Special glasses :
20 products
CALCIUM FLUORIDE CRYSTALS
Calcium Fluoride Crystals
Product Information
Calcium fluoride crystals grown from purest (synthetic) raw material are required for illumination and projection optics in 248 nm, 193 nm and
193 nm immersion micro / lithography technologies and laser applications.
Benefits
Calcium fluoride crystals complete the application range of optical materials from VUV to IR with very good transmission ranging from 130 nm to 9 ìm due to its
High projection optic quality
High production volume
High purity
High laser durability
High refractive index homogeneity
Excellent UV transmittance
Low stress birefringence
Key Applications
The very high laser damage threshold of calcium fluoride makes it the first choice material for:
Excimer laser optics
Beam delivery
Illumination systems operating at 45nm node
Optical systems in lithography, astronomy, photography, HDTV zoom lenses, microscopy
Sensors (especially IR-spectrum)
Spectrometers
Medical lasers
Forms of Supply
SCHOTT Lithotec offers calcium fluoride components and blanks with different crystal orientations (, , random or others on request) along with different surface qualities (raw, cut, ground or polished), depending on the individual requirements.
Specifications
SCHOTT Lithotec's expertise allows fabrication of CaF2 blanks in diameters up to 350 mm and with thicknesses exceeding 100 mm and highest transmission from 130 nm to 9 ìm (depending on sample thickness).
Quality Assurance
There is 100% control of internal quality, including examinations of stress birefringence, striae, bubbles and inclusions, scattering, laser durability and transmittance.
Any Related Information
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RWE SCHOTT Solar Groupe - Schott
MINIATURE CCD/CMOS LENS
Miniature CCD/CMOS lenses are designed to provide optimal image performance for a variety of applications using CCD/CMOS imaging sensors. Typical consumer product applications include: digital
cameras, PC cameras, cell phone and PDA cameras, security cameras, etc. Typical industrial applications include: inspection, bio-metric security, scanning, bar-code reading, etc.
Our CCD/CMOS lenses are mostly multi-element designs that are computer optimized to provide the optimal trade-offs between various performance parameters and cost. We use plastic, glass and glass/plastic hybrid elements depending on the performance and environmental requirement. Glass lenses, in general, provides higher image quality and are more stable environmentally than plastic or hybrid lenses.
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Sunex
COATINGS - SCHOTT AG
Coatings
Product Information
SCHOTT Advanced Optics performs standard and custom-designed coatings. We deposit thin films onto glass and other substrates for spectral wavelengths between 200
and 3000 nm.
Important coating types include:
Reduce reflection: Anti-reflective (AR) coating, spectral range in UV, VIR, IR
Increase reflection: mirror coating (metallic or dielectric)
Beam splitters
Polarizers
Neutral density filter coating
Laser coating with high resistance to flux
Demist coating RIA 2
Bandpass Coating
Hard coatings do not need any additional protection, because the layers usually consist of very stable metal oxides. ”Soft coatings” usually require additional measures to protect the filters. This can be achieved by a supplementary cementing with a suitable glass.
Within certain areas of the UV spectrum it is not possible to use optical elements due to the inherent absorption involved. In such cases the coated substrates are fitted into appropriate mounts and protected by suitable glass.
Benefits
SCHOTT Advanced Optics is a trusted supplier of coated products due to its long experience and reliable process stability. With our expertise, we can provide:
Different types of coating on substrates of different sizes and materials
Different values for half width (HW)
Continuously alterable half widths (i-line filters, band passes)
Ion plating: specific temperature stability possible
Key Applications
Coatings are often required for substrates used in
Optical systems
Laser systems
Illumination
Space applications
Defense applications
Medical applications
Industrial sectors.
Materials Used
All types of materials can be coated:
Borosilicate glass
Contrast enhancement glass types, etc.
Filter glass
Fused silica LITHOSIL®
Optical glass
ZERODUR® glass ceramic
Forms of Supply
Our standard forms of coated substrates range from 1 mm to 400 mm. Larger dimensions, such as 900 x 900 mm, AR and Aluminum mirror plates are also available.
