IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0937988
(2001-02-01)
|
우선권정보 |
JP-2000-026707(2000-02-03) |
국제출원번호 |
PCT/JP01/000729
(2001-02-01)
|
§371/§102 date |
20020102
(20020102)
|
국제공개번호 |
WO01/057504
(2001-08-09)
|
발명자
/ 주소 |
- Yamagishi,Takahiro
- Tamura,Shigeki
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
26 인용 특허 :
9 |
초록
▼
The present invention is a method and an apparatus for imaging a liquid-filling container in which a light emitting unit is provided for emitting and irradiating light onto the container and a light receiving unit is provided for receiving the light transmitted through the container. The object of t
The present invention is a method and an apparatus for imaging a liquid-filling container in which a light emitting unit is provided for emitting and irradiating light onto the container and a light receiving unit is provided for receiving the light transmitted through the container. The object of the present invention is to provide such a method and an apparatus for imaging a liquid-filling container. This method and apparatus assures reliable detection of the surface of liquid filled in a container or of foreign substance mixed in the liquid or present in the container or the container material not only when the container is transparent, but also when the container is a colored container of a dark color such as black, dark green or dark brown or the container has a frosted surface of when the liquid filled in the container has a dark color. For accomplishing this object, according to the present invention, the light emitting unit emits near infrared light or the light receiving unit receives near infrared light for imaging the container.
대표청구항
▼
What is claimed is: 1. A method of imaging a liquid-filling container, comprising the steps of: emitting and irradiating light onto the container by a light emitting unit, receiving the light transmitted through the container by a light recieving unit, and imaging inside of the container based on i
What is claimed is: 1. A method of imaging a liquid-filling container, comprising the steps of: emitting and irradiating light onto the container by a light emitting unit, receiving the light transmitted through the container by a light recieving unit, and imaging inside of the container based on information about the transmitted light, wherein said light emitting unit emits and irradiates a near infrared light with a wavelength of 700 to 900 nm as said light for imaging inside of the container, and the container is one of a colored container and a container with a frost surface. 2. The method according to claim 1, wherein said light emitting unit comprises a light emitter and a cut filter for filtering light from the light emitter so as to transmit only near infrared light component of the light or a greater amount of near infrared light component than visible light component of the light. 3. The method according to claim 1, wherein said light emitting unit and said light receiving unit are disposed so as to enable imaging of a container which are conveyed one after another along a conveying line. 4. The method according to claim 1, further including the step of detecting an amount of liquid filled in the container. 5. The method according to claim 1, further including the step of detecting any foreign substance present in the liquid filled in the container. 6. The method according to claim 1, further including the step of detecting any foreign substance present in the container or in a material forming the container. 7. A method of imaging a liquid-filling container, comprising the steps of: emitting and irradiating light onto the container by a light emitting unit, receiving the light transmitted through the container by a light recieving unit, and imaging inside of the container based on information about the transmitted light, wherein said light receiving unit receives a near infrared light with a wavelength of 700 to 900 nm as said light for imaging inside of the container, and the container is one of a colored container and a container with a frost surface. 8. The method according to claim 7, wherein said light receiving unit comprises a cut filter for filtering the light transmitted through the containers so as to selectively transmit only near infrared component of the light or a greater amount of near infrared light component than visible light component of the light and a light receiver for receiving the light transmitted through the cut filter. 9. The apparatus according to claim 7, wherein said light emitting unit and said light recieving unit are disposed so as to enable imaging of a container which are conveyed one after another along a conveying line. 10. The method according to claim 7, further including the step of detecting an amount of liquid filled in the container. 11. The method according to claim 7, further including the step of detecting any foreign substance present in the liquid filled in the container. 12. The method according to claim 7, further including the step of detecting any foreign substance present in the container or in a material forming the container. 13. An apparatus for imaging a liquid-filling container comprising: a light emitting unit for emitting and irradiating light onto the container, and a light receiving unit for receiving the light transmitted through the container, wherein said light emitting unit emits and irradiates a near infrared light with a wavelength of 700 to 900 nm as said light for imaging inside of the container, and the container is one of a colored container and a container with a frost surface. 14. The apparatus according to claim 13, wherein said light emitting unit comprises a light emitter and a cut filter for filtering light from the light emitter so as to transmit only near infrared component of the light or a greater amount of near infrared light component of the light than visible light component thereof. 15. The apparatus according to any one of claim 13, wherein said light emitting unit and said light receiving unit are disposed so as to enable imaging of said container which is conveyed one after another along a conveying line. 16. The apparatus according to claim 13, wherein an amount of liquid filled in the container is detected. 17. The apparatus according to claim 13, wherein any foreign substance present in the liquid filled in the container is detected. 18. The apparatus according to claim 13, wherein any foreign substance present in the container or in a material forming the container is detected. 19. An apparatus for imaging a liquid-filling container, comprising: a light emitting unit for emitting and irradiating light onto the container, and a light receiving unit for receiving the light transmitted through the container, wherein said light receiving unit receives a near infrared light with a wavelength of 700 to 900 nm as said light for imaging inside of the container, and the container is one of a colored container and a container with a frost surface. 20. The apparatus according to claim 19, wherein said light receiving unit comprises a cut filter for filtering the light transmitted through the container so as to transmit only near infrared component of the light or a greater amount of near infrared light component than visible light component of the light and a light receiver for receiving the light transmitted through the cut filter. 21. The apparatus according to claim 19, wherein said light emitting unit and said light receiving unit are disposed so as to enable imaging of said container which is conveyed one after another along a conveying line. 22. The apparatus according to claim 19, wherein an amount of liquid filled in the container is detected. 23. The apparatus according to claim 19, wherein any foreign substance present in the liquid filled in the container is detected. 24. The apparatus according to claim 16, wherein any foreign substance present in the container or in a material forming the container is detected.
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