WO1997027765A1 - Appareil et procede permettant d'effectuer un traitement de surface sur des tubercules comestibles - Google Patents

Appareil et procede permettant d'effectuer un traitement de surface sur des tubercules comestibles Download PDF

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Publication number
WO1997027765A1
WO1997027765A1 PCT/JP1997/000208 JP9700208W WO9727765A1 WO 1997027765 A1 WO1997027765 A1 WO 1997027765A1 JP 9700208 W JP9700208 W JP 9700208W WO 9727765 A1 WO9727765 A1 WO 9727765A1
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WO
WIPO (PCT)
Prior art keywords
laser
processed food
laser light
food material
surface treatment
Prior art date
Application number
PCT/JP1997/000208
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English (en)
Japanese (ja)
Inventor
Kyoji Kokufuda
Original Assignee
Shinozaki Manufacturing Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shinozaki Manufacturing Co., Ltd. filed Critical Shinozaki Manufacturing Co., Ltd.
Priority to AU15561/97A priority Critical patent/AU1556197A/en
Publication of WO1997027765A1 publication Critical patent/WO1997027765A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N7/00—Peeling vegetables or fruit
    • A23N7/02—Peeling potatoes, apples or similarly shaped vegetables or fruit
    • A23N7/023—Peeling potatoes, apples or similarly shaped vegetables or fruit one by one
    • A23N7/026—Peeling machines therefor with rotary fruit holding spindles and fixed or movable peeler blades

Definitions

  • the present invention relates to an apparatus and a method for peeling and removing buds of root vegetables such as potatoes and burdock, fruits such as apples and oysters, and other foods having skins.
  • a skin peeler called a steam peeler
  • the use of a steam peeler has the advantage of easy peeling, but the volume after peeling is small, resulting in poor yield and heat ringing, which adversely affects products.
  • the alkali peeling method and the dry peeling method but in both cases, heating is generated and adversely affects the product.In the latter case, there is a problem that chemicals remain in food unless they are sufficiently washed. is there.
  • the present invention has been made in view of such a background, and it is possible to efficiently and inexpensively peel the root vegetables and the like. Moreover, it is an object of the present invention to provide an apparatus and a method for surface treatment of root crops and the like that generate as little waste as possible.
  • the present invention employs the following means.
  • the surface treatment apparatus of the present invention is an apparatus for treating the surface of a processed food material such as root vegetables as described in claim 1, comprising: a laser oscillation source; and a laser oscillation source.
  • the surface treatment of the processed food material may be peeling of the processed food material.
  • the surface treatment of the processed food material may be removal of buds present on the surface of the processed food material.
  • the laser optical system has a linear laser beam forming means composed of a combination of a diverging lens and a cylindrical lens, and the direction in which the line of the linear laser beam formed by the linear laser beam forming means extends, The direction may be substantially orthogonal to the moving direction of the processed food material in the apparatus.
  • the moving device may have a structure that allows the processed food material to roll over a certain length.
  • the laser optical system has one or two or more semi-transmissive mirrors on a laser beam traveling path and a total reflection mirror provided after the last semi-transmissive mirror in the traveling direction of the laser beam.
  • the reflecting mirrors are arranged at a constant inclination with respect to the traveling path of the laser beam, and the laser beams respectively reflected by the transflective mirror and the total reflecting mirror irradiate different positions on the moving device. You may.
  • Another aspect of the present invention relates to a processed food such as root vegetables as described in claim 7.
  • An apparatus for treating a surface of a raw material comprising: a laser oscillation source; a laser optical system that guides laser light oscillated from the laser oscillation source; and a processed food material held based on a first drive signal.
  • Holding and driving means capable of rotating the processed food material, an observation system for observing a specific portion of the surface of the processed food material, included in the laser optical system, and provided with a second drive signal.
  • a laser light path changing means for changing a direction of the laser light so as to irradiate the laser light to a specific portion of the processed food raw material, based on the position of the specific portion of the processed food raw material observed by the observation system.
  • a control device for transmitting the first drive signal and the second drive signal to the holding drive means and the laser light path changing means, respectively.
  • a CCD camera that captures the visible laser light reflected by the raw material and a monitor that displays an image captured by the CCD camera may be provided.
