Be not spherical lens grind make with detect

  • Time:
  • Click:134
  • source:LENA CNC Machining
Summary: This device is a treatment in be not spherical lens process, grind make with detected device. Grinding the method that formulate is a blame spherical lens is fixed in a special clip its go up to write edge check into travel edge, detected method is to use optical system unit to undertake detecting. Such methodological equipment is simple, detect precision is tall, rate is rapid, agree with the lens that high accuracy is not spherical lens is made. Well-known, mask of axial symmetry ball has the advantage with free much variable. Accordingly, when spherical system cannot satisfy a requirement, can think of blame is spherical. Current, perfect with each passing day as what be not spherical optics to the design is made and test a technology, be not spherical oneself to be applied extensively. The blame that produces now is spherical lens, because detect the instrument is not quite accurate, lens face is put have tiny " step " , if inhomogenous be more than 6 micron, assembling in debugging, occurrence filament black shadow, bright annulus. Repair of spherical to unqualified blame lens is difficult. To solve these problems, need uses optical system to detect, so that raise precision.

Its main process cent is made to grind with detect two processes. 1 blame is spherical of lens grind if the graph is shown 1 times,make, the equation that is not spherical lens is X=2.

272912406 × 10-2y2+2.

178458996 × 10-6y3+1.

836034086 × 10-9y4 designs special fixture above all, connection axis. It must be hollow, so that measure beam of light to pass, the connect on it and main shaft wants to cooperate cheek by jowl, homocentric had spent. Design iron model next. The equation that asks by blueprint makes its curve, if pursue 2. Graph 1 blame is spherical lenticular sketch map pursues if 2 iron example pursues 3, be not spherical lens to secure go up in connection axis, put in next fine the roll that makes on the connect of the main shaft that grinds polisher H5, undertake repairing grinding with handiwork next. Take the different error of the area according to differring, use different long tape if the tool pursues 4. 1.

Contact 2.

Join axis 3.

Be not spherical lens 4.

Xiao vitreous piece pursues plant of 3 long models pursues all sorts of 4 long grinding work provide coarseness: When the example that use iron is checked, check the aperture that does not join closely with naked eye view even, can pass. Fine grind: ? Cap of take along sth to sb whistles children's hair of  of shaddock of ＝ of ā of any of several hot spice plants of Mu of osmund M Lan stops Qi of Hu of ＜ of Luo of Hu of Qiang of show off of calf of Mei of bamboo-plaited basket or suitcase of delay of ト of play chess of  of Dong of quiet of Lu of ぞ Lu  shelters Li of υ Shen tall as concubine of an emperor virtuous magpie of the  that bake takes brilliant of Wan of  of dainty of river fade compose ü : Be not spherical polishing model, use in elastomer (sponge) on apply a blanket, rely on the action of elastomer, make polishing feels clingy blame spherical surface, cast entirely bright till. This kind machines a method, cooperate optical law to detect, the blame that can make high accuracy is spherical, but defect is efficiency inferior. 2 blame are spherical of lens detect in be not spherical treatment process, 1.

Adjustable illuminant 2.

Spotlight 3.

Blade 4.

Adjustable astral dot orifice plate pursues structure of 5 blade appearance 1.

The star burns hole 2.

Be not spherical graph the center of beam of light that 6 stars aperture gives out is high (protruding) sunken plan of local protruding center 7 judgement belt detects the method is having main effect. Detect precision is tall, treatment precision rises subsequently. Here, we use optical method, its detect precision is tall, equipment is simple, detect rate is rapid, and dispute contact detects. Blade appearance structure is shown 5 times like the graph. Bulb the condenser of 1 classics of beam of light that give out 2 again the illuminator via containing cut 4 reflex and focusing is measuring orifice plate 3 on. Know exactly about sth of astral orifice plate the astral aperture with different diameter and two slit with different width. The beam of light that gives out from astral aperture is shot to be measured to be not spherical if pursue 6. The basis is not spherical optical feature, astral point light source is set in the position of the focal F of paraboloid 1, the beam of light that from the star dot aperture gives out is passed through blame is spherical 2 it is parallel beam of light. Use the local error of the surface in transmission smooth side.

Undertake with screen umbriferous show, if pursue 1, transmission light examination is not spherical lens unit. The dot beam of light that from the star of blade appearance dot aperture gives out, shoot to contain inside the blame of aperture connection axis is spherical, the beam of light that transmission gives casts Xiang Bing to undertake umbriferous show. Ask into what resemble light and shade is even, without remarkable shadow and aureola, have umbra place, make clear have raised local error: Have the place of halo, make clear have sunken local error. This kind detects method, simple equipment, detect precision is tall, rate is rapid. And can come true blame is spherical in dish on detect, arrive to resemble all the time even hind, leave the discretion of dish of judgement belt again, if pursue 7. Through big child the experiment can reach such conclusion: Grind with special fixture make edge check can be written by the side of implementation; Use optical law to detect, precision tall, rate is rapid, and dispute contact sex detects; In OK to production and experiment applying, this kind of method goes. CNC Milling