The Collaborative International Dictionary
Photogram \Pho"to*gram\, n. [Photo- + -gram.] A photograph. [R.]
n. A photograph made without using a camera; normally by placing an object in contact with photosensitive paper and exposing it to light
A photogram is a photographic image made without a camera by placing objects directly onto the surface of a light-sensitive material such as photographic paper and then exposing it to light. The usual result is a negative shadow image that shows variations in tone that depends upon the transparency of the objects used. Areas of the paper that have received no light appear white; those exposed through transparent or semi-transparent objects appear grey.
The technique is sometimes called cameraless photography. It was used by Man Ray in his exploration of rayographs. Other artists who have experimented with the technique include László Moholy-Nagy, Christian Schad (who called them "Schadographs"), Imogen Cunningham and Pablo Picasso. Variations of the technique have also been used for scientific purposes.
Usage examples of "photogram".
There were no windows, so to give an illusion of light and space one wall was covered in a huge photogram showing a tropical beach, with bright blue sky and white sand and coconut palms.
She snapped it with the ordinary photogram camera looped around her left wrist.
But when Kara Antreen was pulled past on a floating stretcher the photogram recorders all swung to follow the procession, and the mediacrowd swam off after them like sharks after chum.
Later, in the dashboard locker she found a set of maps of the Pripet Marshes, a contour photogram of an armpit, and a hundred publicity stills of the screen actress.
The only map I had was a fuzzy recollection of the photogram the Xonijeelians had showed me.
She had seen projected photograms, but nothing in her world had prepared her for the cinema.
He could see little detail in their structure, and even computer-enhanced photograms through the telescope had detected no sign of anything that resembled a sense organ.
If she'd been in the Jordan College Retiring Room when Lord Asriel had projected the photograms he'd made with the special emulsion, she would have recognized the effect.