BRD Optical

BRD Optical was founded in 2004, and is located in the city of Changchun-the optic base of China with a beautiful view and profound optical culture. We have state-of-the-art, modern technology machines for manufacturing and inspecting all kinds of precision optics. Our company occupies an area of 2,000 square meters, supported by 120 workers. https://www.brdoptical.com/

[brdoptical]

Corner Cube Retroreflector

https://www.brdoptical.com/products/corner-cube-retroreflector/

BK7 and UVFS Corner Cube Retroreflector Prism are designed to deviate incident light by 180 degrees independently of an angle of incidence. These corner cube prisms have three mirror surfaces with angles at 90° to each other, juxtaposed to form the corner of a cube with the entrance face perpendicular to the cube's diagonal.

 Description Of Corner Cube Retroreflector Prism

A corner cube retroreflector, also known as a CCR or trihedral optical prism, is an optical structure that consists of three adjacent, mutually-orthogonal plane-reflecting surfaces which form the corner of a cube. The corner cube reflects an incident ray at a specific angle, independent of the prism and beam orientations.

 Ecoptik corner cubes are used in a wide variety of applications such as spectroscopy, battlefield technology and satellites. Corner cubes enable range finding for weapons systems and aid in performing other precise displacement and distance measurements. For example, a satellite in orbit around the earth requires monitoring of its position while it measures plate tectonics and ocean surface topography.

 Specification Of Corner Cube Retroreflector Prism

  General   spec. High precision spec. Material Optical glass (H-K9L, BK7, or others),   Fused silica Dimension 2mm~80mm Dimension tolerance ±0.1mm ±0.02mm 90°Deviation   tolerance <3 arc min < 3arc sec. Surface flatness @ 633nm λ/2 λ/4 Surface quality 60-40 20-10 Coating Upon the customer’s request

[brdoptical]

Beamsplitter

https://www.brdoptical.com/products/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.

 If you want to get polarising beamsplitter price, please feel free to contact us.

 Description Of Polarising Cube BeamSplitters

 Polarization Cube Beamsplitter

Polarizing Cube beamsplitters split randomly polarized beams into two orthogonal, linearly, polarized components, S-polarized light is reflected at 90° while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right-angle prisms cemented together with a dielectric coating on the hypotenuse of one of the prisms.

 High Powe Cube Polarization Beamsplitter

High power polarization beamsplitter can be fabricated by Ecoptik (also known as BRD Optical).  Same as the above, it uses precision optical contacted technology which makes it has a high laser damage threshold.

 High Damage Threshold>500MV/cm2

 Transmission >96% @ Central Wavelength

 Extinction Ratio>1000:1

 Specification Of Optical Polarising Beamsplitters

Material Optical glass BK7 / ZF glass Dimension tolerance ±0.1mm Flatness λ/4 @ 632.8nm Surface quality 60/40, 40/20 Angle tolerance <3arc min~ 30 arc sec. Principal transmittance Tpave > 96%,     Ts,1%   (Narrowband) Tpave > 95%,     Ts,1%   (Broadband) Principal reflectance Rs>99%,  Rp<5% Coating Hypotenuse face: Polarization beamsplitter coating; All input and output face: AR Coating

[brdoptical]

Bandpass Filter

https://www.brdoptical.com/products/bandpass-filter/

Bandpass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.

 As one of the best optical bandpass filter manufacturers, we can provide ideal bandpass filters.

 Custom Bandpass Filter

 Description Of Bandpass Filter

Bandpass filters are widely used in wireless transmitters and receivers. The main function of such an optical filter glass in a transmitter is to limit the bandwidth of the output signal to the band allocated for the transmission. This prevents the transmitter from interfering with other stations. In a receiver, a bandpass filter allows signals within a selected range of frequencies to be heard or decoded, while preventing signals at unwanted frequencies from getting through. A bandpass filter also optimizes the signal-to-noise ratio and sensitivity of a receiver.

 In both transmitting and receiving applications, well-designed bandpass filters, having the optimum bandwidth for the mode and speed of communication being used, maximize the number of signal transmitters that can exist in a system, while minimizing the interference or competition among signals.

