Optical connector assembly

• US 5,283,680 A
• Filed: 06/18/1992
• Issued: 02/01/1994
• Est. Priority Date: 10/27/1988
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Komatsu Seisakusho
• Original Assignee: Kabushiki Kaisha Komatsu Seisakusho
• Inventors: Suzuki, Yasuyoshi, Okugawa, Minoru, Moritoki, Masakazu
• Primary Examiner(s): Chilcot, Jr., Richard E.
• Assistant Examiner(s): BACARES, RAFAEL D
• Application Number:
  US07/900,841
• Time in Patent Office: 593 Days
• Field of Search: 359/109, 359/142, 359/143, 359/144, 359/146, 359/154, 359/162, 359/180, 359/181, 359/188
• US Class Current: 398/200
• CPC Class Codes: B24B 19/226 of the ends of optical fibres
• CPC Class Codes: G02B 6/3863 fabricated by using polishing techniques grinding of the fibre ends B24B19/226
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4202 for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements

Abstract

An optical connector assembly (1) for connecting an optical fiber (9), an optical element (4) (light-emitting element or light-receiving element), and an electric 5 circuit together. A bolt (32) of an optical fiber-mounting fitting in which the optical fiber (9) is inserted in the hole of an electric seal (32) and a bolt (31), is screwed into a threaded hole formed in a housing (2) of the plug (1) that accommodates the optical element (4) in order to couple the optical fiber (9) to the plug (1). The connection between the optical element (4) and the electric circuit is accomplished by a jack (20) and the plug (1) is provided with a lock mechanism based on a push-type lever (20), featuring improved sealing performance against water, oil, dust and dirt.

Claims

1. An optical connector assembly for connecting optical fibers, comprising:

a switching circuit which is switched to an on or off status responsive to data sent to said circuit;

a light-emitting diode connected with said switching circuit, said light-emitting diode being turned on or off in response to the status of the switching circuit;

an optical fiber means comprising a plurality of optical fibers for transmitting light emitted from the light-emitting diode, each of said optical fibers having a different length;

resistor means including a plurality of fixed resistors having different resistance values corresponding to said different lengths of optical fibers, one end of said resistor means connected in parallel with one terminal of the light-emitting diode;

a plurality of first power supply terminals, each of said terminals connected in series with each of the other ends of the plurality of fixed resistors, each of said first power supply terminals having the same polarity;

a data supply terminal connected to the switching circuit for supplying transmission data;

a second power supply terminal connected to the switching circuit, said second power supply terminal having a polarity different from that of said first power supply terminals; and

power source means connected to one of the plurality of first power supply terminals and to the second power supply terminal for supplying power to the light-emitting diode,

wherein the switching circuit, the light-emitting diode and the resistor means are built in a single module having said first power supply terminals, said second power supply terminal and said data supply terminal.

2. An optical connector assembly for connecting optical fibers, comprising:

a switching circuit which is switched to an on or off status responsive to data sent to said circuit;

a light-emitting diode connected with said switching circuit, said light-emitting diode being turned on or off in response to said status of the switching circuit;

optical fiber means for transmitting light emitted from the light-emitting diode, said optical fiber means comprising a plurality of optical fibers, each of said optical fibers being of different lengths;

resistor means including a plurality of fixed resistors being connected in series so as to have a plurality of different series composite resistance values, corresponding of said different lengths of said optical fibers, said fixed resistors being connected in series with said light-emitting diode;

a plurality of first power supply terminals, each of said first power supply terminals connected to each of said series-connected fixed resistors and having the same polarity;

a data supply terminal connected to the switching circuit for supplying transmission data;

a second power supply terminal connected of the switching circuit and having a polarity different from said first power supply terminals; and

power source means connected to one of said plurality of first power supply terminals and the second power supply terminal, for supplying power to the light-emitting diode,

wherein the switching circuit, the light-emitting diode and the resistor means are built in a signal module having said first power supply terminals, said second power supply terminal and said data supply terminal.