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Since the start of manned space flight, the physical and mental wellbeing of the crew have been of great importance. Star Ship designers have included gyms and other various recreation facilities to give the crews areas to exercise and relax while enjoying a variety of pastime activates.

The development of the Holographic Environment Simulator or Holodeck has allowed ships to provide a wider range of environments and activates than earlier ship designs. While the Holodecks primary purpose is recreation it has proven equally effective for crew training and investigations.

Holodeck Operations:

When in operation the Holodeck crates the user requested environment and all the objects including any people within the environment. This is done by the holodecks Omnidirectional holo diodes which provide visual and tactile stimuli to the user. An array of speakers, and atomizers are employed to provide sounds and smells to complete the illusion that the simulated environment is real.

Dedicated high speed subsections of the ships main computer core are dedicated to the control and operation of the holodeck. The holodeck subprocessors located with the holodeck arch are connected to the main computer core via dedicated ODN cables.

The control software for the holodecks are programed to ensure that the user does not suffer serious bodily harm but minor injuries such as sprains or bruises are still possible.

Holodeck Components:


The holodeck Arch is located in the interior of the holodeck and surrounds the exit. The arch houses the primary holodeck subprocessors and a physical control surface for the user to program the requested environment into the holodeck or search a list of preexisting programs. During normal holodeck operations the arch is hidden while a program is running. The verbal command “Arch” will cause the arch to appear allowing a user to exit the holodeck while the program is running.

Omnidirectional holo diode:

The Omnidirectional holo diode (OHD) is the primary mechanism for generating a holographic environment. Each diode is comprised of two sections. An inner Optic section that projects images into the environment and an outer section that projects the force fields required to create the illusion of solid objects. This section is also responsible for generating the force filed treadmill effect that allows the user to explore a simulated environment that is larger than the interior dimensions of the holodeck.

The inner optic section emits a complete image of an overall environment based on its location in the installed surface panel and the exact placement of the panel within the holodeck. The user sees only a tiny portion of any image emitted by the optic section of an OHD. As the user moves through the environment the visible portions of the image change altering the view. The energy emissions of the optic section are polarized interference patters instead of visible EM projections. The image is reconstructed where the patter intersects at the lens of the user, or any visual receptor.

The outer forcefield section creates tiny steerable forcefields. While the forcefields generated by an individual OHD is not able to create the allusion of a solid object multiple OHD’s operating under computer control working in groups are able do so thanks to the accumulative effects of the multiple fields generated by each OHD. To recreate a solid object the appropriate OHDs to intersect their fields at the required polygon coordinates. The filed strength is tuned to simulate the proper hardness of the simulated object. When used to create the treadmill effect the required OHDs are directed via computer control to intersect their fields beneath the user’s feet.