Random microlens array for optical beam shaping and...

Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements

Reexamination Certificate

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Reexamination Certificate

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06859326

ABSTRACT:
Microlens arrays are defined with microlens elements that differ from each other in accordance with a probability distribution for shaping an optical beam having a prescribed intensity profile within a desired far-field scatter pattern. The differences include random variations in a sag profile corresponding to a surface shape of the microlenses, a boundary profile corresponding to a boundary of the microlenses, and a spatial distribution corresponding to the relative position of the microlenses within the array. The sag profile variations can be used to homogenize an intensity profile of the optical beam. The boundary profile variations within an irregular spatial distribution can be used to apply the prescribed intensity profile of the optical beam within the desired scatter pattern.

REFERENCES:
patent: 5042911 (1991-08-01), Levin
patent: 5534386 (1996-07-01), Peterson et al.
patent: 5589982 (1996-12-01), Faklis et al.
patent: 6033094 (2000-03-01), Sohn
patent: 6212011 (2001-04-01), Lissotschenko et al.
patent: 6278550 (2001-08-01), Kathman et al.
patent: 6373633 (2002-04-01), Brown
“Uniform illumination of large targets using a lens array”; X. Deng, X. Liang, Z. Chen, W, Yu, and R. Ma; Applied Optics, vol. 25 No. 3, Feb. 1, 1986; pp 377-381.
“Design and performance of a refractive optical system that converts a Gaussian to a flattop beam”; J.A. Hoffnagle and C.M. Jefferson; Applied Optics, vol. 39 No. 30, Oct. 20, 2000; pp 5488-5499.
“Dual-wavelength operation diffractive phase elements for pattern formation”; I.M. Barton, P. Blair, and M.R. Taghizadeh; OpticsExpress, vol. 1 No. 2, Jul. 21, 1997, pp 54-59.
“Integrated diffractive and refractive elements for spectrum shaping”; S, Noach, A, Lewis, Y. Arielli, and N. Eisengerg; Applied Optics, vol. 35 No. 19, Jul. 1, 1996, pp 3635-3639.
“A method of forming optical diffusers of simple known statistical properties”; P. F. Gray; Optica Acta, vol. 25 No. 8, 1978, pp 765-775. Apr.
“Reshaping collimated laser beams with Gaussian profile to uniform profiles”; CY Han, Y., Ishii, and K. Murata; Applied Optics, vol. 22 No. 22, Nov. 15, 1983, pp 3644-3647.

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