Title:
【発明の名称】ヘルメット取り付けディスプレイ
Document Type and Number:
Japanese Patent JP3105534
Kind Code:
B2
Abstract:
A holographic objective system (3) produces an intermediate real image (4) of information displayed on an electrically addressable spatial light modulator SLM (1), the real image (4) being collimated by a powered holographic reflector (5) constructed as part of the visor of a helmet worn by the viewer (9). The SLM (1) is illuminated by laser light from a remote laser (8) via a single optical fibre (6) and beam splitter (2). A diffuser (7) is provided either between the laser and the beam splitter or in the plane of the intermediate image (4). The objective system (3) may alternatively include, or consist entirely of, conventional optical elements.
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Inventors:
Kennis Firth
Roger Martin Langdon
Roger Martin Langdon
Application Number:
JP29966290A
Publication Date:
November 06, 2000
Filing Date:
November 05, 1990
Export Citation:
Assignee:
GC Marconi Limited
International Classes:
G02B6/00; G02B5/32; G02B27/01; G02B27/28; G02F1/01; G09B9/30; H01S1/00; G02B5/30; G02B27/00; (IPC1-7): G02B27/02; G02B5/32; G02B6/00; G02B27/28; G02F1/01; H01S1/00
Domestic Patent References:
| JP624699A | ||||
| JP263379A |
Other References:
【文献】米国特許4349815(US,A)
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)