Optical shaping apparatus and optical shaping method
First Claim
1. An optical shaping apparatus configured to irradiate light according to cross-sectional shape data of a three-dimensional model on a surface of a light hardening resin to form a hardening layer, and hardening layers to shape said three-dimensional model, comprising:
- one-shot exposing means for turning on/off irradiation of light onto the surface of said light hardening resin for each predetermined unit area, and irradiating light collectively on a plurality of said unit areas for which irradiation of light is on;
scanning exposing means configured to irradiate an optical beam with a predetermined diameter, and scan said optical beam on the surface of said light hardening resin;
a polarizing beam splitter configured to synthesize light from the one-shot exposing means and the optical beam from the scanning exposing means; and
an objective lens to receive light from the one-shot exposing means and the optical beam from the polarizing beam splitter, the objective lens being configured to (a) image-form light from the one-shot exposing means on the surface of said light hardening resin and (b) condense the optical beam from the scanning exposing means, said objective lens receiving light from the one-shot exposing means before receiving the optical beam from the scanning exposing means,wherein,said one-shot exposing means includes a condenser lens, said condenser lens and said objective lens comprise a symmetric optical system,said one-shot exposing means irradiates said light in an area which is offset by a predetermined number of unit areas on an inner side of a profile line of said cross-sectional shape data with respect to said unit areas overlapped with the profile line of said cross-sectional shape data on the surface of said light hardening resin;
said scanning exposing means scans a center of said optical beam having a first diameter along a scanning line that is within the inner side of the profile line and offset by a predetermined distance from the profile line of said cross-sectional shape data; and
said scanning exposing means scans an optical beam, having a second diameter which is shorter than said first diameter, within the inner side of the profile line of said cross-sectional shape data.
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Accused Products
Abstract
An optical shaping apparatus includes: an exposing unit for turning on/off irradiation of light to a hardening resin surface for each predetermined unit area to irradiate light collectively on multiple the unit areas with irradiation of light being on; and a scanning unit for irradiating an optical beam with a predetermined diameter to scan the optical beam on the hardening resin surface; with the exposing unit irradiating the light in an area offset by a predetermined number of unit areas toward the inner side than the unit areas overlapped with the profile line of the cross-sectional-shaped data on the hardening resin surface; and with the scanning unit scanning an optical beam having a first diameter along a center line offset from the profile line of the cross-sectional-shaped data, and scanning an optical beam having a second diameter shorter than the first diameter along the inner side of the profile line.
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Citations
5 Claims
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1. An optical shaping apparatus configured to irradiate light according to cross-sectional shape data of a three-dimensional model on a surface of a light hardening resin to form a hardening layer, and hardening layers to shape said three-dimensional model, comprising:
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one-shot exposing means for turning on/off irradiation of light onto the surface of said light hardening resin for each predetermined unit area, and irradiating light collectively on a plurality of said unit areas for which irradiation of light is on; scanning exposing means configured to irradiate an optical beam with a predetermined diameter, and scan said optical beam on the surface of said light hardening resin; a polarizing beam splitter configured to synthesize light from the one-shot exposing means and the optical beam from the scanning exposing means; and an objective lens to receive light from the one-shot exposing means and the optical beam from the polarizing beam splitter, the objective lens being configured to (a) image-form light from the one-shot exposing means on the surface of said light hardening resin and (b) condense the optical beam from the scanning exposing means, said objective lens receiving light from the one-shot exposing means before receiving the optical beam from the scanning exposing means, wherein, said one-shot exposing means includes a condenser lens, said condenser lens and said objective lens comprise a symmetric optical system, said one-shot exposing means irradiates said light in an area which is offset by a predetermined number of unit areas on an inner side of a profile line of said cross-sectional shape data with respect to said unit areas overlapped with the profile line of said cross-sectional shape data on the surface of said light hardening resin; said scanning exposing means scans a center of said optical beam having a first diameter along a scanning line that is within the inner side of the profile line and offset by a predetermined distance from the profile line of said cross-sectional shape data; and said scanning exposing means scans an optical beam, having a second diameter which is shorter than said first diameter, within the inner side of the profile line of said cross-sectional shape data. - View Dependent Claims (2, 3)
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4. An optical shaping method for an optical shaping apparatus configured to irradiate light according to cross-sectional shape data of a three-dimensional model on a surface of a light hardening resin to form a hardening layer, and layering hardening layers to shape said three-dimensional model,
wherein, said optical shaping apparatus includes: -
one-shot exposing unit configured to turn on/off irradiation of light onto the surface of said light hardening resin for each predetermined unit area, and irradiate light collectively on a plurality of said unit areas for which irradiation of light is on; scanning exposing means configured to irradiate an optical beam with a predetermined diameter, and scan said optical beam on the surface of said light hardening resin; a polarizing beam splitter configured to synthesize the light from the one-shot exposing means and the optical beam from the scanning exposing means; and an objective lens to receive light from the one-shot exposing unit and the optical beam from the polarizing beam splitter, the objective lens being configured to (a) image-form light from the one-shot exposing unit on the surface of said light hardening resin and (b) condense the optical beam from the scanning exposing means, said objective lens receiving light from the one-shot exposing unit before receiving the optical beam from the scanning exposing means, said one-shot exposing means including a condenser lens, said condenser lens and said objective lens comprise a symmetric optical system, said method comprises; causing said one-shot exposing unit to irradiate said light in an area which is offset by a predetermined number of unit areas on an inner side of a profile line of said cross-sectional shape data with respect to said unit areas overlapped with the profile line of said cross-sectional shape data on the surface of said light hardening resin; causing said scanning exposing unit to scan a center of said optical beam having a first diameter along a scanning line that is within an inner side of a profile line of said cross-sectional shape data and offset by a predetermined distance from the profile line of said cross-sectional shape data; and causing said scanning exposing unit to scan an optical beam, having a second diameter which is shorter than said first diameter, within the inner side of the profile line of said cross-sectional shape data.
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5. An optical shaping apparatus configured to irradiate light according to cross-sectional shape data of a three-dimensional model on a surface of a light hardening resin to form a hardening layer, and layering hardening layers to shape said three-dimensional model, comprising:
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a one-shot exposing unit configured to turn on/off irradiation of light to the surface of said light hardening resin for each predetermined unit area, and irradiate light collectively on a plurality of said unit areas for which irradiation of light is on; a scanning exposing unit configured to irradiate an optical beam with a predetermined diameter, and scan said optical beam on the surface of said light hardening resin; and a polarizing beam splitter configured to synthesize the light from the one-shot exposing unit and the optical beam from the scanning exposing unit; and an objective lens to receive light from the one-shot exposing unit and the optical beam from the polarizing beam splitter, the objective lens being configured to (a) image-form light from the one-shot exposing unit on the surface of said light hardening resin and (b) condense the optical beam from the scanning exposing unit, said objective lens receiving light from the one-shot exposing unit before receiving the optical beam from the scanning exposing unit, wherein, said one-shot exposing means includes a condenser lens, said condenser lens and said objective lens comprise a symmetric optical system, said one-shot exposing unit is configured to irradiate said light in an area which is offset by a predetermined number of unit areas on an inner side of a profile line of said cross-sectional shape data with respect to said unit areas overlapped with the profile line of said cross-sectional shape data on the surface of said light hardening resin; and said scanning exposing unit is configured to scan a center said optical beam having a first diameter along a scanning line that is within the inner side and offset by a predetermined distance from the profile line of said cross-sectional shape data; and said scanning exposing unit is configured to scan an optical beam, having a second diameter which is shorter than said first diameter, within the inner side of the profile line of said cross-sectional shape data.
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Specification