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Parallel light ray measuring apparatus

Optics: measuring and testing – Lamp beam direction or pattern
Patent

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Phase determination of a radiation wave field

Optics: measuring and testing – Lamp beam direction or pattern
Reexamination Certificate

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Photoelectric determination of the cut-off of a light beam from

Optics: measuring and testing – Lamp beam direction or pattern
Patent

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Portable device for measuring the light intensity from an...

Optics: measuring and testing – Lamp beam direction or pattern
Reexamination Certificate

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Procedure and apparatus for determining the geometrical shape of

Optics: measuring and testing – Lamp beam direction or pattern – With lamp focusing
Patent

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Projection system visual characteristics analyzer

Optics: measuring and testing – Lamp beam direction or pattern
Patent

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Propagation measuring apparatus and a propagation measuring...

Optics: measuring and testing – Lamp beam direction or pattern
Reexamination Certificate

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Pupil imaging reticle for photo steppers

Optics: measuring and testing – Lamp beam direction or pattern
Patent

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