说到自动对焦功能，一般都会认为是民用数码相机所使用的自动对焦功能。数码相机上的那种自动对焦即使拿着相机的人晃动了一下，或是被摄物前后移动了一点，聚焦在数码相机等上的焦点仍然清晰，这是因为相机的景深足够，即使没有准确对焦也能拍出清晰的图像。但在显微镜领域就不能这样，显微镜使用100x物镜时（综合倍率超过1000倍）景深只有约0.3μm（0.0003mm），对焦位置和样品只要有0.3μm的偏差就会离开焦面。中央精机的自动对焦系统能够在微小精密的对焦范围内实现自动对焦，即使移动样品也能持续实施跟踪对焦，是集成了各种先端技术的高科技产品。
About autofocus microscopes (AF microscopes)
When people hear “autofocus”, many may think of the autofocus in digital cameras. Even if a photographer or a subject moves slightly, a digital camera can focus on an image.
This does not mean that the camera completely tracks the subject with the autofocus. It is just that the focus area is large, so as long as the autofocus makes some degree of adjustment, the image should net be out of focus.
However, this is not the case with a microscope.
If an objective lens of a microscope is 100x (the total magnification exceeds 1000x), the focus depth (range where the subject comes into focus) is approx. 0.3μm (0.0003mm).
This means that if the microscope and the sample are by just 0.3μm, the subject is no longer in focus.
Our autofocus is a high-technology product that allows for automatic ultramicrossopeic focusing adjustment and tracking to keep a moving sample in focus.
特点 Features
优秀的跟踪性能
即使样品表面起伏或是倾斜也能实现跟踪对焦。
Excellent tracking performance.
Two-line sensor method for high-speed tracking of undulations and slopes can maintain continuous focus.
世界唯一的线阵传感器方式
世界上唯一使用线阵传感器(one-dimensional image sensors)的自动对焦显微镜系统
Word’s only line-sensor autofocus system.
The word’s only autofocus system that utilizes line sensors (one-dimensional image sensors).
独有的高性能
不仅适用于高反射率的金属表面，也适用于低反射率的纸张、滤纸、玻璃、透明塑料等材质；能够发挥其他类型自动对焦系统无法做到的高性能，是同时拥有高性能和高适用性的自动对焦系统。
Word’s leading focusing performance than ever.
Supports both high-reflectance metal surfaces and low-reflectance surfaces such as paper or filters. Also performs well on glass and transparent plastic, which is not possible with other methods. Our autofocus system is high-functioning, and there are few unsuitable samples.
广泛倍率支持
从宏观到微观，各种倍率的镜头都可使用。
From macro to micro.
Supports a broad range of magnifications from macro to micro.
简单的创意、显著的效果！！新开发的双线阵传感器
Simple idea, huge benefits ! Newly-developed two-line-sensor method
与竞品的性能比较Performance comparison with other autofocus methods
项目 Item | 线阵传感器式 Line sensor method | 激光式 Laser method | 图像式 Video signal method |
跟踪性能 Tracking type autofocus capability | 优秀 Excellent | 优秀 Excellent | 尚可 Acceptable |
透明产品（如素玻璃）的适用性 Support for transparent body [plain glass] samples | 优秀 Excellent | 良好 Good | 尚可 Acceptable |
低反射率的纸张等产品的适用性 Support for samples with low reflectance, such as paper | 良好 Good | 尚可 Acceptable | 尚可 Acceptable |
表面不平及有孔洞等产品的适用性 Support for samples with holes or dents | 优秀 Excellent | 较差 Poor | 优秀 Excellent |
1秒内的对焦速度（详细设置后可更快） Focusing speed within 1 second (faster with condition setting) | 优秀 Excellent | 优秀 Excellent | 尚可 Acceptable |
如何选择合适的型号
About model selection
1、请参考以下条件选择合适的型号
Please inform us of the following contents in order to select the model.
样品类型 Work | 晶圆、玻璃、薄膜、纸张等 Wafer, Glass, Film, Paper, etc. |
相机 Camera | 面阵相机 Area camera | C口、F口、其他 C mount, F mount, etc. |
像元尺寸 Device size |
品牌、型号 Brand name (Manufacturer), Product Number |
线阵相机 Line camera | F口、M42口、其他 F mount, M42 mount, etc. |
像元尺寸 Device size |
品牌、型号 Brand name (Manufacturer), Product Number |
观察方法 Observation | 明场观察、暗场观察、偏光观察、微分干涉观察等 Brightfield, Darkfield, Polarizing, Differential Interference Contrast, etc. |
物镜 Objective lens | 品牌 Brand name (Manufacturer) | 尼康、奥林巴斯、三丰、涩谷光学等 Nikon, Olympus, Mitutoyo, Shibuya Optical, etc. |
使用倍率 Magnification | 2.5X、5X、10X、20X、100X、其他 2.5X，5X，10X，20X，100X，etc. |
鼻轮或物镜滑台 Revolver or Objective slider | 鼻轮 Revolver | 手动、电动、不要（单镜头） Manual, Motorized, One objective lens |
物镜滑台 Objective slider | 2孔、4孔、6孔、不要（单镜头） Two ports, Four ports, Six ports, One objective lens |
2、规格概略
Outline specifications
型号 Model | 规格概略 Outline specifications |
AF-IZ型 AF-IZ type | 单镜头、C口、明场观察 Objective lens, C mount, Brightfield observation |
AF-WF型 AF-WF type | 单镜头或鼻轮或物镜滑台、C口或F口、可使用明场、暗场、偏光、微分干涉 Objective lens or Revolver or Objective slider, C mount or F mount, Brightfield, Polarizing, Darkfield, Differential Interference Contrast |
AF-WM型 AF-WM type | 单镜头、C口或F口、可使用微分干涉 Objective lens, C mount or F mount, Differential Interference Contrast. |
AF-UNB、UN型 AF-UNB/UN type | 适用于尼康、奥林巴斯等显微镜的改造 Comply with commercially available microscope or Nikon, Olympus, etc. |
AF-VW型 AF-VW type | 激光修复用自动对焦系统 Laser repair |
AF-77VB-BD型 AF-77VB-BD type | 可同时使用明场暗场观察 Brightfield/Darkfield observation, Brightfield/Darkfield illumination (simultaneously) |
3、选配件
About optional support
观察照明部：光圈调节
Observation illumination unit : diaphragm
偏光组件
Polarizer unit