Changchun Brd Optical Co., Ltd

Optical Dome PARAMETER:
BRD Optical dome lens is composed of two parallel optical surfaces, (A convex surface & A Concave surface). Normally we can control the parallel tolerance

optical Mirror PARAMETER:
BRD Optical provide the round, square and customized shape mirrors with a protected Al coating and UV Enhanced Al coating in various sizes. 
We can provide:Aluminum Mirror with Al coating
Specification


Substrate Fused silica/ Silica/ BK7 Glass
Dimension 2mm~100mm
Clear aperture >90% of dimension
Surface quality 40/20, 20/10 Scratch-Dig
Surface Irregularity λ/2~λ/10 @632.nm
Thickness 1mm~20mm

Optical Mirror PARAMETER:
A dielectric mirror, also known as a Bragg mirror, is a type of mirror composed of multiple thin layers of dielectric material, typically deposited on a substrate of glass or some other optical material. By careful choice of the type and thickness of the dielectric layers, one can design an optical coatingwith specified reflectivity at different wavelengths of light. Dielectric mirrors are also used to produce ultra-high reflectivity mirrors: values of 99.999% or better over a narrow range of wavelengths can be produced using special techniques. Alternatively, they can be made to reflect a broad spectrum of light, such as the entire visible range or the spectrum of the Ti-sapphire laser. Mirrors of this type are very common in optics experiments, due to improved techniques that allow inexpensive manufacture of high-quality mirrors. Examples of their applications include laser cavity end mirrors, hot and cold mirrors, thin-film beamsplitters, and the coatings on modern mirrorshades.
Dielectric mirror is an optical mirror made of thin layers of dielectric coating deposited on an optical substrate. We offer dielectric laser mirrors for fixed, narrowband or broadband wavelength applications covering wavelength ranges from UV to IR. Wide selection of round, elliptical or custom shapes as well as flat, spherical, cylindrical surface mirror.
BRD Optical provide the Visible broadband dielectric, UV dielectric coating, etc.
Structure Flat, Sphere, Cylinder, or customized   shape
Substrate Fused silica/ Silica/ BK7 Glass
Dimension 2mm~100mm
Clear aperture >90% of dimension
Surface quality 40/20, 20/10 Scratch-Dig
Surface Irregularity λ/2~λ/10 @632.nm
Thickness 1mm~20mm
Coating UV/ VIS dielectric coating

Optical Mirror PARAMETER:
BRD Customized Optical Mirror. Protected gold is ideal for use in the IR wavelength range. A protective dielectric overcoat is layered over the gold to help protect it from damage and make cleaning easier. These optics provide >96% average reflectance from 800nm to 20μm.
The mirror  coated with metal (Au, Al, or Ag) over coated with silicon monoxide(SiO2). Metallic coatings have low peak reflectance, mechanical durability and damage threshold, but they have extremely broadband and low cost. They are insensitivity to angle of incident light and polarization.
Substrate Fused silica/ Silica/ BK7 Glass
Dimension 2mm~100mm
Clear aperture >90% of dimension
Surface quality 40/20, 20/10 Scratch-Dig
Surface Irregularity λ/2~/10 @632.nm
Thickness 1mm~20mm

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

Spherical Lens
PARAMETER:

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

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@632.8nmï¼?532nm
Clear   Aperture >85% dig diameter
Centration

PARAMETER:
Cylinder Lenses are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylindrical Lenses have a single cylindrical surface that causes incoming light to be focused in only a single dimension, stretching the image. Cylinder Lenses are available with positive or negative focal lengths, ideal for laser line generation or anamorphic beam shaping to circularize laser outputs.
Cylindrical lens Manufacturer:ChangChun BRD Optical co., Ltd
Optical Cylindrical lens Specification

Material Optical glass/ Fused silica/ sapphire   etc.
Dimension 2mm~100mm
Dimension   tolerance ±0.05mm~±0.1mm
Length 2mm~200mm
Surface   quality 60/40 40/20 20/10
Surface   accuracy λ/2~λ/10@632.8nm532nm
Clear   Aperture >85% dig diameter
Centration

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
Precise Optical Ball Lenses
PARAMETER:
BRD Optical ball lenses are highly polished spheres made of optically transparent homogeneous materials. Carefully controlled manufacturing process produces spheres with precise diameters and unsurpassed surface quality.
Material optical glass 
Diameter 0.2mm-100mm
Diameter Tolerance +0.0-0.05mm
Surface Qualty 60/40, 40/20.20/10
Surface Frigure lambda/2~lambda/8
Coating as customer's request

Optical Lens Assemblies
Optical Assemblies 
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 environment 
     
