The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Sep. 04, 1997
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a light-emission controlling apparatus comprising a light-emission time integrating unit (107) for measuring the integral of the length of time that an electric discharge lamp (106) has emitted light, a comparing unit (1082) for comparing the integral of the length of time that the electric discharge lamp (106) has emitted light which is measured by the light-emission time integrating unit (107) to a reference value, a light-emission mode selecting unit (1083) for selecting either a first light-emission mode or a second light-emission mode according to a comparison result from the comparing unit (1082) so as to cause the electric discharge lamp (106) to emit light in one light-emission mode selected, and a display controlling unit (1084) for transmitting information about the comparison result from the comparing unit (1082) as the information about the light-emission state of said light-emitting means, by way of a local are network (109), to a display device (500 and 501) disposed outside the light-emission controlling apparatus, and for displaying the information on the display device.