| original Tessar from Zeiss collection image by Uwe Kulick(Image rights) |
ZEISS CLARUS 700 was designed as a comprehensive ultra-widefield retinal camera for eye care specialists to capture ultra-widefield images in true color, with unsurpassed image quality, and a complete suite of modalities including fluorescein angiography. True Color imaging using Broad Line Technology. Jan 27, 2021 The global 4K medical imaging market was valued at $822.1 million in 2019 and is anticipated to reach $2,399.9 million by 2030, growing at a CAGR of 12.2% during the forecast period 2020-2030.
The Tessar is a camera and projection lens designed by Paul Rudolph, working for the Carl Zeiss Jena company, in 1902. It is normally used as a standard lens, and versions of it have been fitted to many millions of cameras.
The design consists of four glass elements in three groups; the front element is positive, bi-convex (with the rear almost flat), the central a negative bi-concave and, following an aperture, at the rear is a cemented doublet of one plano-concave and one bi-convex element.
The design is often described as a 'modified Cooke triplet'; this is an easy way to explain the construction of the Tessar to a person familiar with a triplet lens. However, the design is actually a development of Rudolph's earlier lenses.[1] Rudolph's US Patent for the Tessar states that the design combines features from two earlier Zeiss lenses, one consisting of air-spaced groups facing each other (the Unar), the other of two cemented groups (the Zeiss Anastigmat, forerunner of the Protar).[2]
| Cross-section of a 50mm f2.8 Tessar, with front element on the left. (for 35mm, M42 fitting) by AWCam(Image rights) |
- ZEISS VISUCAM fundus cameras, with a 24-megapixel sensor and revolutionary ZEISS optics, produce brilliant, ultra-high resolution, detail-rich images to effectively aid in diagnosing and monitoring a broad range of eye diseases – from glaucoma and diabetic retinopathy to macular degeneration (AMD).
- Item 2 carl zeiss meditec ff450 plus retinal imaging fundus camera% (233686) 2 - carl zeiss meditec ff450 plus retinal imaging fundus camera% (233686) $382.52 +$495.00 shipping.
- Carl Zeiss lenses and ICA cameras were imported in Japan in the 1920s by the subsidiary company Carl Zeiss Gōshi-gaisha (カールツァイス合資会社). It became Carl Zeiss K.K. (カールツァイス㈱) at some time, and imported the Zeiss Ikon cameras in the 1930s.
| Cut-away diagram of a Tessar scanned by Uwe Kulick(Image rights) |
The first patented design is for an f/5.5 lens.[3] This design was not made commercially, however; the first Tessars offered for sale were an f/6.3, and an f/10 apochromatic lens (that is, one corrected to give the same focus at three wavelengths);[4] developments in design allowed f/2.8 by 1930.
In addition to production by Carl Zeiss, the Tessar name and design (under license) was used in the production of numerous lenses by Bausch & Lomb (Rochester), Ross (London) and Krauss (Paris). Carl Zeiss opened a factory in Mill Hill, London, in 1909 producing binoculars and later some large format Tessar lenses, marked Carl Zeiss (London). With the outbreak of WWI the company was controlled by the British Government and continued manufacture until being sold to Ross in June 1917, subsequent lenses were marked Ross Tessar.
The Tessar design has been widely copied by nearly all major optics companies. By 2002, Carl Zeiss, Inc. had produced over five million Tessar lenses, and they estimated the total number of Tessar formula lenses at more than 150 million.[5]
A very partial list includes:
- Agfa Solinar
- Asahi/Pentax Macro-Takumar 50mm f/4
- Bausch & Lomb Tessar (under license)
| Tessar Series 1c Pat Feb 24, 1903 made by Bausch & Lomb image by Nesster(Image rights) |
- Canon 50mm FL f/3.5, 38mm FLP, 50mm f/2.8 and f/3.5(RF), 35mm f/3.5(RF)
- Carl Zeiss Jena Tessar
- Carl Zeiss (London) Tessar
- Carl Zeiss (West Germany) Opton Tessar, Tessar
- Dallmeyer Dalmac, Perfac, Serrac
- Ernemann Ernon
- FED/KMZIndustar
- Ilex Paragon
- Kodak Anastigmat, Ektar (some are Plasmats or Dialytes)
- Konica Macro-Hexanon AR 55 mm f/3.5
- Krauss-Zeiss Tessar (under license)
- Leitz Elmar
- Mamiya Press lenses - 100mm f/3.5, 127mm f/4.7, 150mm f/5.6
- Meyer Primotar
- Minolta Rokkor TLR
- Minox Minoxar
- Nikon 45mm GN Nikkor, El-Nikkor 50mm f/4
- Olympus in many of their compact cameras including the Trip 35 (40mm f/2.8) and mju series.
| Tessar on Ikonta image by Mario Groleau(Image rights) |
- Osaka Commercial (Large Format)
- Plaubel Anticomar
- Rodenstock Ysar, Rogonar
- Ross Tessar (under license) Clapham Common factory
- Ross (Mill Hill) Tessar - produced in the former Carl Zeiss (London) factory.