Specifications
We can coat substrates with diameters between 1 mm and 400 mm. The spectral range is between 200 and 3000 nm. As a very broad range of specifications can be met, please use the bandpass-, longpass-or shortpass-filter questionnaire in the interference filter catalog.
Ion Plating (IP)
Plasma Assisted Deposition with the Leybold-Advanced Plasma Source (APS)
Cold electron beam evaporation
Quality Assurance
We measure the quality of our coating with a spectrophotometer (measurement between 200 nm and 3000 nm), and also conduct direct or indirect monochromatic monitoring with quartz crystal and optical thickness measurements.
We can also deliver test glasses upon request.
Any Related Information
You could be interested in our low Tg optical glasses for precision molding.
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RWE SCHOTT Solar Groupe - Schott
COLORED AND FILTER GLASS
Color Filters
Product Information
Colored and filter glass stands out due to its selective absorption in the visible wavelength range. The filters appear to be colored if their filter effect
lies within the visible light spectrum.
SCHOTT Advanced Optics, one of the leading glass manufacturers with a product range equaled by no other manufacturer world-wide, can provide any size, shape and quality required by the customer.
In order to develop an assortment of filter glasses, some with extreme filter properties, in the largest possible spectral area, numerous colorants with different concentrations and many different base glasses have been developed. Our filter glasses are classified into the following filter groups:
- UG: Black and blue glasses, UV transmitting
- BG: Blue, blue-green, and multi-band glasses
- VG: Green glass
- GG: Nearly colorless to yellow glasses, IR transmitting
- OG: Orange glasses, IR transmitting
- RG: Red and black glasses, IR transmitting
- NG: Neutral density glasses with uniform attenuation in the visible range
- N-WG: Colorless glasses with different cutoffs in the UV, transmitting in the visible range and the IR
- KG: Virtually colorless glasses with high transmission in the visible and effective absorption in the IR (heat protection filters)
Band pass filters - selectively transmit a desired wavelength range
Long pass filters - Block an undesired shorter wavelength range
Short pass filters - Block an undesired longer wavelength range
Neutral density filters - Exhibit nearly constant transmission, especially in the visible range
Benefits
Optimal filter solutions can be offered. All filter glass types can be used as substrates for thin film coating to manufacture so-called interference filters. Thus the specific advantages of the individual components (absorption properties of optical glass filters and the reflection properties of interference coatings) can be combined in one optical filter.
Advanced Optics is also the preferred supplier of colored glass filters because of its:
Experience with high demands on surface quality, fitting errors, small thickness and small thickness tolerances when manufacturing complex types of glass
In-house optical and protection coating capabilities
Ability to accommodate special requirements via close collaboration and development efforts between our customers and our application engineering team
Key Applications
Optical glass filters are important components in transmitting and blocking certain specific spectral ranges and are used in widely differing application areas:
Industrial measurement
Regulation
Control technology
Analytical measurement methods in production, research and development
Environmental protection
Medicine
Military
KG filters:
Heat absorption filters / heat protection filters (photocopy machines, slide projectors)
Components in protective glasses
Laser safety (windows for lasers)
Surgery lighting (operating room lamps)
Dental lighting
Periscopes (tanks)
N-WG, GG, OG and RG filters:
Long pass filters
Blocking filters for shorter wavelengths (interference band pass filters)
OG filters:
Airport lighting
Rain sensors (as substrate)
Laser safety
RG filters:
Sensor applications
Infrared lighting technology (object protection)
(Night) surveillance systems
Bar code reader
Airport lighting
Laser safety
UG filters:
UV illumination (molecular, finger print, bank note identification)
UV excitation creating visible luminescence
Fluorescence microscopy (immuno reactions)
Sterilization equipment
BG filters:
Silicon receivers (sensitivity correction)
Video cameras (matching to human eye response)
Airport lighting
Eye sensitivity matching
Laser safety
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RWE SCHOTT Solar Groupe - Schott
