Measuring device for measuring optical properties of...

Details Measuring device for measuring optical properties of... Measuring device for measuring optical properties of...

2007-10-30

2011-12-06

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

Of light reflection

With diffusion

C356S432000, C356S236000, C250S228000

Reexamination Certificate

active

08072607

ABSTRACT:
A measuring device for measuring optical properties of transparent substrates includes a light transmitter and/or light receiver comprising a hollow cylinder having a highly reflective and diffusely dispersive inner surface. The light transmitter comprises a light source arranged in its interior and a light exit opening at a distance from the light source. The light receiver has a light sensor instead of the light source, at a distance from a light entrance opening. The light source and light sensor are arranged at such a distance from the light exit opening and light entrance opening respectively, given a corresponding direction of propagation of the light, that light emitted by the light source or received by the light sensor and multiply reflected in the hollow cylinder emerges as diffuse light from the light exit opening or is incident on the light sensor.

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The International Search Report for PCT/DE2007/001951, dated Feb. 26, 2008.

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