Back to results
US 5,969,843 AGranted
Light source device and light beam scanning optical apparatus
AssigneeMinolta Co., Ltd.
InventorsToshio Naiki, Akiyoshi Hamada, Yoshihiro Inagaki
Life of this patent
Estimating the term…
Abstract
A light beam scanning optical apparatus which writes two lines at one scan on a photosensitive member with light beams emitted from two light sources. A light source unit of the apparatus has a first movable retainer block which retains a first laser diode and a second movable retainer block which retains a second laser diode. The second movable retainer block becomes adjustable two-dimensionally on a base block by loosening screws which fit the second movable retainer block to the base block.
Claims17
A light source device to be placed on a horizontal reference surface of a box-shaped housing opened upward, the device comprising:
- a light source which emits a light beam in a direction approximately perpendicular to the horizontal reference surface;
- and
- a movable retaining member, accessible from above the housing, which retains the light source and is positionally adjustable in a plane perpendicular to the beam emitting direction.
A light source device to be placed on a horizontal reference surface of a box-shaped housing opened upward, the device comprising:
- a first light source which emits a first light beam in a direction approximately parallel to the horizontal reference surface;
- a second light source which emits a second light beam in a direction approximately perpendicular to the horizontal reference surface;
- a beam combining element which allows the first light beam to pass therethrough and reflects the second light beam in a direction identical to the direction in which the first light beam travels;
- a first movable retaining member which retains the first light source;
- a second movable retaining member which retains the second light source;
- a fixing and retaining member which is fixed on the horizontal reference surface and adjustably retains the first and second movable retaining members;
- and
- an adjusting means, accessible from above the housing, which makes the second movable retaining member positionally adjustable, with respect to the fixing and retaining member, in a plane perpendicular to the beam emitting direction of the second light source.
5 more elements
A light beam scanning optical apparatus comprising:
- a box-shaped housing opened upward;
- a deflector which scans at least one light beam and deflects the at least one light beam in a deflecting plane approximately parallel to a floor surface of the housing;
- a light source which emits a light beam in a plane approximately perpendicular to the deflecting plane of the deflector;
- an optical element which reflects a light beam emitted from the light source so as to guide the light beam to the deflector;
- and
- a movable retaining member, accessible from above the housing, which retains the light source and is positionally adjustable in a plane perpendicular to the beam emitting direction of the light source.
3 more elements
A light beam scanning optical apparatus comprising:
- a box-shaped housing opened upward;
- a deflector which scans at least one light beam and deflects the at least one light beam in a deflecting plane approximately parallel to a floor surface of the housing;
- a first light source which emits a first light beam in a plane approximately parallel to the deflecting plane of the deflector;
- a second light source which emits a second light beam in a plane approximately perpendicular to the deflecting plane of the deflector;
- a beam combining element which allows the first light beam to pass therethrough so as to guide the first light beam to the deflector and reflects the second light beam in a direction identical to the direction in which the first light beam travels so as to guide the second light beam to the deflector;
- a first movable retaining member which retains the first light source;
- a second movable retaining member which retains the second light source;
- a fixing and retaining member which is fixed on the floor surface of the housing and retains the first and second movable retaining members as adjustable in position;
- and
- an adjusting means, accessible from above the housing, which makes the second movable retaining member positionally adjustable, with respect to the fixing and retaining member, in a plane perpendicular to the beam emitting direction of the second light source.
7 more elements
A light beam scanning optical apparatus comprising:
- a box-shaped housing opened upward;
- a deflector which scans at least one light beam and deflects the at least one light beam in a deflecting plane approximately parallel to a floor surface of the housing;
- a first light source which emits a first light beam in a plane approximately parallel to the deflecting plane of the deflector;
- a second light source which emits a second light beam in a plane approximately perpendicular to the deflecting plane of the deflector;
- a beam combining element which allows the first light beam to pass therethrough so as to guide the first light beam to the deflector and reflects the second light beam in a direction identical to the direction in which the first light beam travels so as to guide the second light beam to the deflector;
- a first movable retaining member which retains the first light source;
- a second movable retaining member which retains the second light source;
- a fixing and retaining member which is fixed on the floor surface of the housing and retains the first and second movable retaining members as adjustable in position;
- a first adjusting means, accessible from above the housing, which makes the second movable retaining member positionally adjustable, with respect to the fixing and retaining member, in a plane perpendicular to the beam emitting direction of the second light source;
- and
- a second adjusting means, accessible from above the housing, which makes the second movable retaining member positionally adjustable in a direction substantially perpendicular to the horizontal reference surface of the housing.
8 more elements
Dependencies are inferred from the claim text.