Optical Cylindrical lens
Optical Glass Plano Convex Cylindrical Lens
A Optical glass Cylinder Lenses is used to condense light in one axis. A positive cylindrical lens is able to create a line image from a point of light, to change the aspect ratio of an image or to focus collimated input light to a line. Plano- convex cylindrical lenses are typically used for illumination of slit and line detector arrays, laser projection, laser line focussing and anamorphic beam shaping.
Specification
Material Optical glass/ Fused silica/ sapphire etc.
Dimension 2mm~300mm
Dimension tolerance ±0.05mm~±0.1mm
Centre Thickness 2mm~20mm
Surface quality 60/40ï¼? 40/20ï¼? 20/10
Surface accuracy λ/2~λ/10@632.8nm�532nm
Clear Aperture >85% dig diameter
Centration
Optical Lens Assemblies
Optical AssembliesÂ
PARAMETER:
The F15-300mm zoom lens is mainly used in visible light band to detect specific targets or regions and transmit TV images and focal length information in real time.
The f15-300mm zoom lens is mainly used in visible light band to detect specific targets or regions and transmit TV images and focal length information in real time.
1. Applied environmentÂ
  Â
Teperature
() Visibility
Km Relative humidity
(%)
Visible light imaging 25 15 80
Enhance to penetrate the fog
25 1-8 80%
2. Main performace
2.1 Sensor:Â Digital 1/1.8 "color CCD.
2.2Â Illumination adjustment range:Â 10~1104lx).
2.3 The smallest view: 1.7°.
2.4Â Optical magnification ratio: 20X, consecutive magnification.
2.5Â Imaging range:Â 20m~.
2.6 Frame frequency:Â 50Hz.
The F15-300mm zoom system is composed of visible light zoom lens, control circuit board and power supply circuit board. The visible light zoom lens includes CCD, optical lens, diaphragm, potentiometer, micro-dc motor, CAM and other structural parts.
3 Optical lens design
3.1Â Zoom lens system is an optical system in which the focal length changes within a certain range and the image plane remains fixed. In general, the relative aperture is constant during zoom.For imaging system, continuous zoom optical system is the best way to solve the problem of large field search and small field resolution. The ratio of the two ultimate focal lengths in the zoom range, namely the ratio of the long focal length to the short focal length, is called magnification ratio, also known as multiplier. In consideration of the secondary spectrum requirements, the plan of the small relative aperture of the long focal length is adopted (that is, the relative aperture also changes during the zoom process).
3.2Â The optical system USES a continuous zoom lens with a focal length of 15mm~300mm.
No. Parameters Item Design Result
1 Zoom ratio 20x
2 Focal length f=15mm~300mm
4 Horizontal field 1.27°~24.9°
5
Visual discrimination(Design value) Short focus(Wide field of view) 200lp/mm
Long focus(Wide field of view) 180lp/mm
6
OTF Characteristic frequency 145lp/mm MTF 0.2
Optical Cylindrical lens
PARAMETER:
A plano concave cylindrical lens is used to expand light in on axis. A negative cylindrical lens is able to diverge collimated input light away from a line. Plano-concave cylindrical lenses are used for one-dimensional compression of images, anamorphic beam shaping, and laser line generation.
Specification
PARAMETER:
Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Lens, which is often designed by either cementing two elements together or mounting the two elements in a housing, creates smaller spot sizes than comparable singlet lenses.
Specification
Material,Crow glass & Flint glass
Diameter,6.0mm-200mm
Diameter Tolerance,±0.1mm
Thickness,5mm-50mm
Thickness Tolerance,±0.05mm
Surface Quality,60/40 40/20
Surface Flatness,lambda~lambda/8
Bevel,0.25mm*45°
Centration, < 3arc min
Coating, as the customer's requirement
BK7 Glass Powell Lens
PARAMETER:
The Powell lens is a quantum leap forward in line generator performance over the simple cylinder lens. A cylinder lens produces a poorly illuminated line, one limited by the non-uniform, Gaussian laser beam. The Powell lens' rounded roof is in fact a complex two-dimensional aspheric curve that generates a tremendous amount of spherical aberration that redistributes the light along the line; decreasing the light in the central area while increasing the light level at the line's ends. The result is a very uniformly illuminated line used in all manner of machine vision applications; from bio-medical and automobile assembly to chocolate chip cookie production.
