Display device for telescope system

Details Display device for telescope system Display device for telescope system

2007-03-20

2009-10-06

Fineman, Lee (Department: 2872)

Optical: systems and elements

Compound lens system

Telescope

C359S419000, C359S618000

Reexamination Certificate

active

07599116

ABSTRACT:
A display device (4) for a telescope system is disposed between a first image plane (10) and a second image plane (20) of the telescope system. The display device includes a signal emitter (41), a converging lens group (42) positioned adjacent to the signal emitter, and a dioptric imaging lens group (43) positioned adjacent to the converging lens group. The optical signal emitted by the signal emitter is first transmitted through the converging lens group, then incident onto the dioptric imaging lens group, and finally imaged onto the second image after reflection of the dioptric imaging lens group. Therefore, both the image size and brightness of the displayed signal viewed by the observer can maintain unchanged in spite of the magnification variation of the telescope system.

REFERENCES:
patent: 5771623 (1998-06-01), Pernstich
patent: 2005/0219690 (2005-10-01), Lin et al.
patent: 2007/0097499 (2007-05-01), Liao
patent: 2519298 (2002-10-01), None
patent: 84876 (1987-02-01), None
patent: 595851 (2004-06-01), None

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