Fuji Jukogyo Kabushiki Kaisha

Mikio Ono

Atsushi Namba

Toshiya Arakawa

Hisaya Takahashi

Provided herein is a light-emitting apparatus capable of achieving both improved durability and higher brightness with an inexpensive and simple construction. A heat resistant glass substrateis mounted in a vacuum chamber, and while an anode electrode(and a light emitter) is mounted on the glass substrate, the glass substrateis separated from a glass substrate. This precisely protects the vacuum chamberfrom thermal damage due to light emission upon excitation, even when the current density between the cathode electrodeand the anode electrodeis controlled at a high level to cause the light emitterto emit light at high brightness. Accordingly, this eliminates the need to make the entire vacuum chamberexcessively heat-resistant, permitting construction from an inexpensive material such as soda-lime glass; consequently both improvements in the durability of the light-emitting apparatusand enhancement in brightness thereof can be accomplished with an inexpensive and easy construction.

Light-emitting apparatus having a heat-resistant glass substrate separated through a vacuum layer from a glass substrate used as the light projection plane

Provided herein is a light-emitting apparatus which is capable of causing the light emitted at the entire face of a fluorescent material to be exteriorly emitted with no interference and with enhanced light emission efficiency, thereby attaining an exteriorly radiated high brightness light. A cathode electrodeis mounted on a periphery of a transmission member, the anode electrodeis also mounted on a domain opposite to a light transmission member, and the surfaceof the fluorescent materialto be mounted on a top layer of the anode electrodeis formed with a concave face. In accordance therewith, even when the cathode electrodeis offset mounted on a periphery of the light transmission memberit can be caused to precisely face the surfaceof the fluorescent materialand the excitation light from the entire face of the surfaceof the fluorescent materialcan made incident onto the light transmission memberwithout interference from the cathode electrodeor the like.

Light-emitting apparatus

It calculates a capacity difference ESOC between a reference remaining capacity SOCV based on an open-circuit voltage and a final remaining capacity SOC in a previous one calculation cycle. It calculates a proportional correction amount and an integral correction amount according to a proportional-integral control by using this capacity difference ESOC, and requires a final remaining capacity SOC by adding a remaining capacity SOCI based on a current integration to these correction amounts. Thus, while making good use of the remaining capacity based on the battery open-circuit voltage, it can avoid the influence of the load fluctuation and require a remaining capacity always stable and accurate.

Remaining capacity calculating device and method for electric power storage

The remaining capacity of a battery obtained by integrating current and that obtained from the estimated open circuit voltage of the battery are weighted with a weight which varies depending on the operating conditions of the battery as needed and the weighted remaining capacities are combined into the final remaining capacity. Thus, the disadvantages of the remaining capacity based on current integration and those of the remaining capacity based on the estimated open circuit voltage cancel each other out and the advantages of the respective remaining capacities can be fully utilized. The uniform calculation accuracy can be ensured and the final remaining capacity can always be obtained with accuracy.

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Tokyo, Japan

Mikio Ono