Multifocal lens and processing device and method thereof

A multi-focal lens and processing equipment technology, which is applied to lenses, microscopes, optics, etc., can solve the problems of poor optical characteristics, complex polishing process, difficult optical alignment, etc., and achieves high processing efficiency, simple processing equipment, and processing methods. flexible effects

Active Publication Date: 2015-07-29
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these processing methods have the characteristics of difficult optical alignment, complicated polishing process, and poor optical characteristics.

Method used

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  • Multifocal lens and processing device and method thereof
  • Multifocal lens and processing device and method thereof
  • Multifocal lens and processing device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Reference figure 1 with figure 2 , Prepare a three-focus lens through a femtosecond laser modification and hydrofluoric acid etching process. It includes the following main steps:

[0042] Step 1. Cleaning of hard substrate materials: use acetone, ethanol, and deionized water to clean ultrasonically for 5 minutes respectively to effectively clean the hard substrate materials 260; the hard substrate 260 materials include fused silica, K9 glass, and silicon wafers. One of

[0043] Step 2: Femtosecond laser modification: reference figure 1 , The femtosecond laser pulse 280 generated by the femtosecond laser generator 210 passes through the parameter modulation optical path 220, half mirror or narrow-band high-reflection film 240, and then focuses on the surface of the hard substrate 260 through the optical focusing lens 250; the hard substrate 260 is fixed on the programmable control three-dimensional translation stage 270. Reference figure 2 , The femtosecond laser affecte...

Embodiment 2

[0047] Reference image 3 with figure 1 , The bifocal lens is prepared through multiple femtosecond laser modification and hydrofluoric acid etching processes. It includes the following main steps:

[0048] Step 1. Cleaning of hard substrate materials: use acetone, ethanol, and deionized water to clean ultrasonically for 5 minutes respectively to effectively clean the hard substrate materials 260; the hard substrate 260 materials include fused silica, K9 glass, and silicon wafers. One of

[0049] Step 2: The first modification of femtosecond laser: reference figure 1 , The femtosecond laser pulse 280 generated by the femtosecond laser generator 210 passes through the parameter modulation optical path 220, half mirror or narrow-band high-reflection film 240, and then focuses on the surface of the hard substrate 260 through the optical focusing lens 250; the hard substrate 260 is fixed on the programmable control three-dimensional translation stage 270; the first material modificat...

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Abstract

The invention provides a multifocal lens and a processing device and method thereof. The processing device comprises a femto second laser generator 210, a parameter modulation optical path 220, an optical CCD 230, a semitransparent and semi-reflecting lens 240, an optical focusing lens 250, a hard substrate 260 and a 3D translation platform 270, wherein the femto second laser generator 210 generates femto second laser pulses 280, the femto second laser generator 210, the parameter modulation optical path 220 and the semitransparent and semi-reflecting lens 240 are placed in the same optical path successively, the optical CCD 230, the semitransparent and semi-reflecting lens 240, the optical focusing lens 250 and the hard substrate 260 are placed in the same optical path successively, and the hard substrate 260 is arranged on the 3D translation platform 270. According to the multifocal lens and the processing device and method thereof, technology is simple, and curved surfaces are controllable.

Description

Technical field [0001] The invention relates to the field of microscopic inspection and precision processing, and particularly relates to a multi-focus lens and its processing equipment and processing methods. Background technique [0002] Compared with traditional two-dimensional images, three-dimensional images can reflect more information of the detected object: including three-dimensional spatial structure distribution, three-dimensional spatial organization components, etc. Especially the three-dimensional real-time microscopic detection technology can reflect the dynamic characteristics of the detected object in real time; especially, it plays a very important role in the field of living biological cell detection, microfluidic chip detection and other fields. However, the existing microscopic inspection technology is mainly based on planar microscopic inspection technology, including fluorescence microscope, ordinary optical microscope, optical fiber inspection technology, ...

Claims

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Application Information

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IPC IPC(8): G02B3/10G02B21/02
CPCG02B3/10G02B21/02
Inventor 陈烽杨青边浩杜广庆柳克银
Owner XI AN JIAOTONG UNIV
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