How lenses are Leicester!

How lenses are Leicester!
A tour of the factory is a wonderful insight into the production of these instruments.
We start with the raw material. With over 100 types of glass to choose from Cooke select a pre moulding depending on the lens model.
We move into the main building now and are greeted by the industrial sound of machines at work. The first stop for our glass is the CNC (Computer Numerically Controlled) machines. These are high precision machines which grind the glass establishing the optical requirements for the lens.
From here it’s a short journey next door to the polishing area. The glass elements are held on the base of the polisher and are slowly polished by a rotating robotic arm. One element at a time is held although due to the design of the polishing mount several elements can be held at once if needed.
There is a rack full of polishing moulds for the many different shapes of Cooke lenses, the skilled craftsmen select the shape depending on the curvature required.
Aspherical lens, with their different geometry, take a different route through this area.
At all times throughout the factory you are faced with state of the art technology working in perfect synergy with Victorian aged machines from the early 20th century.
Coatings are applied before the final grinding takes place, at all times throughout the process the elements are constantly measured, monitored and cleaned.
The edges of the elements are sprayed with black epoxy paint, if they were left clear then light would create reflections and ghosting between the elements.
With the element completed it’s now time to assemble the lens. The metal work and on average the 12 elements required for an S4 lens are assembled in the “fitting” room. It’s a quiet calm atmosphere in here, no industrial noise with a very “hand built” feel to it all.
Once assembled it is taken apart, totally stripped down, for cleaning and washing before being carefully reassembled in a dust free room.
The focus is checked for each increment with the scales then engraved specifically for that lens. Cooke /i lenses (we’ll come on to those later) are computer soak tested to continuously monitor readouts of metadata that will be used in post production.
After around 3 month (given normal assembly schedules) from leaving the raw moulding store the finished hand crafted lens is ready for packaging, shipping and production!

Tags: cooke | iss027 | leicester | glass | cnc | coatings | assembly | factory | N/A
Contributing Author N/A

Read this article in the tv-bay digital magazine
Article Copyright tv-bay limited. All trademarks recognised.
Reproduction of the content strictly prohibited without written consent.

Related Interviews
  • Cooke Optics technology at IBC 2014

    Cooke Optics technology at IBC 2014

  • Cooke Optics talk anamorphic at IBC 2014

    Cooke Optics talk anamorphic at IBC 2014

  • Cooke Optics on BroadcastShow LIVE at IBC 2013

    Cooke Optics on BroadcastShow LIVE at IBC 2013

  • Cooke Optics at BVE 2012

    Cooke Optics at BVE 2012

  • Cooke at IBC2011

    Cooke at IBC2011

  • New Filters from Schneider Optics at NAB 2018

    New Filters from Schneider Optics at NAB 2018

  • Pixel Power at NAB 2014

    Pixel Power at NAB 2014

  • Pixel Power on BroadcastShow LIVE at IBC 2013

    Pixel Power on BroadcastShow LIVE at IBC 2013

  • Pixel Power at NAB 2013

    Pixel Power at NAB 2013

Related Shows
  • Bubble and Squeak: Live and Loud from Monday at IBC 2013

    Bubble and Squeak: Live and Loud from Monday at IBC 2013

Switching to Internet Based Distribution
Chris Clark

"An IP status check for the broadcast industry", "Resistance is futile", "IP points the way forward for the broadcast industry"...

Yes, we've read the headlines too. But rather than force you into submission, scare you, or leave you feeling like you have no other choice, we want to give you the information that helps you to make a sensible decision about Internet-based distribution.

So what’s stopping you from making the switch right now?

Tags: iss135 | ip | internet | distribution | cerberus | Chris Clark
Contributing Author Chris Clark Click to read or download PDF
21st Century Technology for 20th Century Content
James Hall A big challenge facing owners of legacy content is rationalising and archiving their tape and film-based media in cost effective and efficient ways, whilst also adding value. Normally the result of this is to find a low cost means of digitising the content – usually leaving them with a bunch of assets on HDD. But then what? How can content owners have their cake and eat it?
Tags: iss135 | legacy | digitising | digitizing | archive | James Hall
Contributing Author James Hall Click to read or download PDF
Future proofing post production storage
Josh Goldenhar Advancements in NVMe (Non-Volatile Memory Express), the storage protocol designed for flash, are revolutionising data storage. According to G2M Research, the NVMe market will grow to $60 billion by 2021, with 70 percent of all-flash arrays being based on the protocol by 2020. NVMe, acting like steroids for flash-based storage infrastructures, dynamically and dramatically accelerates data delivery.
Tags: iss135 | nvme | sas | sata | it | storage | post production | Josh Goldenhar
Contributing Author Josh Goldenhar Click to read or download PDF
Your two week editing future
Alex Macleod

So here we are - January again! Usually a good time to reflect on the year just gone by, and a good time to look forward to the coming months as the new year begins.

When I was reflecting on my 2018, and when thinking about what to write for my first article for Kit Plus - I kept coming back to one theme - organisation.

Tags: iss135 | editing | mediacity training | premiere pro | dit | Alex Macleod
Contributing Author Alex Macleod Click to read or download PDF
Test, Measurement and Standards
Alan Wheable The Alliance for IP Media Solutions (AIMS), is a non-profit trade alliance that fosters the adoption of one set of common, ubiquitous, standards-based protocols for interoperability over IP in the media and entertainment, and professional audio/video industries.
Tags: iss135 | omnitek | aims | SNMP | hdr | ai | Alan Wheable
Contributing Author Alan Wheable Click to read or download PDF