Overview：

Dalian Jian Ying Optical Technology Co., LTD., self-developed automatic version of eyeglasses one-sided shape meter, model VM3000

Manual function: automatic detection of lens S, C, ADD, Axis and other parameters. (as shown in figure)

appearance

Single/non-sphericity value Progressive /ADD value

Automatic applicable functions:

1. Online detection of garage sheet: automatic docking system order parameters, detection and judgment, data analysis, storage functions, to meet the needs of intelligent production.

2. Suitable for a variety of lenses: automatic adjustment of equipment detection parameters according to the mark position of transparent lens, polarizing lens, asymptotic lens, etc.

3. Automatic equipment: the equipment is equipped with automatic equipment, suitable for the customization of production needs.

Characteristic：

Don't hurt lens: lens convex face up.

More arbitrary placement: asymptotic and single lens, near the center, any Angle can be placed, without fine adjustment position.

Full function: with VM2500 function, precision is exactly the same, suitable for lens, mold, garage pieces and other detection.

At the same time, the addition of prism detection and eccentricity detection function.

An adaptive polarizing coating lens detection function is added.

Technical index：

1. The relation between dispersion and refractive index?

The dispersion coefficient is an important index to measure the imaging quality of lens, usually expressed by abbe number, so the dispersion coefficient is also called abbe number.

The higher the dispersion coefficient (Abbe number) is, the less obvious the dispersion is, and the better the imaging quality of the lens is. The smaller the dispersion coefficient (Abbe number) is, the more obvious the dispersion is, and the worse the image quality of the lens is. The refractive instrument with precision no less than 3×10ˉ4 could be used to determine the ˉ color resolution of optical lens. The value is between 32 and 60. The higher the Abbe number is, the less distortion is caused by the incident visible light.

The ratio of the sine of the transmitted light Angle to the Angle of incident light, which is characteristic of the medium.

Its value varies slightly due to the different measuring base wavelength and environment. For different refractive index lenses with the same design thickness and refraction, the refractive index is inversely proportional to the lens thickness and transmittance, and its value is generally between 1.49 and 1.74.

In general, the dispersion coefficient (Abbe number) is inversely proportional to the refractive index of the lens, that is, the larger the refractive index is, the smaller the dispersion coefficient (Abbe number) is and the more obvious the dispersion is.

2. Stress · analysis (as shown in figure)

The stress distribution and size of mechanical parts and components are related to the load and temperature they bear, as well as the shape, size and material properties of the parts. Stress analysis methods mainly include analytical method, numerical method and experimental method. In order to verify each other and improve the reliability and effectiveness of stress analysis, the method of combining calculation and experiment is often used in stress analysis of mechanical parts and components with complex structure.