CN112296765A - Wedge-shaped ultrathin optical glass processing technology - Google Patents
Wedge-shaped ultrathin optical glass processing technology Download PDFInfo
- Publication number
- CN112296765A CN112296765A CN202011067107.XA CN202011067107A CN112296765A CN 112296765 A CN112296765 A CN 112296765A CN 202011067107 A CN202011067107 A CN 202011067107A CN 112296765 A CN112296765 A CN 112296765A
- Authority
- CN
- China
- Prior art keywords
- optical glass
- processing technology
- wedge
- grinding
- placing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005304 optical glass Substances 0.000 title claims abstract description 101
- 238000012545 processing Methods 0.000 title claims abstract description 44
- 238000005516 engineering process Methods 0.000 title claims abstract description 26
- 238000005498 polishing Methods 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 238000005554 pickling Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000012937 correction Methods 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 238000001291 vacuum drying Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 239000002738 chelating agent Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B11/00—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Surface Treatment Of Glass (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a wedge-shaped ultrathin optical glass processing technology, which comprises the following steps: placing optical glass to be processed, and placing the optical glass to be processed on a fixing tool of a polishing machine for fixing; coarse grinding, namely performing coarse grinding processing on the surface of the optical glass by using a polishing machine; and (5) performing accurate grinding, and after the coarse grinding size meets the requirement, using a pre-blended polishing solution to perform surface shape correction. After the rough grinding is finished, cleaning the optical glass, wherein the cleaning steps comprise the following steps: pouring the prepared pickling agent into a funnel above the plastic container; placing optical glass in a plastic container and suspending the optical glass at a position right below a funnel; opening a valve of the funnel to enable the pickling agent to be uniformly poured on the rough grinding surface of the optical glass; wiping and cleaning the optical glass by using superfine fiber dust-free cloth; and (3) placing the optical glass in a closed space for drying. In the invention, the processing technology has higher level, higher processing requirement and better quality of processed products, and is suitable for processing and producing optical glass with high requirement.
Description
Technical Field
The invention belongs to the technical field of optical glass processing, and particularly relates to a wedge-shaped ultrathin optical glass processing technology.
Background
With the rapid development of the fields of precision optical instruments, optical information communication and photoelectronic products, the demand on optical glass with excellent performance is higher and higher, and in optical design and optical communication, the optical glass with the refractive index of 1.9-2.2 has profound significance for simplifying an optical system, improving imaging quality, further miniaturizing a mobile phone and a digital camera and improving the optical communication technology, so that the surface material of the optical glass is ensured to be uniform in the processing process of the optical glass, and the stress and the optical constant before and after the optical glass is processed are kept unchanged.
The processing technology of the existing optical glass is still similar to the traditional glass processing technology, namely, mechanical polishing equipment is matched with polishing liquid to process the surface of the glass, when the polishing mode is not advanced in a breakthrough manner, the technical breakthrough point of the existing optical glass enterprises is formed by how to improve the processing technology, and the requirements of the existing optical glass processing technology on the smoothness and the surface precision of the surface of the glass still have certain defects, so that the actual imaging effect of the product is influenced. Therefore, a wedge-shaped ultrathin optical glass processing technology is provided.
Disclosure of Invention
The invention aims to: in order to solve the problem that the existing optical glass processing technology still has certain defects on the requirements of glass surface finish and surface precision processing, the wedge-shaped ultrathin optical glass processing technology is provided.
The technical scheme adopted by the invention is as follows:
a wedge-shaped ultrathin optical glass processing technology comprises the following steps:
step 1: placing optical glass to be processed, and placing the optical glass to be processed on a fixing tool of a polishing machine for fixing;
step 2: coarse grinding, namely performing coarse grinding processing on the surface of the optical glass by using a polishing machine;
and step 3: fine grinding, after the coarse grinding size meets the requirement, using a pre-blended polishing solution to correct the surface shape under the conditions that the air pressure is 0 and the rotating speed is 5r/min, wherein the correction time is 40-60 min;
and 4, step 4: and (4) quality inspection, wherein the product with the maximum angle error of 30 seconds, the maximum height error of 0.02mm and the face shape precision of 1/4@632.8nm is a qualified product, and warehousing the qualified product.
