Optical radiation source or detector device having plural radiating or receiving characteristics

• US 4,638,343 A
• Filed: 04/15/1985
• Issued: 01/20/1987
• Est. Priority Date: 01/04/1985
• Status: Expired due to Fees

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Klann, Jorg, Kuny, Wilhelm, Althaus, Hans-Ludwig
• Primary Examiner(s): Davie, James W.
• Assistant Examiner(s): Epps, Georgia Y.
• Application Number:
  US06/723,236
• Time in Patent Office: 645 Days
• Field of Search: 357/72, 357/73, 357/17, 357/30, 357/74, 313/498, 313/499
• US Class Current: 257/98
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/48465 the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/1815 Shape
• CPC Class Codes: H01L 31/02325 the optical elements not being integrated nor being directly associated with the device
• CPC Class Codes: H01L 33/54 having a particular shape
• CPC Class Codes: H01L 33/60 Reflective elements

Abstract

An optical sender or detector device with an envelope (U) whose light entrance and/or light exit surfaces are adapted to provide a desired radiating or receiving characteristic that is to be able to radiate directionally in two or more spatial directions or respectively to receive directionally from two or more spatial directions. The light entrance and/or light exit surfaces having reflecting curves (R 1, R 2) and lenticular curves (L 1, L 2).

Claims

1. An optical device including an envelope (U) having light refractive surfaces which provide a desired optical characteristic, the envelope of the optical device comprising at least two light refractive surfaces having lenticular curves (L 1, L 2) each with a far focus inside the envelope that are coincident in location, the optical device being disposed at the location and the two refractive surfaces defining two light propogation paths from them to the optical device.

2. An optical device according to claim 1, wherein each of the two light propogation paths have a reflecting curve (either R 1 or R 2) for stronger focusing.

3. An optical device according to claim 1, including a Lambert radiator chip serving as a radiation source of light.

4. An optical device according to claim 1, wherein the optical device is an optical sending device being in the form of a bidirectionally radiating chip serving as the radiation source of light.

5. An optical device according to claim 1, including a photo diode chip to receive light.

6. An optical device according to any one of claims 1-5, characterized in that the envelope (U) is sealed and has a uniform refractive index of n whose value is greater than one.

7. An optical device according to any one of claims 1-5, characterized in that the envelope (U) is an enclosed cavity.

8. An optical device according to claim 1, wherein the optical device is an optical detecting device being in the form of a bidirectionally receiving chip serving as the detector of light.