Image transistor with laminar flow water cooling system
AssigneeHewlett-Packard Development Company, L.P.
InventorsDavid A. Braun, Robert L. Myers
Life of this patent
Estimating the term…
Abstract
A light transistor system, including an image transistor, and a coolant passageway extending through the image transistor. The image transistor has a liquid crystal modulator, configured to amplify a low-power light signal using amplification energy from a higher-power light source, such as a laser or arc lamp. The coolant passageway is configured to receive a flow of coolant therethrough, to allow cooling of the image transistor to prevent damage to it from the higher-power light source.
Claims20
A light transistor system, comprising:
- a) an image transistor, having a liquid crystal modulator, configured to amplify a light signal using amplification energy from a light source;
- and
- b) a coolant passageway, extending through the image transistor, configured to receive a flow of coolant therethrough, to allow cooling of the image transistor.
A light transistor system, comprising:
- a) an image transistor, having a front side, a back side, a liquid crystal modulator, and a photoconductor, and configured to amplify a light signal using amplification energy from a light source;
- b) a high-power light source, aimed at the front side of the image transistor, so as to impinge upon the liquid crystal modulator;
- c) a low-power image source, aimed at the back side of the image transistor, so as to impinge upon the photoconductor;
- d) a coolant passageway, extending through the image transistor, and having coolant therein;
- and
- e) a radiator, in fluid communication with the coolant passageway, configured to remove thermal energy from the coolant, so as to cool the image transistor.
A light transistor, comprising:
- a) a liquid crystal modulator;
- b) a photoconductor, disposed rearwardly of the modulator;
- c) a reflective surface, disposed between the modulator and the photoconductor;
- d) electrodes, disposed near the modulator, configured to create an electrical field therearound, such that the characteristics of a low-power light image projected onto the photoconductor are transferred to a higher-power light beam projected onto the modulator and reflected off of the reflective surface;
- and
- e) a coolant passageway, configured to pass a laminar flow of coolant near the modulator.
Dependencies are inferred from the claim text.