Exposure device

Claim 2

An incident light exposure device comprising, in combination, at least one light source; reflector means in light reflection relation with said light source; said reflector means including a plurality of elongated reflector surfaces having their longitudinal axes extending parallel to each other, said reflector surfaces being provided in a channellike arrangement; said channellike arrangement having, on one side, an elongated exposure opening adapted to have light rays from said light source directed therethrough, and having, on an opposite side, an image ray opening through which light rays, reflected through said exposure opening, are directed; means mounting said light source offset laterally to one side of said exposure opening; a reflector arranged above said light source and having a reflecting surface extending into the path of light rays from said light source directed through said exposure opening so that said light source is screened from said exposure opening; said reflector surfaces being so positioned, relative to said light source and said exposure opening, that light rays from said light source are redirected, by means of said reflector surfaces, through said exposure opening.

Claim 3

A device, as claimed in claim 1, in which first, second and third reflector surfaces form at least part of the walls of a channel-shaped housing; means connecting said first and third reflector surfaces directly to each other; and wall elements connecting said first reflector surface to said second reflector surface and connecting said second reflector surface to said third reflector surface; said exposure and image ray openings being formed in said wall elements.

Claim 4

A device, as claimed in claim 2, including a transparent protective screen at said exposure opening; a fan; and an air guide duct connecting said fan to said channel-shaped housing, whereby a direct air-cooling stream is provided for said reflectors, said light source and said protective screen.

Claim 5

A device, as claimed in claim 2, in which said light source is mounted relatively close to the plane of said exposure opening; said reflector arranged above said light source being a parabolic reflector having its axis inclined at an acute angle to the plane of said exposure opening and extending toward the median perpendicular to the plane of said exposure opening; said reflecting surfaces including a redirecting reflector intersecting the axis of said parabolic reflector and facing said exposure opening to direct light rays from said parabolic reflector through said exposure opening.

Claim 6

A device, as claimed in claim 2, in which said light source comprises two relatively elongated quartz-iodine lamps arranged on a common axis extending parallel to the longitudinal axes of said reflector surfaces; said quartz-iodine lamps being positioned along said common axis at a mutual spacing wherein the adjacent ends of said lamp are spaced apart a distance substantially equal to from one quarter to one half the length of one lamp.

Claim 7

A device, as claimed in claim 4, in which said redirecting reflector includes a substantially flat reflector surface extending parallel to said exposure opening; said light source being relatively elongated; said redirecting reflector including reflector surfaces inclined relative to the plane of said exposure opening and having their longitudinal axes extending parallel to the longitudinal axis of said flat reflector surface.

Claim 8

A device, as claimed in claim 6, in which said redirecting reflector terminates laterally at said projection of said exposure aperture in an upstanding rim adjacent said image ray opening and positioned to screen said image ray opening from direct illumination from said light source.

Claim 9

An incident light exposure device comprising, in combination, at least one light source; said reflector means operatively associated with said light source; said reflector means including a plurality of relatively elongated reflector surfaces having their longitudinal axes extending parallel to each other, said reflector surfaces being provided in a channellike arrangement; said channellike arrangement having, on one side, a relatively elongated exposure opening adapted to have light rays from said light source directed therethrough, and having, on an opposite side, an image ray opening through which light rays, reflected through said exposure opening, are directed; means mounting said light source laterally to one side of the exposure opening; a reflector arranged above said light source and having a reflecting surface extending into the path of light rays from said light source directed through said exposure opening so that said light source is screened from said exposure opening; said reflector surfaces being positioned, relative to said light source and said exposure opening, that light rays from said light source are redirected, by means of said reflector surfaces, through said exposure opening; said reflector surfaces being divided into three reflector surfaces which form at least part of the walls of a channel-shaped housing; said three reflector surfaces including a reflector at that side of the projection of the exposure aperture opposite to said light source, and reflecting light from said light source incident thereon directly through said eXposure opening.

Claim 10

An incident light exposure device comprising, in combination, at least one light source; said reflector means operatively associated with said light source; said reflector means including a plurality of relatively elongated reflector surfaces having their longitudinal axes extending parallel to each other, said reflector surfaces being provided in a channellike arrangement; said channellike arrangement having, on one side, a relatively elongated exposure opening adapted to have light rays from said light source directed therethrough, and having, on an opposite side, an image ray opening through which light rays, reflected through said exposure opening, are directed; means mounting said light source laterally to one side of the exposure opening; a reflector arranged above said light source and having a reflecting surface extending into the path of light rays from said light source directed through said exposure opening so that said light source is screened from said exposure opening; said reflector surfaces being positioned, relative to said light source and said exposure opening, that light rays from said light source are redirected, by means of said reflector surfaces, through said exposure opening; said reflector surfaces being divided into three reflector surfaces which form at least part of the walls of a channel-shaped housing; said three reflector surfaces including a reflector at that side of the projection of the exposure aperture opposite to said light source, and reflecting light from said light source incident thereon directly through said eXposure opening.

