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MICROLENS: New Versatile µ-Imprinting Process of Refractive Index Gradient

Domains Health and wellbeing
Energy
Digital

Technologies Sensors
Imaging Technologies for Health
Nanoelectronics

Applications

This technology is a new imprinting method allowing to manufacture micro-GRIN optics (micro-lenses, waveguides…) with unique properties useful in many fields as:

  • Infrared camera,
  • Microscopy,
  • Plenoptic camera,
  • Laser applications,
  • CMOS and CCD sensors,
  • Photovoltaic.

Description

The optical elements are directly formed on a wide variety of vitreous compositions to target transmission from visible to mid-IR spectral domain.

Specifications

  • Transmission window: visible or mid-IR (350 nm to 10 µm) depending on the glass composition
  • Large variety of structures (dots, squares, lines…) from 2 µm to 300 µm – on demand.

Glass

Array surface (mm²)

Micro-lense diameter (µm)

Micro-lense focal length (µm)

Transmission window

 BPN

0.5

2 - 7

5 - 15

Visible
(350 nm – 2 µm)

 Soda-lime

1 - 100

5 - 40

15 - 1000

Visible
(400 nm - 2.5 µm)

Chalcogenide

1 - 30

15 - 40

20 - 1000

IR
(700 nm – 10 µm)

Inventors

Marc DUSSAUZE

Institute of Molecular Sciences (ISM, UMR 5255)

IP

This technology is the subject of a European patent application

Contact

Matthieu AYFRE

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