1. A method providing substantially water-free compressed, extra dry exhaust gas for industrial purposes, comprising:
(1) extracting exhaust gas from a hydrocarbon fuel consuming engine;
(2) passing said exhaust gas through a catalytic converter;
(3) passing exhaust gas from said catalytic converter through a first compression step and cooling step in which the exhaust gas is chilled below the dew point temperature thereof to cause entrained water therein to condense out;
(4) separating out and disposing of condensed water from step (3) to provide extra dry exhaust gas; and
(5) compressing in a second compression step said extra dry exhaust gas to provide compressed extra dry exhaust gas for industrial purposes.
2. A method according to claim 1 including the step of passing said compressed extra dry exhaust gas for injection into a well.
3. A system for providing extra dry, substantially water-free compressed exhaust gas comprising:
a hydrocarbon fuel consuming engine that produces exhaust gas;
a catalytic converter connected to receive exhaust gas from said engine and having a gas outlet; and
a first compressor followed by a cooler by which gas from said catalytic converter is chilled to below the dew point temperature thereof to cause water entrained therein to condense out to extract substantially all water therefrom, the extracted water being disposed of to provide substantially water-free exhaust gas that is compressed in a second compressor, the compressed extra dry exhaust gas being usable for industrial purposes.
4. A system according to claim 3 including:
an output conduit for conducting said compressed substantially water-free exhaust gas for injection into a well.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for the objective measurement of ocular accommodation, comprising the following steps:
projecting a spot-light beam on the retina of an eye of a patient;
providing an ocular accommodation stimulation to generate an accommodative response;
capturing and recording a series of images resulting from the light reflected in the retina of said spot-light beam in correspondence with the response to said stimulus, with a different focus position of the retina; and
selecting, by processing, an image with the best optical quality from among said series of images, the focus value corresponding to said selected image providing the measurement of ocular accommodation.
2. The method according to claim 1, wherein said processing is carried out by means of an electronic processing system associated with an image capturing system.
3. The method according to claim 1, wherein said stimulation is carried out on the ciliary muscles of both eyes of said patient.
4. The method according to claim 1, wherein said capture is performed on a single eye of the patient and said stimulation is carried out on the ciliary muscles of said single eye.
5. The method according to claim 1, wherein said stimulation is carried out by means of a negative lens method.
6. The method according to claim 1, wherein said stimulation is carried out by means of a push-up method.
7. The method according to claim 1, wherein the mentioned steps, except for the step of stimulating, are carried out by means of using a double-pass ophthalmoscopic system.
8. The method according to claim 7, wherein said stimulation is carried out by means of a periscopic system including a beam splitter aligned with respect to said spot-light beam and a mirror associated with an object in an open field.
9. A system for the objective measurement of ocular accommodation comprising:
a double-pass ophthalmoscopic system for projecting a spot-light beam on a retina of an eye of a patient and capturing and processing an image resulting from the light which has been reflected in the retina of said spot-light beam
a periscopic system including a beam splitter aligned with respect to said spot-light beam and a mirror associated with an object in an open field;
means providing an accommodation stimulation such that the ciliary muscle of said eye is stimulated through said periscopic system to generate at least one accommodation response;
a Badal device, comprising two lenses and means for varying the distance therebetween to allow obtaining a series of images with different focus values on the retina; and
means for recording and processing said images to select the one with the best optical quality from among them.
10. The system according to claim 9, wherein said means for stimulation comprise a system for moving said object closer to and away from said mirror of said periscopic system.
11. The system according to claim 9, wherein said means for stimulation comprise a set of exchangeable lenses of different diopters interposed between the eye of the patient and the object in an open field.