  • Another aspect of the present invention is a method of treating a surface of a processed food material such as root vegetables as described in claim 9, wherein a step of preparing a laser oscillation source that oscillates a laser beam is provided. Processing a laser beam oscillated from the laser oscillation source into a linear laser beam, and then irradiating the linear laser beam onto a moving path of the processed food material; Moving the processed food material on the moving path while changing the surface of the processed food material so that the entire surface to be processed of the processed food material is irradiated.
  • the surface treatment of the processed food material may be peeling of the processed food material.
  • Another aspect of the present invention is a method for treating a surface of a processed food material such as root vegetables as described in claim 11, wherein a step of preparing a laser oscillation source for oscillating laser light is provided. A step of rotatably holding the processed food raw material, a step of observing a specific portion of the surface of the processed food raw material to be processed, and a step of observing the laser light oscillated from the laser oscillation source.
  • the surface treatment of the processed food material may be removal of buds present on the surface of the processed food material.
  • a laser oscillation source a laser optical system that guides laser light oscillated from the laser oscillation source, and a laser optical system A device for holding the processed food material in the path of the laser beam.
  • a step of preparing a laser oscillation source that oscillates laser light and using the laser light oscillated from the laser oscillation source as a raw food material Irradiating.
  • FIG. 1 is a schematic view showing an apparatus for treating the entire surface of a potato as an example of the surface treatment apparatus of the present invention.
  • Fig. 2 (a) shows the shape of each lens and how the laser beam is refracted when the combination lens of Fig. 1 is cut along the line 2a-2a in Fig. 1.
  • Fig. 2 (b) This figure shows the shape of each lens and how the laser beam is bent when the combined lens is cut along a plane parallel to the paper.
  • FIG. 3 is a schematic view showing an apparatus for removing potato sprouts as an example of the surface treatment apparatus of the present invention.
  • reference numeral 1 denotes a surface treatment apparatus of the present invention, which is a laser oscillator 3, a laser optical system 5 for guiding a laser oscillated from the laser oscillator 3 to an object to be processed, and a movement for moving the object to be processed. It has the device 7.
  • a potato is picked up as an object to be treated, and the potato is peeled and sprouted by the apparatus of the present invention.
  • Laser oscillator 3 used in this embodiment first, TEAC 0 2 laser device (Le Monikusu Co.
  • a device capable of oscillating a pulse laser can be appropriately selected from various devices such as other gas laser devices, solid-state laser devices, and semiconductor laser devices according to a processing object, a processing method, and the like. .
  • the present invention is intended for processing such as peeling and bud removal of root vegetables and the like, it is not necessary to use a laser device capable of fine processing.
  • the laser optical system 5 includes three semi-transmissive mirrors 9 arranged at substantially equal intervals at an inclination of 45 degrees with respect to the traveling direction of the laser light, and a row of these semi-transmissive mirrors 9. Finally, it consists of a total reflection mirror 11 arranged at the same inclination as the semi-transmissive mirror, and four combination lenses 13 arranged below each of the semi-transmissive mirror 9 and the total reflection mirror 11 Is done.
  • each semi-transmissive mirror 9 Since each semi-transmissive mirror 9 has a property of transmitting a part of the laser light oscillated from the laser oscillator 3, the oscillated laser light is partially reflected by the first semi-transmissive mirror 9, and The light enters the combination lens 13. The laser light not reflected by the first transflective mirror 9 passes through the first transflective mirror 9 and reaches the next transflective mirror 9. The semi-transmissive mirror 9 also partially reflects and enters the corresponding combination lens 13, and the rest passes through the semi-transmissive mirror 9. In this way, a part of the laser light also branches off at the third semi-transmissive mirror 9, and finally, all the remaining laser light is reflected by the total reflection mirror 11 and reaches the corresponding combination lens 13. . The reason for splitting the laser beam into four beams in this way is to eliminate defects in the potato peeling process by each of the branched laser beams as described later.
  • each combination lens 13 is composed of a diverging lens 15 and a cylindrical lens 17 having a substantially cylindrical shape.
  • Fig. 2 (a) shows the shape of each lens and how the laser beam is refracted when cut along the line 2a-2a in Fig. 1, and Fig. 2 (b) shows one combination lens 1 in Fig. 1.
  • FIG. 3 shows the shape of each lens and how laser light is refracted when 3 is cut along a plane parallel to the paper surface.
  • the laser passed through the combination lens 13 having the above configuration. The light spreads in a direction extending from the paper surface of FIG. 1 to the back surface, and converges in a direction parallel to the paper surface of FIG.
