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3 results about "Cylindrical power" patented technology

A:A cylindrical power is due to an abnormal oval shape of the eye ball or cornea. Normally it should be round like a foot ball. This requires cylindrical lenses in spectacles. It is also called astigmatism.

Intelligent Face Shape Measuring Instrument

ActiveCN309915896SSpherical powerOptical property
1. Name of the product in this design: Intelligent Surface Measuring Instrument. 2. Purpose of this design: To measure and test the optical properties of lenses, such as spherical power, cylindrical power, and prism power. 3. The key design points of this product are: the shape of design 1, and the shapes, colors, and combinations of design 2 and 3. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: Other explanation: Designs 2 and 3 for which protection is sought include color.
Owner:JIANGSU MINGYUE PHOTOELECTRICS TECH +1

A pointing mirror assembly and its bonding tool

The application discloses a pointing mirror assembly and a bonding tool thereof, and relates to the technical field of space laser communication. The pointing mirror adopts a back convex cylindrical structure form, improves the rigidity of the bonding part of the mirror body, improves the anti-deformation capability, and provides sufficient operation space for the tool at the back. The flexible joint is locally bonded with the mirror body, and a force releasing lever is formed from the bonding point to the inner flexible groove root, so that the shrinkage deformation of the glue layer is released, the bonding stress is reduced, and the bonding stress caused by the continuous bonding of the whole circumference of the outer cylindrical surface is avoided. In addition, the circumferential material of the bonding point is continuous, the bonding surface cylindricity and local rigidity are easy to control, the uniformity of the glue layer is easy to guarantee, and the pointing mirror position stability under vibration is stable. The external interfaces are far away from each other, and the unevenness influence is weakened. By selecting appropriate bonding layer thickness adhesive and using the tool plug, the two bonding parts do not need to be precisely machined and matched. After bonding, the assembly precision and consistency are high, the subsequent whole machine adjustment is facilitated, and the space environment working condition requirements are met.
Owner:BLUE STAR OPTICAL (SHANGHAI) AEROSPACE TECH CO LTD

Adjustable cylindrical lens and head-mounted display comprising the same

ActiveCN116113870BOptical partsLensSpherical powerOptical axis
The system comprises three optical elements arranged along an optical axis, each optical element having a different cylindrical axis and a variable cylindrical power. The three elements together form a composite optical element having an overall spherical power (SPH), a cylindrical power (CYL) and a cylindrical axis (Axis) which can be varied according to a prescription (Rx).
Owner:MAGIC LEAP INC