Lens has various forms of usages and various forms of constructions being made with different materials. Science has given us the most significant invention in optics with the lens. Since its first appearance in the sixteenth century, the lens has been modified in various forms today and we are given the best help in the optical arena.
Microlens Array is a group of tiny, sub-millimeter lenses that are being used in a wide range of optical applications. Besides this, there are many other important things that you must know about Microlens Arrays.
What Microlens Arrays are Made of?
Microlens Arrays are usually sub-millimeter arrays of lenses specially designed for optical uses as a collection on CCD arrays, cameras, microscope, sensor, etc. It is both available in spherical and aspherical lens shapes in both one and two-dimensional quality. It is manufactured with fused silica and nickel using the methodology of photolithography.
How Does It Work?
It is used in the focusing and Imaging of lights. The lens focuses on the light from a single mode optical fiber onto a device and then backs it in another fiber. It does the fiber to lens positioning in a single step. So the form and position of Microlens stay intact.
Microlens Array Specifications:
- Size- 300mm to 400mm
- Materials- Fused silica, and nickel
- Distribution- Hexagonal closed packed, square and hexagonal, not closed pack, custom.
- Fill factor- Up to 99%
- Chemical resistance- Most common solvents
- Sag- up to 50µm
Microlens has its increasing market along the world, offering a confocal microscope, digital projectors, display with HUD, illuminating system, etc. The efficiency of CCD arrays is increased by Microlens Array. The combination of Microlens Arrays is used to form an image at unit magnification. Also, the arrays are used as imaging devices applications as mobile cameras and photocopiers.
Difference with Macro Lens:
This is a common query among the folks. But the fact is, though there is a difference between micro and macro, when it comes to lenses there is actually no difference. They are the same things named different by two different brands. They can be used interchangeably.
In the optic world, the micro lens is ruling in every form and is being well-accepted for its usefulness in a growing number of applications. Their customized properties are improving the performance of many devices, effectively filling the gap between the rising numbers of applications.