  • the potato J existing on the moving device S7 is irradiated with a linear laser beam, so that the surface of the potato over a wide range can be treated with one laser beam.
  • the direction moving device 7 is provided between the sending stock force 19 for the potato J before the surface treatment and the collecting stock force 21 for the potato after the surface treatment, and has a series of gutter-like shapes. . That is, the moving device 7 is provided with a delivery portion 23 extending downward from the delivery stocker 19, a substantially flat processing portion 25 following the delivery portion 23, and a lower portion extending from the processing portion to the upper portion of the recovery stock force 21. And a recovery part 27 inclined at an angle. As a result, the potatoes supplied from the delivery stocker 19 move while rolling naturally along the moving device 7 at the position energy, and are collected by the collection stock force 21.
  • the processing section 25 has a projection protruding from the side in the gutter, thereby giving a change to the way of rolling of the potato rolling in the gutter so that the entire surface of the potato is upward, that is, It can face in the direction of laser beam irradiation.
  • a rotating drive mechanism that brings a rotating surface into contact with a part of the potato and applies an arbitrary rotating force to the potato is provided in the processing unit 25. Is also good.
  • a small step may be formed in the middle of the processing section 25, and the potato may temporarily stay at the step while rolling, and may be pushed downstream by the next flowing potato.
  • the linear pulsed laser beams formed by the four combined lenses 13 constantly move the four different power points of the processing unit 25 of the moving unit 7. Irradiation.
  • a linear laser beam acts on the skin and buds of the potato, which can be burned and removed instantaneously. Because the potato J rolls while changing its upward facing surface, even if there are skins and buds that cannot be burned with a laser beam in one place, the skins and buds that have not been treated at other laser beams It can receive laser beam irradiation. In this way, the skin and buds on the entire surface of the potato can be burned and removed while passing through the four places where the laser beam is irradiated.
  • a potato skin and buds were simultaneously removed using a pulse laser having a capability of 1.35 JZ pulses.
  • 3.5 to 5 JZ cm 2 is sufficient to remove only potato skin. Therefore, another embodiment in which the removal of the skin and the removal of the buds of the potato are performed in different steps in consideration of economic efficiency will be described below.
  • the apparatus shown in FIG. 1 described in the above embodiment can be used.
  • the laser is oscillated from the laser oscillator 3, using the 1. 3 C 0 2 pulsed laser 5 J / pulse.
  • the potato is rolled along the moving device 7 in the same manner as in the above embodiment, only the potato skin is removed and the bud portion remains.
  • reference numeral 1 denotes a surface treatment apparatus of the present invention, which is a laser oscillator 3, a laser optical system 29 for guiding a laser oscillated from the laser oscillator 3 to an object to be processed, and a laser beam to an object to be processed. It has an observation system 31 for observing the irradiation position of the object and a holding driving device 33 for rotating and driving the object to be processed.
  • the oscillator 3 is omitted because it is as described in the above embodiments, in the present embodiment using a TEAC 0 2 pulsed laser having 1 5 0 H z, 1. 3 5 JZ pulses ability of .
  • the laser optical system 29 has two laser guide paths. That is, the laser light oscillated from the laser oscillator 3 is partially reflected by the same semi-transmissive mirror 35 as described above, is turned 90 degrees, and is incident on the total reflection mirror 37. The remaining laser light passes through the semi-transmissive mirror 35, is reflected by the total reflection mirror 39, changes its direction by 90 degrees, and enters the total reflection mirror 41.
  • each of the total reflection mirrors 37, 41 enters the respective galvanometer mirrors 43, 43, which are the laser light path changing means, where they are reflected in the direction of the potato buds and condensed. It is guided to the position of the potato bud through the lenses 45 and 45.
  • these two types of laser guide paths are merely examples for convenience of explanation, and for example, the average number of buds is 7 to 8 per potato, and good c be provided laser taxiway eight systems with a routing
  • the laser light is branched from one laser oscillator via a plurality of semi-transmissive mirrors, and a high-power laser oscillator is employed.
  • the observation system 31 for observing the irradiation position of the laser beam employs a coaxial observation system in this embodiment. That is, apart from the laser oscillator 3, a visible laser oscillator 47 that outputs a visible laser beam (for example, HeNe laser beam) to each laser guide path is provided.
