Sharp Kabushiki Kaisha Corporation

Hamamatsu-photonics K.k.

Osaka University

Osaka City University

Sbi Pharmaceuticals Co., Ltd.

Kunio Awazu

Katsuji Iguchi

Hirofumi Kan

Tadataka Edamura

Takashi Yoshimoto

Naota Akikusa

Hiroya Sato

Jun Mori

Toshiyuki Ozawa

Katsunori Ishii

The present invention includes: a front-side positive trace (P) disposed on a flexible substrate (); a positive external connection line (P) connected to the front-side positive trace (P) to supply electric power; and LED chips () provided to the flexible substrate () and connected to the front-side positive trace (P), wherein an electric resistance between the positive external connection line (P) and one of the LED chips () which is farthest from the positive external connection line (P) is less than an internal resistance of the one of the LED chips ().

Photoirradiation substrate

A dental therapy apparatus which enables a dental therapy more surely and less invasively is provided. A dental therapy apparatus (A) comprises a laser light source () emitting laser light (L) having a wavelength within a wavelength region of 5.7 to 6.6 &#x3bc;m; a controller () pulse-driving the laser light source and controlling at least one of pulse width and repetition frequency of pulsed laser light emitted from the laser light source; and an irradiation optical system for irradiating a tooth () including a carious part () with the light emitted from the laser light source. In this dental therapy apparatus, the controller controls at least one of the pulse width and repetition frequency of the pulsed light, so as to selectively cut the carious part ().

Dental therapy apparatus

Growing community of inventors

Suita, Japan

Kunio Awazu