Projection system and method
First Claim
1. A projection system configured to operate with at least one of first and second projection modes, the system comprising:
- (i) a light source system including one or more light source assemblies, the light source assembly being operable to generate light of one or more predetermined wavelength range;
(ii) a spatial light modulator (SLM) system including one or more SLM units operable to spatially modulate input light in accordance with an image to be directly projected or viewed;
(iii) two optical assemblies associated with two spatially separated light propagation channels, respectively, to direct light to, respectively, the first and second projection planes with desired image magnification;
the system being configured to selectively direct the input light propagating towards the SLM system or light modulated by the SLM system to propagate along at least one of the two channels associated with the first and second projection planes, respectively.
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Accused Products
Abstract
An image projection system and method are presented to project an image on at least one of first and second projection planes. The system comprises a light source system including one or more light source assemblies operable to generate light of one or more predetermined wavelength range; a spatial light modulator (SLM) system including one or more SLM units operable to spatially modulate input light in accordance with an image to be directly projected or viewed; and two optical assemblies associated with two spatially separated light propagation channels, respectively, to direct light to, respectively, the first and second projection planes with desired image magnification. The system is configured to selectively direct the input light propagating towards the SLM system or light modulated by the SLM system to propagate along at least one of the two channels associated with the first and second projection planes, respectively.
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Citations
88 Claims
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1. A projection system configured to operate with at least one of first and second projection modes, the system comprising:
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(i) a light source system including one or more light source assemblies, the light source assembly being operable to generate light of one or more predetermined wavelength range;
(ii) a spatial light modulator (SLM) system including one or more SLM units operable to spatially modulate input light in accordance with an image to be directly projected or viewed;
(iii) two optical assemblies associated with two spatially separated light propagation channels, respectively, to direct light to, respectively, the first and second projection planes with desired image magnification;
the system being configured to selectively direct the input light propagating towards the SLM system or light modulated by the SLM system to propagate along at least one of the two channels associated with the first and second projection planes, respectively. - View Dependent Claims (2, 4, 5, 7, 8, 10, 11, 12, 13, 15, 18, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 72, 75, 76, 77, 79, 80, 81, 82, 83, 84, 85)
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3. (canceled)
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46. An image projecting method, the comprising:
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operating a spatial light modulating (SLM) system, including one or more SLM units located in the propagation of input light coming from one or two light source assemblies to modulate the light in accordance with the image to be projected, the light source assembly being configured to generate light of one or more predetermined wavelength range; and
operating said one or more SLM unit to modulate input light in accordance with the image to be projected; and
selectively directing the input light propagating towards the SLM system or light modulated by the SLM system to propagate along at least one of first and second light propagation channels associated with first and second projection planes, respectively to thereby project the image onto at least one of the first and second planes. - View Dependent Claims (47, 48, 49, 50, 53, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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51. (canceled)
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- 86. A method for use in combining at least two light beams of different wavelengths into a combined light beam, the method comprising passing said at least two light beams via a wavelength combining element in the form of a diffractive grating with an increased depth pattern.
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88. A miniature projection system comprising:
- a light source system including at least two light source assemblies generating at least two light beams, respectively, of different wavelength ranges;
a planar optical element operable as a light guide for light incident thereon with an angle corresponding to a total internal reflection condition to thereby maintain substantially all the energy of the incident light within the waveguide;
a first light director assembly accommodated in optical paths of the at least two generated light beams to direct them onto said planar optical element with said predetermined angle of incidence;
the planar optical element carrying on its surfaces a phase modulation arrangement including at least two phase modulation elements in optical paths of said at least two light beams, respectively, propagating along the waveguide, and a spectral phase adjusting element accommodated in an optical path of the phase modulated light propagating along the light guide, the phase modulation arrangement and the spectral phase adjusting element acting together to provide beam shaping and wavelength combining to enable combining of said at least two light beams of different wavelengths into a combined light beam and direct the combined light beam towards a spatial light modulator (SLM) unit.
- a light source system including at least two light source assemblies generating at least two light beams, respectively, of different wavelength ranges;
Specification