[Lens]
The lens assembly [B] consists of 6 lenses to transfer the image to the
photoelectric elements of the CCD. It is possible to adjust the focus by
moving the lens assembly.
[Shading Plate]
Compared with the ends, the middle of the lamp is too bright. To correct this,
a shading plate [A] is placed in front of the lens. This blocks some of the light
and distributes it more uniformly.
[CCD (Charge Coupled Device)]
The CCD [C] is a solid-state device similar to a photodiode array, but unlike a
photodiode array, a CCD can read one complete scan line at a time. The
CCD produces an analog signal which is converted into a digital signal in the
A/D conversion PCB.
[C]
[A]
[B]
1 December 1993
2-16
Содержание VT3500
Страница 8: ...2 6 USER CODE MODE 4 27 2 6 1 User Codes 4 27 2 6 2 How To Use a User Code 4 27...
Страница 15: ...SECTION 1 OVERALL MACHINE INFORMATION...
Страница 19: ...2 GUIDETOCOMPONENTSANDTHEIRFUNCTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 December 1993 1 5...
Страница 21: ...16 17 18 19 20 21 22 23 24 25 26 27 28 1 December 1993 1 7...
Страница 37: ...SECTION 2 SECTIONAL DESCRIPTION...
Страница 89: ...E H D G F D C A B C I J K 1 December 1993 2 53...
Страница 123: ...1 December 1993 2 87...
Страница 127: ...1 December 1993 2 91...
Страница 161: ...Background Patterns The 40 background patterns shown below can be selected 1 2 3 4 5 6 7 8 9 1 December 1993 2 125...
Страница 162: ...13 14 15 16 17 18 10 11 12 1 December 1993 2 126...
Страница 163: ...19 20 21 22 23 24 25 26 27 1 December 1993 2 127...
Страница 164: ...28 29 30 31 32 33 34 35 36 1 December 1993 2 128...
Страница 165: ...37 38 39 40 1 December 1993 2 129...
Страница 192: ...SECTION 3 INSTALLATION...
Страница 206: ...SECTION 4 SERVICE TABLES...
Страница 209: ...Q Fig 4 R S Fig 5 T U Fig 6 V Fig 7 1 December 1993 4 3...
Страница 234: ...SECTION 5 REPLACEMENT AND ADJUSTMENT...
Страница 317: ...SECTION 6 TROUBLESHOOTING...