DE1984325U - READER FOR SCANNING OPTICAL INFORMATION. - Google Patents

Description

KA.117994 * 28.2.68 ^

Jos ο Schneider & Co *, Optische ¥ erke, Bad Kreuznach '** = ■ - <- " "Reading device for scanning optical information,"

The innovation relates to a reader for scanning optical Information with light reflected on the information carrier, wherein to generate the reflecting light, at least one fiber optic component as a lighting element and for the purpose of utilizing the reflected light. Light is provided for scanning a fiber optic component with ordered fibers as a scanning element.

The innovation sets the task of reducing the light-dark ratio in the reflection to increase the scanning of the optical information. °. to improve the operation of a known device!

luminous and the scanning element at a defined distance in front of the

S information carrier surface are arranged at an angle, is according to the Neue-J; tion provided that the information carrier facing ends of the scanning and to arrange the lighting elements relative to one another in such a way that no stray light from the lighting element reaches the scanning element. To In one embodiment, the scanning and lighting elements are arranged parallel to one another. In particular, it is provided that the elements • to mix 5 forming single fibers «

& According to a further embodiment, the in the production of the

"Abrasive element from individual fibers inevitably arising interspaces

me from the passers belonging to the lighting element with smaller ones Filled in diameters.

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It is expedient to use the diameter to be introduced into the spaces Fibers of the lighting element to be dimensioned with at least approximately d = 0.83 r, where r is the radius of the fiber of the scanning element is. The optimum is at a diameter of d = 0.83 r,

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Another embodiment of the innovation is that the scanning element is arranged at an angle to a lighting element, between these expediently a holding body with reflective Surface is located.

The drawing illustrates three exemplary embodiments according to the innovation.
Show it:

Fig. 1 is a schematic plan view of an information carrier. L, a scanning element A and two lighting elements B ₁ and B

JL et

2 shows an oblique image through a schematic arrangement of the fibers Ap of the sensing element A and the fibers Bp of the lighting elements B

3 shows a schematic plan view of an information carrier L, a sensing element A, a lighting element B and a holding body D.

In FIG. 1, L denotes an information carrier which “can be” a card, a tape or the like. Two tape-shaped fiber optic cables B and B ₃ serving as a lighting element end closely in front of this information carrier. These fiber optic cables are disordered "parallel to them, is arranged a fiber-optic ^ also tape-shaped cable A for transmission of the reflecting on the information carrier L light beams to a remote receiver" Further, in the illumination elements B ₁ and B_ the ¥ one each EC by a Beleuchtungsq_uelle outgoing light - »Beam S ₁ , S ₃ on the information carrier in the scanning element A shown schematically.

2 shows the interstices formed by the fibers Ag, of a scanning element A, of smaller diameter fibers Bj of the lighting element B _{e consisting of the entirety of the fibers B ^}

3 shows a schematic plan view of an information carrier L with a scanning element A, which is angled to a lighting element B.

"3 -

Claims (2)

- 3 -RA.117991 * 28.2.68 s, is arranged so that the light coming from the lighting element B is reflected on the information carrier L and falls into the scanning element A in a suitable position a holding body D with a reflective surface is arranged so that the light falling on the reflective surface of the holding body D is additionally directed via the information carrier L into the scanning element A in order to avoid light losses , which after passing through the lighting element B is reflected on one surface of the holding body D to the information carrier L and from there after reflection on the other surface of the holding body D reaches the scanning element A »Protection claims: 1.) Reader for scanning optical information on the information carrier reflective light, being used to generate the reflective Light at least one fiber optic component as a lighting element and for the purpose of utilizing the reflected light for scanning a fiber optic component with ordered lines as a scanning element is provided, characterized in that the lighting element (B ,, B-) and scanning element (Α) to avoid the scattered light are arranged parallel to each other. 2.) Reading device for scanning optical information with light reflecting on the information carrier according to claim 1, characterized in that the pasers of the lighting element (B ,, B ₂ ) and scanning element (A) are mixed with one another. _ 4 - Reading device for scanning optical information with light reflecting on the information carrier according to claim 2, characterized in that the strands of the lighting element (B ₁ JB-) are arranged, at least partially, in the spaces formed by the fibers of the scanning element (A) are" 4 ») Reading device for scanning optical information with light reflecting on the information carrier according to claim 3, characterized in that the lines of the lighting element (B ₁ , Ep) located in the spaces formed by the lines of the scanning element (a) are smaller in diameter than the Pasern the sensing element (A) « 5e) Reader for scanning optical information on the information carrier reflective light, with at least one fiber optic component as a lighting element to generate the reflective light and for the purpose of using the reflected light for scanning a fiber optic component with ordered lines as a scanning element is provided, characterized in that the scanning element (A) is arranged at an angle to the lighting element (B) is, with a holding body D with a reflective surface is conveniently located between these «