Variable Optical Arrays and Variable Manufacturing Methods
First Claim
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1. An optical system comprising:
- a first array of independent axial optical elements having a first longitudinal axis;
a second array of independent axial optical elements having a second longitudinal axis in electromagnetic communication with said first array of independent axial optical elements and relatively disposed such that said first and said second longitudinal axes are skew and such that multiple focal points are created for incoming parallel light.
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Abstract
The invention divides the lens focusing process into two or more surfaces that incorporate multiple curved axial optic elements on each surface. The axial optics may be manufactured by molding, machining, or by suspended film. If suspended film is used, then both sides of an optic may have a suspended film that is transparent. Alternatively, one side of the suspended film optic may use a reflective film.
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Citations
19 Claims
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1. An optical system comprising:
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a first array of independent axial optical elements having a first longitudinal axis;
a second array of independent axial optical elements having a second longitudinal axis in electromagnetic communication with said first array of independent axial optical elements and relatively disposed such that said first and said second longitudinal axes are skew and such that multiple focal points are created for incoming parallel light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An optical system comprising:
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a screen comprising a first array of independent axial optical elements having a first longitudinal axis, and a second array of independent axial optical elements having a second longitudinal axis joined to said first array such that said first and said second longitudinal axes are skew;
wherein said screen has a vertical fall-off intensity of less than 2% of peak energy per degree within the design viewer volume. - View Dependent Claims (10, 11, 12, 13)
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14. An optical system comprising:
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a screen comprising a first array of independent axial optical elements having a first longitudinal axis, and a second array of independent axial optical elements having a second longitudinal axis joined to said first array such that said first and said second longitudinal axes are skew;
wherein at the designed vertical angular cut-off point of said screen, the intensity of light reflected from said screen falls off at the rate of between 10% and 50% per degree. - View Dependent Claims (15, 16, 17, 18)
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19-22. -22. (canceled)
Specification