1. A light control film having a rough surface pattern defining, for each cross-section perpendicular to a base plane of the film, a profile curve along an edge contoured by the rough surface pattern, wherein for substantially all cross-sections perpendicular to a base plane of the film the profile curve has an average of absolute values of slope to said base plane \u03b8ave and has a ratio Lr=L2L1 of the length L2 of said profile curve to the length L1 of a straight line defined by intersection of said base plane and the cross-section satisfy the following:
\u03b8ave\xf7Lr\u226720 and
25\u2266\u03b8ave\xd7Lr\u226660.
2. A backlight device comprising a light guiding plate, at least one light source located at an edge thereof, said light guiding plate having a light emergent surface approximately orthogonal to said edge, and a light control film according to claim 1 located on the light emergent surface of said light guiding plate.
3. A backlight device comprising a light control film according to claim 1, a light source, and a light diffusing material between said light source and said light control film.
4. A light control film including a surface layer of a material having a refractive index n, said surface layer having a rough surface pattern defining, for each cross-section perpendicular to a base plane of the film, a profile curve along an edge contoured by the rough surface pattern, wherein for substantially all cross-sections perpendicular to a base plane of the film, the profile curve has an average of absolute values of slope of the profile curve to said base plane \u03b8ave and has a ratio Lr=L2L1 of the length L2 of said profile curve to the length L1 of a straight line defined by the intersection of said base plane and the cross sections satisfy the following Formula:
\u03b8ave\xf7Lr\xd7n2\u226740 and
50 \u2266\u03b8ave\xd7Lr\xd7n2\u2266135.
5. A backlight device comprising a light guiding plate, at least one light source located at an edge thereof, said light guiding plate having a light emergent surface approximately orthogonal to said edge, and a light control film according to claim 4 located on the light emergent surface of said light guiding plate.
6. A backlight device comprising a light control film according to claim 4, a light source, and a light diffusing material between said light source and said light control film.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for providing a troubleshooting response for a manufacturing process, said method being suitable for use in connection with a web converting manufacturing process-producing a composite product from a sequential addition of component parts during a production run of composite products, said method comprising:
automatically inspecting at a first aspect of a composite product being produced during the production run to determine a component attribute of said first aspect;
automatically determining a machine setting of a machine associated with the web converting process at the first time;
identifying a relationship between the component attribute of the first aspect and the machine setting; and
identifying a troubleshooting action based on the identified relationship between the component attribute of the first aspect and the machine setting.
2. A method as set forth in claim 1 further comprising storing the determined component attribute in a database and wherein identifying the relationship between the component attribute of the first aspect and the machine setting comprises a non-real time identification process.
3. A method as set forth in claim 1 wherein identifying the relationship between the component attribute of the first aspect and the machine setting comprises a substantially real time identification process.
4. A method as set forth in claim 1 further comprising automatically determining another machine setting of the machine associated with the web converting process and identifying a relationship between the component attribute of the first aspect and the other determined machine setting.
5. A method as set forth in claim 1 further comprising automatically determining a machine setting of another machine associated with the web converting process and identifying a relationship between the component attribute of the first aspect and the machine setting of the other machine.
6. A method as set forth in claim 1 further comprising automatically inspecting a second aspect of the composite, product to determine a component attribute of the second aspect and identifying a relationship between the component attribute of the second aspect and the machine setting.
7. A method as set forth in claim 1 further comprising:
automatically inspecting a second aspect of the composite product to determine a component attribute of the second aspect;
automatically determining another machine setting of the machine associated with the web converting process; and
identifying a relationship between the component attribute of the second aspect and the other determined machine setting.
8. A method as set forth in claim 1 further comprising:
automatically inspecting a second aspect of the composite product to determine a component attribute of the second aspect;
automatically determining a machine setting of another machine associated with the web converting process; and
identifying a relationship between the component attribute of the second aspect and the machine setting of the other machine.
9. A method as set forth in claim 1 wherein identifying the troubleshooting action comprises displaying a troubleshooting action on an operator display.
10. A method as set forth in claim 1 wherein the machine setting comprises an automatically adjustable set point and wherein identifying the troubleshooting action comprises adjusting the set point.
11. A method of automatically troubleshooting a machine, suitable for use in connection with a web converting manufacturing process having at least one machine operating at a set point and producing a composite product from a sequential addition of component parts during a production run of composite products, said method comprising: inspecting a first aspect of a composite product constructed using the web converting process and being produced during the production run, said first aspect relating to a first characteristic of the composite product; providing a first inspection parameter being indicative of a value of said first aspect of said composite product; obtaining a plurality of the first inspection parameters, each one of the obtained plurality of first inspection parameters corresponding to one of a plurality of composite products produced during the production run; determining a first mathematical characteristic associated with said obtained plurality of the first inspection parameters; and
determining one or more of a plurality of corrective actions associated with the at least one machine in response to the determined first mathematical characteristic.
12. The method as set forth in claim 11 further comprising defining a second aspect of the composite product being produced during the production run, said second aspect relating to a second characteristic of the composite product;
providing a second parameter being indicative of a value of said second aspect of said composite product;
determining a second mathematical characteristic associated with said second parameter; and
determining one or more of a plurality of corrective actions associated with the at least one machine in response to the determined first and second mathematical characteristics.
13. The method as set forth in claim 12 wherein the second parameter comprises raw material data.
14. The method as set forth in claim 12 further comprising:
inspecting a third aspect of the portion of the composite product after a third component part has been added to the portion, said third aspect relating to a third characteristic of the composite product;
providing a third inspection parameter being indicative of a value of said third aspect of said composite product;
obtaining a plurality of the third inspection parameters, each one of the obtained plurality of third inspection parameters corresponding to one of a plurality of composite products produced during the production run;
determining a third mathematical characteristic associated with said obtained plurality of the third inspection parameters; and
wherein determining the one or more of the plurality of corrective actions comprises determining the one or more of the plurality of corrective actions with the at least one machine as a function of the determined first, second, and third mathematical characteristics.