4. Coherent light generators
  5. Particular resonant cavity
  6. Specified cavity component

John P. Dugan

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Adjustable focus technique and apparatus using a moveable weak l

Coherent light generators – Particular resonant cavity – Specified cavity component
Patent

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Focus compensating lens for use in extreme temperatures

Optical: systems and elements – Having significant infrared or ultraviolet property – Lens – lens system or component
Patent

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Projection of two orthogonal reference light planes

Optics: measuring and testing – Angle measuring or angular axial alignment
Patent

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Technique and apparatus using a moveable weak lens

Coherent light generators – Particular resonant cavity – Specified cavity component
Patent

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Profile ID: LFUS-PAI-P-157255

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