초록 ▼

The device makes it possible to optically inscribe and/or read at least two facing sides of disks in an optical memory system, whose disks are stacked. A linear motor displaces a mobile means incorporating recording-reading heads. These heads receive via a bidirectional optical connection data to be

The device makes it possible to optically inscribe and/or read at least two facing sides of disks in an optical memory system, whose disks are stacked. A linear motor displaces a mobile means incorporating recording-reading heads. These heads receive via a bidirectional optical connection data to be inscribed and coming from fixed light emitters-receivers. Each of the recording heads comprises two focusing lenses associated with one of the two facing sides of the disk. According to a first variant, the two sides can be read simultaneously, each of the lenses being associated with its own control device. In a second variant, a single control device is provided and the two focusing lenses are integral with one another, each side being read or inscribed in succession.

대표청구항 ▼

An optical system for the reading and recording of data media incorporated at least two stacked disks which are rotated about a common axis including at least one device comprising: a mobile assembly incorporating: (1) at least one recording-reading head with two focusing lenses having a common opti

An optical system for the reading and recording of data media incorporated at least two stacked disks which are rotated about a common axis including at least one device comprising: a mobile assembly incorporating: (1) at least one recording-reading head with two focusing lenses having a common optical axis orthogonal to the main faces of the disks, said head being disposed between two consecutive disks and associated with a facing side of each of said consecutive disks, (2) a first position control member including at least one solenoid integral with one of the two focusing lenses for controlling movement thereof along said optical axis, and (3) a second position control member including at least one solenoid integral with the other lens for controlling movement thereof along said optical axis; an intermediate member between said lenses having a channel whose walls have two windows; a plane mirror in said channel reflecting on its main faces and forming an angle of p4 radians with respect to said optical axes to reflect light transmitted through each of said windows from a light emitter to one of said lenses and reflect light from said lenses through one of said windows to a light receiver; and a housing for said mobile assembly and members including an assembly of magnetic material forming a magnetic circuit for said solenoids.