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:  Digital 1/1.8 "color CCD.
2.2 Illumination adjustment range: 10~1104lx).
2.3 The smallest view: 1.7°.
2.4 Optical magnification ratio: 20X, consecutive magnification.
2.5 Imaging range: 20m~.
2.6 Frame frequency: 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
3.1 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).
3.2 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 Lens Assemblies
Optical Assemblies
PARAMETER:
BRD Optical offers a range of high performance ruggedized zoom lenses based on a common chassis and sharing the same control electronics. Applicationsinclude, but are not limited to, long range surveillance, border security and remote weapon stations.
Thislens is designed to operate over the 460nm-960nm waveband. The whole system is fully automated for remote control, is built to full Mil-SPEC and can be customised to meet specific requirements.
BRD Optical offers a range of high performance ruggedized zoom lenses based on a common chassis and sharing the same control electronics. Applicationsinclude, but are not limited to, long range surveillance, border security and remote weapon stations.
Thislens is designed to operate over the 460nm-960nm waveband. The whole system is fully automated for remote control, is built to full Mil-SPEC and can be customised to meet specific requirements.

Main technical indicators and application requirements

Optical Lens Assemblies
Optical Assemblies

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 .

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

MaterialOptical glass/ Fused silica/ sapphire   etc.
Dimension2mm~300mm
Dimension   tolerance±0.05mm~±0.1mm
Centre   Thickness2mm~20mm
Surface   quality60/40 40/20 20/10
Surface   accuracy /10@632.8nm532nm
Clear   Aperture>85% dig diameter
Centration

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

MaterialOptical glass/ Fused silica/ sapphire   etc.
Dimension2mm~300mm
Dimension   tolerance±0.05mm~±0.1mm
Centre   Thickness2mm~20mm
Surface   quality60/40ï¼? 40/20ï¼? 20/10
Surface   accuracy532nm
Clear   Aperture>85% dig diameter
Centration

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.

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

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 532nm
Clear   Aperture >85% dig diameter
Centration

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

Optical Cylindrical lens
PARAMETER:
Meniscus Cylindrical Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly. This lens shape is best used when one conjugate is relatively far from the lens.
Specification

MaterialOptical glass/ Fused silica/ sapphire   etc.
Dimension2mm~300mm
Dimension   tolerance±0.05mm~±0.1mm
Centre   Thickness2mm~20mm
Surface   quality60/40, 40/20, 20/10
Surface   accuracy,532nm
Clear   Aperture>85% dig diameter
Centration

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

Prisms
Optical Components
Customized Light Guide Prism
PARAMETER:
Prisms:Right angle prism, Dove prism, Beam splitter, Penta Prism, Corner prism, Trapezium Prism, Rhomoboid Prism, Roof  Prism, Cube prism, customized prisms,etc.
Light Guide Prism Supplier:ChangChun BRD Optical co., Ltd
Flatness 2 /10
Surface Quality 80/50-10/5
Angle Tolerance 3-15
Clear Aperture >85%-95%
Chamfer 0.3mmÃ?45°-0.1mmÃ?45°
Coating As per customers requirement

Prisms
Optical Components
Right Angle Prism Supplier:ChangChun BRD Optical co., Ltd

PARAMETER:
Right angle prisms are extremely versatile optical components, commonly used as individual prisms and components of optical assemblies. A beam of light entering the leg of a right angle prism will deviate by a nominal value of 90°, while precise rotation of the prism controls beam alignment. When light enters the hypotenuse of the prism, it is commonly called a porro prism. In this configuration, a light beam will undergo 180° deviation that is invariant in the azimuthal axis, while precise adjustment of the prism controls beam elevation.
Specification
Material BK7 glass / UV Fused silica
Dimension 3mm~200mm
Dimension tolerance ±0.1mm~±0.05mm
Surface quality 60/40, 40/20, 20/10
Surface flatness  Î»/20 λ/4
Angle tolerance

Prisms
Optical Components
PARAMETER:
BK7 Glass Dove Prism have an unusual and very interesting characteristic , if you look through the prism and rotate it around a longitudinal axis, the image rotates through twice the angle through which the dove prism itself rotates. For optimal peformance, use dove prisms with collimated light.
Specification

Material BK7 glass /   Fused Silica
Dimension   tolerance + 0.0 / -0.2mm
Deviation 3arc min.
Flatness λ/2@632.8nm
Clear aperture >85%
Surface   quality 60/40, 40/20
Bevel 0.1mm Ã?45°

Optical Windows
Optical Components
PARAMETER:
Optical Glass Square Windows are optical glass with ground and polished faces that are relatively parallel.  They are used to isolate two physical environments while allowing light to pass,it also can be a protection of original when it's in two physical environments.And there is almost no effect on visible light,to coat on the surface of windows could increase the transmittance,the commonly used coatings are antireflection coating (AR) and scratch-resistant coating(AS).Windows with coating can enhance the light penetration strength,and own function of waterproof ,dustproof,and scratch-proof.
They are mainly used in mobile phone screen and lens protection,digital camera, digital video recorders, industrial optical windows, touch screen products, GPS products, digital electronic products windows, car rearview mirror, computer screen, laptop screen, watch surface and so on.
BRD Optical  Provide all types of windows made from different materials. Special size and materials are also available upon request. In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on optical windows.