The Customized Powell Prism resembles a round prism with a curved roof line. The lens is a laser line generator, stretching a narrow laser beam into a uniformly illuminated straight line
.
Specification
Material Fused silica/ BK7glass
Diameter 0.8mm, 1mm, 2mm, 3mm, 5mm, 9mm, 10mm, 15mm or customized size
Diameter Tolerance +0.0/-0.05mm / ±0.05mm
Range of Fan 3°,5°,10°,15°,20°,30°,45°,53°,60°,70°,75°,85°,90°96°,100°,110°,120°
Angle tolerance 90%
Bevel
PARAMETER:
Rhombic prisms are used to displace a beam laterally without changing its direction. They may be coated to transmit part of the beam and produce two parallel and displaced emerging beams. Can be coated to produce a polarizing beam separator. These prisms are manufactured from either BK7A or Fused Silica. Rhomboid Prism with Coating are supplied uncoated but many coating options are available.
Rhomboid prisms are commonly used to displace a laser beam without changing its direction. In imaging applications, rhomboid prisms will displace the optical axis without inverting the image. The lateral displacement is equal to the length of the prism.
Specification.
Material: BK7 glass / UV Fused Silica
Surface Flatness: < λ / 8 @ 633 nm
Surface Quality: 60/40, 40/20, 20/10
Dimension Tolerance: < + 0.00 / 0.20 mm
Angular Deviation < 3 arc min~ 30arc sec.
Clear Aperture: > 85%
Bevel: 0.3 mm x 45°
Coating As per customers request
Spherical Lens Half Ball Lens
PARAMETER:
ODM Half Ball Lens are completely spherical lenses most commonly used to couple light in and out of fibres. Half-ball lenses are hemispheres.
BRD Optical supplies bespoke ball and half-ball lenses to our customers specifications. Ball lenses can be manufactured in quartz to have excellent UV and IR transmission between 185nm to 2000+nm, while sapphire lenses have a higher refractive index allowing a very short fall back length to better facilitate fibre coupling. Custom ball lenses are available in a range of alternative materials such as optical grade glass or even ceramics or IR crystal. Our half ball lenses offer uniform dispersion of light and typically used in LED displays and LED traffic lights.
Sphertical Lens Plano Convex Lens are positive focal length elements that have one spherical surface and one flat surface. These lenses are designed for infinite conjugate (parallel light) use or simple imaging in non-critical applications. These optic lenses are ideal for all-purpose focusing elements.
BRD Optical Manufactures Plano Convex Lens
Plano Convex Lens Exporter:ChangChun BRD Optical co., Ltd
Specification:
Material Optical grade glass/ Fused Silica/ Sapphire
Diameter 2mm~300mm
Diameter Tolerence ±0.05mm~±1mm
Surface Quality 80/50, 60/40, 40/20, 20/10, 10/5
Surface Accuracy λ~λ/20
Centration 3 arc min~30 arc sec.
Coating As per customer's request
This lens is a fast (f/1.2) wide angle (100°) SWIR lens to cover the range of 600-1700nm
Low F--Ã? distortion and high transparency.
This lens is excellent for spectral analysis by changing filters and compact size .
The lens can be modified for several detectors and mechanical housing .
Mount adaptor .
This lens is a fast (f/1.2) wide angle (100°) SWIR lens to cover the range of 600-1700nm
Low F--Ã? distortion and high transparency.
This lens is excellent for spectral analysis by changing filters and compact size .
The lens can be modified for several detectors and mechanical housing .
C-Mount adaptor .