Claim 11

A device, as claimed in claim 8, in which said last named reflector is constructed as a stepped reflector having angled, mutually displaced, strip form, light reflector surfaces which are disposed in an arrangement for direct reflection of light rays, incident thereon from said light source, through said exposure opening, but which are stepped relative to each other.

Claim 12

An incident light exposure device comprising, in combination, at least one light source; reflector means operatively associated with said light source; said reflector means including a plurality of relatively elongated reflector surfaces having their longitudinal axes extending parallel to each other, said reflector surfaces being provided in a channellike arrangement; said channellike arrangement having, on one side, a relatively elongated exposure opening adapted to have light rays from said light source directed therethrough, and having, on an opposite side, an image ray opening through which light rays, reflected through said exposure opening, are directed; means mounting said light source laterally to one side of the exposure opening; a reflector arranged above said light source and having a reflecting surface extending into the path of light rays from said light source directed through said exposure opening so that said light source is screened from said exposure opening; said reflector surfaces being positioned, relative to said light source and said exposure opening, that light rays from said light source are redirected, by means of said reflector surfaces, through said exposure opening; said reflector surfaces being divided into three reflector surfaces which form at least part of a channel-shaped housing; guide means on said housing operatively associated with a rail system in a copy apparatus in which said channel-shaped housing is disposed, said guide means being movable along said rail system for adjusting the relative position of said channellike arrangement, as a unit, in the copy apparatus.

Claim 13

An incident light exposure device comprising, in combination, at least one light source; reflector means operatively associated with said light source; said reflector means including a plurality of relatively elongated reflector surfaces having their longitudinal axes extending parallel to each other, said reflector surfaces being provided in a channellike arrangement; said channellike arrangement having, on one side, a relatively elongated exposure opening adapted to have light rays from said light source directed therethrough, and having, on an opposite side, an image ray opening through which light rays, reflected through said exposure opening, are directed; means mounting said light source laterally to one side of the exposure opening; a reflector arranged above said light source and having a reflecting surface extending into the path of light rays from said light source directed through said exposure opening so that said light source is screened from said exposure opening; said reflector surfaces being positioned, relative to said light source and said exposure opening, that light rays from said light source are redirected, by means of said reflector surfaces, through said exposure opening; said reflector surfaces being divided into three reflector surfaces which form at least part of a channel-shaped housing; guide means on said housing operatively associated with a rail system in a copy apparatus in which said channel-shaped housing is disposed, said guide means being movable along said rail system for adjusting the relative position of said channellike arrangement, as a unit, in the copy apparatus.

Claim 14

An incident light exposure device, having at least one light source and associated reflective means arranged between an exposure aperture and an image ray aperture opposite the exposure aperture, the light source being offset laterally relative to the projection of the exposure aperture perpendicular to the plane thereof; the improvement comprising, in combination, said reflector means including plural reflectors forming part of the wall portions of a relatively elongated channel-shaped housing having said apertures arranged therein; means mounting said light source near the plane of said exposure aperture inside a parabolic reflector of said housing, and whose axis forms an acute angle with the perpendicular to the plane of said exposure aperture; a deflecting reflector of said housing, arranged beneath said light source; and a third reflector of said housing arranged on the side of said exposure aperture opposite said light source, and forming a reflector for direct reflection of rays, coming from said light source, through said exposure aperture.

Claim 15

An incident light exposure device, having at least one light source and associated reflective means arranged between an exposure aperture and an image ray aperture opposite the exposure aperture, the light source being offset laterally relative to the projection of the exposure aperture perpendicular to the plane thereof; the improvement comprising, in combination, said reflector means including plural reflectors forming part of the wall portions of a relatively elongated channel-shaped housing having said apertures arranged therein; means mounting said light source near the plane of said exposure aperture inside a parabolic reflector of said housing, and whose axis forms an acute angle with the perpendicular to the plane of said exposure aperture; a deflecting reflector of said housing, arranged beneath said light source; and a third reflector of said housing arranged on the side of said exposure aperture opposite said light source, and forming a reflector for direct reflection of rays, coming from said light source, through said exposure aperture.