In the step 1, when the optical glass is fixed with a fixing tool of a polishing machine, the optical glass is fixed in a vacuum adsorption mode, so that the product is ensured to be attached to a smooth surface of the tool, and meanwhile, an aperture cannot appear.
Wherein, the parallelism of the milled surface of the fine grinding is controlled within 0.003 mm.
Wherein the pH value of the polishing solution for fine grinding is 0.05.
Before the optical glass to be processed is placed in the step 1, the precision of the polishing tool is checked, and the maximum angle error of the tool is controlled to be 5 seconds and the maximum height error is controlled to be 0.005 mm.
After the rough grinding is finished in the step 2, cleaning the optical glass, wherein the cleaning step comprises the following steps:
step 1: pouring the prepared pickling agent into a funnel above the plastic container;
step 2: placing optical glass in a plastic container and suspending the optical glass at a position right below a funnel;
and step 3: opening a valve of the funnel to enable the pickling agent to be uniformly poured on the rough grinding surface of the optical glass;
and 4, step 4: wiping and cleaning the optical glass by using superfine fiber dust-free cloth;
and 5: and (3) placing the optical glass in a closed space for drying.
In the step 5, the drying is carried out in a vacuum drying mode, and the vacuum degree is 0.08 MPa.
In the step 5, before vacuum drying, the optical glass is placed in distilled water at the temperature of 60-65 ℃ for standing for 15-20 min, and then taken out for vacuum drying.
Wherein the pickling agent comprises the following components: 12-15 wt% of organic acid, 3-5 wt% of co-extrusion, 12-19 wt% of chelating agent, 1.5-2.8 wt% of surfactant, 0.7wt% of dispersant and the balance of water.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, on the basis of the traditional optical glass processing technology, the high-acid polishing solution is matched under the vacuum environment of 0 air pressure for low-speed fine grinding polishing, and the surface of the roughly-ground glass is subjected to more fine surface type correction, so that the surface smoothness and surface precision of the optical glass are higher, all errors are smaller, and the processed optical glass has higher quality.
2. According to the processing technology, the angle, height and surface accuracy in the traditional processing technology are combined, the processing difficulty of the angle, height and surface accuracy is solved, and the processing level of the optical glass is further improved.
3. In the invention, the processing technology has higher level, higher processing requirement and better quality of processed products, and is suitable for processing and producing optical glass with high requirement.
Drawings
FIG. 1 is a schematic flow chart of a processing process according to the present invention;
FIG. 2 is a schematic view showing the flow of the cleaning operation in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In a first embodiment, referring to fig. 1, a wedge-shaped ultra-thin optical glass processing process includes the following steps:
s101: placing optical glass to be processed, and placing the optical glass to be processed on a fixing tool of a polishing machine for fixing;
s102: coarse grinding, namely performing coarse grinding processing on the surface of the optical glass by using a polishing machine;
s103: fine grinding, after the coarse grinding size meets the requirement, using a pre-blended polishing solution to correct the surface shape under the conditions that the air pressure is 0 and the rotating speed is 5r/min, wherein the correction time is 40-60 min;
s104: and (4) quality inspection, wherein the product with the maximum angle error of 30 seconds, the maximum height error of 0.02mm and the face shape precision of 1/4@632.8nm is a qualified product, and warehousing the qualified product.
In S101, when the optical glass is fixed to a fixing tool of the polishing machine, the optical glass is fixed by vacuum adsorption, so that the product is ensured to be attached to the smooth surface of the tool, and an aperture cannot appear.
Wherein, the parallelism of the milled surface of the fine grinding is controlled within 0.003 mm.
Wherein the pH value of the polishing solution for fine grinding is 0.05.
Before S101, optical glass to be processed is placed, the precision of a polishing tool is verified, and the maximum angle error of the tool is controlled to be 5 seconds and the maximum height error is controlled to be 0.005 mm.
