In a confocal microscope, light passes through a pinhole to eliminate photons from outside the image plane. |
He even made a giant pinhole camera out of a fridge and photographed its contents. |
The device also incorporates a pinhole camera which records the cardholder inputting his or her personal identification number. |
Optically, pinhole images, because they are created by diffraction, are a recording of diffracted light. |
He uses a truck as a gigantic pinhole camera and has the image projected on colour negative paper. |
Tape the foil over the hole in the bottom of the canister, so the pinhole is centered. |