Image capturing apparatus

专利名称：Image capturing apparatus发明人：Takaaki Saito申请号：US1610申请日：20180711公开号：US11006026B2公开日：20210511

专利附图：

摘要：Provided is an image capturing apparatus that not only prevents excitation lightfrom leaking into RGB but also corrects a difference of focal points between visible lightand IR and corrects levels of visible light and IR without having a complicated structure.An image capturing apparatus includes a light irradiation unit that irradiates an object

including a fluorescent material with excitation light and illuminating light, a four-colorseparation unit that separates light incident upon a lens into R, G, B, and IR, an imagesensor that performs photoelectric conversion on each separated light, a picture signaloutput unit that generates a picture signal from an electrical signal obtained by thephotoelectric conversion, a picture display that displays a picture based on the picturesignal, a bandpass filter that does not transmit light near a wavelength band of theexcitation light, and a correction filter . The correction filter includes a circular visible lightcutting region that cuts visible light out of the incident light, a circular IR cutting regionthat cuts IR out of the incident light, and a dummy glass having a predeterminedthickness.

申请人：IKEGAMI TSUSHINKI CO., LTD.

地址：Tokyo JP

国籍：JP

代理机构：Nakanishi IP Associates, LLC

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