In a second embodiment, referring to fig. 1-2, a wedge-shaped ultra-thin optical glass processing method includes the following steps:
s101: placing optical glass to be processed, and placing the optical glass to be processed on a fixing tool of a polishing machine for fixing;
s102: coarse grinding, namely performing coarse grinding processing on the surface of the optical glass by using a polishing machine;
s103: fine grinding, after the coarse grinding size meets the requirement, using a pre-blended polishing solution to correct the surface shape under the conditions that the air pressure is 0 and the rotating speed is 5r/min, wherein the correction time is 40-60 min;
s104: and (4) quality inspection, wherein the product with the maximum angle error of 30 seconds, the maximum height error of 0.02mm and the face shape precision of 1/4@632.8nm is a qualified product, and warehousing the qualified product.
In S101, when the optical glass is fixed to a fixing tool of the polishing machine, the optical glass is fixed by vacuum adsorption, so that the product is ensured to be attached to the smooth surface of the tool, and an aperture cannot appear.
Wherein, the parallelism of the milled surface of the fine grinding is controlled within 0.003 mm.
Wherein the pH value of the polishing solution for fine grinding is 0.05.
Before S101, optical glass to be processed is placed, the precision of a polishing tool is verified, and the maximum angle error of the tool is controlled to be 5 seconds and the maximum height error is controlled to be 0.005 mm.
After the rough grinding is completed in S102, the optical glass is cleaned, and the cleaning step includes the following steps:
s201: pouring the prepared pickling agent into a funnel above the plastic container;
s202: placing optical glass in a plastic container and suspending the optical glass at a position right below a funnel;
s203: opening a valve of the funnel to enable the pickling agent to be uniformly poured on the rough grinding surface of the optical glass;
s204: wiping and cleaning the optical glass by using superfine fiber dust-free cloth;
s205: and (3) placing the optical glass in a closed space for drying.
In a third embodiment, referring to fig. 1-2, a wedge-shaped ultra-thin optical glass processing process includes the following steps:
s101: placing optical glass to be processed, and placing the optical glass to be processed on a fixing tool of a polishing machine for fixing;
s102: coarse grinding, namely performing coarse grinding processing on the surface of the optical glass by using a polishing machine;
s103: fine grinding, after the coarse grinding size meets the requirement, using a pre-blended polishing solution to correct the surface shape under the conditions that the air pressure is 0 and the rotating speed is 5r/min, wherein the correction time is 40-60 min;
s104: and (4) quality inspection, wherein the product with the maximum angle error of 30 seconds, the maximum height error of 0.02mm and the face shape precision of 1/4@632.8nm is a qualified product, and warehousing the qualified product.
In S101, when the optical glass is fixed to a fixing tool of the polishing machine, the optical glass is fixed by vacuum adsorption, so that the product is ensured to be attached to the smooth surface of the tool, and an aperture cannot appear.
Wherein, the parallelism of the milled surface of the fine grinding is controlled within 0.003 mm.
Wherein the pH value of the polishing solution for fine grinding is 0.05.
Before S101, optical glass to be processed is placed, the precision of a polishing tool is verified, and the maximum angle error of the tool is controlled to be 5 seconds and the maximum height error is controlled to be 0.005 mm.
After the rough grinding is completed in S102, the optical glass is cleaned, and the cleaning step includes the following steps:
s201: pouring the prepared pickling agent into a funnel above the plastic container;
s202: placing optical glass in a plastic container and suspending the optical glass at a position right below a funnel;
s203: opening a valve of the funnel to enable the pickling agent to be uniformly poured on the rough grinding surface of the optical glass;
s204: wiping and cleaning the optical glass by using superfine fiber dust-free cloth;
s205: and (3) placing the optical glass in a closed space for drying.
In the step S205, the drying is carried out in a vacuum drying mode, and the vacuum degree is 0.08 MPa.
In S205, before vacuum drying, the optical glass is placed in distilled water at the temperature of 60-65 ℃ for standing for 15-20 min, and then taken out for vacuum drying.
