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Advanced Condenser Systems: Abbe CondensersMarchantia Mature SporophyteThe images below compare performance of the Intel Play QX3 Computer Microscope with and without the aid of an organized cone of illumination from a substage condenser containing an aperture diaphragm. The digital images are unretouched and were captured with the QX3 interactive software. These mature sporophytes are the asexual reproductive form for the Marchantia order of Bryophytes, mosslike plants of the division Bryophyta, also known as liverworts, or "liver plants." The thallus, part of the plants' anatomy, has the appearance of a lobed liver, which gave rise to the name. Bryophytes are ancient plants and have a worldwide distribution, but most commonly are found in the tropics. Liverworts don't contribute directly to the human economy, but do provide food for animals, facilitate the decay of fallen trees, and help disintegrate rocks. Marchantia Mature Sporophyte Long Section(200x magnification) Semi-transparent and lightly stained specimens are often very difficult to image using unaided brightfield optical microscopy. The images presented here were recorded using the Intel Play QX3 microscope in transmitted brightfield mode. On the top is a digital image from a stock QX3 microscope using either auxiliary illumination provided by a fiber optic light pipe through a hole drilled into the mixing chamber, or standard illumination from the microscope's tungsten lamp and mixing chamber. The image on the bottom was recorded using the QX3 microscope body coupled to a simple two-lens Abbe low numerical aperture substage condenser. Illumination was provided by a 30 watt tungsten bulb housed in an illuminator with a heat sink, a frosted diffusion screen, and a daylight color-compensating filter. BACK TO ABBE CONDENSER BRIGHTFIELD GALLERY Questions or comments? Send us an email.© 1995-2022 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
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