Lichtleiterbasiertes Optisches System für einen Laserlinienerzeuger

Details

Veröffentlichungs-Nr.

EP3001237

Aktenzeichen

EP15184919

Anmeldetag

11. September 2015

Veröffentlichung

16. August 2017

Erteilung

16. August 2017

Rechtsraum

EP

IPC

G02B23/02F21V8/00H01S5/40G02B27/09

Abstract

A laser line generator system (100A) that utilizes a light guide element (120) to convert high energy coherent light generated by a high fill-factor laser diode bar (101) into homogenous light (HL), and utilizes one or more slow-axis relay lenses (130) to image the homogenous light such that it forms a homogenous line illumination pattern on an illumination plane (107). The light guide utilizes parallel or down-tapered side walls to mix received coherent light in the slow-axis direction (X(SA)) by way of total internal reflection. A Keplerian telescope (130A) including two cylinder lenses (130A-1,130A-2) is optionally used in place of the slow-axis relay lens (130). Optional fast-axis lenses (115A,115B) are used to assist in focusing the homogenous light at the illumination plane. The laser light generator forms, e.g., a single-pass imaging system (200) for a scanning/printing apparatus (400) in which the homogenous line illumination pattern (LIP) is directed onto a linearly arranged series of spatial light modulators (220), such as Digital Micromirror Devices (DMDs).

Anmelder

Firma

Palo Alto Research Center, Incorporated

Land

🇺🇸 USA

Fachgebiete