Portable measuring instrument with solar batteries
Patent 5102471 Issued on April 7, 1992. Estimated Expiration Date: 
February 28, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 28, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSpectrometer with selectable area detector Patent #: 4542295 InventorAssigneeApplicationNo. 662551 filed on 02/28/1991US Classes:136/244, Panel or array33/819, Digital33/820, Electrical136/251, Encapsulated or with housing136/291, APPLICATIONSD10/73Micrometer, caliper or divider typeExaminersPrimary: Weisstuch, AaronAttorney, Agent or FirmForeign Patent References
International ClassH01L 031/042Foreign Application Priority Data1990-03-02 JPAbstractIn a portable measuring instrument using as a power source a group of solar batteries in which a plurality of solar batteries are series-connected on the same plane, respective light receiving windows are made to be substantially equal in area to one another, and each of the light receiving windows surrounds the outer periphery of other light receiving windows adjacent thereto, whereby, even if part of the light which irradiates the light receiving windows of the solar batteries is screened by a hand or other holding means for operating and holding the portable measuring instrument, it is avoided that only a specific light receiving window is screened, so that a current of the group of solar batteries can be efficiently produced. | |
