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Reflection characteristics of projection screens

โœ Scribed by L.A Jones; M.F Fillius

Publisher
Elsevier Science
Year
1921
Tongue
English
Weight
41 KB
Volume
191
Category
Article
ISSN
0016-0032

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๐Ÿ“œ SIMILAR VOLUMES

Reflection characteristics of projection
Reflection characteristics of projection screens
โœ L.A. Jones; C. Tuttle ๐Ÿ“‚ Article ๐Ÿ“… 1927 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 70 KB

## THE reflection characteristics which are desirable in order that the projection screen shall be adapted to an auditorium of given dimensions are pointed out. The distribution of reflected light should be such that for no angle of observation is the brightness greater than four times that at any

NARROWBAND NOISE ATTENUATION CHARACTERIS
NARROWBAND NOISE ATTENUATION CHARACTERISTICS OF IN-DUCT ACOUSTIC SCREENS
โœ MINHONG RIM; YANG-HANN KIM ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 786 KB

Noise attenuation characteristics of acoustic screens installed in a straight section of a rectangular duct is studied. It was observed that sound path asymmetry\*which arises when an acoustic screen is installed so as to divide the original duct into two asymmetric channels and recombine\*gives ris