Light source module
AssigneeHewlett-Packard Development Company, L.P.
InventorsWinthrop D. Childers, William R. Wagner, John M. Koegler, P. Guy Howard, Timothy F. Myers
Life of this patent
Estimating the term…
Abstract
A light source module includes a lamp assembly having an integrated reflector and heat sink, the lamp assembly having a pressurized gas contained therein, an anode sealingly coupled to the integrated reflector and heat sink, and a cathode sealingly coupled to the integrated reflector and heat sink; and a projector protection system including at least one first projection feature for suspending current flow from the cathode to the anode when at least one first threshold is exceeded and at least one second projector protection feature for stopping the current flow when at least one second threshold is exceeded.
Claims29
A light source module, comprising:
- a lamp assembly having a reflector, said lamp assembly having a pressurized gas contained therein, an anode coupled to said reflector, and a cathode coupled to said reflector;
- and
- a projector protection system including at least one first protection feature for suspending current flow from said cathode to said anode when at least one first threshold is exceeded and at least one second protection feature for reducing a pressure of said pressurized gas when at least one second threshold is exceeded.
A display system, comprising:
- a light source module that includes a lamp assembly including an integrated reflector and heat sink, said lamp assembly having a pressurized gas contained therein, an anode coupled to said integrated reflector and heat sink, and a cathode coupled to said integrated reflector and heat sink, and a pressure relief system including at least one first pressure projector protection feature for suspending current flow from said cathode to said anode when at least one first threshold is exceeded and at least one second pressure projector protection feature for stopping said current flow when at least one second Threshold is exceeded, said second threshold being higher than said first threshold;
- an illumination optics assembly optically coupled to said light source module;
- and
- a spatial light modulator optically coupled to said illumination optics assembly.
A display system comprising:
- a light source niodide having a integrated reflector and heat sink;
- and
- a first projector protection feature configured to suspend operation of said light source module when a first threshold is exceeded;
- a second projector projection feature configured to stop operation of the light source module when a second tbresholcl is exceeded;
- and
- a spatial light modulator in optical communication with said light source module.
A method of forming a light source module, comprising:
- selecting first and second thresholds;
- forming a lamp assembly having a reflector, a cathode assembly, and an anode, said lamp assembly being configured to generate light in response to a flow of current between said anode and said cathode;
- providing a pressurized gas in said lamp assembly;
- suspending said flow of current when said first threshold is exceede;
- and
- relieving a pressure of said pressurized gas when said second threshold is exceeded.
A light source module, comprising:
- means for generating light;
- means for suspending said means for generating light when a first threshold is exceeded;
- and
- means for permanently disabling said means for generating light when a second threshold is exceeded.
A lamp assembly, comprising:
- a reflector having a pressurized gas contained therein,
- an anode coupled to said reflector,
- a face cap sealing coupJed to said reflector;
- said face cap having a cathode coupled thereto such that a gap is formed between said anode and said cathode;
- and
- at least one compliant section on said face cap, said compliant section being configured to be elastically deformed when said gas is above a first threshold to increase a size of said gap to suspend a flow of current between said anode and cathode and to be yieldably deformed when said gas is above a second threshold to increase said size of said gap to stop current flow between said anode and cathode.
Dependencies are inferred from the claim text.