This is because, with a broad source, light rays hit your subject from more directions, which tends to fill in shadows and give more even illumination to the scene.
这是因为光源越广，射在物体上光线的方向就越多，这会起到增加场景中的照明、减少阴影的作用。
LED light sources complying with these specifications are utilized as the source of illumination in lighting products that comply with the appropriate end-product standard as listed below.
符合规范要求的LED光源被用作灯具产品的照明源，这些灯具产品都要符合到如下所列的其对应的成品安全标准要求。
The main source of illumination is called the key light. The key light is frequently supplemented by subsidiary lighting. The chief source of light for outdoor shooting is sunlight.
主要光源称为主光。主光常常用辅光作补充。室外拍摄的主光为阳光。
This method USES at least two light sensor measurements to derive information concerning both the ambient light levels and the illumination source output level for known drive conditions.
该方法使用至少两次光传感器测量，对于已知驱动条件得出有关环境光照水平和照明源输出水平二者的信息。
The first and second detected light levels are processed to derive a first value representing the ambient light level and a second value representing the illumination source output level.
对于第一和第二检测出的光照水平进行处理，得出表示环境光照水平的第一值和表示照明源输出水平的第二值。
A display system includes a light source and a first optical system coupled to the light source and adapted to provide an illumination beam along an illumination path.
一种显示系统包括光源和第一光学系统，所述第一光学系统光耦合到所述光源，并且适于沿着照明路径而提供照明光束。
Kohler illumination was used in proximity lithography, and a flys eye lens was adopted to form multi-point source in order to uniform the light intensity on the mask plane.
接近式光刻中一般采用柯勒照明系统，并采用蝇眼透镜形成多点光源均匀掩模面的光场分布。
Methods of Restoration of Human Face illumination with Unknown Light Source and Shape from shading (SFS) have been introduced for illumination problems.
在光照问题上，提出了一种未知光源参数的人脸光照恢复方法和一种基于阴影形状的非对称的人脸光照归一化方法。
The utility model is matched with lead beams of the cold light source, which enables doctors to obtain clear illumination without floor lamps and head mirrors; a light source is stable.
本实用新型与冷光源引光束配合使用，可使医生不用立灯，不戴额镜，就可获得很清晰的照明，且光源稳定。
A new LED line light source is adopted to obtain a high intensity and uniform illumination, and field of view is partitioned by means of multiple linear CCD sensors parallel imaging.
采用了一种新型LED线光源获得高强度均匀照明，多线阵c CD拼接成像完成幅面分割。
The device has the advantages of long service life, high light emission efficiency and stable light output, and can meet the illumination requirement for backlight source of LCD device, etc.
且该装置使用寿命长、发光效率高、输出光稳定，适合作为LCD显示器件的背光源等照明要求。
The device has the advantages of long service life, high light emission efficiency and stable light output, and can meet the illumination requirement for backlight source of LCD device, etc.
且该装置使用寿命长、发光效率高、输出光稳定，适合作为LCD显示器件的背光源等照明要求。
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