Alfred Wegener Institute for Polar and Marine Research (AWI) Botryllus LED Beamer

1:Sites
2:Organization Chart
3:Mission Statement
4:Management
5:Divisions
6:Scientific Advice
7:Staff
8:Awards
9:General Services
- 9.1:Research Support
- 9.2:Logistics
- 9.3:Technology Transfer
  - 9.3.1:Technology Offers & AWI Innovations
    - 9.3.1.1:Scientific Instrumentation
    - 9.3.1.2:Marine Technology
      - 9.3.1.2.1:Botryllus LED Beamer
      - 9.3.1.2.2:Bottom Water Sampler - BoWaSnapper
      - 9.3.1.2.3:Water Sampler for ROVs and AUVs
      - 9.3.1.2.4:Specific know-how for polar constructions
      - 9.3.1.2.5:Sediment corer
      - 9.3.1.2.6:Adjustable stairway
      - 9.3.1.2.7:Bioremediation method for cleanup of oil contaminations in sea ice
      - 9.3.1.2.8:Viscoelastic antifouling
      - 9.3.1.2.9:Electrochemical antifouling
      - 9.3.1.2.10:Hand tool for underwater connections
      - 9.3.1.2.11:Dropping tool for ROVs
      - 9.3.1.2.12:Static high pressure cylinder (in German only)
      - 9.3.1.2.13:Safety switch for ground dropping tools
      - 9.3.1.2.14:Propulsion for an underwater machine
    - 9.3.1.3:Biotechnology
    - 9.3.1.4:Bionic Lightweight Structures
    - 9.3.1.5:Mariculture in Offshore Windparks
    - 9.3.1.6:IT solutions
  - 9.3.2:Spin offs
  - 9.3.3:About us
  - 9.3.4:Patent listings
- 9.4:Shipping of Biota
- 9.5:Communications and Media Relations
- 9.6:Purchasing department
10:Courses and Visiting Scientists
11:Work at the AWI
12:Friends of the AWI

Botryllus Beamer - a novel LED reflector

This reflector generates a strong parallel focused beam of light while bundling the ray of several LEDs with elliptically formed concave mirrors. The beams of LEDs or other non-directed light sources are assembled to one light beam of strong luminous intensity without the need of any lens systems.
The elliptic concave mirrors focus the light onto a main reflector and one aperture in the center of the beamer. The principle is outlined in Figure 1.
The construction overcomes the typical wide angle beam characteristic of light emitting diods and makes them useful as light sources for spot applications and long distance projections. Fully encapsulated constructions for more sophisticated applications (e.g. under water lighting) are possible.

Application fields

Automotive and industry reflectors
Fiber coupling of light sources
Long distance lighting of areas and spots
Ship technology
Diving and other under water technologies (ROV, AUV, hand lamps)
Scientific applications
Theater illuminations and so on.

The combination of white and colored LEDs (including UV and IR emitting LEDs) within one lamp as well as the optional use of additional lenses offers a multitude of other specific applications.

IP Situation

European patent EP 2102546B1 granted for DE, FR, GB, IT and CZ; US Patent application 2010/0020538 disclosed. Japan: 2009-527690 applied. We look for licensees, manufacturers and distributors of lighting and illuminants, also for more sophisticated applications.

State of development

A prototype using the Botryllus beamer principle for the use in a scientific instrument has been developed with industry partners and is ready for use. The overall technology is ready for a wide range of applications.