Disclosed are a spherical reflective screen for displaying an image and a method for manufacturing the screen. The screen has a spherical surface with a radius of curvature of a circle drawn centering around a point, and a focal length of the screen is the same as a projection length of a...
Min Pupil Size 2.0mm Radius of curvature 5.0 to 10mm (increment: 0.01mm) Chart Follow-up colorful fogging chart system Print 57mm thermal printer Packaging and delivery Selling Units: Single item Single package size: 44.5X28.7X49 cm Single gross weight: 20.000 kg Show more ...
[0020] FIGS. 5A-5C illustrate relationships between radius of curvature and focal radius. [0021] FIG. 6 illustrates an example of a waveguide stack for outputting image information to a user. [0022] FIG. 7 illustrates an example of exit beams outputted by a waveguide. [0023] FIG. 8 illu...
CONSTITUTION:A concave meniscus lens whose convex directed to the object side and a double convex lens whose face having a shorter radius of curvature is directed to the object side are provided as the first group and the second group respectively in order from the object side. A double ...
2. Better radius of curvature 3. Good aberration correction 4. The economic choice of collimating or focusing light 5. Visible or near infrared antireflection film 6. High precision & high surface roughness 7. Sizes can be customized as per the ...
amin radius of curvature ft 极小的曲率半径ft[translate] a米白色和天蓝色搭配,是最清爽纯净的组合,让整个沙发区干净利落,特别适合理性的都市新贵一族。 The yellow white color and sky blue matching, is the neatest pure combination, lets the entire sofa area be neat, a specially suitable rational metr...
The mirror120, preferably a concave cold mirror having a radius of curvature preferably about 276 mm, is disposed on the side of the lens110opposite video camera105and creates a magnified virtual image of the iris behind mirror120. In the preferred embodiment, mirror120reflects visible light with...
The autocollimating telescope method for determination of the radius of curvature and focal length of thin lens; 用分光仪测量薄透镜曲率半径和焦距的实验研究(英文) 3. Further study on thin-lens focal length measurement experiment; 再议对薄透镜焦距测定的进一步研究 更多例句>> 5) focal distance 焦...
OF THE LENS SYSTEM; N.sub.I and N.sub.II represent the refractive indices of lenses forming a cemented doublet on the image side of the diaphragm; R represents the common radius of curvature of an intermediate surface of the doublet and f represents the overall focal length of the lens ...
The cross-sectional shape of the refracting surface increases the radius of curvature along the cross-sectional curve with the distance from the intersection with the main meridian curve MM' from the center of the intermediate part P to above the short- distance part N and then becomes nearly ...