Illumination and imaging of an object

Details Illumination and imaging of an object Illumination and imaging of an object

2005-08-09

2005-08-09

Mack, Ricky (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

C359S798000

Reexamination Certificate

active

06927916

ABSTRACT:
An optical system, for example in an optical pen, is arranged to illuminate an object plane and to transmit an image of the object plane to an image plane. The system has an optical component that reflects first radiation, which is emitted by a radiation source, towards the object plane while also transmitting second radiation from the object plane towards the image plane. The optical component comprises a reflective surface portion arranged to reflect the first radiation, and a spatially separate transparent surface portion arranged to transmit the second radiation.

REFERENCES:
patent: 5126872 (1992-06-01), Birkle
patent: 5719672 (1998-02-01), Chien
patent: 6084703 (2000-07-01), Dewald
patent: 6114712 (2000-09-01), Dvorkis et al.
patent: 4035077 (1992-05-01), None
patent: 2166831 (1986-05-01), None
patent: WO 00/72287 (2000-11-01), None
patent: WO 01/30589 (2001-05-01), None
patent: WO 01/71654 (2001-09-01), None

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