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US 2006/0138305 A1Published application
Optical writing device and method of manufacturing the same
AssigneeSeiko Epson Corporation
InventorsKiyoshi Tsujino, Yujiro Nomura, Ken Ikuma
Life of this patent
Estimating the term…
Abstract
A plurality of photo emitters are arrayed on a transparent substrate in a first direction to form at least one photo emitter array. An electrode is provided on the substrate and electrically connected to the photo emitters in common. A dimension of the electrode in a second direction perpendicular to the first direction is smaller than a dimension of the substrate in the second direction.
Claims43
An optical writing device, comprising:
- a transparent substrate;
- a plurality of photo emitters, arrayed on the substrate in a first direction to form at least one photo emitter array;
- and
- an electrode, provided on the substrate and electrically connected to the photo emitters in common,
- wherein a dimension of the electrode in a second direction perpendicular to the first direction is smaller than a dimension of the substrate in the second direction.
2 more elements
A method of manufacturing an optical writing device, comprising:
- providing a transparent substrate on which a plurality of photo emitters are arrayed in a first direction to form at least one photo emitter array and an electrode is formed so as to be electrically connected to the photo emitters in common;
- providing a plurality of lenses adapted to image light emitted from the photo emitters on a target surface, and arrayed in the first direction to form at least one lens array;
- fixing the substrate and the lens array on a housing;
- observing the lens array through the substrate;
- detecting misalignment between a center line of the at least one photo emitter array and a center line of the at least one lens array relative to a second direction perpendicular to the first direction, based on at least one position of the observed electrode;
- and
- aligning the center line of the at least one photo emitter array with the center line of the at least one lens array, based on the detected misalignment.
4 more elements
An optical writing device, comprising:
- a transparent substrate;
- a plurality of photo emitters, arrayed on the substrate in a first direction to form at least one photo emitter array;
- and
- a sealing member, provided on the substrate so as to cover the photo emitters,
- wherein a dimension of the sealing member in a second direction perpendicular to the first direction is smaller than a dimension of the substrate in the second direction.
2 more elements
A method of manufacturing an optical writing device, comprising:
- providing a transparent substrate on which a plurality of photo emitters are arrayed in a first direction to form at least one photo emitter array and a sealing member is provided so as to cover the photo emitters;
- providing a plurality of lenses adapted to image light emitted from the photo emitters on a target surface, and arrayed in the first direction to form at least one lens array;
- fixing the substrate and the lens array on a housing;
- observing the lens array through the substrate;
- detecting misalignment between a center line of the at least one photo emitter array and a center line of the at least one lens array relative to a second direction perpendicular to the first direction, based on at least one position of the observed sealing member;
- and
- aligning the center line of the at least one photo emitter array with the center line of the at least one lens array, based on the detected misalignment.
4 more elements
An optical writing device, comprising:
- a transparent substrate;
- a plurality of photo emitters, arrayed on the substrate in a first direction to form at least one photo emitter array;
- an electrode, provided on the substrate and electrically connected to the photo emitters in common, the electrode having a first reflectivity;
- and
- a holder, supporting the substrate and having a second reflectivity which is different from the first reflectivity.
2 more elements
A method of manufacturing an optical writing device, comprising:
- providing a transparent substrate on which a plurality of photo emitters are arrayed in a first direction to form at least one photo emitter array and an electrode having a first reflectivity is formed so as to be electrically connected to the photo emitters in common;
- fixing the substrate on a holder having a second reflectivity which is different from the first reflectivity;
- providing a plurality of lenses adapted to image light emitted from the photo emitters on a target surface, and arrayed in the first direction to form at least one lens array;
- observing the electrode through the lens array;
- detecting misalignment between a center line of the at least one photo emitter array and a center line of the at least one lens array relative to a second direction perpendicular to the first direction, based on at least one position of the observed electrode;
- and
- aligning the center line of the at least one photo emitter array with the center line of the at least one lens array, based on the detected misalignment.
4 more elements
An optical writing device, comprising:
- a transparent substrate;
- a plurality of photo emitters, arrayed on the substrate in a first direction to form at least one photo emitter array;
- and
- a plurality of lenses, adapted to image light emitted from the photo emitters on a target surface, and arrayed in the first direction to form at least one lens array, wherein:
- the photo emitters include first photo emitters each having a first light emitting area and second photo emitters each having a second light emitting area which is different from the first light emitting area;
- and
- a position of the second photo emitter depends on a relative position in the first direction with respect to the rod lens array.
4 more elements
An image forming apparatus, comprising:
- a plurality of optical writing devices, each of which comprises:
- a plurality of photo emitters, arrayed in a first direction to form at least one photo emitter array;
- and
- a plurality of lenses, adapted to image light emitted from the photo emitters on a target surface, and arrayed in the first direction to form at least one lens array;
- and
- an adjuster, operable to adjust a position of each of the optical writing devices in the first direction.
3 more elements
A method of manufacturing a color image forming apparatus incorporating a plurality of optical writing devices each of which comprises:
- a plurality of photo emitters, arrayed in a first direction to form at least one photo emitter array;
- and a plurality of lenses, arrayed in the first direction to form at least one lens array, the method comprising:
- emitting light beams from the photo emitters;
- causing the emitted light beams to pass through the at least one lens array to image light spots on a target surface;
- observing the light spots on the target surface to obtain data indicative of a shape of each of the light spots;
- determining first one of the light spots formed by first one of the optical writing devices as a reference spot, based on the obtained data;
- determining second one of the light spots formed by second one of the optical writing devices which has a shape similar to the reference spot, based on the obtained data;
- and
- adjusting a position of the second one of the optical writing devices in the first direction such that the second one of the light spots is aligned with the first one of the light spots relative to the first direction.
6 more elements
Dependencies are inferred from the claim text.