  • a visible laser oscillator 47 that outputs a visible laser beam (for example, HeNe laser beam) to each laser guide path is provided.
  • a total reflection mirror 49, a semi-transmissive mirror 51 is provided, and a beam compiler 53 is provided at an angle of 45 degrees with respect to the optical path in each part of the optical path between each galvanometer mirror 43 and the condenser lens 45.
  • This beam compiler 53 has the property of transmitting invisible laser light and reflecting visible laser light.
  • a CCD camera 55 is provided.
  • the light reflected from the visible laser light on the potato J is reflected on the beam compiler 53, passes through the semi-transmissive mirror 51, and is captured by the CCD camera 55.
  • Each CCD camera 55 is connected to a monitor 57, and an image captured from the CCD camera 55 is displayed on the monitor 57.
  • two CCD cameras 55 are connected to one monitor, and the images captured from each CCD camera 55 can be monitored by switching the images. May be able to monitor two images simultaneously.
  • a dedicated monitor corresponding to each CCD camera 55 may be provided.
  • a computer 59 is connected to the monitor 57, and a numerical controller 61 is further connected to the computer 59.
  • the computer 59 processes the image of the potato J at the irradiation position of the visible light laser, and calculates the difference between the position of the bud of the potato, that is, the target irradiation position of the bud removal laser and the current irradiation position of the visible light laser. Is calculated.
  • the calculation result is input to the numerical controller 61 as a shift correction signal, and the shift amount is converted into a shift amount between the target irradiation position on the coordinate system and the current irradiation position of the visible light laser. And digitized.
  • the numerical control device 61 generates two types of drive signals based on the quantified shift amount, and the galvanometer mirror 43 and the holding drive device 33 are driven based on the drive signals.
  • the holding driving device 33 has two gripping devices 63 and a stepping module 65.
  • Each gripping device 63 has a rotating shaft 67 and three claws 69 provided at one end thereof and having sharply pointed ends. The other end of the rotating shaft 67 is connected to a stepping motor 65 so that the stepping motor 65 can be rotated by a required amount of rotation by step driving.
  • a steering motor 65 is connected to only one gripping device 63, and the other gripping device 63 can simply rotate freely without being connected to a steering motor.
  • one gripping device 63 slides left and right so that it can be fixed at an appropriate position.
  • a steering motor may be connected to the other gripping device side so that both the steering motors are driven synchronously.
  • the above is the structure of the device for sprouts of the potato J.
  • the sprouts operation using this device will be described below.
  • one gripping device 63 is slid, and the potato J is gripped and fixed between the claws 69 of each gripping device 63.
  • the observation system 31 is operated in this state.
  • the amount of deviation between the position of the buds obtained as a result of the observation and the current irradiation position of the visible light laser is quantified by the numerical controller 61, and a drive signal is sent from the device to each galvanometer mirror 43.
  • Each galvanometer mirror 43 changes the tilt angle of the mirror based on this drive signal, whereby each laser beam oscillated from the laser oscillator 3 and radiated to a different position of the bud S of the potato J.
  • the numerical controller 61 drives the stepping motor 65 such that the stepping motor is driven, for example, by 120 degrees. A drive signal is issued. As a result, the stepping motor 65 is driven to rotate, and the range of the potato surface that has not been observed by the observation system 31 comes to the observation range. At this time, the previous observation range and the current observation range partially overlap It does not matter.
  • each galvanometer mirror 43 changes its direction so as to irradiate the laser beam to the position of the new bud S as described above. This also removes new shoots.
  • the stepping motor 65 By driving the stepping motor 65 again in this way, the buds existing on the new surface of the potato can be removed by laser light.
  • one potato is held as it is in the driving device 33, but the potato may be processed while being held in half, quarter, or eight.
  • the present invention has been described above by taking peeling and bud removal of potatoes as an example, the present invention can also be applied to root vegetables such as burdock, carrot, sweet potato, taro, and leek.
  • root vegetables such as burdock, carrot, sweet potato, taro, and leek.
  • the term “vegetables, etc.” refers to all kinds of processed products having roots, fruits, brown rice, brown rice, chestnuts, and other skins, shells, or buds that can be removed. Including food ingredients. Therefore, the present invention can be applied to peeling, bud removal, and surface dirt removal of fruits such as apples and oysters. It can be applied to shelling or astringent skinning.
