Nowadays, customers of optical salons have become more informed and make more demands on the quality of the glasses they make. It is difficult for optical workshops that do not have a proper production base to compete with large companies that are actively introducing modern lenses and frames into their work. The use of new automation technologies allows you to almost completely abandon the intermediate operations and manual labor in the process of making glasses. This significantly increases the competitiveness of products. Modern automatic equipment is easy to operate and provides high quality processing of lenses from a wide variety of materials, including modern ones. Therefore, now this type of equipment is becoming more and more widespread.
The automatic lines include a scanning device, a centering device and a machine for processing spectacle lenses along the contour. Scanners are designed to obtain accurate information about the shape and dimensions of the rim opening in frames of any type. On the centralizers, the lens is centered and blocked. On machines, lenses are processed along the contour with the application of any type of facet. Various automatic lines are produced that differ in the accuracy of scanning frames, the principles of centering spectacle lenses and the ability to perform additional operations, such as chamfering, drilling, milling, etc. Modern automatic machines for processing spectacle lenses have a very wide range of technical capabilities.
For the correct installation of lenses relative to the pupil of the patient's eye, it is necessary to mark the optical center or marking line on the lens. The resulting point or line will be aligned with the centering coordinate. The determination of the optical parameters of spectacle lenses, the marking of spectacle lenses and the control of glasses are carried out on dioptrimeters. By design, dioptrimeters are divided into ocular, projection and automatic.
When working with ocular dioptrimeters, data is read through the eyepiece. Work on such devices is carried out monocularly. First you need to adjust the dioptrimeter according to the eye of the observer using the diopter shift.
Ocular dioptrimeters of Russian and foreign production are similar in design.They have a collimator, a spotting scope and a reference channel. During operation, the lens or finished glasses are pressed against the attached ruler and fixed by the holder. The refraction is set on a diopter scale, which is moved using the refraction flywheel. The observer sees the scale in the eyepiece, or it is located on the flywheel. During measurements, a sharp vision of the collimator grid is achieved in the plane of the telescope grids. The reticle of the dioptrimeter collimator can have a different form (dotted reticle or cross with concentric circles). Spotting scope grids are made in the form of a crosshair and a circular degree scale. On dioptrimeters of foreign production, a special flywheel is provided, which requires a turn when measuring the direction of the main section. This makes the method of work more complicated, but increases the accuracy of the data obtained.
Automatic dioptrimeters perform most of the operations automatically. Modern devices greatly facilitate the work of opticians.
Automatic dioptrimeters are designed to measure the vertex refraction and prismatic action of spectacle and contact lenses, to orient and mark lens blanks, and to check the correct installation of lenses in the spectacle frame. An advanced optical system automatically detects the type of lens and switches the device to the correct measurement mode. Many versions of dioptrimeters have a built-in thermal printer for printing results and a color touch display. Getting rid of additional mechanical buttons allows you to make the setup process simple and intuitive. The wizard can quickly select measurement parameters and perform all operations directly on the touch screen.
The shadow test method (skiascopy) to determine the refraction of the eye is an important ophthalmological test that allows you to diagnose the type of refraction of the eye, carry out differential diagnosis and determine the severity of various pathologies, such as astigmatism, myopia or hyperopia.
A skiascopic ruler is used for diagnostics. This measuring device consists of two linear frames, in one of which plus lenses are inserted in succession increasing in optical power, and in the second - minus lenses in the range. Some ruler models have an additional lens attachment to reduce the pitch or increase the range.
The essence of the method is to observe the movement of shadows in the pupil area under the influence of a beam of light reflected from an ophthalmic mirror. By moving the mirror at different angles, the researcher obtains a moving shadow, clearly visible on the illuminated pupil. Having found the position of the shadow with the help of a skiascopic ruler, the refraction of the eye is determined.
To obtain reliable diagnostic data, technology and a clear sequence of all stages of the procedure, the quality of the equipment used are important, and therefore, it makes sense to choose the lines of reputable manufacturers. In addition, when choosing, the range of available refraction measurements, the width and length of the ruler, and the quality of the moving mechanism of the frame are taken into account.
The main advantages of the shadow test method are painlessness and objectivity, due to which skiascopic rulers are suitable for determining refraction in children, people with low intelligence, and simulant patients.
Beijing Zhanlishun Optics Glasses Company is a major Chinese manufacturer of optical products.
In 2009, we have competed the construction of additional buildings of the factory in order to increase the volume of production of goods. The quantity of produced goods have increased several times and we are ready to fulfill all orders of our customers.
Our company has established itself as manufacturer and supplier of excellent products with high quality and outstanding design. We are pleased that this year we have the opportunity to fulfill orders not only from our regular customers, but also to accept orders from new customers
The list of manufactured products:
- Eyeglasses frames
• We offer a huge number of models to meet customer needs.
• We can make individual orders from customer’s sketches and samples.
• In case of particular type of product, we provide the good prices and quantity.
• The Individual approach to each client.
• In order to make it simple, we directly deliver produced goods to the customer's address. The company has an export license and registration in many countries of the CIS.
In addition, the warehouse with our products is located in Beijing, China, thus if you want to view all products from the warehouse, please visit our internet shopwww.diverona.com
If you have any question, please use the information below to contact us
Internet catalog www.diverona.ru
Beijing Zhanlishun Optics Glasses Company 15th floor,Tower C,