Split-field pupil plane determination apparatus

Patent · Sun Dec 31 23:00:00 EST 1995

OSTI ID:870671

Salmon, Joseph T ^[1]

---

1. Livermore, CA

A split-field pupil plane determination apparatus (10) having a wedge assembly (16) with a first glass wedge (18) and a second glass wedge (20) positioned to divide a laser beam (12) into a first laser beam half (22) and a second laser beam half (24) which diverge away from the wedge assembly (16). A wire mask (26) is positioned immediately after the wedge assembly (16) in the path of the laser beam halves (22, 24) such that a shadow thereof is cast as a first shadow half (30) and a second shadow half (32) at the input to a relay telescope (14). The relay telescope (14) causes the laser beam halves (22, 24) to converge such that the first shadow half (30) of the wire mask (26) is aligned with the second shadow half (32) at any subsequent pupil plane (34).

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5570189
• Application Number: 08/453404
• OSTI ID: 870671
• Country of Publication: United States
• Language: English

Related Subjects

/356/
10
12
14
16
18
20
22
24
26
30
32
34
aligned
apparatus
assembly
beam
cast
causes
converge
determination
determination apparatus
diverge
divide
glass
glass wedge
half
halves
immediately
input
laser
laser beam
mask
path
plane
plane determination
positioned
positioned immediately
pupil
pupil plane
relay
shadow
split-field
split-field pupil
subsequent
telescope
wedge
wedge assembly
wire