  • a method of irradiating a laser beam while rolling the processing target as in the first embodiment may be adopted.
  • the processed food raw material is small and the desired surface treatment can be performed without moving the raw material, it is only necessary to irradiate the laser beam while the processed food raw material is placed on a table or the like.
  • a method of irradiating a spotlight with a laser beam by using an observation system may be adopted in the same manner as in the case of picking potato buds. .
  • the processing target is potato, and the processing content is peeling.
  • the focal length of the cylindrical lens used was 16.5 mm, the irradiation area was lx 6 mm, and the effective depth of focus of the above combination lens was The effective distance in the direction of laser travel) was 15 mm.
  • the processing target is potato, and the processing content is sprouting.
  • the irradiation diameter at the bud site was about 2 mm.
  • the total surface area of the potato was detected in 8 divisions using the observation system, and it took 54ms e c. Per division and 0.432 sec e detection time was required for the whole surface of one potato. In addition, it took a long time to remove sprouts of 0.2 to 0.3 sec per potato. A small amount of dust was generated, but the amount was very small. The potato buds were slightly deepened, the buds were completely removed, and there was no particular effect on potato quality such as heat ringing or scorching. . The yield was 99% based on the weight before treatment.
  • the processing object is burdock, and the processing content is peeling.
  • 60W, 150H z, the irradiation morphism energy 4 to 5 J Zc m 2 of TE AC0 2 lasers shines irradiation by using the apparatus shown in FIG.
  • the focal length of the cylindrical lens used was 165 mm, and the irradiation area was
  • the effective depth of focus of the combination lens was 15 mm.
  • the object to be treated is carrot, and the content of the treatment is peeling of the surface.
  • 60 W, 0.99 Hz, the TE AC0 2 laser irradiation energy 4 ⁇ 5 J Zc m 2 was irradiated with rolling on the slope carrots using the apparatus shown in FIG.
  • the focal length of the cylindrical lens used was 165 mm, the irradiation area was 1 x 6 mm, and the focal length of the above combination lens
  • the effective utilization depth was 15 mm.
  • the processing target is sweet potato, and the processing content is peeling. 60 W, 15 shed Hz, the TE AC 0 2 laser irradiation energy 4 ⁇ 5 J / cm 2, was irradiated once while rolling the slope using the apparatus shown in FIG.
  • the focal length of the cylindrical lens used was 165 mm, the irradiation area was lx6 mm, and the effective depth of focus of the combination lens was 15 mm.
  • the processing target is taro, and the processing content is peeling of the surface. 60W, 150Hz. Irradiation energy?
  • the TEA C0 2 laser ⁇ 8 J / cm 2 was irradiated using the apparatus shown in FIG.
  • the focal length of the cylindrical lens used was 165 mm, the irradiation area was lx4 mm, and the effective depth of focus of the combination lens was 15 mm.
  • some dust was generated, the amount was small, and the skin on the surface of taro was peeled off uniformly and neatly, and there was no particular effect on the quality of taro such as heating or burning.
  • the yield was 98% based on the weight before treatment.
  • the object to be treated is leek, and the treatment is peeling of the surface.
  • 60W, 15 OH 2 put a break to Subo' door irradiated continuously surface to the long green onions the TE AC0 2 laser irradiation energy 10 ⁇ 11 JZcm 2, flew-out and then to blow the skin surface by air blow.
  • a spherical combination lens with a focal depth of 15 mm was used.
  • a clean cut is formed on the surface of the green onion, and the cut is made by air blow By blowing away, the skin on the surface peeled cleanly. There was no particular effect on the quality of the leek, such as burning.
  • the yield was 97% based on the weight before treatment.
  • the processing target is an apple, and the processing content is peeling.
  • the processing object is oyster, and the processing content is peeling.
  • the yield was 99% based on the weight before treatment.
  • the processing target is chestnuts with astringent skin, and the processing content is stripping of the astringent skin.
  • the focal length of the cylindrical lens used was 165 mm, the irradiation area was 1 x 2 mm, and the effective focus depth of the above combination lens was 15 mm.
  • Example 11 The processing target is paddy, and the processing contents are removal of rice husk from rice (hulling) and refining of white rice. 60W, 15 OH z, directly T EAC0 2 laser irradiation energy 6 ⁇ 7 J / cm 2, and 4-5 shots irradiated to chaff.