Wherein the pickling agent comprises the following components: 12-15 wt% of organic acid, 3-5 wt% of co-extrusion, 12-19 wt% of chelating agent, 1.5-2.8 wt% of surfactant, 0.7wt% of dispersant and the balance of water.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A wedge-shaped ultrathin optical glass processing technology is characterized by comprising the following steps:
step 1: placing optical glass to be processed, and placing the optical glass to be processed on a fixing tool of a polishing machine for fixing;
step 2: coarse grinding, namely performing coarse grinding processing on the surface of the optical glass by using a polishing machine;
and step 3: fine grinding, after the coarse grinding size meets the requirement, using a pre-blended polishing solution to correct the surface shape under the conditions that the air pressure is 0 and the rotating speed is 5r/min, wherein the correction time is 40-60 min;
and 4, step 4: and (4) quality inspection, wherein the product with the maximum angle error of 30 seconds, the maximum height error of 0.02mm and the face shape precision of 1/4@632.8nm is a qualified product, and warehousing the qualified product.
2. The wedge-shaped ultrathin optical glass processing technology as claimed in claim 1, wherein in the step 1, when the optical glass is fixed with a fixing tool of a polishing machine, the optical glass is fixed in a vacuum adsorption mode, so that a product is ensured to be attached to a smooth surface for the tool, and meanwhile, no diaphragm can appear.
3. The wedge shape ultra-thin optical glass processing technique according to claim 1, wherein the parallelism of the milled surfaces of the finish grinding is controlled within 0.003 mm.
4. The wedge shape ultra-thin optical glass processing technology as claimed in claim 3, wherein the pH value of the polishing liquid for fine grinding is 0.05.
5. The wedge-shaped ultrathin optical glass processing technology as claimed in any one of claims 1 to 4, characterized in that before the optical glass to be processed is placed in the step 1, the precision of a polishing tool is checked, and the maximum angle error of the tool is controlled to be 5 seconds and the maximum height error is controlled to be 0.005 mm.
6. The wedge-shaped ultrathin optical glass processing technology as claimed in claim 1, wherein after the rough grinding in the step 2 is completed, the optical glass is cleaned, and the cleaning step comprises the following steps:
step 1: pouring the prepared pickling agent into a funnel above the plastic container;
step 2: placing optical glass in a plastic container and suspending the optical glass at a position right below a funnel;
and step 3: opening a valve of the funnel to enable the pickling agent to be uniformly poured on the rough grinding surface of the optical glass;
and 4, step 4: wiping and cleaning the optical glass by using superfine fiber dust-free cloth;
and 5: and (3) placing the optical glass in a closed space for drying.
7. The wedge shape ultra-thin optical glass processing technology as claimed in claim 6, wherein in the step 5, the drying is performed by vacuum drying with a vacuum degree of 0.08 MPa.
8. The wedge-shaped ultrathin optical glass processing technology as claimed in claim 7, characterized in that in the step 5, before vacuum drying, the optical glass is placed in distilled water with the temperature of 60-65 ℃ for standing for 15-20 min, and then taken out for vacuum drying.
9. The wedge shape ultra-thin optical glass processing technology of claim 6, wherein the pickling agent comprises the following components: 12-15 wt% of organic acid, 3-5 wt% of co-extrusion, 12-19 wt% of chelating agent, 1.5-2.8 wt% of surfactant, 0.7wt% of dispersant and the balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011067107.XA CN112296765A (en) | 2020-10-05 | 2020-10-05 | Wedge-shaped ultrathin optical glass processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011067107.XA CN112296765A (en) | 2020-10-05 | 2020-10-05 | Wedge-shaped ultrathin optical glass processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112296765A true CN112296765A (en) | 2021-02-02 |
Family
ID=74488757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011067107.XA Pending CN112296765A (en) | 2020-10-05 | 2020-10-05 | Wedge-shaped ultrathin optical glass processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112296765A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640908A (en) * | 2021-08-26 | 2021-11-12 | 武汉正可科技有限公司 | Optical glass optical filter and grinding processing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000015551A (en) * | 1998-07-02 | 2000-01-18 | Sony Corp | Lens polishing device |
