Roof Prism
A roof prism is a reflective optical prism to make two cross beams be parallel with each other. It contains a section where two faces meet at a 90 angle. These two 90 faces resemble the roof of a building, giving this prism type its name. Reflection from the two 90�° faces returns an image that is flipped laterally across the axis where the faces meet.
In some cases, passing through the prism, the image is both deflected right-to-left and top-to-bottom. The hypotenuse of the prism utilizes total internal reflection (TIR) to reflect the image through the prism. Polarization states may become rotated during reflection.
As a rich experienced manufacturer, substrate material in Photonchina can be chosen from all optical glasses (N-BK7, for instance), Fused Silica, Si, ZnSe, ZnS, CaF2, MgF2 etc.
Sunday Optics provides many kinds of roof prisms including Schmidt Roof Prism Lehmann Roof Prism Abbe Roof Prism Penta Roof Prism and Combined Roof Prism, etc. Lehamann Prism Material: Optical glass, H-K9L, Quartz Size:5-300mm Angle Tolerance:3 Size Tolerance:+/-0.05mm Coating: AR BBAR Metal
Achromatic Waveplate Achromatic waveplate is made from two different substrate materials such as crystal quartz and magnesium fluoride. For the single material,waveplateâ??s working wavelength is very limited because of the dispersion of the material. But Achromatic Waveplate uses two different kinds of materials,with the different dispersion, such waveplate is not sensitive to the wavelength change. Dual Wavelength Waveplate Dual wavelength waveplate is a special type of multiple waveplate that provides a specific retardance at two different wavelengths, itâ??s particularly useful when used in conjunction with other polarization sensitive components to separate coaxial laser beams of different wavelength. It is widely used to improve conversion efficiency in solid double frequency laser device. Polarization Rotator Due to the rotation activity of natural quartz crystal, it also can be used as polarization rotators so that the plane of input linearly polarized beam will be rotated at special angle which is determined by the thickness of quartz crystal.
Wavepalte Types: Photonchinas waveplates include octadic waveplate (1/8 waveplate),quarter waveplates(1/4 waveplate), half wave plates(1/2 waveplate) and full waveplate Both circular aperture and quadratic aperture are available. Photonchinaâ??s waveplate can transmit light and modify its polarization state without attenuating, deviating, or displacing the beam.It is ideal for applications requiring high damage thresholds and retardation stability over temperature change, such as for use with lasers or infrared light sources.
The DS A and B automatic level are designed for high precision of surveying applications,such as construction project,engineer of mine,road and bridge etc. DS A and B features include: *Magnetic damping compensator with heavy pendulum,super stable damping effect and high precision of setting accuracy even under harsh working environments. *Large roof prism,super clear imaging,minimum focusing distance
expertbinocular * com Product Info for Kenko Lens2scope Adapter for Nikon F Mount (Angled View) Kenko black Lens2scope Adapter for Nikon F Mount is a simple accessory that converts any Nikon F Mount lens into a spotting scope. Its lightweight body houses a compact roof prism, lenses, and an eyepiece just like a traditional spotting scope and with the lens is attached, the whole system acts as a spotting scope. This model features an angled eyepiece that is set at a 45�° angle for more comfortable viewing while sitting, standing or laying. Kenko K-LS10-NFAB Specs Prism System Roof prism Focal Length 10 mm Apparent Field of View 42�° Eye Relief 20 mm Dimensions 7.1 x 4.3 x 3.1" / 18.0 x 11.0 x 8.0 cm Weight 6.5 oz / 185.0 g Packaging Info Package Weight 0.635 lb Box Dimensions (LxWxH) 6.1 x 4.35 x 3.5"
