Lensless microscopic imaging method based on optical projection and device thereof

A lensless microscope and optical projection technology, which is applied in optics, microscopes, optical components, etc., can solve problems such as color distortion and geometric distortion, and achieve the effects of improving the level, saving electric energy, and low cost

Inactive Publication Date: 2012-06-20
ZHEJIANG UNIV
View PDF3 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of geometric distortion and color distortion existing in the existing methods, the present invention proposes a lensless microscopic imaging method and its device based on optical projection

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
  • Lensless microscopic imaging method based on optical projection and device thereof
  • Lensless microscopic imaging method based on optical projection and device thereof
  • Lensless microscopic imaging method based on optical projection and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The basic principle of the lensless microscopic imaging method based on optical projection provided by the present invention is as follows: figure 1 and figure 2 As shown, according to different light sources, it can be divided into two types based on central projection and based on parallel projection.

[0024] Lens-free microscopic imaging method based on central projection: make the imaging object called slice or biological slide, or place the imaging object in a transparent petri dish; place the slide or petri dish 2 on the cone beam light source 3 and the image sensor 1; the cone beam light source 3 is used to irradiate the imaging object 4, and the object is projected onto the image sensor to form a central projection image 5; the image sensor 1 is sensitive to the central projection image 5, and the image data generated by it is transmitted to the host computer.

[0025] Lens-free microscopic imaging method based on parallel projection: the imaging object is m...

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

The invention provides a lensless microscopic imaging method based on optical projection and a device thereof. The lensless microscopic imaging method comprises the following steps: directly sensitizing and imaging an optically projected image of the object by using a CMOS (Complementary Metal-Oxide-Semiconductor Transistor) or CCD (Charge Coupled Device) image sensor; placing a glass slide between an image sensor and a light source; irradiating the glass slide by a special light source with variable color temperature and variable light intensity to project an object on the glass slide onto the image sensor; controlling the image sensor to conduct exposure imaging for the projected image of the object; and transmitting a digital image produced by the image sensor to an upper computer or other system through a USB interface or 1394 interface. Without the need of optical lens group of the conventional microscope, the device provided by the invention can use the image sensor for digital imaging from the projected image of the object, and can be used for observing micro objects, such as cell, particle and parasites, and has the advantages of small size, compact structure, low cost and direct digitalization, and is convenient in observation, and the like.

Description

technical field [0001] The invention relates to the field of optical projection imaging, in particular to a lensless microscopic imaging method and device based on optical projection. Background technique [0002] Projection imaging is a traditional imaging method. Traditional slides, current projectors, traditional X-ray machines, and direct digital X-ray imaging systems all use projection as a basic method. The difference lies in the different imaging carriers. . [0003] Direct digital X-ray imaging uses the penetrating ability of X-rays and converts X-rays into electrical signals through the photoconductivity of flat-panel detectors to form digital images. The principle of projection imaging based on visible light is similar to it, and the projection of objects can be generated by using the penetrating ability of visible light to transparent or translucent media. With the advancement of microelectronics technology, especially the development of CMOS or CCD image sensor...

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): G02B21/36G02B21/06G02B21/34
Inventor 居冰峰孙安玉姜燕
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap