Beam director

{
  "publication_number": "US3622232A",
  "country": "US",
  "kind": "A",
  "title": "Beam director",
  "abstract": "A beam director has a base with a mirror arranged to reflect the beam upward, and a guide above the base carries a vertically adjustable support arm. A rooftop reflector is arranged on the support arm above the base mirror so that the beam reflected from the base mirror is incident on the rooftop reflector. The horizontal position of the rooftop reflector along a line perpendicular to the ridge line of the reflector is adjustable to translate the beam horizontally without changing its direction angle. Preferably, the rooftop reflector is also rotatable about horizontal and vertical axes for changing the beam direction angle.",
  "claims": [
    "1. A beam director comprising: (a) a base; (b) means arranged on said base for reflecting a beam upward; (c) guide means arranged above said base; (d) a support arm arranged on said guide means; (e) means for vertically adjusting the position of said support arm on said guide means; (f) a rooftop reflector arranged on said support arm above said base reflector so that said upwardly reflected beam is incident on said rooftop reflector; and (g) means for horizontally adjusting the position of said rooftop reflector along a line perpendicular to the ridge line of said rooftop reflector to translate said beam horizontally without changing its direction angle.",
    "2. The beam director of claim 1 including means for rotating said rooftop reflector on a vertical axis to change the horizontal direction angle of said beam.",
    "3. The beam director of claim 1 including means for rotating said rooftop reflector on a horizontal axis to change the vertical direction angle of said beam.",
    "4. The beam director of claim 1 wherein said rooftop reflector comprises a pair of mirrors set perpendicular to each other.",
    "5. The beam director of claim 1 wherein said rooftop reflector comprises a prism having surfaces perpendicular to each other.",
    "6. The beam director of claim 1 wherein said horizontal adjusting means comprises a bracket carrying said rooftop reflector and means for moving said rooftop reflector horizontally relative to said bracket.",
    "7. The beam director of claim 6 including a screw arranged to adjust the horizontal position of said rooftop reflector relative to said bracket.",
    "8. The beam director of claim 6 including a vertical rotatable shaft carrying said bracket, and said rooftop reflector being generally eccentric relative to said shaft.",
    "9. The beam director of claim 8 including a screw arranged to adjust the horizontal position of said rooftop reflector relative to said bracket.",
    "10. The beam director of claim 8 including a horizontal rotatable shaft mounted on said bracket to carry said rooftop reflector for rotation about a horizontal axis.",
    "11. The beam director of claim 10 including a screw arranged to adjust the horizontal position of said rooftop reflector relative to said bracket."
  ],
  "cpc": [
    "G02B 17/02"
  ],
  "assignees": [
    "TROPEL"
  ],
  "filing_date": "1970-07-06",
  "publication_date": "1971-11-23",
  "grant_date": "1971-11-23",
  "priority_date": "1970-07-06",
  "application_number": "US-3622232D-A",
  "family_id": "21978510",
  "citations": [
    "US2849911A",
    "US3499713A",
    "US3564451A"
  ]
}