Specification
Material Optical glass, Fused silica, Optical crystal
Design Wavelength 633nm
Focal Length Tolerance ±2%-5%
Dimension 5-150mm
Dimension Tolerance +0/-0.2mm ~ +0/-0.02mm
Flatness 2λ-λ/10
Surface Quality 80/50-10/5
Clear Aperture >85%-95%
Bevel 0.3mmÃ?45°-0.1mmÃ?45°
Coating As per customers requirement

Optical Windows
Optical Components
PARAMETER:
optical glass Step Windows are latively parallel.  They are used to isolate two physical environments while allowing light to pass,it also can be a protection of original when it's in two physical environments.And there is almost no effect on visible light,to coat on the surface of windows could increase the transmittance,the commonly used coatings are antireflection coating (AR) and scratch-resistant coating(AS).Windows with coating can enhance the light penetration strength,and own function of waterproof ,dustproof,and scratch-proof.
They are mainly used in mobile phone screen and lens protection,digital camera, digital video recorders, industrial optical windows, touch screen products, GPS products, digital electronic products windows, car rearview mirror, computer screen, laptop screen, watch surface and so on.
BRD Optical  Provide all types of windows made from different materials. Special size and materials are also available upon request. In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on optical windows.

Specification
Material Optical glass, Fused silica, Optical crystal
Design Wavelength 633nm
Focal Length Tolerance ±2%-5%
Dimension 5-150mm
Dimension Tolerance +0/-0.2mm ~ +0/-0.02mm
Flatness 2λ-λ/10
Surface Quality 80/50-10/5
Clear Aperture >85%-95%
Bevel 0.3mmÃ?45°-0.1mmÃ?45°
Coating As per customers requirement

Prisms
Optical Components
PARAMETER:
Polarizing cube beamsplitters split randomly polarized beams into two otehogonal, linearly, polarized compoments, S-polarized light is reflected at a 90° while P-polarized light is transmitted. Each beamsplitter comsists of a pair of percision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.
Polarization Cube Beamsplitter 
Polarizing cube beamsplitters split randomly polarized beams into two otehogonal, linearly, polarized compoments, S-polarized light is reflected at a 90° while P-polarized light is transmitted. Each beamsplitter comsists of a pair of percision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.
High Powe Cube Polarization Beamsplitter 
High power polarization beamsplitter can be facricated by BRD Optical.  Same as the above, it use precision optical contacted technology which makes it has high laser damage threshold.
High Damage Threshold>500MV/cm2
Transmission >96% Central Wavelength
Extinction Ratio>1000:1

Specification

Material Optical glass BK7 / ZF glass
Dinension tolerance ±0.1mm
Flatness λ/4 632.8nm
Surface quality 60/40, 40/20
Angle tolerance 96%,     Ts,1%   (Narrowband)
Tpave > 95%,     Ts,1%   (Broadband)
Principal reflectance Rs>99%,  Rp

Optical Components
Fused Silica Wedge Prism
PARAMETER:
The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refraction at the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from the prism.
Specification
Material BK7 glass / Fused silica
Surface Flatness: < λ / 10 @ 633nm ~λ/4@633nm
Surface Quality: 60/40, 40/20, 20/10, 10/5 (both sides)
Dimension Tolerance:

Optical Windows
We can provide optical glass Square Windows
PARAMETER:
Optical Windows are optical glass with ground and polished faces that are relatively parallel.  They are used to isolate two physical environments while allowing light to pass,it also can be a protection of original when it's in two physical environments.And there is almost no effect on visible light,to coat on the surface of windows could increase the transmittance,the commonly used coatings are antireflection coating (AR) and scratch-resistant coating(AS).Windows with coating can enhance the light penetration strength,and own function of waterproof ,dustproof,and scratch-proof.
They are mainly used in mobile phone screen and lens protection,digital camera, digital video recorders, industrial optical windows, touch screen products, GPS products, digital electronic products windows, car rearview mirror, computer screen, laptop screen, watch surface and so on.
BRD Optical  Provide Custom Round Windows. Special size and materials are also available upon request. In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on optical windows.

Specification

Material Optical glass, Fused silica, Optical crystal
Design Wavelength 633nm
Focal Length Tolerance ±2%-5%
Dimension 5-150mm
Dimension Tolerance +0/-0.2mm ~ +0/-0.02mm
Flatness 2λ-λ/10
Surface Quality 80/50-10/5
Clear Aperture >85%-95%
Bevel 0.3mmÃ?45°-0.1mmÃ?45°
Coating As per customers requirement