he experimented with multiple lens placed in a tube. the object in front of the tube appeared greatly enlarged
A diverging lens can produce several types of images, depending on the location of the object relative to the lens. Typically, a diverging lens will produce a virtual, upright, and reduced image for objects placed beyond the lens' focal point.
The eyepiece lens, also known as the ocular lens, is located on the superior end of the body tube on a microscope. This lens is where you look through to observe the specimen on the slide.
A lens tube is a cylindrical attachment that fits onto the front of a camera lens to provide additional protection, support, or functionality. It can help prevent damage to the lens, reduce lens flare, or allow for the attachment of filters or hoods.
The Body Tube
body tube - for microscope
The microscope contains an objective lens at the top of the body tube. This lens is responsible for magnifying the specimen being viewed, focusing the light, and producing an initial image for further magnification.
It is important that the conjunctiva in which the plate is placed is not scarred; that the cornea is clear; and that there are no attachments of the iris to the lens behind it or to the cornea in front of it.
When an object is placed closer to a convex lens, the image that is formed will be farther away from the lens than the object is. This is because the convex lens will refract the light rays in a way that causes them to converge at a point behind the lens, creating a real and magnified image.
The objective lens focuses and magnifies the object and transmits this image into the body tube of the microscope.
Specimens are placed between glass slides which are then placed between a light source and a magnifying lens. There are focusing adjustments which change the magnification of the lens.
Tube is the second microscope part from the top. The tube connects the eyepiece or ocular lens to the objective lenses.