IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0905104
(2001-07-16)
|
우선권정보 |
JP-0163078 (1997-06-19); JP-0168369 (1998-06-16) |
발명자
/ 주소 |
- Ban, Yutaka
- Omata, Kazuhiko
- Miyazaki, Kyota
- Murakami, Ayumu
|
출원인 / 주소 |
|
대리인 / 주소 |
Fitzpatrick, Cella, Harper & Scinto
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인용정보 |
피인용 횟수 :
25 인용 특허 :
22 |
초록
▼
A toner supply container detachably mountable to a main assembly of an electrophotographic image forming apparatus includes (a) a toner accommodating portion for accommodating toner; (b) a toner supply opening for discharging toner accommodated in the toner accommodating portion; (c) a toner feeding
A toner supply container detachably mountable to a main assembly of an electrophotographic image forming apparatus includes (a) a toner accommodating portion for accommodating toner; (b) a toner supply opening for discharging toner accommodated in the toner accommodating portion; (c) a toner feeding member for feeding the toner accommodated in the toner accommodating portion toward the toner supply opening by rotation thereof, wherein a center of rotation of the toner feeding member is in an opening region of the toner supply port as seen in the longitudinal direction of the toner feeding member. The toner feeding member is rotated by a drive force transmitted through a transmitting member. The transmitting member is slidable relative to the feeding member and hermetically seals the opening.
대표청구항
▼
A toner supply container detachably mountable to a main assembly of an electrophotographic image forming apparatus includes (a) a toner accommodating portion for accommodating toner; (b) a toner supply opening for discharging toner accommodated in the toner accommodating portion; (c) a toner feeding
A toner supply container detachably mountable to a main assembly of an electrophotographic image forming apparatus includes (a) a toner accommodating portion for accommodating toner; (b) a toner supply opening for discharging toner accommodated in the toner accommodating portion; (c) a toner feeding member for feeding the toner accommodated in the toner accommodating portion toward the toner supply opening by rotation thereof, wherein a center of rotation of the toner feeding member is in an opening region of the toner supply port as seen in the longitudinal direction of the toner feeding member. The toner feeding member is rotated by a drive force transmitted through a transmitting member. The transmitting member is slidable relative to the feeding member and hermetically seals the opening. wherein attaching the polarization-maintaining fiber to a multimode fiber comprises fusion-splicing the polarization-maintaining fiber to the multimode fiber. 17. A tapered polarization-maintaining fiber, comprising: a tapered multimode fiber having a gradient-index core, wherein the multimode fiber is terminated with a radius of curvature, wherein the radius of curvature ranges from 5 to 30 μm; and a polarization-maintaining fiber attached to the tapered multimode fiber. ed wavelength division multiplexing device as defined in claim 1, wherein the effective focal length of each of the plurality of patterned optical input components differs. 7. The improved wavelength division multiplexing device as defined in claim 6, wherein the effective focal length of the patterned optical output component differs from the effective focal length of each of the plurality of patterned optical input components. 8. The improved wavelength division multiplexing device as defined in claim 1, wherein at least some of the plurality of patterned optical input components and the patterned optical output component are formed on a common substrate. 9. The improved wavelength division multiplexing device as defined in claim 1, wherein each of the plurality of optical sources is one of an optical input fiber and a laser diode. 10. The improved wavelength division multiplexing device as defined in claim 1, wherein each of the plurality of optical sources is an optical input fiber. 11. The improved wavelength division multiplexing device as defined in claim 10, wherein each of the plurality of narrowband optical beams is received from a corresponding one of the plurality of optical input fibers, wherein each of the plurality of optical input fibers is disposed from a corresponding one of the plurality of patterned optical input components at a distance defined by: wherein f is the effective focal length of the corresponding one of the plurality of patterned optical input components, dois a Gaussian mode field diameter of the optical input fiber, and λ is the wavelength associated with the narrowband optical beam being received from the optical input fiber. 12. The improved wavelength division multiplexing device as defined in claim 11, wherein the distance between each of the plurality of optical input fibers and each corresponding one of the plurality of patterned optical input components varies with wavelength. 13. The improved wavelength division multiplexing device as defined in claim 11, wherein the effective focal length of each of the plurality of patterned optical input components differs so that the distance between each of the plurality of optical input fibers and each corresponding one of the plurality of patterned optical input components does not vary with wavelength. 14. The improved wavelength division multiplexing device as defined in claim 1, wherein the optical receiver is an optical output fiber. 15. The improved wavelength division multiplexing device as defined in claim 14, wherein the multiplexed, polychromatic optical beam is transmitted to the optical output fiber, wherein the optical output fiber is disposed from the corresponding patterned optical output component at a distance defined by: wherein f is the effective focal length of the corresponding patterned optical output component, dois a Gaussian mode field diameter of the optical output fiber, and λ is the average wavelength associated with the multiplexed, polychromatic optical beam being transmitted to the optical output fiber. 16. The improved wavelength division multiplexing device as defined in claim 1, wherein the spacing between each of the plurality of optical sources, as well as the spacing between each of the corresponding plurality of patterned optical input components, increases as the difference between the wavelengths associated with each of the plurality of narrowband optical beams being received from corresponding ones of the plurality of optical sources increases. 17. The improved wavelength division multiplexing device as defined in claim 1, wherein the plurality of patterned optical input components comprises: a plurality of patterned phase masks, each of the plurality of patterned phase masks for introducing the first patterned phase delay into a corresponding one of the plurality of narrowband optical beams. 18. The improved wavelength division multiplexing device as defined in claim 17, wherein each of the plurality of patterned phase masks is formed on a corresponding collimating microlens. 19. The improved wavelength division multiplexing device as defined in claim 17, wherein each of the plurality of patterned phase masks is formed in a corresponding collimating microlens. 