Refinements in lenses (e. g. , the Fresnel lens) and reflectors made it possible to substantially increase the light's intensity.

而利用透镜和反光镜的辅助设备可使灯光强度倍增。

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It investigates the focal switch phenomenon of a tilted phase L-G beam passing through a system with the aperture and lens separated.

研究了相位倾斜l - G光束通过光阑——透镜分离系统的焦开关现象。

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The meniscus lens 202 May be manufactured from, e. g., BK7, B270, SF10, SF57 or F2 glass, sapphire, plastic, acrylic, silicone, epoxy, or any other suitable material capable.

弯月透镜202可由(例如)BK 7、B270、SF10、F57或F 2玻璃、蓝宝石、塑料、丙烯酸、硅酮、环氧树脂或任何其它可以的适当材料制造。

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Sony's G lens line-up is strengthened for 2013 with the revised 70-400mm F4-5.6 G SSM II.

ENGADGET: Sony NEX-3N and Alpha A58 unveiled, heading to Europe this spring

These include Panasonic's new LUMIX G X VARIO 12-35mm lens, offering F2.8 brightness throughout its entire zoom range.

ENGADGET: Panasonic's Lumix lineup grows: DMC-G5 Micro Four Thirds, DMC-FZ200 superzoom and DMC-LX7 hands-on and sample shots

The LUMIX GH2 elevates the company's revolutionary LUMIX G Series, its line of Digital Single Lens Micro (DSLM) cameras that deliver professional-level features and performance in a compact and easy-to-use camera body.

ENGADGET: Panasonic's $900 Lumix GH2 officially debuts: 16MP, 1080p movie mode, 3D interchangeable lens