- Schneider Xenar, Comparon
- Steinheil Cassar
- Taylor & Hobson Apotal, Ental
- Voigtlander Heliostigmat, Skopar
- Wollensak Velostigmat, Raptar
- Yamasaki Congo Commercial (large Format)
- Yashica Yashinon TLR, Yashica T AF
Notes
- ↑Kingslake, Rudolph, A History of the Photographic Lens, Academic Press, (1989). 'It is certain that the Tessar was not a modified Cooke Triplet, as the series of steps followed by Dr. Paul Rudolph in going from the Anastigmat to the Tessar are well established, but for some of the later designs it is not always clear whether they should be regarded as modified Tessars or modified Triplets.'
- ↑US Patent 721240, Photographic Objective, filed July 1902 and granted February 1903 to Paul Rudolph and the Carl Zeiss company; describing an f/5.5 Tessar design; at Espacenet, the patent search facility of the European Patent Office. The patent cites two earlier patents: US Patent 444714, Photographic Objective, filed April 1890 and granted January 1891 to Rudolph and the Carl Zeiss company, describing several lenses made up as two cemented groups of two or three glass elements (one of these designs was commercially produced as the Zeiss Anastigmat); and US Patent 660202, Photographic Objective, filed January 1900 and granted October 1900 to Rudolph and the Carl Zeiss company, describing several designs using air-spaced glass elements (one of the diagrams includes a cemented pair). One of these designs, with four elements, was produced as the Unar; see Greenleaf (cited below), p70-1 and 82-4.
- ↑Austrian Patent 13124, Sphärisch, chromatisch und astigmatisch korrigiertes Objektiv (spherically-, chromatically- and astigmatically-corrected lens), filed June 1902 and granted March 1903 to the Karl (sic) Zeiss company of Jena, describing an f/5.5 Tessar design, at Espacenet; also US Patent 721240, cited above, which is the English-language equivalent. The database at Espacenet does not appear to have the German patent.
- ↑Greenleaf, Allen R. (1950) Photographic Optics, Macmillan, New York, p77-82.
- ↑Innovation – The Magazine from Carl Zeiss', Issue 11, Carl Zeiss, Inc.
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DUBLIN--(BUSINESS WIRE)--The 'Global 4K Medical Imaging Market: Analysis and Forecast, 2020-2030' report has been added to ResearchAndMarkets.com's
The global 4K medical imaging market was valued at $822.1 million in 2019 and is anticipated to reach $2,399.9 million by 2030, growing at a CAGR of 12.2% during the forecast period 2020-2030.
The global 4K medical imaging market is currently witnessing a significant change in the market landscape. There is a rising investment in the development of healthcare infrastructure, increasing evidence for efficient and promising results in treatment and diagnosis assistance. Moreover, there is an extensive entry of emerging players developing advanced imaging and visualization systems into the healthcare space. All these predominant factors have led to a significant rise in sales of 4K medical imaging systems across the globe.
Global 4K Medical Imaging Market Forecast, 2020-2030
The increasing demand for superior visualization quality for medical field, and availability of technologically advanced products in the field of high-definition medical imaging, and the increasing incidences of chronic health conditions have driven the growth of the global 4K medical imaging market, huge R&D investments, among others, are the major factors fueling the market growth. In addition to these factors, there are significant challenges and restraints, which are restricting market growth.
These challenges include the physicians' reluctance toward the adoption of advanced technologies such as 4K imaging. Hence, it is anticipated that these trends will have a significant impact on the 4K medical imaging market in the next five years, and the market will grow multifold.
Competitive Landscape
The global 4K medical imaging market consists of numerous large-scale as well as small-scale manufacturers and vendors. Presently, the manufacturers in the market have an ample number of opportunities to expand their offerings and establish a strong foothold in the market.
During January 2015-November 2020, the market witnessed approximately 38 partnership, alliance, and business expansion, two regulatory and legal activities, 49 new offerings, and five mergers and acquisitions in the past five years (2015-2020). New offerings were among the most frequently followed strategies that were incorporated by numerous players to establish a strong foothold in the market.
