Helmet-Mounted Displays: - USAARL - The - U.S. Army

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280 Notes on Contributors Aeromedical Research Laboratory, Fort Rucker, Alabama. He received his optometry degree (OD) from Illinois College of Optometry, Chicago, Illinois, and a M.S. in physiological optics from the University of Houston, Houston, Texas. Major McLean retired from the Armed Forces in 1985. From 1985 to 1988 he was a member of a design and evaluation team at Hamilton Standard for prototype helmet mounted displays developed for flight simulation, helicopter flight, astronauts, and the infantry soldier. These developments resulted in two patents. From 1988 to 1991, he was a human factors engineer in optics at the Human Engineering Laboratory in Aberdeen, Maryland, where he modeled target and background contrast variations in the field and unaided visual detection of simple and complex targets. Since 1991 he has primarily evaluated night vision devices and the optical characteristics of safety and protective mask lenses. John C. Mora is an Electro-Optics Research Assistant for the U.S. Army Aeromedical Research Laboratory, Fort Rucker, Alabama. He received his B.A. in human biology from the University of Northern Colorado, Greeley, Colorado. He is currently serving in the U.S. Army as a Medical Lab Technician\Biological Research Assistant. His recent research areas have included the evaluation of the RAH-66 Comanche Helmet Integrated Display Sight System (HIDSS) helmetmounted display, the association between visor use and facial injuries during helicopter accidents, cathode ray tube and flat panel display evaluation, and corneal topography. Ben T. Mozo is a Research Physicist for the U.S. Army Aeromedical Research Laboratory, Fort Rucker, Alabama. He received his B.S. in physics from the University of West Florida, Pensacola, Florida. He has more than 25 years experience in the research area of noise hazards with primary emphasis on improving personal communication and hearing protection provided for the soldier. He was recently awarded The Order of Aeromedical Merit from the Society of U. S. Army Flight Surgeons for the development of the Communications Earplug (CEP), which uses passive sound attenuation to achieve noise reduction and speech communication. Clarence E. Rash is a Research Physicist for the U.S. Army Aeromedical
Notes on Contributors 281 Research Laboratory, Fort Rucker, Alabama. He received his M.S. in physics from Old Dominion University at Norfolk, Virginia. In 1970, he attended Columbia University at New York City, New York, under a National Aeronautics and Space Administration (NASA) scholarship in astrophysics. He has served as a principal investigator in the fields of optics and electro-optics for 20 years, contributing to such diverse areas as optical media, laser protection, visual performance, and image quality for active and passive imaging systems. He has directed a helmet-mounted display performance research program working closely with the AH-64 Apache Integrated Helmet and Display Sight System (IHADSS), the RAH- 66 Comanche Helmet Integrated Display Sight Program (HIDSS), Land and Air Warrior, and other helmet-mounted display programs. His current interest focuses on developing new image quality figures of merit for flat panel technology displays. He has over seventy-five papers and presentations in the display field and is actively involved in the Society of Information Display and SPIE - The International Society for Optical Engineering.
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Helmet-Mounted Displays: Design Iss
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The views, opinions, and/or finding
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vi Contents 4. Visual Coupling Clar
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viii Contents References ..........
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x Ben T. Mozo, Research Physicist U
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xii Foreword began its phenomenal e
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xiv Preface Acknowledgments The aut
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Introductory Overview 1 Clarence E.
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Introductory Overview 5 Figure 1.2.
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Introductory Overview 7 The trend f
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Introductory Overview 9
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Introductory Overview 11 aviator to
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Introductory Overview 13 1970's. Ta
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Introductory Overview 15 Image sour
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Introductory Overview 17
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Table 1.3. HMD performance figures-
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Introductory Overview 21 direct vie
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Introductory Overview 23 Figure 1.9
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Introductory Overview 25 Figure 1.1
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Introductory Overview 27 Ercoline,
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Introductory Overview 29 II, Procee
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Introductory Overview 31 Armstrong
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34 Clarence E. Rash, Melissa H. Led
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40 Liquid crystal Clarence E. Rash,
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Optical Designs 3 William E. McLean
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Optical Designs 57 and plotted in l
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Optical Designs 59 phosphors, (b) u
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Optical Designs 61 optics. Examples
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Optical Designs 63
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prism combiner. Optical Designs 65
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Figure 3.2. (continued) Optical Des
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Optical Designs 69
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Optical Designs 71 Figure 3.4. Comp
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Optical Designs 73 Figure 3.6. Opti
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Optical Designs 75 Figure 3.8. Refl
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Optical Designs 77 Figure 3.9. Ray
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Optical Designs 79 incidence and re
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80 Clarence E. Rash hinted at befor
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82 Clarence E. Rash metal tolerant
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84 Clarence E. Rash the performance
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86 Clarence E. Rash Figure 4.3. Hig
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88 Clarence E. Rash imagery in HMDs
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90 Clarence E. Rash as with ANVIS.
