One-dimensional illumination apparatus and imaging apparatus

Details One-dimensional illumination apparatus and imaging apparatus One-dimensional illumination apparatus and imaging apparatus

2005-04-19

2009-06-09

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Nonlinear device

C372S021000

Reexamination Certificate

active

07545837

ABSTRACT:
A one-dimensional transverse multiple mode laser is used for a one-dimensional illumination apparatus. A pumping light source, and a laser medium and a wavelength conversion device (nonlinear optical crystal or a nonlinear optical device) which are disposed in a resonator, are provided, and the nonlinear optical crystal or a nonlinear optical device is irradiated with a line beam obtained by exciting the laser medium in an elliptic transverse mode pattern. Then, a one-dimensional light modulation device is irradiated with the wavelength-converted line beam, and scanning with the beam modulated by the modulation device is conducted to produce a two-dimensional image. For example, in a green illumination optical system, in the case where the nonlinear optical device for obtaining visible rays through second harmonic generation from IR rays oscillated by a solid state laser medium has a periodical poling structure, stoichiometric composition periodical poling lithium tantalate having been subjected to vapor transport equilibration is used, whereby reliability is enhanced and a reduction in cost can be achieved through mass production.

REFERENCES:
patent: 5197072 (1993-03-01), Harada et al.
patent: 5247528 (1993-09-01), Shinozaki et al.
patent: 5521932 (1996-05-01), Marshall
patent: 5959765 (1999-09-01), Nakamura et al.
patent: 5978392 (1999-11-01), Adachi
patent: 7403549 (2008-07-01), Koyata et al.
patent: 2003/0035448 (2003-02-01), Yin
patent: 2005/0190805 (2005-09-01), Scripsick et al.
patent: 2001-185792 (2001-06-01), None

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