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

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Table 1.3. HMD performance figures-of-merit. Introductory Overview 19
20 Clarence E. Rash (Rash et al., 1996; Task and Verona, 1976) Optical system Visual <strong>Helmet</strong> Human factors Prismatic deviation Residual refractive power FOV Percent overlap Extraneous reflections Biocular channel disparities and misregistration Chromatic aberrations Exit pupil size and shape Image overlap Static and dynamic MTFs Distortion Spherical/ astigmatic aberrations Visual acuity Visual field See-through luminous transmittance See-through color discrimination Ocular responses Depth perception and stereopsis Illusionary effects Visual problems Head supported weight CM offset Impact attenuation Shell tear resistance Fitting system characteristics HMD breakaway force Anthropometric fitting range Visor optical characteristics Tracking accuracy Tracking resolution Tracking system update rate Tracking system motion box size Tracking system jitter Earphone/earcup characteristics Real-ear attenuation Physical-ear attenuation Speech intelligibility Interpupillary distance range Physical eye relief User adjustmentsselection and range Equipm ent compatibility Training requirements Egress characteristics Fit procedure screen or roll of film, and is a virtual image if it is formed within the system, where it is viewed by looking into one end of the system. Examples of real images include those produced by slide and movie projectors, captured on film by a camera, and formed on the retina by the
Page 1: Helmet-Mounted Displays: Design Iss
Page 4 and 5: The views, opinions, and/or finding
Page 6 and 7: vi Contents 4. Visual Coupling Clar
Page 8 and 9: viii Contents References ..........
Page 10: x Ben T. Mozo, Research Physicist U
Page 13 and 14: xii Foreword began its phenomenal e
Page 15 and 16: xiv Preface Acknowledgments The aut
Page 18 and 19: Introductory Overview 1 Clarence E.
Page 20 and 21: Introductory Overview 5 Figure 1.2.
Page 22 and 23: Introductory Overview 7 The trend f
Page 24 and 25: Introductory Overview 9
Page 26 and 27: Introductory Overview 11 aviator to
Page 28 and 29: Introductory Overview 13 1970's. Ta
Page 30 and 31: Introductory Overview 15 Image sour
Page 32 and 33: Introductory Overview 17
Page 36 and 37: Introductory Overview 21 direct vie
Page 38 and 39: Introductory Overview 23 Figure 1.9
Page 40 and 41: Introductory Overview 25 Figure 1.1
Page 42 and 43: Introductory Overview 27 Ercoline,
Page 44 and 45: Introductory Overview 29 II, Procee
Page 46: Introductory Overview 31 Armstrong
Page 49 and 50: 34 Clarence E. Rash, Melissa H. Led
Page 55 and 56: 40 Liquid crystal Clarence E. Rash,
Page 70 and 71: Optical Designs 3 William E. McLean
Page 72 and 73: Optical Designs 57 and plotted in l
Page 74 and 75: Optical Designs 59 phosphors, (b) u
Page 76 and 77: Optical Designs 61 optics. Examples
Page 78 and 79: Optical Designs 63
Page 80 and 81: prism combiner. Optical Designs 65
Page 82 and 83: 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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228 Ben T. Mozo Figure 8.6. Speech
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230 Ben T. Mozo the communications
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232 Ben T. Mozo Item Mass (grams) C
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Ribera, J. E., and Mozo, B. T. Unda
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236 Joseph R. Licina operational us
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238 Joseph R. Licina Standard MIL-S
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240 Joseph R. Licina On electro-opt
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242 Joseph R. Licina For HMDs with
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244 Joseph R. Licina 1994b) that wi
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246 Joseph R. Licina Table 9.2. Hea
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248 Joseph R. Licina provided a 93.
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250 Joseph R. Licina and buckles, a
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252 Joseph R. Licina authorized to
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254 Joseph R. Licina a nuclear flas
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256 Joseph R. Licina requirements:
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HMD PERFORMANCE ASSESSMENT PART THR
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262 Clarence E. Rash, John C. Mora,
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Glossary 11
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270 making stereoposis possible. Bi
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272 John C. Mora and M elissa H. Le
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NOTES ON CONTRIBUTORS Melissa H. Le
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Notes on Contributors 281 Research
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284 Index Breakaway force (see Fran
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286 Index movement, 55, 80, 84, 90,
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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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Helmet-Mounted Displays: - USAARL - The - U.S. Army

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