FIELD: optical data carriers.
SUBSTANCE: optical scanning device for information carrier has emission source, collimator lens assembly, objective lens assembly and drive for moving assembly of collimator lens, drive has moving and immovable portions, movement of which relatively to each other is limited, while immovable and moving portions of drive are in the same magnetic circuit, having immovable magnetizable portion contained in moving portion of drive, aforementioned first and second positions of which are balanced positions. Device is made with possible control by means of adjustment of electric current by interaction between electromagnetic field of inductiveness coil and magnetic field of constant magnet.
EFFECT: possible production of reliable and functional drive for moving collimator assembly.
2 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICAL SCANNING UNIT | 1986 |
|
RU2037860C1 |
| OPTICAL DEVICE OF INFORMATION READING, OPTICAL DISC DRIVE AND OPTICAL INFORMATION DEVICE | 2007 |
|
RU2428750C2 |
| OPTICAL SCANNING SYSTEM OF LASER PRINTER | 0 |
|
SU1767467A1 |
| OPTICAL HEAD DEVICE AND DIFFRACTION ELEMENT, OPTICAL DATA DEVICE, COMPUTER, DISC PLAYER, AUTOMOBILE NAVIGATION SYSTEM, OPTICAL DISC RECORDING DEVICE AND VEHICLE | 2007 |
|
RU2437173C2 |
| COMPATIBLE OPTICAL SCANNING DEVICE | 1992 |
|
RU2096836C1 |
| OPTICAL HEAD TO WRITE ON OPTICAL DISK AND/OR READING OFF FROM OPTICAL DISK PHASE-ONLY SYNTHETIC HOLOGRAM TO BE USED IN SAID OPTICAL HEAD | 2006 |
|
RU2429550C2 |
| OPTICAL SCANNING DEVICE | 0 |
|
SU1107094A1 |
| OPTIC SCANNING SYSTEM | 1991 |
|
RU2018169C1 |
| OPTICAL SCANNING DEVICE | 0 |
|
SU1403830A1 |
| OPTICAL ILLUMINATION APPARATUS AND METHOD | 2008 |
|
RU2510060C2 |
