Functional shield for a telescope
OwnerCharles A. Thompsoninventor
Life of this patent
Estimating the term…
Abstract
A unitary, combined-purpose, functional shield--in the shape of a hollow, generally conically shaped apertured cap for a telescope lens is used with a telescope in a straight or inverted fashion to achieve protection from dew for a telescope in general and a lens thereof in particular, while at the same time assisting in the focusing of light.
Claims19
A unitary, combined-purpose, functional shield for a telescope, said telescope having a light receiving end, to assist with focusing of light in a telescope and protecting of said telescope from dew wherein:
- a. said shield has a closed end and an open end to form a cap for a lens of said telescope to achieve protection from dew for said telescope;
- b. said cap has at least two apertures between said open end and said closed end symmetrically spaced around said cap,
- c. said open end is of sufficient size to cover said telescope lens;
- and
- d. said shield protrudes from said light receiving end.
A unitary, combined-purpose, functional shield for a telescope, said telescope having a light receiving end and a lens arrangement suitable for viewing astronomical bodies, to assist with focusing of light in a telescope and protecting of said telescope from dew wherein:
- a. said shield has a shape of a hollow, generally conically shaped cap for a lens in said light receiving end of said telescope to achieve protection from dew for a telescope;
- b. said cap has a conical shape;
- c. said conical shape has a base and a vertex oppositely disposed from said base;
- d. said conical shape is hollow;
- e. said cap has a plurality of apertures between said base and said vertex symmetrically spaced around said conical shape;
- and
- f. said conical base is of sufficient size to cover said telescope lens.
An astronomical telescope having a light receiving end and a lens arrangement suitable for viewing astronomical bodies, the improvement comprising a unitary, combined-purpose, functional shield wherein:
- a. said unitary, combined-purpose, functional shield provides both a light mask and a dew protector to minimize formation of dew on a lens of said telescope;
- b. said functional shield has a conical shape;
- c. said conical shape has a base and a vertex oppositely disposed from said base;
- d. said conical shape is hollow;
- e. said functional shield has a plurality of apertures between said base and said vertex symmetrically spaced around said conical shape;
- and
- f. said conical base is of sufficient size to cover said lens at said light receiving end.
Dependencies are inferred from the claim text.