Abstract: A line-code reader having a deflection instrument with a laser, from which light in a laser-sweep pattern from an electrically controllable reflecting device is transmitted towards a rotating mirror, and via additional stationary mirrors the light is thrown down towards a product with a line-code label which is to be read. The light reflected from the line-code label is scanned by means of a photocell. The controllable reflecting device in the deflection instrument is supplied with electrical signals or voltages of a frequency or modulated with a frequency of or in the vicinity of the resonant frequency or harmonics hereof for the mechanical oscillation system of which the mirror forms a part.

Abstract: An apparatus for automatic scanning of a fingerprint by optical scanning of the fingerprint side (2) of a finger (1) comprises a scanning surface (3) with a measuring means (5) for the rate of movement of the finger in relation to the scanning surface, and with a scanning area (4), a lighting means (6), an optical system (7,8) and an electrical/optical scanning means (9) giving an electrical signal (A) as a function of the fingerprint when the finger is moved in contact with the scanning surface (3) in the direction of the arrow.The scanning is undertaken by line scanning along the scanning line (4) in that the scanning line is imaged onto the active part of the scanning means (9). The active part consists for example of a number of substantially punctiform photodiodes (10) which are coupled in the electrical circuit and receives control signals (B) so that the photodiodes are scanned successively.