Optical shaping device and manufacturing method

An optical fabrication device comprising:

• a light source that emits light and cures a photo-curable resin;
• a digital micromirror device that reflects the light and projects a predetermined pattern;
• a microlens array that is disposed downstream of the digital micromirror device and that transmits the light that has been reflected by the digital micromirror device;
• an objective that is disposed downstream of the microlens array and that causes the light that has been transmitted through the microlens array to form an image;
• a container that holds the photo-curable resin;
• a sample platform disposed inside the container;
• and
• a controller that controls the digital micromirror device and causes the light to form an image having the predetermined pattern at each of levels that are different in distance from a main face of the sample platform, wherein
• the light source is a laser light source, and
• the light, emitted by the laser light source, has:
• a wavelength corresponding to half of an energy of light that causes the photo-curable resin to be cured when the photo-curable resin absorbs the light, and
• a pulse width on an order of femtoseconds.