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发明授权
US08803936B2 Optical device capable of minimizing output variation due to feedback light, optical scanning apparatus, and image forming apparatus 有权
能够使由反馈光产生的输出变化最小化的光学装置，光学扫描装置和图像形成装置

Optical device capable of minimizing output variation due to feedback light, optical scanning apparatus, and image forming apparatus
摘要：
An optical device includes a surface-emitting laser array having a plurality of light-emitting portions; a package member on which the surface-emitting laser array is disposed; and a transparent member retained on the package member and disposed on an optical path of a light beam emitted by the surface-emitting laser array. The transparent member includes an incident plane on which the light beam emitted by the surface-emitting laser array is incident. The incident plane is inclined with respect to an emitting surface of the surface-emitting laser array at a first inclination angle which is smaller than a second inclination angle at which the light emitted by one of the light-emitting portions is incident on another, most-distant one, of the light-emitting portions via reflection by the transparent member.
摘要（中）：

光学器件包括具有多个发光部分的表面发射激光器阵列; 表面发射激光器阵列设置在其上的封装构件; 以及保持在封装构件上并设置在由表面发射激光器阵列发射的光束的光路上的透明构件。 透明构件包括由表面发射激光器阵列发射的光束入射的入射面。 入射面相对于表面发射激光器阵列的发射表面以比第一倾斜角小的第一倾斜角度倾斜，第二倾斜角由发光部分中的一个发射的光入射到另一个 通过透明构件的反射而分离发光部分。

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