Optical: systems and elements – Compound lens system – Telescope
Reexamination Certificate
2007-11-27
2007-11-27
Amari, Alessandro (Department: 2872)
Optical: systems and elements
Compound lens system
Telescope
C359S900000
Reexamination Certificate
active
11285030
ABSTRACT:
A manual controller commands a telescope mount to automatically track a specific bright star after the image of the star is located to center of an electronic eyepiece and a timer is started. The average moving speed of the bright star is calculated after a predetermined elapsed time to acquire the right ascension (RA) and the declination (DEC) coordinates of this bright star. Subsequently, the RA and DEC coordinates are compared with pre-stored data contained within a database used to identify the bright star. The celestial sphere coordinates of the telescope can be determined after a minimum of one bright star is identified. In the auto-tracking procedure, the manual controller controls movement of telescope by feedbacks of the drifting speed and direction of the specific bright star in an electronic eyepiece for the purpose of keeping the specific bright star in the center of the electronic eyepiece.
REFERENCES:
patent: 5133050 (1992-07-01), George et al.
patent: 6922283 (2005-07-01), Baun et al.
Chen Chin-Chuan
Liu Yan
Amari Alessandro
Pacific Telescope Corp.
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