Hollow lensing duct

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873446

Beach, Raymond J ^[1]; Honea, Eric C ^[2]; Bibeau, Camille ^[3]; Mitchell, Scott ^[4]; Lang, John ^[5]; Maderas, Dennis ^[5]; Speth, Joel ^[6]; Payne, Stephen A ^[7]

---

1. Livermore, CA
2. Sunol, CA
3. Dublin, CA
4. Tracy, CA
5. Pleasanton, CA
6. San Ramon, CA
7. Castro Valley, CA

A hollow lensing duct to condense (intensify) light using a combination of focusing using a spherical or cylindrical lens followed by reflective waveguiding. The hollow duct tapers down from a wide input side to a narrow output side, with the input side consisting of a lens that may be coated with an antireflective coating for more efficient transmission into the duct. The inside surfaces of the hollow lens duct are appropriately coated to be reflective, preventing light from escaping by reflection as it travels along the duct (reflective waveguiding). The hollow duct has various applications for intensifying light, such as in the coupling of diode array pump light to solid state lasing materials.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 6160934
• OSTI ID: 873446
• Country of Publication: United States
• Language: English

Related Subjects

hollow
lensing
duct
condense
intensify
light
combination
focusing
spherical
cylindrical
lens
followed
reflective
waveguiding
tapers
wide
input
narrow
output
consisting
coated
antireflective
coating
efficient
transmission
inside
surfaces
appropriately
preventing
escaping
reflection
travels
various
applications
intensifying
coupling
diode
array
pump
solid
lasing
materials
antireflective coating
reflective coating
pump light
cylindrical lens
inside surface
diode array
various applications
reflective waveguiding
lens duct
lensing duct
narrow output
wide input
hollow lensing
duct tapers
/385/372/