| CN101623843A (en) * | 2009-07-31 | 2010-01-13 | 昆山光爱电子材料有限公司 | Manufacturing method of ultrathin crystal plate of low-pass optical filter |
| CN101791779A (en) * | 2009-12-03 | 2010-08-04 | 北京有色金属研究总院 | Semiconductor silicon wafer manufacture process |
| CN102990503A (en) * | 2012-11-09 | 2013-03-27 | 中国电子科技集团公司第四十六研究所 | Polishing method applied to CdS wafer |
| CN105583734A (en) * | 2014-10-23 | 2016-05-18 | 无锡华冶钢铁有限公司 | Grinding fluid immediate preparing type automatic mechanical grinding method |
| CN106625178A (en) * | 2016-06-30 | 2017-05-10 | 天津市兰依科技股份有限公司 | Ultraprecision machining method for gem substrate based on abrasive material polishing pads |
| CN106811328A (en) * | 2017-01-13 | 2017-06-09 | 蓝思科技（长沙）有限公司 | A kind of acid cleaning agent for optical glass and its application method |
-
2020
- 2020-10-05 CN CN202011067107.XA patent/CN112296765A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000015551A (en) * | 1998-07-02 | 2000-01-18 | Sony Corp | Lens polishing device |
| CN101623843A (en) * | 2009-07-31 | 2010-01-13 | 昆山光爱电子材料有限公司 | Manufacturing method of ultrathin crystal plate of low-pass optical filter |
| CN101791779A (en) * | 2009-12-03 | 2010-08-04 | 北京有色金属研究总院 | Semiconductor silicon wafer manufacture process |
| CN102990503A (en) * | 2012-11-09 | 2013-03-27 | 中国电子科技集团公司第四十六研究所 | Polishing method applied to CdS wafer |
| CN105583734A (en) * | 2014-10-23 | 2016-05-18 | 无锡华冶钢铁有限公司 | Grinding fluid immediate preparing type automatic mechanical grinding method |
| CN106625178A (en) * | 2016-06-30 | 2017-05-10 | 天津市兰依科技股份有限公司 | Ultraprecision machining method for gem substrate based on abrasive material polishing pads |
| CN106811328A (en) * | 2017-01-13 | 2017-06-09 | 蓝思科技（长沙）有限公司 | A kind of acid cleaning agent for optical glass and its application method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640908A (en) * | 2021-08-26 | 2021-11-12 | 武汉正可科技有限公司 | Optical glass optical filter and grinding processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112296765A (en) | Wedge-shaped ultrathin optical glass processing technology | |
| CN109130040A (en) | Method for measuring clearance position of lens mold | |
| CN104525853A (en) | A method of eliminating deformation of a wax mould for an ultrathin elongated working blade of a turbine | |
| CN106249328A (en) | A kind of Abbe roof prism production technology | |
| CN104635315A (en) | Method for manufacturing opaque visible light prism component by gluing | |
| CN102508328A (en) | Method for producing ultrathin quartz crystal phase retardation plate | |
| CN110530353A (en) | A kind of alkali metal atom air chamber and its manufacturing method | |
| CN208246476U (en) | A kind of fixture of optics cold processing control lens center thickness | |
| CN117007395A (en) | Preparation method of microscopic analysis sample of ultra-high-performance concrete | |
| CN115213796A (en) | Die polishing method | |
| KR101379688B1 (en) | Manufacturing method of cover window for touch screen and camera lens for optical module | |
| CN203405625U (en) | Half pentaprism reticle structure | |
| CN110576342A (en) | Polishing method for improving surface shape precision yield of glass mirror, camera and electronic equipment | |
| CN205989225U (en) | Soft contact above disk frock | |
| CN102706285B (en) | For eliminating the device of optical interference effects in a kind of wave plate process | |
| CN103009210A (en) | Processing method of lens for UV (Ultraviolet) camera lens | |
| CN204913569U (en) | Work piece polishing dish contact State adjustable burnishing device | |
| CN105666281A (en) | Telescope lens polishing detection device and polishing detection method thereof | |
| CN105127880B (en) | A kind of Ultraprecise polished method of active control workpiece material cutting mechanisms transformation | |
| CN118654584B (en) | Optical equal thickness testing method for free-form surface transparent piece | |
| CN116242253B (en) | Underwater concrete apparent laser line three-dimensional scanning measurement method | |
| CN204725786U (en) | A kind of backboard mould | |
| CN209816284U (en) | Aspheric glass lens coating jig | |
| CN112936000A (en) | Nonmetal mechanical centering edging piecing devices based on 3D prints | |
| CN205133731U (en) | Wafer is improved generation anchor clamps for coating film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |