When this research was performed, the authors were with the Department of Physics, Technion–Israel Institute of Technology, Haifa 32000, Israel.

1.93 lb to kg

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We measured the modulation transfer function (MTF) of a lens in the visible region using a random test target generated on a computer screen. This is a simple method to determine the entire MTF curve in one measurement. The lens was obscured by several masks so that the measurements could be compared with the theoretically calculated MTF. Excellent agreement was obtained. Measurement noise was reduced by use of a large number of targets generated on the screen.

1.68lb to kg

M. Opher-Lipson is now with the Electronics Material Laboratory, Department of Materials Science and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307.

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1.68lb to oz

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1.68lb to grams

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We measured the modulation transfer function (MTF) of a lens in the visible region using a random test target generated on a computer screen. This is a simple method to determine the entire MTF curve in one measurement. The lens was obscured by several masks so that the measurements could be compared with the theoretically calculated MTF. Excellent agreement was obtained. Measurement noise was reduced by use of a large number of targets generated on the screen.