Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Slit lamp microscope and ophthalmic system

A technology of slit lamp microscope and photographing system, applied in the field of slit lamp microscope and ophthalmology system, can solve the problems of complicated lighting angles, inability to obtain good images, and long inspection time, etc.

Pending Publication Date: 2021-03-16
KK TOPCON
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in order to obtain a good image using a slit lamp, subtle and complicated operations such as adjusting the lighting angle and shooting angle are required
In the techniques disclosed in Patent Documents 3 and 4, it is necessary for an examiner living in a remote area to perform operations that are difficult even to observe the eyes of the examinee in front of him, so that the examination time becomes longer or good results cannot be obtained. image problem like this
[0007] In addition, although the slit lamp microscope is effective in screening and other inspections as mentioned above, there are not enough holders of the equipment with relevant expertise, and the current situation is that it is impossible to provide high-quality inspections to many people.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Slit lamp microscope and ophthalmic system
  • Slit lamp microscope and ophthalmic system
  • Slit lamp microscope and ophthalmic system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach 〉

[0113] figure 1 An example of the slit lamp microscope of the first embodiment is shown in .

[0114]The slit lamp microscope 1 is used for photographing the anterior segment of the subject's eye E, and includes an illumination system 2 , an imaging system 3 , a moving mechanism 6 , a control unit 7 , a data processing unit 8 , and a communication unit 9 . In addition, reference sign C denotes a cornea, and reference sign CL denotes a lens.

[0115] The slit lamp microscope 1 may be a single device or a system including two or more devices. As an example of the latter, the slit lamp microscope 1 includes: a main unit equipped with an illumination system 2, an imaging system 3, and a moving mechanism 6; a computer equipped with a control unit 7, a data processing unit 8, and a communication unit 9; communication between communication devices. The computer may be installed together with the main device, for example, or may be installed on a network.

[0116] [Lighting System...

no. 2 approach 〉

[0212] In this embodiment, the configuration of an optical system applicable to the slit lamp microscope 1 of the first embodiment will be described. An example of this is shown in Figure 5 . In addition, except Figure 5 In addition to the set of requirements shown in , the requirements shown in other embodiments may be provided. For example, the control unit 7, the data processing unit 8, the communication unit 9, etc. of the first embodiment may be provided.

[0213] Figure 5 The lighting system 20 shown in is an example of the lighting system 2 of the first embodiment, and the left imaging system 30L and the right imaging system 30R are examples of the imaging system 3 . Reference numeral 20A denotes an optical axis (illumination optical axis) of the illumination system 20, reference numeral 30LA denotes an optical axis (left photographing optical axis) of a left imaging system 30L, and reference numeral 30Ra denotes an optical axis (right imaging optical axis) of a ...

no. 3 approach 〉

[0245] In this embodiment, the configuration of a processing system applicable to the slit lamp microscope 1 of the first embodiment will be described. In addition, in the imaging system 3 of this embodiment, for example, as described in the second embodiment Figure 5 In this way, the left imaging optical axis 30La and the right imaging optical axis 30Ra are disposed obliquely in directions opposite to each other with respect to the illumination optical axis 20a. The processing system of this embodiment performs the following artifact processing.

[0246] Figure 7 The data processing unit 8A shown in is an example of the data processing unit 8 of the first embodiment. The data processing unit 8A includes an image selection unit 81 .

[0247] The image selection unit 81 determines whether or not any of the two images acquired substantially simultaneously by the left imaging system 30L and the right imaging system 30R includes artifacts. Artifact determination includes pre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A slit lamp microscope according to an exemplary embodiment comprises an illumination system, an imaging system, and a movement mechanism. The illumination system emits slit light to the anterior segment of an eye being examined. The imaging system comprises: an optical system that guides light from the anterior segment which is being irradiated with the slit light; and an imaging element that receives the light guided by the optical system on an imaging plane. The movement mechanism moves the illumination system and the imaging system. An object plane along the optical axis of the illumination system and the imaging plane of the optical system satisfy an anti-reflection condition. The imaging system repeatedly images the anterior eye segment to acquire a plurality of images thereof whilethe illumination system and imaging system are moved by the movement mechanism.

Description

technical field [0001] The present invention relates to slit lamp microscopes and ophthalmic systems. Background technique [0002] In the field of ophthalmology, image diagnosis plays an important role. In image diagnosis, various ophthalmic imaging devices are used. The ophthalmic imaging device includes a slit lamp microscope, a fundus camera, a scanning laser ophthalmoscope (SLO), an optical coherence tomography (OCT), and the like. In addition, various ophthalmic devices or measurement devices, such as refractometers, keratometers, tonometers, corneal endothelial microscopes, wavefront phase contrast instruments, and microperimeters, are equipped with the function of photographing the anterior eye or fundus. [0003] One of the most widely and frequently used of such various ophthalmic devices is the slit lamp microscope. The slit lamp microscope is an ophthalmic device for illuminating the subject's eye with slit light and observing or photographing the illuminated ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/135
CPCA61B3/135A61B3/12A61B3/024A61B3/14A61B3/0008
Inventor 大森和宏福间康文清水仁
Owner KK TOPCON
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com