公开(公告)号：US12078796B2

公开(公告)日：2024-09-03

申请号：US17315439

申请日：2021-05-10

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi Ito ,  Satoshi Tanaka ,  Koichiro Ito

IPC: G02B23/24 ,  A61B1/00 ,  A61B1/06 ,  G02B26/00

CPC classification number: G02B23/2469 ,  A61B1/00057 ,  A61B1/0655 ,  G02B23/2484 ,  G02B26/007

Abstract: An endoscope light source device includes a light source device and a light source controller. A first light and a second light are narrow band light in a blue region. A third light is in a green region. A fourth light is in a red region. A first light amount ratio is a ratio of a sum of the light amounts of the first light and the second light, the light amount of the third light, and the light amount of the fourth light. A second light amount ratio is a light amount ratio of the first light and the second light. The light source controller adjusts the light amount ratio of the first light and the second light to achieve the second light amount ratio so as to adjust the color representation from a yellow region to a red region in an image of an object.

公开(公告)号：US10952598B2

公开(公告)日：2021-03-23

申请号：US15983091

申请日：2018-05-18

Applicant: OLYMPUS CORPORATION

Inventor： Koichiro Ito

IPC: A61B1/06 ,  A61B1/04 ,  H04N5/235 ,  H04N9/04 ,  G02B23/24 ,  A61B1/00 ,  H04N9/07 ,  H04N5/225 ,  H04N9/73

Abstract: The resolution of narrow band imaging is improved, while color reproducibility is improved when performing white-light observation. Provided is an endoscope system including an image pickup device having three types of color filters, said types being blue, green, and magenta, and also including an image processor that generates an image by processing a signal acquired by the image pickup device. The image processor includes a ratio calculator that calculates the ratio between a blue signal and a magenta signal, and also includes a red-signal generator that generates a red signal based on the ratio calculated by the ratio calculator.