Browse Prior Art Database

LASER DIODE ASSEMBLY AND METHOD

IP.com Disclosure Number: IPCOM000027627D
Original Publication Date: 1998-Apr-30
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 60K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a laser diode assembly and method embodying an alignment configuration that reduces alignment time and parts required for diode manufacture of a Raster Output Scanner (ROS). The diode assembly is comprised of diode base, such as a steel bracket to support the laser diode, the laser diode for discharging a photoreceptor to create a latent image, spring spacers which are preferably made of a porous and pliable material that can compress when the diode base is attached to a collimator, a collimator housing which supports the collimator lens, and a main base made of, for example, an injection molded plastic frame which supports all the optical componentry. The method comprises attaching the diode assembly to the collimator housing by, for example, screws with spring spacers between a collimator housing and the diode assembly. Subsequent to X and Y coordinate adjustments of the diode, the spacer screws are used to simultaneously secure the diode assembly and to adjust the laser diode in the Z direction. A final step injects the spring spacers with, for example, a two part epoxy resin to secure the laser diode assembly to the collimator housing. The method possess several advantages including savings associated with reductions in: Z alignment time, for example, about 50 percent compared to conventional methods; total assembly components; and manufacturing costs.

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XEROX DISCLOSURE JOURNAL

LASER DIODE ASSEMBLY AND METHOD

Proposed Classification Eileen S. Clarke U. S. C1. 399/151

Int. C1. G03g 15/22

Disclosed is a laser diode assembly and method embodying an alignment configuration that reduces alignment time and parts required for diode manufacture of a Raster Output Scanner (ROS). The diode assembly is comprised of diode base, such as a steel bracket to support the laser diode, the laser diode for discharging a photoreceptor to create a latent image, spring spacers which are preferably made of a porous and pliable material that can compress when the diode base is attached to a collimator, a collimator housing which supports the collimator lens, and a main base made of, for example, an injection molded plastic frame which supports all the optical componentry. The method comprises attaching the diode assembly to the collimator housing by, for example, screws with spring spacers between a collimator housing and the diode assembly. Subsequent to X and Y coordinate adjustments of the diode, the spacer screws are used to simultaneously secure the diode assembly and to adjust the laser diode in the Z direction. A final step injects the spring spacers with, for example, a two part epoxy resin to secure the laser diode assembly to the collimator housing. The method possess several advantages including savings associated with reductions in: Z alignment time, for example, about 50 percent compared to conventional methods; total assem...