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92 Clarence E. Rash performance, on
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94 Clarence E. Rash effects on visu
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96 Clarence E. Rash concerning roll
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98 Aeromedical Research Laboratory.
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DESIGN ISSUES PART TWO
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102 Clarence E. Rash and William E.
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104 Contrast Clarence E. Rash and W
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168 Number of SOG = � log (C r) /
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Visual Performance 6 William E. McL
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Visual Performance 171 observer is
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seen. Visual Performance 173 Figure
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Visual Performance 175 perception.
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Visual Performance 177 with monovis
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Visual Performance 179 individuals
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Visual Performance 181 0 to -5.25 d
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Visual Performance 183 Report No. 9
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Biodynamics 7 B. Joseph McEntire He
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Biodynamics 187 behavior of this de
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Figure 7.2. Head anatomical coordin
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Biodynamics 191
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Biodynamics 193 al., 1972), and man
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Biodynamics 195 Figure 7.5. Vertica
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Biodynamics 197 disability and fata
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Biodynamics 199 been fabricated int
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Biodynamics 201 Ty pic al acc ele r
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Biodynamics 203 exceed the mechanic
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Biodynamics 205 complexity and comp
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Type Reference helmet Foam in place
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Biodynamics 209 the fitting problem
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Biodynamics 211 adjustment buckle,
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Biodynamics 213 down. The helmet ma
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Biodynamics 215 Desert Shield/Deser
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Biodynamics 217 Donelson, S. M., an
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219 Fort Rucker, AL: U.S. Army Aero
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220 Ben T. Mozo Figure 8.1. Noise l
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222 Ben T. Mozo available in the ne
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224 Ben T. Mozo Protectors”(ANSI,
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226 Ben T. Mozo language. Tests of
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Page 249 and 250: 230 Ben T. Mozo the communications
Page 251 and 252: 232 Ben T. Mozo Item Mass (grams) C
Page 253 and 254: Ribera, J. E., and Mozo, B. T. Unda
Page 255 and 256: 236 Joseph R. Licina operational us
Page 257 and 258: 238 Joseph R. Licina Standard MIL-S
Page 259 and 260: 240 Joseph R. Licina On electro-opt
Page 261 and 262: 242 Joseph R. Licina For HMDs with
Page 263 and 264: 244 Joseph R. Licina 1994b) that wi
Page 265 and 266: 246 Joseph R. Licina Table 9.2. Hea
Page 267 and 268: 248 Joseph R. Licina provided a 93.
Page 269 and 270: 250 Joseph R. Licina and buckles, a
Page 271 and 272: 252 Joseph R. Licina authorized to
Page 273 and 274: 254 Joseph R. Licina a nuclear flas
Page 275 and 276: 256 Joseph R. Licina requirements:
Page 277: HMD PERFORMANCE ASSESSMENT PART THR
Page 280 and 281: 262 Clarence E. Rash, John C. Mora,
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Page 288 and 289: 270 making stereoposis possible. Bi
Page 290 and 291: 272 John C. Mora and M elissa H. Le
Page 297: NOTES ON CONTRIBUTORS Melissa H. Le
Page 303 and 304: 284 Index Breakaway force (see Fran
Page 305 and 306: 286 Index movement, 55, 80, 84, 90,
Page 307 and 308: 288 Index 198, 204, 205, 208, 210,
Page 309 and 310: 290 Index Microphone, 15, 186, 224,
Page 311 and 312: 292 Index Speech intelligibility (S
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