A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 566
ll patchof light at the image, which isthen sharp and well defined.If, however, the hole is large,there is considerable over-lapping of the patches andthe image is blurred, althoughbright, the amount of lightpassing through the hole being^reat. Further, the image isinverted, since all the… … Fig. 491.—Pin-hole camera. mage will become smaller and brighter, but it will be noted thatt becomes more blurred, owing to the increased overlapping ofhe patches of light. Expt. 113.—Pin-hole camera. Obtain an ordinary cardboard box;emove one side or end and replace it by a sheet of oiled paper,…
Physics
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