 |
 |
| |
I get a numerical matrix that calculates thicknesses at different points and it connects the dots to make the surface. Once I get that, I have to convert all of this data to make the surface into language that the numerical control machine downstairs will be able to understand. So I go downstairs to lens fab. They take my disks that I save all this data on. They plug it into the computer, and their program does a surface for the mold.
[The landing data is a measurement of] where the electron beam is hitting the phosphor, and figuring out how far off the beam is from the phosphor, because in an ideal situation, the beam is supposed to hit dead on to the phosphor (for maximum brightness and picture quality). Now, there are certain magnetic forces working on the electron beams inside of the CRT (a good understanding of physics is needed to get this), which affect the beam's path to the screen. So instead of changing that, which is extraordinarily difficult since, well, the earth's magnetic field is a big, constant, on-going thing, they have me reprint the stripe on the screen to match up with where the beam is striking. That's where the landing data comes in.
|
|
 |
|
