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Supplier: American Precision Glass Corp.
Description: We work with a variety of glass types that include borosilicate, crown, soda lime, filters, quartz, fused silica, radiation shielding, X-ray, and other specialties. Laser Engraving and Marking American Precision Glass now offers custom laser marking, an ideal permanent
- Capabilities: Coatings, Design, Grinding and Polishing, High Volume Production, Prototyping, Sizing and Shaping
- Location: North America, United States Only, Northeast US Only
- Optic Type: Filters, Laser Optics, Lenses, Mirrors, Prisms, Wedges, Windows
- Substrate: Glass, Other
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Supplier: Shanghai Optics
Description: with a metallic coating. BK7, Schott borosilicate glass, is high quality optical crown glass with very few impurities. These mirrors have a surface quality of 40-20, per military standard MIL-PRF-13830B. The clear aperture is guaranteed to be more than 90 percent of the
- Mirror Coatings: Bare Aluminum
- Mirror Materials: BK7 Glass, Optical Crown Glass
- Mirror Types: Spherical Mirror
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Supplier: Shanghai Optics
Description: images. They will, however, have a wider field of view. Coating and Substrate Convex Spherical Mirrors are manufactured from high quality BK7 Grade A optical glass, Corning Fused Silica 7980, JGS1, JGS2. BK7, Schott borosilicate-crown glass, has a high refractive index
- Mirror Coatings: Enhanced Aluminum, Protected Gold
- Mirror Materials: BK7 Glass, Fused Silica, Optical Crown Glass, UV Grade Fused Silica
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Supplier: Shanghai Optics
Description: as external or internal reflectors with a wide angle of incidence. Right Angle Mirror Substrate and Coatings Our right angle mirrors are manufactured from BK7, Schott optical borosilicate-crown glass, and have an enhanced aluminum, protected silver, or protected gold coating. Enhanced
- Mirror Coatings: Enhanced Aluminum, Protected Gold, Silver
- Mirror Materials: BK7 Glass, Optical Crown Glass
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Supplier: Shanghai Optics
Description: Schott Borosilicate crown glass is chemically stable amorphous glass and has a refractive index of 1.51680 at 587.5618 nm, at the yellow Helium line. It’s transmission range is 350nm to 2.5 µm, and it has uniform transmission throughout the visible range. BK7 has a Knoop
- Prism Material: BK7 Glass
- Prism Type: Roof
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Supplier: Newport MKS
Description: The 40540 Focusing Lens is used to focus a collimated beam from a light source onto a glass fiber. This 1.5 inch (38.1 mm) diameter plano-convex lens is made with Select quality Borosilicate Crown Glass (N-BK7/A). It has a 50 mm focal length and a 330 to 2200 nm range.
- Diameter / Length: 38.1 mm
- Lens Type: Spherical Lens
- Materials: BK7 Glass, Other
- Surface Quality: 60-40 Scratch / Dig, Other
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Supplier: Newport MKS
Description: The 40570 Focusing Lens is used with the 77259 Focusing Lens Assembly. It is a 1.5 inch (38.1 mm) diameter, Borosilicate Crown Glass, Plano-convex Lens with a 150 mm Focal Length. Plano Convex lenses are for collimated beams or high magnification. 330 to 2200 nm wavelength
- Diameter / Length: 38.1 mm
- Lens Type: Spherical Lens
- Materials: BK7 Glass, Other
- Surface Quality: 60-40 Scratch / Dig, Other
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Supplier: Newport MKS
Description: The 39225 Focusing Lens is used with the 77259 Focusing Lens Assembly. It is a 1.5 inch (38.1 mm) diameter, Borosilicate Crown Glass, Bi-convex Lens with a 75 mm Focal Length. Bi-convex lenses are for imaging with little change in magnification. 330 to 2200 nm wavelength range.
- Diameter / Length: 38.1 mm
- Focal Length: 74.8 mm
- Lens Type: Spherical Lens
- Materials: BK7 Glass, Other
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Supplier: Newport MKS
Description: The 39213 Focusing Lens is used with the 77330 Focusing Lens Assembly. It is a 1 inch (25.4 mm) diameter, Borosilicate Crown Glass, Bi-convex Lens with a 33 mm Focal Length. Bi-convex lenses are for imaging with little change in magnification. 330 to 2200 nm wavelength range.
- Diameter / Length: 25.4 mm
- Focal Length: 30.7 mm
- Lens Type: Spherical Lens
- Materials: BK7 Glass, Other
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Description: known as H-K9L is a ROHS-compliant borosilicate crown glass with superior optical excellence and the glass is fine annealed and polished to tight tolerances to meet the demanding tolerances. The most attractive advantages of N-BK7 are its high optical homogeneities and
- Materials: BK7 Glass, Other
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Supplier: Changchun Yutai Optics Co., Ltd.
