Endoscope and method for producing endoscope
US-2024315534-A1 · Sep 26, 2024 · US
Endoscope
US8994802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8994802-B2 |
| Application number | US-201414156913-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2014 |
| Priority date | Aug 30, 2012 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
Official abstract text for this publication.
An endoscope includes an objective optical system at a distal end of an inserted portion to acquire a subject image; a part that splits the subject image into two optical images focused differently; an imaging device that acquires two images by simultaneously capturing the optical images arranged on an imaging surface; and a part for cutting out at least abutting portions of the optical images on the imaging device, wherein A+B>C+D, where A is half the maximum length of light-receiving regions for the optical images at the imaging surface; where TW is an entry angle at the imaging surface when A is at the maximum image height and d is an optical-path-length difference between the optical images, B=d×tan TW; C is half the length of the light-receiving regions in a direction of the optical images arranged on the imaging surface; and D is a distance between the two light-receiving regions.
First claim
Opening claim text (preview).
The invention claimed is: 1. An endoscope comprising: an objective optical system that is provided at a distal end of an inserted portion and that acquires a subject image; an optical-path splitting part for splitting the subject image into two optical images that are focused differently; an imaging device that acquires two images by capturing the two optical images, which are focused differently, at the same time in a state in which the two optical images are arranged on an i…
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Human Necessities · mapped topic
Physics · mapped topic
Physics · mapped topic
Human Necessities · mapped topic
- G02B23/243Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8994802B2 cover?
- An endoscope includes an objective optical system at a distal end of an inserted portion to acquire a subject image; a part that splits the subject image into two optical images focused differently; an imaging device that acquires two images by simultaneously capturing the optical images arranged on an imaging surface; and a part for cutting out at least abutting portions of the optical images …
- Who is the assignee on this patent?
- Olympus Medical Systems Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B23/243. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).