Renesas Electronics Corporation

Koji Shida

Shunsuke Okura

Hiroshi Kato

Shinya Tanaka

Katsumi Dosaka

Hirokazu Shimizu

Hideki Wakisaka

A method of determining a position of a focus lens includes the steps of detecting luminance values corresponding to a plurality of imaging elements which detect light via a focus lens while moving the focus lens, calculating a contrast value for evaluation of a focused state of a subject image on the basis of the detected luminance values corresponding to the imaging elements, specifying the largest luminance value in the detected luminance values corresponding to the imaging elements, specifying a range in which the largest luminance value is not less than a value which is determined in advance in a moving range of the focus lens and determining the position of the focus lens on the basis of the contrast value in the specified range of the position of the focus lens.

Method of determining focus lens position, control program for making computer execute the method, and imaging device

According to one aspect of the present invention, an image sensor and a sensor module have a configuration in which the image sensor outputs first brightness information representing brightness information of first image information obtained with a first exposure time and second brightness information representing brightness information of second image information obtained with a second exposure time separately from a composite image obtained by synthesizing the first image information and the second image information, updates the first and second exposure times based on an exposure time set value externally generated based on the first brightness information and the second brightness information, and changes a synthesis set value used for synthesis of the composite image based on the exposure time set value externally generated based on the first brightness information and the second brightness information.

Image sensor and sensor module

There is a need to provide a solid-state imaging apparatus capable of highly accurately analog-to-digital converting an analog voltage output from a pixel circuit. The solid-state imaging apparatus supplies a counter code to an integral A/D converter. The counter code CD includes 3-phase clock signals and gray signals. The clock signals each have a cycle equal to specified cycle multiplied by 8 and allow phases to shift from each other by specified cycle. The gray signals linearly increase count values at a cycle equal to specified cycle multiplied by 4. The counter code reverses only the logical level of a signal when a count value changes. A count value error can be limited to a minimum.

Solid-state imaging apparatus

There is provided a solid-state image sensing device that can prevent the occurrence of vertical line noise with a simple circuit. A timing adjustment circuit generates a first clock supplied to a ramp generator and a second clock supplied to a counter so that a phase difference between the first clock and the second clock is within a predetermined range and differs according to lines in an image sensor.

Growing community of inventors

Tokyo, Japan

Koji Shida