Description: What is BK7 Lenses? BK7 lens is a lens made of BK7 optical glass, which is a common borosilicate crown glass. What is the application of BK7 Lenses? The main applications of BK7 lenses include: 1. Optical imaging systems: used in cameras, microscopes, telescopes and other
- Lens Application: Ultraviolet
- Materials: BK7 Glass, UV Grade Fused Silica
- Surface Flatness: ?/4
- Surface Quality: 40-20 Scratch / Dig
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Description: -compliant borosilicate crown glass with superior optical excellence and the glass is fine annealed and polished to tight tolerances to meet the demanding tolerances. The most attractive advantages of N-BK7 are its high optical homogeneities and high transmission to VIS
- Materials: BK7 Glass, Other
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Description: known as H-K9L is a ROHS-compliant borosilicate crown glass with superior optical excellence and the glass is fine annealed and polished to tight tolerances to meet the demanding tolerances. The most attractive advantages of N-BK7 are its high optical homogeneities and
- Antireflection Coating: Yes
- Focal Length: -60 mm
- Lens Type: Cylindrical Lens
- Materials: BK7 Glass, Other
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Description: known as H-K9L is a ROHS-compliant borosilicate crown glass with superior optical excellence and the glass is fine annealed and polished to tight tolerances to meet the demanding tolerances. The most attractive advantages of N-BK7 are its high optical homogeneities and
- Focal Length: -75 mm
- Lens Type: Cylindrical Lens
- Materials: BK7 Glass, Other
- Surface Flatness: ?/2
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Supplier: Changchun Yutai Optics Co., Ltd.
Description: The nd data of H-K9L is 1.5168,vd data is 64.20. H-K9L is the alternative for N-BK7.H-K9L(N-BK7) is a RoHS-compliant borosilicate crown glass. It provides excellent transmission in the visible and near infrared portions of the spectrum(350 nm - 2.0 µm). It is typically chosen
- Parallelism or Wedge Angle: 180 arcmin
- Surface Flatness: λ/10
- Surface Quality: 60-40 Scratch / Dig
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The nd data of H-K9L is 1.5168,vd data is 64.20. H-K9L is the alternative for N-BK7.H-K9L(N-BK7) is a RoHS-compliant borosilicate crown glass. It provides excellent transmission in the visible and near infrared portions of the spectrum(350 nm - 2.0 µm). It is typically chosen whenever the (read more)
Browse Optical Windows Datasheets for Changchun Yutai Optics Co., Ltd.
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A Model of Structural Relaxation in Glass
Ritland3convincingly demonstrated the memory effect in a borosilicate crown glass by reheating “rate-cooled’’ and “soaked” specimens having identical fictive temperatures.
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Cracking and the Indentation Size Effect for Knoop Hardness of Glasses
The aluminosilicate glass was a heat-shock- resisting glass with the ability to withstand higher temperatures than the borosilicates.22 The borosilicate crown glass test piece was an optical-grade glass with much greater network modifier content than the borosilicate glass, yet …
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Fracture Mechanics of Ceramics
The borosilicate crown glass test piece was a 76 mm diameterÂ5:6 mm thick polished disk cut from a larger block.
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Dictionary of Ceramic Science and Engineering
When fused they produce glasses with lower fusion temperatures and a longer working viscous range that makes them useful; Pyrex glass is an example. borosilicate crown glass . Noun.
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Dictionary of Gems and Gemology
® Acceptor. boron nitride; ® borazon. borosilicate crown glasses ; ® borosilicate glasses. borosilicate glass; colorless to pale blue, very hard glass of sodium, boron, silica glass.
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TRANSFORMATION REGION OF GLASS *
FIG.3.-Measurements obtained on a borosilicate crown glass ; curves show refractive index and coefficient of ex- pansion as function of temperature from which a well- annealed glass was quenched.
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Relation Between Refractive Index and Density of a Glass at Constant Temperature
Data are presented on the changes in the room‐temperature refractive index and density of a borosilicate crown glass produced by different heat‐treatments.
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Limitations of the Fictive Temperature Concept
Abstr., 1954,-September, p. 1g9b: 3 H. N. Ritland, “Density Phenomena in Transformation Range of a Borosilicate Crown Glass ,” J .
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Extended Glass‐Transition Range
Representative samples of borosilicate crown glass before and after spherule formation (X27).
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Fracture of Glass in Vacuum
(A) Borosilicate crown glass , (B)61%lead glass, (C) soda-lime silicate glass, and (0)aluminosilicate glass.