20. The improved wavelength division multiplexing device as defined in claim 17, wherein the plurality of patterned optical input components further comprises: a plurality of collimating microlenses, each of the plurality of collimating microlenses for collimating a corresponding one of the plurality of narrowband optical beams. 21. The improved wavelength division multiplexing device as defined in claim 17, wherein each of the plurality of patterned phase masks has a periodic phase profile. 22. The improved wavelength division multiplexing device as defined in claim 21, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having a peak, wherein the periodic phase profile of each patterned phase mask contributes to a flattening of the peak of the gaussian-shaped passband of the improved wavelength division multiplexing device. 23. The improved wavelength division multiplexing device as defined in claim 21, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having sideband slopes, wherein the periodic phase profile of each patterned phase mask contributes to a steepening of the sideband slopes of the gaussian-shaped passband of the improved wavelength division multiplexing device. 24. The improved wavelength division multiplexing device as defined in claim 17, wherein each of the plurality of patterned phase masks has a non-periodic phase profile. 25. The improved wavelength division multiplexing device as defined in claim 24, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having a peak, wherein the non-periodic phase profile of each patterned phase mask contributes to a flattening of the peak of the gaussian-shaped passband of the improved wavelength division multiplexing device. 26. The improved wavelength division multiplexing device as defined in claim 24, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having sideband slopes, wherein the non-periodic phase profile of each patterned phase mask contributes to a steepening of the sideband slopes of the gaussian-shaped passband of the improved wavelength division multiplexing device. 27. The improved wavelength division multiplexing device as defined in claim 17, wherein each of the plurality of patterned phase masks has a modulated periodic phase profile. 28. The improved wavelength division multiplexing device as defined in claim 1, wherein the patterned optical output components comprises: a patterned phase mask for introducing the second patterned phase delay into the multiplexed, polychromatic optical beam. 29. The improved wavelength division multiplexing device as defined, in claim 28, wherein the patterned phase mask is formed on a focusing microlens. 30. The improved wavelength division multiplexing device as defined in claim 28, wherein the patterned phase mask is formed in a focusing microlens. 31. The improved wavelength division multiplexing device as defined in claim 28, wherein the patterned optical output component further comprises: a focusing microlens for focusing the multiplexed, polychromatic optical beam. 32. The improved wavelength division multiplexing device as defined in claim 28, wherein the patterned phase mask has a periodic phase profile. 33. The improved wavelength division multiplexing device as defined in claim 32, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having a peak, wherein the periodic phase profile of the patterned phase mask contributes to a fl attening of the peak of the gaussian-shaped passband of the improved wavelength division multiplexing device. 34. The improved wavelength division multiplexing device as defined in claim 32, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having sideband slopes, wherein the periodic phase profile of the patterned phase mask contributes to a steepening of the sideband slopes of the gaussian-shaped pass band of the improved wavelength division multiplexing device. 35. The improved wavelength division multiplexing device as defined in claim 28, wherein the patterned phase mask has a non-periodic phase profile. 36. The improved wavelength division multiplexing device as defined in claim 35, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having a peak, wherein the non-periodic phase profile of the patterned phase mask contributes to a flattening of the peak of the gaussian-shaped passband of the improved wavelength division multiplexing device. 37. The improved wavelength division multiplexing device as defined in claim 35, wherein the passband of the improved wavelength division multiplexing device is a gaussian-shaped passband having sideband slopes, wherein the non-periodic phase profile of the patterned phase mask contributes to a steepening of the sideband slopes of the gaussian-shaped passband of the improved wavelength division multiplexing device. 38. The improved wavelength division multiplexing device as defined in claim 28, wherein the patterned phase mask has a modulated periodic phase profile. 39. An improved wavelength division demultiplexing device having a diffraction grating for separating a multiplexed, polychromatic optical beam into a plurality of narrowband optical beams, the multiplexed, polychromatic optical beam being received from a corresponding optical source, the plurality of narrowband optical beams being transmitted to a corresponding plurality of optical receivers, the improvement comprising: a patterned optical input component corresponding to the multiplexed, polychromatic optical beam and the optical source for introducing a first patterned phase delay into the multiplexed, polychromatic optical beam, the patterned optical input component having an effective focal length such that the optical source is disposed substantially inside the effective focal length of the patterned optical input component; and a plurality of patterned optical output components corresponding to the plurality of narrowband optical beams and the plurality of optical receivers for introducing a second patterned phase delay into the plurality of narrowband optical beams, each of the plurality of patterned optical output components having an effective focal length such that each of the plurality of optical receivers is disposed substantially inside the effective focal length of a corresponding one of the plurality of patterned optical output components; wherein the first patterned phase delay and the second patterned phase delay are added so as to reshape the passband of the improved wavelength division demultiplexing device. 40. The improved wavelength division demultiplexing device as defined in claim 39, wherein the effective focal length of each of the plurality of patterned optical output components is the same. 41. The improved wavelength division demultiplexing device as defined in claim 40, wherein the effective focal length of each of the plurality of patterned optical output components is derived from a quadratic phase term that is inherent in each of the plurality of patterned optical output components. 42. The improved wavelength division demultiplexing device as defined in claim 40, wherein the effective focal length of the patterned optical input component is the same as the effective focal length of each of the plurality of patterned optical output components. 43. The improved wavelength d
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