Optical system for producing uniform line illumination

Details Optical system for producing uniform line illumination Optical system for producing uniform line illumination

1996-07-22

1998-06-16

Phan, James

Optical: systems and elements

Diffraction

Using fourier transform spatial filtering

359562, 359558, 362293, G02B 2746, F21V 900

Patent

active

057680175

ABSTRACT:
A system for creating a bright and uniform line of illumination. The "hot spot" of an arc lamp is imaged onto a narrow, circular pinhole aperture. Light passing through the pinhole aperture is collimated and passed through a second aperture (the apodizing aperture), before being focused to a line of illumination by a cylindrical lens. The spatial profile of the apodizing aperture is tailored to remove non-uniformities in the illumination source thereby allowing a highly uniform line of illumination to be created. Alternatively, the spatial profile of the apodizing aperture can be tailored to produce a line of illumination having a desired non-uniform intensity profile.

REFERENCES:
patent: 3427104 (1969-02-01), Bukken et al.
patent: 3592547 (1971-07-01), Noble
patent: 3719127 (1973-03-01), Mueller
patent: 3729252 (1973-04-01), Nelson
patent: 4013338 (1977-03-01), Sato et al.
patent: 4329588 (1982-05-01), Barrett et al.
patent: 4724467 (1988-02-01), Yip et al.
patent: 4735487 (1988-04-01), Thorwirth et al.
patent: 4811057 (1989-03-01), Murakami et al.
patent: 4832446 (1989-05-01), Miyagawa
patent: 4947413 (1990-08-01), Jewell et al.
patent: 5155372 (1992-10-01), Bowen et al.
patent: 5288991 (1994-02-01), King et al.
J. M. Geary, "Channel Integrator for Laser Beam Uniformity on Target" Optical Engineering, vol. 27, No. 11, pp. 972-977, Nov. 1988.
F. M. Dickey, "Multifaceted Laser Beam Integrators: general formulation and Design Concepts" Optical Engineering, vol. 27, No. 11, pp. 999-1007, Nov. 1988.

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