Figure 3 illustrates the effect of ultrasonic vibration time on the dimensions of the embossed concave
microlens array pattern.
Han, "A novel refractive silicon
microlens array using bulk micromachining technology," Sensors and Actuators A: Physical, vol.
The multifocus excitation method forms multiple focal spots on a sample by using
microlens array, and CARS signals generated at the focal spots are simultaneously observed with a two-dimensional image sensor.
Alaa Bader, Irradiance distribution of image surface in
microlens array solar concentrator, ARPN Journal of Engineering and applied Sciences, 8: 10.
However, the images are rendered into 12-pixel wide circular blocks, which are then projected through a 3D printed
microlens array consisting of over 16,000 fisheye lens.
The prominent characteristic of noncontact microembossing technology is that the planoconvex microlenses can be formed by surface tension, which avoids direct contact between the
microlens array surface and the mold's inner surface.
To improve the sensitivity or qE of front illuminated charged couple device (CCD) and CMOS image sensors without increasing their pixel size, digital cameras manufacturers apply a thin (0.5-1.0 mm thickness) and inexpensive
microlens array to the sensors to reach high ISO levels [26].