(optics) Special glass in condenser lens systems to keep heat from film.
heat filter
| Sci-Tech Dictionary: heat filter |
(′hēt ′fil·tər)
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| Architecture: heat filter |
An optical filter placed in a light path to reduce heating effect of a light source; transmits the visible spectrum of the light radiated by the source, but rejects the near-infrared radiation.
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| Air conditioning (mechanical engineering) |
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Architecture. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
