Sample zemax file micro lens for downloading

#Sample zemax file micro lens for downloading full#
#Sample zemax file micro lens for downloading software#

For information on recommended applications for specific objectives, see below.Р”Р„ll objectives featured on this page are compatible with our microscope nosepiece modules for DIY Cerna Р’В® systems, which accept RMS, M25 x 0.75, or M32 x 0.75 objective threading. Our selection of dry objectives can be used in applications from microscopy to fiber coupling and includes options optimized for use at wavelengths from the UV to the NIR. See the Magnification and FOV tab for more information. Please note that the performance of each objective may vary from the engraved specifications when integrated with components and systems from different manufacturers.

#Sample zemax file micro lens for downloading full#

A full list of specifications for each objective can be found in the Specs tab above. Before interchanging objectives, be sure to check the design tube lens focal length and the threading type of the objectives. When choosing a microscope objective, it is important to keep in mind that objectives are often designed to integrate with a particular manufacturer's microscopes. For details about the differences between these types of objectives, please see the Objective Tutorial tab above. Super apochromat, plan achromat, plan apochromat VIS +, plan apochromat, and plan fluorite (also called plan semi-apochromat or plan fluor) designs are available. Thorlabs offers dry objectives made in house, as well as objectives from Olympus, Nikon, and Mitutoyo. Moreover, the gain in sensitivity on-axis due to the larger size of a square base is relatively small, and is offset by a significant loss in relative illumination versus incidence angle.(See Objective Tutorial Tab for More Information About Microscope Objective Types) Furthermore, even though the photosensitive area is rectangular, the best base shape for the micro lens is not necessarily a square: a significant portion of the photon gain due to the base shape (square or octagonal) is lost in the non-sensitive area of the pixel. Concerning the cross sectional shape, our results show that it is important to optimise the process to obtain a spherical one.

#Sample zemax file micro lens for downloading software#

For this study we used the optical modelling software ZEMAX (ray tracing) and modelled the CMOS image sensor by a simple optical system: micro lens, media ('stack') with particular optical properties and a photosensitive area.

Especially we have evaluated the influence of micro lens cross sectional and base shapes on the light focusing and sensitivity. The aim of this study is to optimise the micro lens to maximise photon collection in the photodiode. In order to focus the maximum number of photons on the optically sensitive area of the pixel, a micro lens is fabricated on the top of the stack. The CMOS process also results in the presence of a stack of layers (dielectric and metallic) with specific optical properties, deposited above the photo sensitive area. Microlens design for CMOS image sensor Microlens design for CMOS image sensorР”В¬MOS image sensors include control transistors in the pixel itself, which generally results in a square or rectangular shape in the design of the photo sensitive surface, which is thus much smaller than the total pixel surface.