high hat

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high hat

[′hī ‚hat]
(engineering)
A very low tripod head resembling a formal top hat in shape.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

high hat

1. A recessed downlight.
2. A black circular tube which is mounted on the front of a spotlight to reduce the stray light on the sides of the main beam.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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