万喜堂彩票最新网址

160多年以来，徕卡显微系统始终为研究，工业和医学领域的各种应用设计和制造优质物镜。 徕卡光学设计师的创新能力，联合徕卡精密光学工程师的经验和专业知识，确保为显微镜提供优质的光学元件。 经由复杂的，*生产过程所生产出的物镜，保证优质图像质量。

光学的单色像差和色差

在光学领域中主要有2类像差需要被修正的，单色像差和色差。常见的单色像差问题有：球差，像散，彗差，场曲和畸变。而色差可分为纵向和横向。

分辨率可达20nm

我们的物镜可做到像差化修正，并具备优质的光学效能，荣获多个奖项。
世界各地，科学家们都依赖于徕卡20nm的光学分辨技术对最细微的细胞结构作可视化展现。

Leica Achromatic Lens

Leica achromats are powerful objectives for standard applications in the visual spectral range, offering field flatness up to 23 mm.

The absolute value of the focus differences between red wavelength and blue wavelength (2 colors) is ≤ 2x depth of field of the objective.

HI PLAN

HI PLAN objectives feature good chromatic correction at two wavelengths and flatness over the whole field of view. Even the edges of the image are sharp and require no refocusing. HI PLAN objectives are designed for visual fields up to 20 mm. Versions for phase contrast are available. Leica HI PLAN objectives offer good correction properties while being extremely reasonably priced.

N PLAN

The N PLAN objective class comprises further improved achromats with good field flatness up to 22 mm. N PLAN objectives are suitable for transmitted light andDIC, N PLAN PH for phase contrast. For incident light applications including differential interference contrast (DIC), N PLAN EPI objectives are available. The N PLAN EPI BD can also be used as a darkfield objective. The N PLAN EPI incident light objectives feature excellent image contrast and safe working distances.

FL PLAN

FL PLAN objectives are modern universal objectives with outstanding chromatic correction and field flatness up to 23 mm. State-of-the-art coating techniques give FL PLAN objectives high transmission for fluorescence excitation. All contrasting methods are possible. FL PLAN objectives are optimized for fluorescence, PH andDIC.