| 单词 | light valve |
| 释义 | > as lemmaslight valve light valve n. an electrical device which regulates the amount of light passing through it. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > [noun] > regulator, modifier screena1764 light valve1922 reticle1944 1922 Trans. Soc. Motion Picture Engineers No. 14. 73 The light valve consists of a polarizer, an analyzer, and a solenoid between them. 1971 L. B. Happé Basic Motion Pict. Technol. v. 165 In variable density recording the intensity of illumination passing into this lens system from a lamp and condenser lens is modulated by a light valve consisting of a pair of narrow metal ribbons mounted under tension in a magnetic field at right angles to the direction of the film movement. 1993 W. C. O'Mara Liquid Crystal Flat Panel Displays i. 14 Liquid crystals can be used as an optical switch, or light valve. 2017 R. Hoskinson & B. Stoeber in L. A. Francis & K. Iniewski Novel Adv. Microsystems Technol. & Applic. ix. 185 As much of the light as possible from the light source is channelled to the light valve, which in turn relays the formed image through the projection optics to the screen. < as lemmas |
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