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US 6,552,777 B2Granted
Image exposing method and image exposing apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorHiroshi Sunagawa
Life of this patent
Estimating the term…
Abstract
The image exposing method and apparatus expose a light-sensitive material with the light emitted from a light source matching the spectral sensitivity of the material and modulated with a two-dimensional spatial modulator. The light-sensitive material and the modulator are relatively scanned in the direction of one pixel column in the modulator, as well as, in synchronism with this scanning, the image created by the modulator is also scanned in the scanning direction so as to perform multiple exposures of the material and exposure with part of the pixels in at least one of the pixel columns is rested always irrespective of the image to be recorded such that a maximum quantity of exposure with each of the pixel columns in the scanning direction in equal in each pixel column.
Claims30
An image exposing method, comprising the steps of:
- emitting light from a light source matching the spectral sensitivity of a light-sensitive material;
- modulating the thus emitted light with a two-dimensional spatial modulator;
- and
- exposing the light-sensitive material with the thus modulated light wherein
- said light-sensitive material and said two-dimensional spatial modulator are relatively scanned in a direction of one pixel column in said two-dimensional spatial modulator, as well as, in synchronism with this scanning, an image created by said two-dimensional spatial modulator is also scanned in said direction so as to perform multiple exposures of said light-sensitive material and wherein
- exposure with part of pixels in at least one of pixel columns is rested always irrespective of the image to be recorded such that a maximum quantity of exposure with each of the pixel columns in said direction is equal in each pixel column.
3 more elements
An image exposing apparatus, comprising:
- a light source for emitting light matching the spectral sensitivity of a light-sensitive material;
- a two-dimensional spatial modulation for modulating the light emitted from the light source in each of two-dimensional pixels;
- an exposing unit for exposing the light-sensitive material with the light modulated by the two-dimensional spatial modulator;
- wherein said exposing unit comprises:
- a first scanning unit for relatively scanning said light-sensitive material and said two-dimensional spatial modulator in a direction of one pixel column in said two-dimensional spatial modulator;
- a second scanning unit for also scanning an image created on the light-sensitive material by the light modulated in each of the two-dimensional pixels by said two-dimensional spatial modulator in said direction in synchronism with relative scanning so as to perform multiple exposures of said light-sensitive material;
- and
- control unit for controlling the two-dimensional spatial modulator in such a way that exposure with part of pixels in at least one of pixel columns is rested always irrespective of the image to be recorded such that a maximum quantity of exposure with each of the pixel columns of the two-dimensional pixels of the two-dimensional spatial modulator in said direction is equal in each pixel column.
5 more elements
An image exposing method, comprising:
- emitting light from a light source matching the spectral sensitivity of a light-sensitive material;
- modulating the thus emitted light with a two-dimensional spatial modulator having a plurality of rows of pixels and a plurality of columns of pixels;
- and
- exposing the light-sensitive material with the thus modulated light wherein
- said light-sensitive material and said two-dimensional spatial modulator are relatively scanned in a direction of one pixel column in said two-dimensional spatial modulator, as well as, in synchronism with this scanning, an image created by said two-dimensional spatial modulator is also scanned in said direction so as to perform multiple exposures of said light-sensitive material and wherein
- exposure of pixels in at least one of the plurality of pixel columns is set to have a predetermined number of pixels normally turned off in said pixel column, irrespective of the image to be recorded, such that a maximum quantity of exposure with each of the pixel columns in said direction is equal in each pixel column.
3 more elements
An image exposing apparatus, comprising:
- a light source for emitting light matching the spectral sensitivity of a light-sensitive material;
- a two-dimensional spatial modulator for modulating the light emitted from the light source in each of two-dimension al pixels, said two-dimensional spatial modulator having a plurality of rows of pixels and a plurality of columns of pixels;
- an exposing unit for exposing the light-sensitive material with the light modulated by the two-dimensional spatial modulator;
- wherein said exposing unit comprises:
- a first scanning unit for relatively scanning said light-sensitive material and said two-dimensional spatial modulator in a direction of one pixel column in said two-dimensional spatial modulator;
- a second scanning unit for also scanning an image created on the light-sensitive material by the light modulated in each of the two-dimensional pixels by said two-dimensional spatial modulator in said direction in synchronism with relative scanning so as to perform multiple exposures of said light-sensitive material;
- and
- control unit for controlling the two-dimensional spatial modulator in sach a way that exposure of pixels in at least one of the plurality of pixel columns is set to have a predetermined number of pixels normally turned off in said pixel column, irrespective of the image to be recorded, such that a maximum quantity of exposure with each of the pixel columns of the two-dimensional pixels of the two-dimensional spatial pixel column.
5 more elements
An image exposing method, comprising:
- emitting light from a light source matching the spectral sensitivity of a light-sensitive material;
- modulating the thus emitted light with a two-dimensional spatial modulator having a plurality of rows of pixels and a plurality of columns of pixels;
- and
- exposing the light-sensitive material with the thus modulated light wherein
- said light-sensitive material and said two-dimensional spatial modulator are relatively scanned in a direction of one pixel column in said two-dimensional spatial modulator, as well as, in synchronism with this scanning, an image created by said two-dimensional spatial modulator is also scanned in said direction, and
- exposure of pixels in at least one of the plurality of pixel columns is set to have a predetermined number of pixels normally turned off in said pixel column, irrespective of the image to be recorded, such that a maximum quantity of exposure with each of the pixel columns in said direction is equal in each pixel column.
3 more elements
An image exposing apparatus, comprising:
- a light source for emitting light matching the spectral sensitivity of a light-sensitive material;
- a two-dimensional spatial modulator for modulating the light emitted from the light source in each of two-dimensional pixels, said two-dimensional spatial modulator having a plurality of rows of pixels and a plurality of columns of pixels;
- an exposing unit for exposing the light-sensitive material with the light modulated by the two-dimensional spatial modulator;
- wherein said exposing unit comprises:
- a first scanning unit for relatively scanning said light-sensitive material and said two-dimensional spatial modulator in a direction of one pixel column in said two-dimensional spatial modulator;
- a second scanning unit for also scanning an image created on the light-sensitive material by the light modulated in each of the two-dimensional pixels by said two-dimensional spatial modulator in said direction in synchronism with relative scanning;
- and
- control unit for controlling the two-dimensional spatial modulator in such a way that exposure of pixels in at least one of the plurality of pixel columns is set to have a predetermined number of pixels normally turned off in said pixel column, irrespective of the image to be recorded, such that a maximum quantity of exposure with each of the pixel columns of the two-dimensional pixels of the two-dimensional spatial modulator in said direction is equal to each pixel column.
5 more elements
Dependencies are inferred from the claim text.