Image forming device

Abstract

Abstract PURPOSE:To improve image forming performance by using an effective reflecting surface having good flatness, and to improve the productivity of a multiple roof mirror array by forming ineffective reflecting surfaces as roof mirror surfaces positioned at both terminals of the multiple roof mirror array. CONSTITUTION:A couple of roof mirror surfaces 30a1 and 30a2 are formed at roof mirror parts 30a positioned at both terminals of the multiple roof mirror array 33, and the roof mirror surface 30a1 on the end part has a thickness variation structure, so the flatness deteriorates owing to a drop in molding. For the purpose, this part is regarded as an ineffective reflecting surface and not used; and aperture holes 35 at both terminals of an aperture plate 36 provided between a multiple lens array 34 and the multiple roof mirror array 33 are closed to form nonaperture parts 37, and an area which is close to the center and has the uniform quantity of light is used as an effective image formation area.

Inventors

• 👤 Toshiyuki Iguchi
• 👤 敏之 井口

Bibliographic Details