Detection device

Abstract

To provide a detection device that can improve detection accuracy regardless of the type of culture medium. [Solution] The detection device comprises a sensor panel having a detection area in which a plurality of light sensors are arranged in a planar manner, a light source that irradiates a target object with uniform light, and a control circuit that controls the sensor panel and the light source. The control circuit performs an initial setting process to adjust the light emission amount setting value of the light source so that the sensor values ​​acquired from the sensor panel fall within a predetermined target setting range.

Claims

1. A sensor panel having a detection area in which multiple light sensors are arranged in a planar manner, A light source that illuminates the object to be detected with uniform light is provided between the sensor panel and the light source, The sensor panel and the control circuit for controlling the light source, Equipped with, The aforementioned control circuit is Initial setup processing is performed to adjust the light emission amount setting value of the light source so that the sensor value obtained from the sensor panel falls within a predetermined target setting range. Detection device.

2. The aforementioned target setting range is a range of 80% to 90% of the upper limit of the sensor value that can be detected. The detection device according to claim 1.

3. The aforementioned control circuit is In the initial setup process, the light emission amount setting value is adjusted so that the average value of the multiple sensor values ​​corresponding to the multiple light sensors falls within a predetermined target setting range. The detection device according to claim 1 or 2.

4. The aforementioned control circuit is In the initial setup process, the light emission amount setting value is adjusted so that the average value of multiple sensor values ​​corresponding to some of the light sensors included in the detection area falls within a predetermined target setting range. The detection device according to claim 1 or 2.

5. The sensor panel has a plurality of light sensors arranged in a matrix in the detection area along a first direction and a second direction intersecting the first direction. The aforementioned control circuit is In the initial setup process, the light emission amount setting value is adjusted so that the average value of multiple sensor values ​​corresponding to multiple light sensors located at predetermined intervals in the first and second directions, respectively, among the light sensors included in the detection area, falls within a predetermined target setting range. The detection device according to claim 1 or 2.

6. The sensor panel has a detection area that is divided into multiple sub-regions. The aforementioned control circuit is In the initial setup process, the light emission setting value is adjusted so that the average value of multiple sensor values ​​corresponding to multiple light sensors included in a portion of the multiple divided regions falls within a predetermined target setting range. The detection device according to claim 1 or 2.

7. The light source irradiates the object to be detected with multiple different colored lights in a time-division manner. The aforementioned control circuit is In the initial setup process, the light emission amount setting value is adjusted for each light emission color of the light source. The detection device according to claim 1 or 2.

8. The aforementioned initial setup process is, A first process involves increasing the light intensity of the light source in a first change step until the sensor value acquired from the sensor panel exceeds a predetermined sensor target value, In the first process, if the sensor value obtained from the sensor panel exceeds a predetermined sensor target value, a second process is performed to reduce the light intensity of the light source by the amount obtained by subtracting a second change step smaller than the first change step from the first change step. After the second process, a third process is performed in which the light intensity of the light source is increased in the second change step until the sensor value obtained from the sensor panel exceeds a predetermined sensor target value. In the third process, if the sensor value obtained from the sensor panel exceeds a predetermined sensor target value, a fourth process is performed to reduce the light intensity of the light source by half the value of the second change step, including, The detection device according to claim 1 or 2.

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