Infrared radiation detector

An infrared radiation detector having a cryogenic container with an infrared radiation detecting unit cooled at cryogenic temperature with a cooling device, comprising:

• a cryogenic container composed of an inner cylinder and an outer cylinder and having an inside thereof held at vacuum pressure;
• an infrared radiation detecting unit accommodated within the cryogenic container and disposed on a top end portion of the inner cylinder;
• a signal output section comprising an electrically insulative lead plate and output terminals located on the lead plate;
• and
• means for electrically coupling the infrared radiation detecting unit to the output terminals, wherein the length of an electrical path from the infrared radiation detecting unit to the output terminals is approximately the distance from the infrared radiation detecting unit to the output terminals.

An infrared radiation detector having a cryogenic container with an infrared radiation detecting unit cooled at cryogenic temperature with a cooling device, comprising:

• a cryogenic container composed of an inner cylinder and an outer cylinder and having an inside thereof held at vacuum pressure;
• an infrared radiation detecting unit;
• a sub-package mounted on a top end portion of the inner cylinder and having means for mounting the infrared radiation detecting unit to the sub-package along the peripheral edge of the infrared radiation detecting unit;
• a signal output section comprising an electrically insulative lead plate and output terminals located on the lead plate;
• and
• means for electrically coupling the infrared radiation detecting unit to the output terminals.

An infrared radiation detector having a cryogenic container with an infrared radiation detecting unit cooled at cryogenic temperature with a cooling device, comprising:

• a cryogenic container composed of an inner cylinder and an outer cylinder and having an inside thereof held at vacuum pressure;
• an infrared radiation detecting unit accommodated within the cryogenic container and disposed on a top end portion of the inner cylinder;
• and
• a signal output section disposed substantially in the same plane as that of the infrared radiation detecting unit, comprising
• an electrically insulative lead plate extending radially in a direction from inside the cryogenic container to outside the cryogenic container;
• a plurality of output terminals located outside the cryogenic container on the lead plate;
• a plurality of conductive bonds extending from the infrared radiation detecting unit to the lead plate;
• and
• a plurality of conductive leads extending radially within the lead plate, each of the conductive leads electrically coupled to one of the plurality of conductive bonds and to one of the plurality of output terminals.

An infrared radiation detector having a cryogenic container with an infrared radiation detecting unit cooled at cryogenic temperature with a cooling device, comprising:

• a cryogenic container composed of an inner cylinder and an outer cylinder and having an inside thereof held at vacuum pressure;
• an infrared radiation detecting unit;
• a sub-package mounted on a top end portion of the inner cylinder and having means for mounting the infrared radiation detecting unit to the sub-package along the peripheral edge of the infrared radiation detecting unit;
• a cold shield for blocking stray light of infrared radiation mounted on the top of the sub-package;
• a signal output section disposed substantially in the same plane as that of the sub-package comprising
• an electrically insulative lead plate extending radially from a position beyond the inner cylinder but within the outer cylinder to a position outside the cryogenic container;
• a plurality of output terminals located outside the cryogenic container on the lead plate;
• a plurality of conductive bonds extending from the infrared radiation detecting unit to the lead plate;
• and
• a plurality of conductive leads extending radially within the lead plate, each of the conductive leads electrically coupled to one of the plurality of conductive bonds and to one of the plurality of output terminals.