose, 21-cylinder, 22-Qianmen, 23-liquid crystal display, 24-unacceptable product receiving port, 25-certified products receiving port, 26-auxiliary unacceptable product receiving port, 27-sample extraction portion, 28-light reflector (concave mirror), 29-light reflector (level crossing), 30-light reflector (concave mirror), 31-light reflector (level crossing), 32-photographing optical system, 33-capturing element (CCD solid-state image pickup element), 34-capturing element (NIR solid-state image pickup element), 35-dichronic mirror, 36-lens, 37-lens, 39-concave mirror support unit.
Claims (5)
1. a filming apparatus, possesses:
Light source;
Photographing optical system;
Capturing element, it carries out imaging to being guided the optical imagery of the material come by this photographing optical system; And
Inspection area, it is the illuminated light from above-mentioned light source and checks the region of material optically,
Above-mentioned filming apparatus is used for carrying material while check optically in above-mentioned inspection area, it is characterized in that,
Above-mentioned photographing optical system possesses multiple light reflector,
Above-mentioned multiple light reflector possesses light reflection surface respectively, and the light reflection surface of at least one pair of light reflector is formed as concave,
Utilize above-mentioned multiple light reflector, the reflected light of the light from above-mentioned light source irradiation to above-mentioned material in above-mentioned inspection area is reflected in the mode of turning back.
2. filming apparatus according to claim 1, is characterized in that,
Above-mentioned photographing optical system possesses:
First light reflector, it makes the reflected light of the light from above-mentioned light source irradiation to above-mentioned material in above-mentioned inspection area reflect in the mode of turning back;
Second light reflector, it reflects by the light after the reflection of this first light reflector;
3rd light reflector, it reflects by the light after the reflection of this second light reflector; And
4th light reflector, it guides by the light after the 3rd light reflector reflection to above-mentioned capturing element,
The light reflection surface of above-mentioned first light reflector and the 3rd light reflector is formed as concave,
The light reflection surface of above-mentioned second light reflector and the 4th light reflector is formed as flat shape.
3. filming apparatus according to claim 2, is characterized in that,
Also possess concave mirror support unit,
Above-mentioned first light reflector and the 3rd light reflector are supported on above-mentioned concave mirror support unit respectively, and can be set up in parallel in a pair in the vertical direction.
4. filming apparatus according to claim 1, is characterized in that,
Whole light reflection surface of above-mentioned multiple light reflector is formed as concave.
5. filming apparatus according to claim 1, is characterized in that,
In above-mentioned multiple light reflector, the light reflection surface making the light reflector of the reflected light original reflection of the light from above-mentioned light source irradiation to above-mentioned material in above-mentioned inspection area and the light reflection surface of light reflector that will guide to above-mentioned capturing element are formed as concave.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012288023A JP6179752B2 (en) | 2012-12-28 | 2012-12-28 | Inspection device |
| JP2012-288023 | 2012-12-28 | ||
| PCT/JP2013/083572 WO2014103767A1 (en) | 2012-12-28 | 2013-12-16 | Imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104937398A true CN104937398A (en) | 2015-09-23 |
| CN104937398B CN104937398B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380067986.8A Expired - Fee Related CN104937398B (en) | 2012-12-28 | 2013-12-16 | Check device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6179752B2 (en) |
| KR (1) | KR102124678B1 (en) |
| CN (1) | CN104937398B (en) |
| TW (1) | TWI608228B (en) |
| WO (1) | WO2014103767A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742213A (en) * | 2018-02-26 | 2020-10-02 | 株式会社佐竹 | Lighting device for sorting or inspecting machine |
| CN111982926A (en) * | 2020-07-23 | 2020-11-24 | 上海珂明注塑系统科技有限公司 | Visual detection equipment and detection method for container |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5943366B1 (en) * | 2015-08-28 | 2016-07-05 | 株式会社サタケ | Device with optical unit |
| CN105268658B (en) * | 2015-10-27 | 2018-06-19 | 广州珐玛珈智能设备股份有限公司 | A kind of counting grain machine fragment device for eliminating and its elimination method |
| JP7501771B1 (en) | 2023-12-13 | 2024-06-18 | 株式会社サタケ | Optical discrimination device and optical sorting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003255475A (en) * | 2002-03-06 | 2003-09-10 | Fuji Xerox Co Ltd | Image reader |
| US20040247193A1 (en) * | 2001-09-13 | 2004-12-09 | Qualtrough Paul Thomas | Method and apparatus for article inspection |
| CN1691990A (en) * | 2002-09-13 | 2005-11-02 | 索尔泰克斯公司 | Quality assessment of product in bulk flow |
| JP2006234744A (en) * | 2005-02-28 | 2006-09-07 | Kubota Corp | Granular material selector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003156447A (en) * | 2001-11-19 | 2003-05-30 | Yamamoto Co Ltd | Color classifier |
-
2012
- 2012-12-28 JP JP2012288023A patent/JP6179752B2/en active Active
-
2013
- 2013-12-16 KR KR1020157019978A patent/KR102124678B1/en active IP Right Grant
- 2013-12-16 CN CN201380067986.8A patent/CN104937398B/en not_active Expired - Fee Related
- 2013-12-16 WO PCT/JP2013/083572 patent/WO2014103767A1/en active Application Filing
- 2013-12-27 TW TW102148826A patent/TWI608228B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040247193A1 (en) * | 2001-09-13 | 2004-12-09 | Qualtrough Paul Thomas | Method and apparatus for article inspection |
| JP2003255475A (en) * | 2002-03-06 | 2003-09-10 | Fuji Xerox Co Ltd | Image reader |
| CN1691990A (en) * | 2002-09-13 | 2005-11-02 | 索尔泰克斯公司 | Quality assessment of product in bulk flow |
| JP2006234744A (en) * | 2005-02-28 | 2006-09-07 | Kubota Corp | Granular material selector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742213A (en) * | 2018-02-26 | 2020-10-02 | 株式会社佐竹 | Lighting device for sorting or inspecting machine |
| CN111982926A (en) * | 2020-07-23 | 2020-11-24 | 上海珂明注塑系统科技有限公司 | Visual detection equipment and detection method for container |
| CN111982926B (en) * | 2020-07-23 | 2023-08-18 | 上海珂明注塑系统科技有限公司 | Visual inspection equipment for container and inspection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014130080A (en) | 2014-07-10 |
| JP6179752B2 (en) | 2017-08-16 |
| KR102124678B1 (en) | 2020-06-18 |
| TW201433787A (en) | 2014-09-01 |
| CN104937398B (en) | 2018-04-17 |
| KR20150103087A (en) | 2015-09-09 |
| TWI608228B (en) | 2017-12-11 |
| WO2014103767A1 (en) | 2014-07-03 |
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