IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0774763
(2001-01-31)
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발명자
/ 주소 |
- Cohen, Thomas S.
- Allen, Steven J.
- Cartier, Jr., Marc B.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
169 인용 특허 :
3 |
초록
▼
A high speed, high density electrical connector for use with printed circuit boards is described. The connector is in two pieces, each piece including columns of signal contacts and shield plates which interconnect when the two pieces are mated. The shield plates are disposed in each piece of the co
A high speed, high density electrical connector for use with printed circuit boards is described. The connector is in two pieces, each piece including columns of signal contacts and shield plates which interconnect when the two pieces are mated. The shield plates are disposed in each piece of the connector such that, when mated, the shield plates are substantially perpendicular to the shield plates in the other piece of the connector. The shields have a grounding arrangement that is adapted to control the electromagnetic fields for various system architectures, simultaneous switching configurations and signal speeds. Additionally, at least one piece of the connector is manufactured from wafers, with each ground plane and signal column injection molded into components which, when combined, form a wafer.
대표청구항
▼
A high speed, high density electrical connector for use with printed circuit boards is described. The connector is in two pieces, each piece including columns of signal contacts and shield plates which interconnect when the two pieces are mated. The shield plates are disposed in each piece of the co
A high speed, high density electrical connector for use with printed circuit boards is described. The connector is in two pieces, each piece including columns of signal contacts and shield plates which interconnect when the two pieces are mated. The shield plates are disposed in each piece of the connector such that, when mated, the shield plates are substantially perpendicular to the shield plates in the other piece of the connector. The shields have a grounding arrangement that is adapted to control the electromagnetic fields for various system architectures, simultaneous switching configurations and signal speeds. Additionally, at least one piece of the connector is manufactured from wafers, with each ground plane and signal column injection molded into components which, when combined, form a wafer. he fitting direction. 5. A connector according to claim 1 wherein said first and second ends of the pressure contact region comprise strain relieving channels adapted to grip said flat cable between said housing and cover. 6. A connector according to claim 5 wherein the strain relieving channels are formed by maintaining ribs formed on the housing and corresponding maintaining grooves formed on the cover. 7. A connector according to claim 5, wherein said housing has opposite protrusions adapted to locate said cable laterally in said region, and wherein said protrusions define shaped guiding members for engagement with corresponding shaped guiding members of said cover. 8. A connector according to claim 7 wherein said shaped guiding members comprise mutually engageable grooves and ribs. 9. A connector according to claim 8 wherein two parallel grooves are provided on a first side of said cover and two parallel grooves are provided on a second side of said cover, and wherein locking projections are provided between said grooves on said first and second sides of said cover for engagement in corresponding locking recesses of said housing. 10. A connector according to claim 1 wherein said housing has opposite protrusions adapted to locate said cable laterally in said region. 11. A connector according to claim 10 wherein said protrusions define shaped guiding members for engagement with corresponding shaped guiding members of said cover. 12. A connector according to claim 11 wherein said shaped guiding members comprise mutually engageable grooves and ribs. 13. A connector according to claim 12 wherein two parallel grooves are provided on a first side of said cover and two parallel grooves are provided on a second side of said cover, and wherein locking projections are provided between said grooves on said first and second sides of said cover for engagement in corresponding locking recesses of said housing. 14. A connector according to claim 1 wherein said cover is attachable to said housing by mutually engageable locking members. second plane including the top of the directionality-providing element and perpendicular to the first plane has a top of a second directionality-providing element and a shape of a continuous wave. 2. A directional diffusing film according to claim 1, wherein the shape of the continuous wave is a periodic waveform having a period corresponding to each of the first and second directionality-providing elements. 3. A directional diffusing film according to claim 2, wherein the periodic waveform is a substantially sinusoidal waveform. 4. A directional diffusing film according to claim 1, wherein the shape of the continuous wave is a periodic waveform having wavy parts corresponding to the directionality-providing elements and straight parts respectively extending between the adjacent wavy parts. 5. A directional diffusing film according to claim 1, wherein the section of the first directionality-providing element in the first plane has a substantially isosceles triangular shape. 6. A directional diffusing film according to claim 1, wherein the substantially triangular shape has a vertex angle of a range of 80° to 100°. 7. A directional diffusing film according to claim 1, wherein the substantially triangular shape has a vertex which is rounded and/or a predetermined amount of which is cut off. 8. A directional diffusing film according to claim 1, wherein the plurality of convex directionality-providing elements are arranged on a light emitting surface of the base film so that incident light falling on the directional diffusing film at incident angles in a range of 70° to 80° leaves the directional diffusing film at outgoing angles including a maximum outgoing angle in a range of 25° to 40°. 9. A directional diffusing film according to claim 1 wherein the plurality of convex directionality-providing elements are arranged on a light emitting surface of the base film so that a haze value is in a range of 70 to 90 when light falls on a light receiving surface of the base film. 10. A surface light source unit comprising: a light source, a surface light emitting means having a light-emitting surface that can emit a light from the light source in a predetermined direction, and a directional diffusing film that includes a base film, and a plurality of convex directionality-providing elements regularly arranged on at least one surface of the base film, wherein a section of a first directionality-providing element in a first plane including a top of the directionality-providing element has a substantially triangular shape, and a section of the directionality-providing element in a second plane including the top of the directionality-providing element and perpendicular to the first plane has a top of a second directionality-providing element and a shape of a continuous wave. 11. A liquid crystal display comprising: a light source, a surface light emitting means having a light-emitting surface that can emit a light from the light source in a predetermined direction, a directional diffusing film that includes a base film, and a plurality of convex directionality-providing elements regularly arranged on at least one surface of the base film, and a transparent liquid-crystal element arranged on a light-emitting side of the directional diffusing film, wherein a section of a first directionality-providing element in a first plane including a top of the directionality-providing element has a substantially triangular shape, and a section of the directionality-providing element in a second plane including the top of the directionality-providing element and perpendicular to the first plane has a top of a second directionality-providing element and a shape of a continuous wave.
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