PHOTOELECTRIC CONVERSION ELEMENT AND IMAGING SYSTEM

• Main Authors: TAKAMI KOKI, ONUKI YUSUKE, KAWABATA KAZUNARI
• Format: Patent
• Language: English; Japanese
• Published: 05.07.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To solve the problem in which: reduction in light leaking from a light guide part to the outside of the light guide part is not sufficiently examined.SOLUTION: In a photoelectric conversion element including a light guide part, a first plane, a second plane, and a third plane each include a first portion of the light guide part, and a second portion of the light guide part that is surrounded by the first portion and has a lower refractive index than that of the first portion; on the first plane, the length of the width of the second portion is a first length; on the second plane, the length of the width of the second portion is a second length; on the third plane, the length of the width of the second portion is a third length; the second length is shorter than both the first length and third length.SELECTED DRAWING: Figure 4 【課題】 導光部から導光部の外部に漏れ出す光を低減する検討が十分ではなかった。【解決手段】 第１平面と、第２平面と、第３平面のそれぞれにおいて、導光部の第１部分と、第１部分に囲まれ、第１部分よりも屈折率の低い、導光部の第２部分とが含まれ、第１平面において、第２部分の幅の長さは第１の長さであり、第２平面において、第２部分の幅の長さは第２の長さであり、第３平面において、第２部分の幅の長さは第３の長さであり、第２の長さが、第１の長さと、第３の長さのそれぞれよりも短い導光部を備える光電変換素子である。【選択図】 図４