HOME >> BIOLOGY >> NEWS
New Machine Slashes Time, Cost To Make Unique Lenses

parts to a diameter of about an inch. Even before reaching the mass- production stage, companies often spend hundreds of thousands of dollars creating asphere prototypes the old-fashioned way; Golini expects that much of the demand for the new grinder will actually come from large companies that spend heavily on hand-crafted templates while developing new products.

"Since this new system will reduce initial tooling costs, it will make all plastic and glass molded aspheres more affordable, and it's much better suited to the task of producing high- precision aspheres than any of the previous techniques," Pollicove says.

A technician can just plunk a piece of glass into the new machine, plug the desired curvature of the final lens into the machine's computer, and let the of diamonds embedded in its two bronze grinding wheels go to work. Using a first-of-its-kind measuring system to ensure that precision shape requirements are met, the computer alternates between measuring the lens and manipulating the grinding wheels that sculpt it. A regular ball- bearing spindle spins the rough grinding wheel to quickly shape the lens, and then an advanced spindle that floats a fine grinding wheel on a cushion of air produces an almost polished finish. The machine's built-in measuring system can then automatically feed relevant data to a magnetorheological finishing device for a final round of ultra-smooth polishing. Total time required: roughly 15 to 30 minutes.

"We've incorporated several new technologies into this machine," says Kevin Uhlig, vice president of machinery systems at Bridgeport, Conn.-based Moore Tool Company, the firm that actually built the new asphere grinder. "It's the first machine to fully automate asphere production; earlier machines couldn't muster the precision needed to shape aspherical lenses. It's also the first to successfully tackle the final round of smoothing, typically done by hand."

The machining system, designed by a
'"/>

Contact: Steve Bradt
sbradt@admin.rochester.edu
716-273-4726
University of Rochester
7-May-1998


Page: 1 2 3 4

Related biology news :

1. Darwins Time Machine: Scientists begin predicting evolutions next step
2. Porous Silicon Joining Humans To Machines
3. Whitehead Receives $7 million NIH Grant To Build High-Speed Sequencing Machines
4. New Insights Into The Transport Machinery Of The Cell: A Single Protein Substitutes The Regulatory Machinery Specifying Endosome Fusion In Vitro
5. NIST Machine To Aid In Making Better Artificial Joints
6. Crystal Structure Of The Archaeal Chaperonin Thermosome, A Protein-Folding Machine, Determined
7. Prostate Cancer Switch May Yield Map Of Cancer Machinery, Targets For Drugs
8. Insights Into The Proteasome - A Fascinating Macromolecular Machine For Protein Degradation
9. Cooking And Salad Oils Could Lubricate Cars, Boats, Machines
10. Unique partnership between UH, FDA opens path for scientific exchange
11. Unique two-part macroemulsion offers new approach to cleaning up contaminated aquifers

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: