i think its i a microscope love.
the glory hole, duhhhComment: It's not the 'glory hole' so 'duhhh' to you too!
The condenser is the part of a microscope that has a hole in it to let light through. It focuses and directs light onto the specimen being viewed, helping to illuminate it for observation.
The part on a microscope that has a hole in it to let light through is the stage, where the specimen is placed for viewing under the lenses. By allowing light to pass through, the stage illuminates the specimen for better visibility and analysis.
The scientific term for an object that does not let light through is "opaque." Opaque objects do not allow light to pass through them and therefore block the transmission of light.
The stage in a microscope holds the specimen, usually on a slide, and has an opening in it to permit light to come up through the stage and through the specimen and further on up to the optics.
An object that does not allow light to pass through it is called an opaque object.
Objects that don't let light pass through them are called opaque. These objects absorb or reflect light, preventing it from passing through. Materials like wood, metal, and cardboard are examples of opaque objects.
A black hole.
The scientific term for an object that does not let light pass through is "opaque." Examples of opaque objects include metals, wood, and thick plastics that block the transmission of light.
Translucent (meaning that they let light through). Water is one common example.
The iris (technically the diaphragm) lets light from the lens enter the camera. The entire lens can let light fall on the film or sensor. But, much of the time it doesn't do that. An device called an iris makes the hole through which light passes larger and smaller. When all the way open it lets light from the entire lens reach the film or sensor, but it can make the hole smaller and only allow light from a part of the lens enter.
it doesn't let light through