Optics: image projectors – Heliostats
Patent
1984-01-13
1986-04-29
Haroian, Harry N.
Optics: image projectors
Heliostats
126424, G03B 2100, F24J 302
Patent
active
045853185
ABSTRACT:
This invention concerns a tracking device which enables the positioning of an apparatus to trace a curved path. For example, they are suitable for solar devices such as photovoltaic generators, solar cookers and heliostates. Normally the tracking apparatus is mounted on a vertical axis, whereas according to the invention a necessary tilt to the horizontal axis is attained automatically through a directing limb by rotating the vertical axis, this making possible a trustworthy and uncomplicated manufacturable and manageable tracking device that can be easily adjusted to the local circumstances.
REFERENCES:
patent: 3656844 (1972-04-01), Botskor
patent: 4108019 (1978-08-01), Martin
patent: 4109640 (1978-08-01), Smith
patent: 4145021 (1979-03-01), Gaechter et al.
patent: 4172739 (1979-10-01), Tassen
patent: 4295621 (1981-10-01), Siryj
Patents Abstract of Japan, vol. 7, No. 37, Feb. 15, 1983.
Whitford and Kron, "Photoelectric Guiding of Astronomical Telescopes," R.S.I., vol. 8, Mar. 1937, pp. 78-82.
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