Abstract An optical imaging system for image exposing a static image on a photosensitive plate comprising scanning means for progressively scanning the static object at a first speed with a light source; means for moving a first mirror in parallel in the same direction as the scanning means at a second speed, the plane containing the first mirror being inclined with respect to the plane containing the static image; means for moving a second mirror in parallel in the same direction as the first mirror at a third speed, the second mirror facing the first mirror, the plane containing the second mirror being inclined with respect to the plane containing the static image so that the optical length along the path defined by the scanning means, first mirror and second mirror is substantially constant at all points during the movement of the scanning means, first mirror and second mirror; means for optically focusing the image reflected from the second mirror onto the photosensitive plate; means for moving the photosensitive plate at a speed relative to the scanning means whereby the imaging system can be compactly arranged because the plane containing the second mirror is inclinded to the plane containing the static image.
An optical imaging system for image exposing a static image on a photosensitive plate comprising scanning means for progressively scanning a static object at a first speed with a light source; means for moving a first mirror in parallel in the same direction as the scanning means at a second speed, the plane containing the first mirror being inclined with respect to the plane containing the static image; means for moving a second mirror in parallel in the same direction as said first mirror at a third speed, said second mirror facing said first mirror, the plane containing said second mirror being upwardly directed with respect to the plane containing said static image so that the optical length along the path defined by the scanning means, first mirror and second mirror is substantially constant at all points during the movement of said scanning means, first mirror and second mirror; means for optically focusing the image reflected from said second mirror onto said photosensitive plate; means for moving said photosensitive plate at a speed relative to said scanning means; whereby said imaging system can be compactly arranged because said plane containing said second mirror is upwardly directed with respect to said plane containing said static image, the ratios of the speeds of said scanning means and said first and second mirrors being S0 : S1 : S2 1 - tan theta 1 tan ( theta 1 - theta 2):
Claim 2
Dependent Claim
238 words
An optical imaging system for image exposing a static image on a photosensitive plate comprising scanning means for progressively scanning a static object at a first speed with a light source; means for moving a first mirror in parallel in the same direction as the scanning means at a second speed, the plane containing the first mirror being inclined with respect to the plane containing the static image; means for moving a second mirror in parallel in the same direction as said first mirror at a third speed, said second mirror facing said first mirror, the plane containing said second mirror being upwardly directed with respect to the plane containing said static image so that the optical length along the path defined by the scanning means, first mirror and second mirror is substantially constant at all points during the movement of said scanning means, first mirror and second mirror; means for optically focusing the image reflected from said second mirror onto said photosensitive plate; means for moving said photosensitive plate at a speed relative to said scanning means; whereby said imaging system can be compactly arranged because said plane containing said second mirror is upwardly directed with respect to said plane containing said static image, the ratios of the speeds of said scanning means and said first and second mirrors being S0 : S1 : S2 1 - tan theta 1 tan ( theta 1 - theta 2):