An autonomous optical navigation scheme for landing of spacecraft on a small celestial body based on navigation camera and laser range finder measurements was studied.

研究了空间飞行器向小天体着陆阶段基于导航相机和激光测距仪的自主光学导航方案。

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The plaintiff obtained the exclusive right of registered trademark of "Nikon" in China in 1979, whose approved use range is such products as "video camera, camera, glasses and optical equipment".

1979年在中国获得该注册商标专用权，核定使用商品为“摄影机、照相机、眼镜、光学设备等”。

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The range of detection is one important specification for expressing the ability of detection and recognition of space-based optical camera.

探测距离是衡量空间目标天基可见光相机探测、识别能力的一项重要指标。

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With its compact design and powerful 16x optical zoom, the PowerShot SX160 IS is a versatile camera with a dynamic optical zoom range from 28mm wide up to 448mm, perfect for everyday use.

ENGADGET: Canon announces PowerShot SX500 IS, SX160 IS superzoom cameras ahead of Photokina

Exclusive to Sony, 'By Pixel Super Resolution' processing further extends the camera's 5x optical zoom range, allowing full-resolution 16.2 megapixel images with a maximum 10x zoom.

ENGADGET: Sony Cyber-shot TX55 packs 16.2-megapixel sensor, promises 'extremely low' noise in dim light

The slim, super-stylish Cyber-shot WX300 camera is the world's smallest and lightest digital still camera that packs a powerful 20x optical zoom range.

ENGADGET: Sony brings Cyber-shot HX300, WX300 and TX30 to the US with fast autofocus