公开(公告)号：US20220057620A1

公开(公告)日：2022-02-24

申请号：US17518916

申请日：2021-11-04

Applicant: OLYMPUS CORPORATION

Inventor： Yasuo YONEMARU

IPC: G02B21/36 ,  G06T7/00 ,  G06T5/50 ,  G06T5/20

Abstract: An image processing method includes: generating two images by performing two image enhancement processes for a microscopic image; and generating a corrected image obtained by compositing the two images, wherein the generating the two images includes generating a high-frequency enhanced image in which high-frequency components of the microscopic image are enhanced relative to low-frequency components of the microscopic image that have a lower frequency than the high-frequency components, and generating a microstructure enhanced image in which a microstructure in an observation sample included in the microscopic image is enhanced.

公开(公告)号：US20190324251A1

公开(公告)日：2019-10-24

申请号：US16378996

申请日：2019-04-09

Applicant: OLYMPUS CORPORATION

Inventor： Yasuo YONEMARU ,  Kengo OSAWA

IPC: G02B21/02 ,  G02B9/06

Abstract: A dry microscope objective with a 20-fold magnification or lower that includes a first lens group having a positive refractive power and a second lens group having a positive refractive power, wherein the first and second lens groups have concave surfaces adjacent to each other and facing each other, and the microscope objective satisfies the following conditional expressions: 1.4≤(Wz(1)−Wz(0))/DOFd≤2.3  (1) 0≤WCRMS(Fiy)≤0.1λd (0≤Fiy≤0.7)  (2) where Wz indicates a function of a d-line optimization position that is an longitudinal position at which an RMS wavefront aberration in a d line at the object height ratio is minimized; DOFd indicates a depth of focus for the d line; WCRMS indicates a function of an RMS wavefront aberration in a C line that occurs at the d-line optimization position; Fiy indicates the object height ratio; and λd indicates the wavelength of the d line.

公开(公告)号：US20190324245A1

公开(公告)日：2019-10-24

申请号：US16283793

申请日：2019-02-24

Applicant: OLYMPUS CORPORATION

Inventor： Yasuo YONEMARU ,  Kenichiro ABE

IPC: G02B21/02 ,  G02B13/00

Abstract: A microscope objective includes: a first lens group that has a positive refractive power and includes a first cemented lens; and a second lens group, the first lens group and the second lens group having concave surfaces adjacent to and facing each other. The second lens group includes: at least one lens component that has a negative refractive power overall; a second cemented lens; and a single lens having a positive refractive power. An axial marginal light ray height is maximized at the lens surface of the microscope objective that is the closest to an image. The microscope objective satisfies the following conditional expression: −0.38≤Fs/FC2≤0.38  (1) where FC2 indicates the focal length of the second cemented lens for an e line, and Fs indicates the focal length of the single lens for the e line.