High Precision Optical Glass Micro Lens Convex Lens

High Precision Optical Glass Micro Lens Small Convex Lens

A microlens is a small lens, generally with a diameter less than a millimetre (mm) and often as small as 10 micrometres (µm).

The small sizes of the lenses means that a simple design can give good optical quality but sometimes unwanted effects arise due to optical diffraction at the small features.
A typical microlens may be a single element with one plane surface and one spherical convex surface to refract the light.
Because micro-lenses are so small, the substrate that supports them is usually thicker than the lens and this has to be taken into account in the design.
More sophisticated lenses may use aspherical surfaces and others may use several layers of optical material to achieve their design performance.

For more information:

+ Right Angle Prism + Laser Line Generator

+ Laser Module + Dielectric Mirror

+ Polished Aspheric Lenses + UV Fused Silica Window

+ Optical Powell lens + Sapphire Windows

+ Nawrrow Bandpass Filter + Beam splitter cube

Product introduction

√ Ball lenses are used particularly as beam collimators for optical fibers (fiber collimators) and for fiber-to-fiber coupling. They are also suitable for miniature optics with applications like barcode scanning, as objective lenses in endoscopy and for optical sensors. There are also microscope objectives (particularly immersion objectives) which have a hyperhemisphere (e.g., somewhat more than a hemisphere) as the first lens.
√ A laser module would include one or more laser diodes as well as some optical and electronic components that are used for running the diodes and beam shaping. All this is usually enclosed in a robust enclosure.
The number of diodes used inside the module and its internal structure is set by module power output, laser beam parameters such us size (diameter) and divergence, and by other properties that are set by the application the laser module is intended for.
The laser beam is emitted from 1 or more semiconductor laser diodes, then optically shaped, joined together and aligned to create a single and focused laser beam coming out of the aperture.
√ Spherical lenses—also sometimes referred to as singlets—are optical lenses that feature a spherical surface with a radius of curvature that is consistent across the entire lens. They are constructed such that the light entering them diverges or converges, depending on the lens design. Concave spherical lenses have a negative focal length that causes incident light to diverge (creating a virtual image). In contrast, convex spherical lenses have a positive focal length that causes incident light to converge (creating real and virtual images). The real images formed are highly focused, while the virtual images formed are highly magnified.

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