Helmet system having adjustable light transmission
First Claim
1. A HMD system comprising:
- a visor mounted on a head of a user, said visor including an adjustable light transmission layer activated by activation radiation including at least a visible activation waveband and an Ultra Violet (UV) activation waveband, said visor defining a Line Of sight (LOS) projecting from a point on said visor, said visor defining a Field Of View (FOV) associated with said LOS and projecting from at least a section of said visor that surrounds said point on said visor, said visor configured to admit an outside scene image, said FOV covering only a portion of the entire scene available to the user;
a luminosity sensor configured to detect luminosity within said FOV, thereby providing luminosity measurement associated with said LOS of said visor mounted on said head of said user; and
a UV activation radiation source configured to selectively irradiate at least a portion of said visor with activation UV light included in said UV activation waveband according to luminosity measurement associated with said LOS of said visor mounted on said head of said user detected by said luminosity sensor, thereby activating said adjustable light transmission layer;
wherein, said HMD system being located in a UV-attenuated environment such that said adjustable light transmission layer being activated by activation ambient light in said visible activation waveband, and can further be activated by activation UV light emitted from said UV activation radiation source.
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Accused Products
Abstract
A HMD system including a visor mounted on a head of a user. The visor includes adjustable light transmission layer activated by activation radiation of at least a visible activation waveband and an Ultra Violet (UV) activation waveband. The visor defines a Line Of sight (LOS) projecting from a point on the visor and further defines a Field Of View (FOV) projecting from at least a section of the visor that surrounds the point on the visor. The visor is configured to admit an outside scene image. The HMD system further includes a luminosity sensor configured to detect luminosity within the FOV and a UV activation radiation source configured to selectively irradiate at least a portion of the visor with activation UV light included in the UV activation waveband according to luminosity detected by the luminosity sensor, thereby activating the adjustable light transmission layer.
30 Citations
14 Claims
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1. A HMD system comprising:
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a visor mounted on a head of a user, said visor including an adjustable light transmission layer activated by activation radiation including at least a visible activation waveband and an Ultra Violet (UV) activation waveband, said visor defining a Line Of sight (LOS) projecting from a point on said visor, said visor defining a Field Of View (FOV) associated with said LOS and projecting from at least a section of said visor that surrounds said point on said visor, said visor configured to admit an outside scene image, said FOV covering only a portion of the entire scene available to the user; a luminosity sensor configured to detect luminosity within said FOV, thereby providing luminosity measurement associated with said LOS of said visor mounted on said head of said user; and a UV activation radiation source configured to selectively irradiate at least a portion of said visor with activation UV light included in said UV activation waveband according to luminosity measurement associated with said LOS of said visor mounted on said head of said user detected by said luminosity sensor, thereby activating said adjustable light transmission layer; wherein, said HMD system being located in a UV-attenuated environment such that said adjustable light transmission layer being activated by activation ambient light in said visible activation waveband, and can further be activated by activation UV light emitted from said UV activation radiation source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for operating an HMD system, comprising the following procedures:
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determining an FOV defined by a visor of said HMD system and associated with the Line-Of-Sight (LOS) of a user, said FOV covering only a portion of the scene available to said user; measuring luminosity within said FOV by employing a luminosity sensor, thereby providing a LOS associated luminosity measurement; determining whether said LOS associated luminosity measurement, measured within said FOV, exceeds a desired light transmission level of said visor; and irradiating said visor with UV radiation for adjusting the light transmission layer. - View Dependent Claims (14)
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Specification