  • the focal length of the cylindrical lens used was 165 mm, the irradiation area was lx5 mm, and the effective focus depth of the combination lens was 15 mm.
  • the processing target is brown rice, and the processing content is the purification of white rice.
  • the processing target is wheat with shells, and the processing content is the removal of shells.
  • Shelled wheat was directly irradiated with 2-3 shots of TEA CO 2 laser at 60 W, 150 Hz and irradiation energy of 6-7 JZcm 2 .
  • the focal length of the cylindrical lens used was 165 mm, the irradiation area was lx5 mm, and the effective depth of focus of the combination lens was 15 mm.
  • surface treatment of root vegetables and the like can be efficiently performed without any problem such as heat ringing which adversely affects products.
  • potato peeling and bud harvesting can be performed efficiently at one time, and peeling and bud harvesting can be separated into separate steps for economical work.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

Cette invention concerne un appareil et un procédé permettant d'effectuer un traitement de surface efficace et peu coûteux sur des tubercules comestibles comme, par exemple, peler lesdits tubercules ou, encore, retirer des yeux de pommes de terre indépendamment de leur pelage ou lors de celui-ci, et ceci en produisant aussi peu de déchets que possible. Cet appareil comprend un générateur laser (3), un système optique laser (5) assurant la conduction du faisceau laser, ainsi qu'un dispositif (7) situé en travers du faisceau laser et permettant, à partir des matières premières (J), d'obtenir un produit alimentaire transformé. Le traitement de surface des matières premières permettant d'obtenir un produit alimentaire transformé consiste à peler les matières premières et à en retirer les yeux.
PCT/JP1997/000208 1996-01-30 1997-01-30 Appareil et procede permettant d'effectuer un traitement de surface sur des tubercules comestibles WO1997027765A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15561/97A AU1556197A (en) 1996-01-30 1997-01-30 Apparatus for and a method of performing surface treatment for root crops

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP8/13497 1996-01-30
JP1349796 1996-01-30
JP9/12690 1997-01-27
JP1269097 1997-01-27

Publications (1)

Publication Number Publication Date
WO1997027765A1 true WO1997027765A1 (fr) 1997-08-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178434A (ja) * 1999-12-28 2001-07-03 Semiconductor Energy Lab Co Ltd レーザ照射装置およびレーザ照射方法
NL1020698C2 (nl) * 2002-05-28 2003-12-11 Arie Van Der Knijff Inrichting voor het bewerken van bol- of knolgewassen.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358467A (en) * 1980-10-09 1982-11-09 Patel Chandra K N Method for shelling of nuts with a laser beam
JPS5983386U (ja) * 1982-11-26 1984-06-05 ヤンマー農機株式会社 玉ねぎの根茎切断装置
US4839181A (en) * 1987-11-30 1989-06-13 H. J. Heinz Company Method of removing outer protective layer from edible materials using laser energy
JPH01171468A (ja) * 1987-12-26 1989-07-06 Nkk Corp じゃがいも等の芽の除去装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358467A (en) * 1980-10-09 1982-11-09 Patel Chandra K N Method for shelling of nuts with a laser beam
JPS5983386U (ja) * 1982-11-26 1984-06-05 ヤンマー農機株式会社 玉ねぎの根茎切断装置
US4839181A (en) * 1987-11-30 1989-06-13 H. J. Heinz Company Method of removing outer protective layer from edible materials using laser energy
JPH01171468A (ja) * 1987-12-26 1989-07-06 Nkk Corp じゃがいも等の芽の除去装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178434A (ja) * 1999-12-28 2001-07-03 Semiconductor Energy Lab Co Ltd レーザ照射装置およびレーザ照射方法
JP4712147B2 (ja) * 1999-12-28 2011-06-29 株式会社半導体エネルギー研究所 レーザ照射方法、表皮が除去された物の作製方法
NL1020698C2 (nl) * 2002-05-28 2003-12-11 Arie Van Der Knijff Inrichting voor het bewerken van bol- of knolgewassen.
WO2003103419A1 (fr) * 2002-05-28 2003-12-18 Van Der Knijff Gerard Cornelis Dispositif de traitement de plantes bulbeuses ou tuberculeuses
US7433059B2 (en) 2002-05-28 2008-10-07 Gerard Cornelis Van Der Knijff Device for treating bulbous or tuberous plants

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