查询词典 zoom lens

The above-described configuration of the zoom lens system allows appropriate setting of the imaging magnification of the fourth lens unit and the focal lengths of the third and fourth lens units.

变焦镜头系统的上述结构允许适当设定第四透镜单元的图像放大率以及第三和第四透镜单元的焦距。

In addition, if you want to set up a 2.35 format screen without an anamorphic lens, you can do that on both projectors by using the powered zoom lens adjustments to zoom back and forth when you change from 2.35 to 16:9 material.

此外，如果你想建立一个没有变形镜头一2.35格式的屏幕，你可以做两投影机使用电动变焦缩放调整镜头来回当您从2.35更改为16：9材料。

The 1.5x zoom lens has enough range to move back and forth from 2.35 to 16:9 if the user wishes to set up a 2.35 CIH system with zoom changes rather than the anamorphic lens.

的1.5倍变焦镜头，有足够的范围，摆脱2.35来回16时09分，如果用户希望建立一个2.35 CIH病毒系统变焦的变化，而不是变形镜头。

This method is proved feasible from a design example,it also shows that designed system is simple and compact and easy to fucus for zoom lens with large aperture.

标 签 变焦距物镜光学系统大口径成像质量 zoom lens optical system large aperture imaging quality

Factory design and production of various high-precision zoom lens, projector lens and as high as /20 flatness of the plane mirror is widely used in a variety of measuring instruments; factory production testing of optical imaging lens, the resolution of 2300000 pixels, relative distortion of 0.05%, which is high-precision imaging and quality measurement of choice for detection.

本厂设计生产的各种高精度变焦镜头、投影仪物镜及平面度高达λ/20的平面镜，广泛应用于各种测量仪器；本厂生产的光学影像检测镜头，其分辨率达到230万像素，相对畸变为0.05％，是高精度影像测量及品质检测的首选。

This is very important in modern lens, the reflective glass surface decreased, so that there is more than a dozen pieces of the zoom lens on a reflective glass surface will be much less, so that the light through the lens will not be significantly reduced.

这在现代镜头上非常重要，玻璃表面的反光下降，这样在有十几片镜片的变焦镜头上的玻璃表面的反光就会少很多，这样通过镜头的光就不会明显减少。

The twin-lens kit gives first-time users loads of flexibility too, with an excellent Zuiko 14-45mm f/3.5-5.6 wide zoom lens and a Zuiko 40-150mm f/4.5-5.6 telephoto zoom lens.

双镜头套件，让第一次使用的用户负载的灵活性，也与一个很好的zuiko 14 -四十五毫米f/3.5-5.6广泛的变焦镜头和一个zuiko 40 - 150毫米f/4.5-5.6镜头的远摄变焦镜头。

It is difficult to be simulated and analyzed due to the excessive surfaces, complex structure and locomotory parts in zoom lens. All the transmission planes taken as the partial reflection and partial transmission planes were simulated with ASAP（advanced system analysis program）and the stray rays on "dangerous surfaces" which easily generate the ghost images in zoom lens were analyzed. Based on it, the zoom lens was optimized and the quality of image was improved by changing the curvature and refractive index of the second reflection planes.

利用ASAP软件模拟每个透射面作为部分透射、部分反射的表面，对变焦光学系统非轴上光进行分析，模拟出变焦系统的光学元件表面和光机内壁，实行实际光线追迹，然后以像面为研究对象，进一步实施实际光线追迹，模拟出全部散射光在像面上的能量分布，找出鬼像形成的原因，并在此基础上通过改变二次反射所在面的曲率或改变所在面的折射率两种方法对变焦光学系统进行优化，减小鬼点数目，以提高系统的成像质量。

To improve the performance of zoom systems and achieve a good imaging quality in WFOV, and to simplify the mechanical structure for the convenience of design, process and adjustment, a design concept that combines the conventional spheric optics with the aspheric optics was introduced in the design of zoom lens.

为提高变焦距系统的工作性能，使其在大视场时仍具有良好的像质，且系统结构简单，易于机械设计、加工及装调，在设计中引入了传统球面光学设计与非球面相结合的设计思想。

Sanyo Xacti VPC-HD1 features 720p HD video scanning (1280 x 760 progressive), 16:9 widescreen format (HD-SHQ / HD-HQ modes), 5.1 megapixel digital still photos, advanced MPEG-4 compression technology, ability to capture still and video images simultaneously, super-fast 9Mbs frame rate, 2.2 inch OLED (Organic Light-Emitting Diode) display, 10x optical zoom lens plus 10x digital zoom lens, ability to record over 41 minutes of High-Definition video on a 2 GB SD Card, built-in digital image stabilization, super fast start-up, wind noise reduction, built-in 4-mode flash, AAC-LC stereo recording, 22 adjustable manual focus settings, super macro shooting as low as 1cm, talking navigation guide for first-time users, PictBridge compatible and has USB 2.0 and S-Video output.

三洋HD1功能支持720p高清晰度视频扫描（ 1280 × 760渐进）， 16：9宽屏幕格式（的HD - SHQ /高清总部模式）， 510万像素数码照片，先进的MPEG - 4压缩技术，能够捕捉仍和视频图像的同时，超高速9Mbs帧速率， 2.2英寸的OLED显示屏， 10倍光学变焦镜头加上10倍数字变焦镜头，能够记录41分钟的高清晰度视频的2 GB的统计处卡，内置的数字图像稳定，超快速启动，风能减少噪音，内置的4模式闪光灯，支持AAC -立法会立体声录音， 22个可调手动对焦设置，超微距拍摄低1厘米，说话的导航指南第一次使用者，兼容PictBridge和USB 2.0和S - Video输出。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。