Transcription of Head-Mounted Displays - davi.ws
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Head-Mounted Displays - davi.ws
2001 by CRC Press LLC 5 Head-Mounted Displays Int roduction What Is an HMD? Image Sources for HMDs Optical Design Head Mounting The HMD as Part of the Visually Coupled System HMD System Considerations and Trade-Offs Ocularity Field of View and Resolution Luminance and Contrast in High Ambient Luminance Environments Summary Recommended Reading References Introduction Head-Mounted Displays (HMD)* are personal information-viewing devices that can provide informationin a way that no other display can. While they can be used as hands-off information sources, the displayedvideo can also be made reactive to head and body movements, replicating the way we view, navigatethrough, and explore the world. This unique capability lends itself to applications such as Virtual Realityfor creating artificial environments, 1 to medical visualization as an aid in surgical procedures, 2,3 to militaryvehicles for viewing sensor imagery, 4 to airborne workstation applications reducing size, weight, andpower over conventional Displays , 5 to aircraft simulation and training, 6 8 and (central to this chapter) forfixed and rotary wing avionics display applications.
© 2001 by CRC Press LLC 5.2 What Is an HMD? In its simplest incarnation, an HMD consists of one or more image sources, collimating optics, and a
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