Apparatus for distributing light signals among a plurality of receivers

• US 4,062,043 A
• Filed: 03/25/1975
• Issued: 12/06/1977
• Est. Priority Date: 03/28/1974
• Status: Expired due to Term

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Auracher, Franz, Zeidler, Guenter
• Primary Examiner(s): Martin, John C.
• Application Number:
  US05/561,843
• Time in Patent Office: 987 Days
• Field of Search: 250/199, 250/227, 178/DIG. 2, 178/DIG. 13, 178/DIG. 1, 340/380, 350/96 R, 350/96 B, 350/96 C, 350/96 WG, 350/169, 350/171, 350/172, 325/308, 358/86
• US Class Current: 725/144
• CPC Class Codes: G02B 5/32 Holograms used as optical elements
• CPC Class Codes: G02B 6/2848 having refractive means, e.g. imaging elements between light guides as splitting, branching and/or combining devices, e.g. lenses, holograms
• CPC Class Codes: G02B 6/4203 Optical features
• CPC Class Codes: G02B 6/4206 Optical features G02B6/4207, G02B6/421 take precedence
• CPC Class Codes: G02B 6/425 Optical features semiconductor laser arrays H01S5/40; hybrid LED arrays H01L25/0753; monolithic LED arrays H01L27/153
• CPC Class Codes: H04N 7/22 Adaptations for optical transmission

Abstract

An optical transmitter, a plurality of optical receivers and light wave guides operatively interconnecting the transmitter and receivers. In one embodiment the transmitter has a light emission surface in the order of a plurality of light wave guide cross-sections and the ends of the light wave guides thereadjacent are disposed in close side-by-side relation to one another and in close proximity to the light emission surface of the transmitter. In other embodiments the transmitter has a light emission surface in the order of a single light wave guide cross-section and interposed between the light emission surface and the light wave guides is an optics system.

Claims

1. Apparatus for the distribution of light signals from at least one optical transmitter to a plurality of receivers for the distribution of television programs among a plurality of television receivers comprising an optical transmitter having a light emission surface in the order of one light wave guide cross-section, a plurality of light wave guides for operatively interconnecting said optical transmitter with a plurality of optical receivers, and a beam-expanding optics disposed between the light emission surface of said optical transmitter and one of the ends of each of said light wave guides, said optics comprising a partially transmissive reflector system having concave reflectors.

2. Apparatus for the distribution of light signals from at least one laser transmitter to a plurality of receivers for the distribution of television programs among a plurality of television receivers comprising a diode having a light emitting surface, a plurality of light wave guide cross-sections having a total area no greater than the area of said light emitting surface, a plurality of optical receivers, and a plurality of light wave guides corresponding in number to the number of said light wave guide cross-sections for operatively interconnecting said laser transmitter and said optical receivers, the ends of said light wave guides which are operatively connected to said diode being disposed in close side-by-side relation to one another and in close proximity to the light emitting surface of said diode.