I. Product features: Major focus handwheel design, plug and pull type objective lens dust cover; Using ergonomic design, the design is compact and fashionable, portable and lightweight You can watch it alone, or take photos and videos by connecting your mobile phone with a connecting ring. Full multi-layer coating BAK-4 roof prism, stable imaging, clear color; IPX6 nitrogen-filled waterproof, durable; Application fields: outdoor tourism, field exploration, sports events, concert, electric power safety inspection, forestry investigation, security and police, military patrol, industrial inspection, navigation observation, archaeological research, railway selection, land and resources investigation, etc. II. Product parameters: Multiple: 10 x Objective lens diameter: 42mm Prism type: BAK4 Number of lens sets: 8 pieces and 6 sets Lens coating: FMC Focus system: medium Exit pupil diameter: 4mm Exit pupil distance: 15.2mm View: 5.8 Field of view in km: 102m Latest focal length: 2m Relative brightness: 18.23 Evening Index: 20.4 Diopter: �±5 Eyepiece distance: 56-74mm Nitrogen - filled waterproof: IPX6 nitrogen - filled waterproof Mesh structure: knob Size: 127 x53x150mm Weight: 580.7 g Tripod: Supported (optional, universal camera tripod interface) Accessories: telescope, eyepiece cover, objective cover, portable soft bag, bracelet, mirror cloth, manual, warranty card, color box
Product Description Product Info for Nikon 8x42 Monarch M7 Binoculars Boasting a wide viewing angle that presents an immersive viewing experience, Nikon's black 8x42 Monarch M7 Binoculars have improved design features compared to previous iterations, with the same focus on comfort and performance the line is known for. Featuring extra-low dispersion glass elements with anti-reflection fully multicoated optics and highly reflective dielectric-coated, phase-corrected roof prisms, complemented by exterior lens coatings that repel water and oil, the Monarch M7 produces bright and clear high-contrast images with true-to-life color and minimal color fringing. Performance Magnification: 8x Objective Lens Diameter: 42 mm Angle of View: 8.3�° (Actual) 60.3�° (Apparent) Field of View: 435' @ 1000 yd / 144.4 m @ 1000 m Minimum Focus Distance: 8.2' / 2.5 m Exit Pupil Diameter: 5.25 mm Eye Relief: 17.1 mm Interpupillary Adjustment: 56 to 72 mm / 2.2 to 2.8" Diopter Adjustment: Yes Focus Type: Center Features Fogproof: Yes, Nitrogen Filled Water Resistance: Waterproof General Dimensions: 5.6 x 5.1 x 2.2" / 14.2 x 13 x 5.6 cm Weight: 23.6 oz / 670 g
Product Description Product Info for Nikon 10x30 Monarch M7 Binoculars Boasting a wide viewing angle that presents an immersive viewing experience, Nikon's black 10x30 Monarch M7 Binoculars have the same focus on comfort and performance as previous iterations with an updated look and compact design. Featuring extra-low dispersion glass elements with anti-reflection fully multicoated optics and highly reflective dielectric-coated, phase-corrected roof prisms complemented by exterior lens coatings that repel water and oil, the Monarch M7 produces bright and clear high-contrast images with true-to-life color and minimal color fringing. Performance Magnification: 8x Objective Lens Diameter: 42 mm Angle of View: 8.3�° (Actual) 60.3�° (Apparent) Field of View: 435' @ 1000 yd / 144.4 m @ 1000 m Minimum Focus Distance: 8.2' / 2.5 m Exit Pupil Diameter: 5.25 mm Eye Relief: 17.1 mm Interpupillary Adjustment: 56 to 72 mm / 2.2 to 2.8" Diopter Adjustment: Yes Focus Type: Center Features Fogproof: Yes, Nitrogen Filled Water Resistance: Waterproof General Dimensions: 5.6 x 5.1 x 2.2" / 14.2 x 13 x 5.6 cm Weight: 23.6 oz / 670 g
Product Description Product Info for Nikon 10x30 Monarch M7 Binoculars Boasting a wide viewing angle that presents an immersive viewing experience, Nikon's black 10x30 Monarch M7 Binoculars have the same focus on comfort and performance as previous iterations with an updated look and compact design. Featuring extra-low dispersion glass elements with anti-reflection fully multicoated optics and highly reflective dielectric-coated, phase-corrected roof prisms complemented by exterior lens coatings that repel water and oil, the Monarch M7 produces bright and clear high-contrast images with true-to-life color and minimal color fringing. Performance Magnification: 8x Objective Lens Diameter: 42 mm Angle of View: 8.3�° (Actual) 60.3�° (Apparent) Field of View: 435' @ 1000 yd / 144.4 m @ 1000 m Minimum Focus Distance: 8.2' / 2.5 m Exit Pupil Diameter: 5.25 mm Eye Relief: 17.1 mm Interpupillary Adjustment: 56 to 72 mm / 2.2 to 2.8" Diopter Adjustment: Yes Focus Type: Center Features Fogproof: Yes, Nitrogen Filled Water Resistance: Waterproof General Dimensions: 5.6 x 5.1 x 2.2" / 14.2 x 13 x 5.6 cm Weight: 23.6 oz / 670 g
