Abstract: To control an excess bias to an appropriate value in a light detection device. A solid-state image sensor includes a photodiode, a resistor, and a control circuit. In this solid-state image sensor, the photodiode photoelectrically converts incident light and outputs a photocurrent. Furthermore, in the solid-state image sensor, the resistor is connected to a cathode of the photodiode. Furthermore, in the solid-state image sensor, the control circuit supplies a lower potential to an anode of the photodiode as a potential of the cathode of when the photocurrent flows through the resistor is higher.

Abstract: A fine ratio measuring device that measures the fine ratio of fines adhering to the surface of the material in the form of lumps includes: an illumination unit that illuminates the material in the form of lumps; an imaging unit that captures an image of the material in the form of lumps and produces image data; and an arithmetic unit including a computation unit that computes a characteristic quantity of the image data produced by the imaging unit and a conversion unit that converts the characteristic quantity computed by the computation unit to the fine ratio.

Abstract: Provided are a raw material particle size distribution measuring apparatus and a particle size distribution measuring method. Also provided is a porosity measuring apparatus. The raw material particle size distribution measuring apparatus includes: a coarse particle measuring device that acquires information indicating the particle size distribution of the coarse particles; a fine particle measuring device that acquires information indicating the particle size distribution of the fine particles; and an arithmetic device that computes the particle size distribution of the coarse particles using the information indicating the particle size distribution of the coarse particles, computes the particle size distribution of the fine particles using the information indicating the particle size distribution of the fine particles, and computes an overall particle size distribution of the raw material using the particle size distribution of the coarse particles and the particle size distribution of the fine particles.

Abstract: Provided are a raw material particle size distribution measuring apparatus and a particle size distribution measuring method. Also provided is a porosity measuring apparatus. The raw material particle size distribution measuring apparatus includes: a coarse particle measuring device that acquires information indicating the particle size distribution of the coarse particles; a fine particle measuring device that acquires information indicating the particle size distribution of the fine particles; and an arithmetic device that computes the particle size distribution of the coarse particles using the information indicating the particle size distribution of the coarse particles, computes the particle size distribution of the fine particles using the information indicating the particle size distribution of the fine particles, and computes an overall particle size distribution of the raw material using the particle size distribution of the coarse particles and the particle size distribution of the fine particles.

Abstract: A fine ratio measuring device that measures the fine ratio of fines adhering to the surface of the material in the form of lumps includes: an illumination unit that illuminates the material in the form of lumps; an imaging unit that captures an image of the material in the form of lumps and produces image data; and an arithmetic unit including a computation unit that computes a characteristic quantity of the image data produced by the imaging unit and a conversion unit that converts the characteristic quantity computed by the computation unit to the fine ratio.

Abstract: A color display device includes: a first substrate and a second substrate opposing each other via a display medium layer interposed therebetween; a plurality of pixel electrodes arranged in a matrix pattern on one side of the first substrate; a common electrode formed on one side of the second substrate so as to oppose the plurality of pixel electrodes; and a plurality of color filter layers each having a different color formed between the second substrate and the common electrode. The common electrode and the color filter layers of different colors have a display area superposed on the plurality of pixel electrodes and a frame area outside a periphery of the display area. At least one of the plurality of color filter layers of different colors is continuous across a boundary between the display area and the frame area and is flat.

Abstract: A color display device includes: a first substrate and a second substrate opposing each other via a display medium layer interposed therebetween; a plurality of pixel electrodes arranged in a matrix pattern on one side of the first substrate; a common electrode formed on one side of the second substrate so as to oppose the plurality of pixel electrodes; and a plurality of color filter layers each having a different color formed between the second substrate and the common electrode. The common electrode and the color filter layers of different colors have a display area superposed on the plurality of pixel electrodes and a frame area outside a periphery of the display area. At least one of the plurality of color filter layers of different colors is continuous across a boundary between the display area and the frame area and is flat.