Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
In an optical copying machine wherein an original is imaged onto a photosensitive carrier, a combination comprising an imaging system including a source of modulated light and a mask having an elongated aperture through which light issuing from said source passes to impinge upon the original whereby such light exhibits the tendency to produce lighter and darker transverse streaks between the marginal portions of the photosensitive carrier; and means for effecting a relative movement between the original and said system so that light passing through said aperture impinges upon successive strip-shaped portions of the original, the width of said strip-shaped portions being a whole multiple of the quotient of the speed of said relative movement and the modulation frequency of light issuing from said source to counteract said tendency of modulated light to produce said streaks.
Claim 2
Dependent Claim
136 words
In an optical copying machine wherein an original is imaged onto a photosensitive carrier, a combination comprising an imaging system including a source of modulated light and a mask having an elongated aperture through which light issuing from said source passes to impinge upon the original whereby such light exhibits the tendency to produce lighter and darker transverse streaks between the marginal portions of the photosensitive carrier; and means for effecting a relative movement between the original and said system so that light passing through said aperture impinges upon successive strip-shaped portions of the original, the width of said strip-shaped portions being a whole multiple of the quotient of the speed of said relative movement and the modulation frequency of light issuing from said source to counteract said tendency of modulated light to produce said streaks.
Claim 3
Dependent Claim
50 words
A combination as defined in claim 1, wherein the intensity of modulated light which issues from said source varies in directions from the center toward both ends of said elongated aperture and the width of said aperture varies in the same directions to compensate for such variations of light intensity.
Claim 4
Dependent Claim
32 words
A combination as defined in claim 2, wherein the width of said aperture increases stepwise in each of said directions so that said aperture includes a plurality of sections of different width.
Claim 5
Dependent Claim
35 words
A combination as defined in claim 3, wherein the width of each section of said aperture is a whole multiple of the quotient of said speed of relative movement and the modulation frequency of light.
Claim 6
Dependent Claim
16 words
A combination as defined in claim 1, wherein said source comprises at least one incandescent lamp.
Claim 7
Dependent Claim
16 words
A combination as defined in claim 1, wherein said source includes at least one fluorescent lamp.
Claim 8
Dependent Claim
23 words
A combination as defined in claim 1, wherein said source includes at least one lamp in circuit with a source of alternating current.
Claim 9
Dependent Claim
25 words
A combination as defined in claim 1, wherein said means for effecting said relative movement includes a mobile carriage for said source and said mask.
Claim 10
Dependent Claim
52 words
A combination as defined in claim 8, further comprising a stationary light-transmitting support for the original and a lens, said carriage being reciprocable along said support and said imaging system further comprising a mirror mounted on said carriage and arranged to reflect against said lens light which has passed through said aperture.
Claim 11
Dependent Claim
23 words
A combination as defined in claim 1, wherein the width of said strip-shaped portions is n times said quotient and n exceeds one.