Optical shaping apparatus and method of manufacturing shaped object

The optical shaping apparatus addresses precision issues in photolithography by using a tank with a light-transmitting portion, a movable platform, and a gas control system to form uniform resin layers, achieving high-precision molded objects.

JP2026034755APending Publication Date: 2026-02-27JVC KENWOOD CORP
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Patent Information

Application Number
JP2025277659
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Conventional liquid level control methods in photolithography lead to precision issues due to light absorption into excess photo-curable resin, causing uneven hardening and defects in molded objects.

Method used

An optical shaping apparatus with a modeling tank featuring a light-transmitting portion, a platform and partition wall that can be raised and lowered, and a lifting mechanism to control the formation of photocurable resin layers, along with a gas supply and exhaust system to maintain precise layer thickness and prevent excess resin hardening.

Benefits of technology

Enables the formation of shaped objects with high precision by ensuring uniform resin layer thickness and preventing excess resin hardening, resulting in accurate and well-defined molded parts.

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Abstract

To provide an optical shaping apparatus capable of accurately molding a shaped article, and a method for manufacturing the shaped article.SOLUTION: The three dimensional shaping apparatus includes a shaping tank (11), a light irradiation unit (20), a platform (12) capable of moving up and down with respect to the shaping tank (11) and holding a shaped object (2) obtained by laminating cured layers (2a) by light irradiation, a partition wall (13) capable of moving up and down with respect to the platform (12), formed in a cylindrical shape, disposed outside the platform (12) via an airtight member (17), and forming an airtight space (3) in cooperation with the platform (12). an air supply / discharge controller (133) configured to bring a liquid surface of the cured layer (1a) into contact with a lower surface 2a of the shaped object (2).SELECTED DRAWING: Figure 8
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Citation Information

Patent Citations

  • Three-dimensional modeling apparatus and three-dimensional modeling method

    JP2020062841A