Most of the manufacturers in the market are incorporating collaborations and partnerships with not only other companies but also the university and research institutions as the key strategies to develop novel 4K medical imaging systems and attain a strong financial position in the market.
Key Topics Covered:
1 Product Definition
2 Scope of Research Study
3 Research Methodology
4 Competitive Landscape
4.1 Key Developments and Strategies
4.1.1 Regulatory and Legal
4.1.2 New Offerings
4.1.3 Partnerships, Alliances, and Business Expansions
4.1.4 Mergers and Acquisitions
4.2 Market Share Analysis
4.2.1 4K Display Monitors
4.2.2 4K Camera Systems
4.2.3 4K Advanced Visualization Systems
4.3 Growth-Share Analysis
4.3.1 Product Type
4.3.2 Region
5 Industry Insights
5.1 Legal Regulations
5.1.1 U.S.
5.1.2 European Union (EU)
5.1.3 China
5.1.4 Japan
5.2 Impact of COVID-19
5.3 Awaited Technological Developments
5.3.1 Emergence of 8K Technology in Medical Imaging Market
5.3.2 Holographic Medical Imaging - From Humble 2D Beginnings to a Holographic Future
6 Market Dynamics
6.1 Impact Analysis
6.2 Market Drivers
6.2.1 Increasing Demand for Superior Visualization Quality for Medical Imaging
6.2.2 Advantages of 4K Ultra High Definition (UHD) Over Full High Definition (FHD)
6.2.3 Availability of Technological Advanced Products in the Field of High-Definition (HD) Medical Imaging
6.3 Market Restraints
6.3.1 High Capital Cost
6.3.2 Requirement of High-Speed Connectivity
6.3.3 Availability of Low-Cost Refurbished Medical Device
6.4 Market Opportunities
6.4.1 Development of 8K Imaging Modalities
6.4.2 Slim and Flexible Design for Space Saving
6.5 Market Trends
Carl Zeiss Imaging Cameras Digital Cameras
6.5.1 Growing Adoption of Hybrid Operating Rooms (ORs)
6.5.2 Merging Products of Different Companies into a Single Unit Product
7 Global 4K Medical Imaging Market Scenario
7.1 Global 4K Medical Imaging Market Outlook, 2019-2030
7.2 Key Findings
7.3 Assumptions and Limitations
8 Global 4K Medical Imaging Market (by Product Type), 2019-2030
8.1 Market Overview
8.2 4K Medical Displays
8.2.1 Overview
8.2.2 Market Size and Forecast
8.2.3 Global 4K Medical Displays Market (by Resolution Type)
8.2.3.1 4K UHD (3840 x 2160) Medical Displays
8.2.3.2 4K DCI (4096 X 2160) Medical Displays
8.2.4 Global 4K Medical Displays Market (By Panel Size)
8.2.4.1 28' and Below Displays Panels
8.2.4.2 28'-54' Displays Panels
8.2.4.3 55' and Above Displays Panels
8.3 4K Camera Systems
8.3.1 Overview
8.3.2 Market Size and Forecast
8.3.3 Global 4K Medical Camera Systems Market (by Components)
8.3.3.1 Endoscopic Cameras
8.3.3.2 Microscopic Cameras
8.3.3.3 OR Cameras
8.3.3.4 Camera Control Units (CCUs)
8.3.3.5 Medical Recorders
8.4 4K Advanced Visualization Systems (Microscopic Systems)
8.4.1 Overview
8.4.2 Market Size and Forecast
Carl Zeiss Imaging Cameras Night Vision
9 Global 4K Medical Imaging Market (by Region), 2019-2030
9.1 Market Overview
10 Company Profiles
- B. Braun Melsungen AG
- Barco NV
- Carl Zeiss Meditec AG
- Conmed Corporation
- EIZO Corporation
- Ikegami Tsushinki Co., Ltd.
- Karl Storz SE & Co. KG
- Leica Microsystems AG (Danaher Corporation)
- LG Electronics
- Medtronic plc
- Novanta, Inc.
- Olympus Corporation
- Samsung Electronics Co., Ltd.
- Sharp NEC Display Solutions, Ltd.
- Siemens Healthineers AG
- Smith & Nephew plc
- Sony Corporation
- Steris plc
- Stryker Corporation
- Zimmer Biomet Holdings, Inc.
Carl Zeiss Imaging Cameras Wireless
For more information about this report visit https://www.researchandmarkets.com/r/mtqs68