US3600055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holographic flight simulator
Assignee: Lockheed Martin Tactical Systems Inc
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Filing: 1969-11-17
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Granted: 1971-08-17
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Expires: 1989-11-17
Abstract
Abstract The invention provides real time simulation techniques based on the use of holographic data storage. It possesses all of the advantages of a three-dimensional model optical pickup simulator and almost none of the disadvantages. The use of holograms eliminate the need for large models and associated structures. Coherent light and a plurality of channels, each channel controllable, and each channel adapted to receive separate holograms arranged in appropriate sequence to give simulation of motion in any of 6* of movement comprise the structural embodiment.
Inventors
- 👤 Robert M Emerick
- 👤 James A Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:26
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/32; G09B9/326
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
347 words
A simulation system comprising: a light source for projecting a coherent light beam; means for dividing the light beam into at least two separate channels; means for selectively controlling light passage along each channel; a hologram position in each channel; means for moving the hologram along the path of travel of the light beam of the respective channel, the movement being between first and second end positions; means for actuating the light passage controlling means in response to hologram position whereby the hologram of one channel is illuminated as the hologram moves between its first and second end positions, illumination is removed from the hologram of the one channel when that hologram has reached the second end position, and a hologram of a second channel is simultaneously illuminated, the last-mentioned hologram being at the first end position of movement in its respective channel; the hologram of the second being generated along the same line of sight to an object as the hologram of the first channel, the separation between the respective points of generation being such that the image received by the optical pickup means from the hologram of the first channel when said hologram is at its second end position is identical to the image received from the hologram of the second channel when said hologram is at its first end position; means for directing the image generated by the hologram of each channel to a common channel; optical pickup means receiving the image directed along the common channel to effect a visual display thereof; means to effect movement of the optical pickup in x,y,roll, yaw and pitch directions while viewing the coherent light received from each respective channel; a rack associated with each channel, means to drive the racks in opposite phased synchronism to each other, and means to have each rack carry a hologram in properly oriented relation to its respective channel; and a monitor channel associated with each channel, a control panel to selectively actuate each channel, and means to feed the information received by the monitor channel back to the control panel.
Claim 2
Dependent Claim
347 words
A simulation system comprising: a light source for projecting a coherent light beam; means for dividing the light beam into at least two separate channels; means for selectively controlling light passage along each channel; a hologram position in each channel; means for moving the hologram along the path of travel of the light beam of the respective channel, the movement being between first and second end positions; means for actuating the light passage controlling means in response to hologram position whereby the hologram of one channel is illuminated as the hologram moves between its first and second end positions, illumination is removed from the hologram of the one channel when that hologram has reached the second end position, and a hologram of a second channel is simultaneously illuminated, the last-mentioned hologram being at the first end position of movement in its respective channel; the hologram of the second being generated along the same line of sight to an object as the hologram of the first channel, the separation between the respective points of generation being such that the image received by the optical pickup means from the hologram of the first channel when said hologram is at its second end position is identical to the image received from the hologram of the second channel when said hologram is at its first end position; means for directing the image generated by the hologram of each channel to a common channel; optical pickup means receiving the image directed along the common channel to effect a visual display thereof; means to effect movement of the optical pickup in x,y,roll, yaw and pitch directions while viewing the coherent light received from each respective channel; a rack associated with each channel, means to drive the racks in opposite phased synchronism to each other, and means to have each rack carry a hologram in properly oriented relation to its respective channel; and a monitor channel associated with each channel, a control panel to selectively actuate each channel, and means to feed the information received by the monitor channel back to the control panel.
Claim 3
Dependent Claim
17 words
A simulation systEm according to claim 1 which includes a beam splitter associated with each monitor channel.
Claim 4
Dependent Claim
32 words
A system according to claim 1 which includes a microswitch associated with each rack actuated upon a predetermined movement of its rack to effect reversal of the means to drive the racks.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |