The optical system includes at least one lens element, which outputs the light in a collimated beam on the oscillating reflector regardless of an orientation of the oscillating reflector.
该光学系统包括至少一个透镜元件，其与振荡反射器的定向无关地以准直光束的形式将光输出在振荡反射器上。
The aberration characteristics of the optical system of a single conic reflector and a two-lens null corrector are discussed.
讨论了由单一二次反射镜和放在其后的两透镜无光焦度校正板组成的光学系统的像差特性。
The optical system consists of glass reflector and divergent lens.
系统包括用玻璃精制而成的反光镜和发散透镜。
When the reflector takes photos, the shading plate can be synchronously closed, so that glare from a lens can be blocked and the photographic quality can be ensured.
当这个反光镜进行照相操作时，遮光板同步闭合，使来自镜头的眩光被遮挡，保证照相质量。
The first defect of digital cameras single lens reflector (DSLR) are have not LCD electronic viewfinder .
数码单反相机最大缺陷是缺少电子取景器，第二大缺陷是没有摄像功能。
The first defect of digital cameras single lens reflector (DSLR) are have not LCD electronic viewfinder .
数码单反相机最大缺陷是缺少电子取景器，第二大缺陷是没有摄像功能。
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