Light quantity measuring apparatus

Details Light quantity measuring apparatus Light quantity measuring apparatus

2008-11-04

2010-06-29

Nguyen, Sang (Department: 2886)

Optics: measuring and testing

Photometers

Photoelectric

C348S476000, C348S188000, C348S208600, C324S12100R

Reexamination Certificate

active

07746457

ABSTRACT:
The present invention provides a light quantity measuring apparatus capable of properly measuring, in short time, light to be measured whose quantity fluctuates periodically. Charges generated and stored in photodiodes during a measurement period are read in a plurality of times. A control unit obtains pixel data according to quantity of the charges generated and stored by the photodiodes in a plurality of storage periods obtained by dividing a measurement period. Further, the control unit adds up the plurality of pieces of pixel data, and calculates pixel data according to the quantities of charges generated and stored by the photodiodes in the measurement period.

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