Type No. Centre   Wavelength   (nm) Bandwidth   (nm) Tpeak   (%) Blocking   Range   (nm) Blocking Depth BPF-220/10 220 10 >13 200-2000 OD3 BPF-254/10 254 10 >20 200-2000 OD3 BPF-260/10 260 10 >20 200-2000 OD3 BPF-266/10 266 10 >20 200-2000 OD3 BPF-280/12 280 12 >20 200-2000 OD3 BPF-302/12 302 12 >20 200-2000 OD3 BPF-330/12 330 12 >20 200-2000 OD3 BPF-340/10 340 10 >50 200-1200 OD5 BPF-350/8 350 8 >35 200-1200 OD2 BPF-352/10 352 10 >45 200-1100 OD5 BPF-355/8 355 8 >40 200-1200 OD4 BPF-355/10 355 10 >50 200-1100 OD4 BPF-355/85 355 85 >90 200-1000 OD3 BPF-358/13 358 13 >55 200-1100 OD4 BPF-360/10 360 10 >50 200-1100 OD4 BPF-360/12 360 12 >50 200-1200 OD4 BPF-365/10 365 10 >50 200-1100 OD4 BPF-365/40 365 40 >60 200-1100 OD4 BPF-365/80 365 80 >85 200-800 OD3 BPF-370/10 370 10 >55 200-1100 OD3 BPF-375/10 375 10 >55 200-1100 OD3 BPF-379/12 379 12 >50 200-1100 OD3 BPF-387/10 387 10 >60 200-1100 OD3 BPF-395/10 395 10 >50 200-1100 OD3 BPF-400/10 400 10 >55 200-1200 OD4 BPF-400/30 400 30 >75 200-1100 OD4 BPF-405/10 405 10 >55 200-1100 OD3 BPF-405/20 405 20 >65 200-1200 OD4 BPF-410/8 410 8 >50 200-1100 OD4 BPF-410/20 410 20 >65 200-1200 OD4 BPF-410/25 410 25 >90 200-1100 OD3 BPF-410/30 410 30 >85 200-1100 OD5 BPF-412/10 412 10 >56 200-1200 OD4 BPF-415/10 415 10 >60 200-1200 OD4 BPF-415/20 415 20 >60 200-1200 OD4 BPF-415/55 415 55 >85 200-800 OD4 BPF-418/10 418 10 >60 200-1200 OD4 BPF-420/10 420 10 >50 200-1100 OD4 BPF-420/22 420 22 >85 200-1100 OD3 BPF-425/10 425 10 >65 200-1200 OD4 BPF-427/10 427 10 >70 200-1200 OD5 BPF-435/10 435 10 >55 200-1100 OD5 BPF-440/10 440 10 >50 200-1200 OD4 BPF-445/10 445 10 >70 200-1200 OD4 BPF-447/10 447 10 >50 200-1200 OD4 BPF-450/10 450 10 >55 200-1200 OD4 BPF-450/50 450 50 >60 200-1200 OD4 BPF-450/30 450 30 >90 200-1100 OD3 BPF-450/50 450 50 >90 400-800 OD3 BPF-450/100 450 10 >75 200-1200 OD3 BPF-455/10 455 10 >60 200-1200 OD4 BPF-456/10 456 10 >75 200-1200 OD4 BPF-460/20 460 20 >85 200-1200 OD3

 Specifications Of Bandpass Filter

[brdoptical]

Anamorphic Prism

https://www.brdoptical.com/products/anamorphic-prism/

An anamorphic prism pair is a pair of prisms which is usually used for reshaping the profile of a laser beam. For example, the elliptical beam from a laser diode can be transformed into a beam with circular cross-section, as is needed for many applications, by using an optical prism pair as a beam expander for only one direction (e.g., the horizontal one). Of course, one can also just modify the ellipticity, or convert a circular beam into an elliptical one.

 Custom Anamorphic Prism

 Description Of Anamorphic Prism

Diode lasers usually have elliptical beam profiles. In most cases, though, the shape of the circular beam is required, such as pattern matching with the external resonator to make the beam size adapt to the small aperture through the isolator. A deformed pair of prisms is used to transform an elliptical laser diode beam into an approximately circular beam to amplify an elliptical beam in one dimension.

 Specifications Of Anamorphic Prism

Material

SF11

Dimension Tolerances

+0.0, -0.2 mm

Surface Flatness

<λ/8 @ 632.8 nm

Surface Quality

60-40 scratch & dig

Theta Angle

29°27' ± 3"

Clear Aperture

> 85% in central circular dimension

Coating

MgF2 single layer on   perpendicular surface

[brdoptical]

Achromatic Coated Lens

https://www.brdoptical.com/products/achromatic-cemented-lens/

Achromatic Coated Lens is used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Coated Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Coated 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.

 The achromatic coated lens can also be called an achromatic doublet lens or achromatic cemented lens. If you want to know more information, please contact us.

 Custom Achromatic Coated Lens

Description

Description Of Achromatic Coated Lens

The Achromatic Coated 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 Of Achromatic Coated Lens

 Material

Optical Flint glass & Crown glass

Diameter

6mm~200mm

Diameter Tolerance

±0.05mm(≤50mm)

±0.1mm(＞50mm)

Focal Length

50mm~2000mm

Focal Length Tolerance

±0.2%（＜10mm）

±0.5%（＜10mm-1000mm）

±1%（＜＞1000mm）

Center Thickness

2mm~50mm

Surface Quality

60/40， 40/20，   20/10

Surface Accuracy

λ/2~λ/[email protected]，532nm

Clear Aperture

>85% dig diameter

Centration

<3arc min~ 30arc sec

Coating

As per the customer's request

[brdoptical]

Achromatic Cemented Cylindrical Lens

https://www.brdoptical.com/products/achromatic-cemented-cylindrical-lens/

An achromatic cylindrical lens can minimize chromatic aberration, so it can be used to focus a single direction of a multi-color light beam. Unlike a spherical lens that produces a point-focusing spot, an achromatic cylindrical lens can produce a linear focusing spot. Our cylindrical achromatic doublets are pre-installed in a Ø1" housing for ease of use. The housing is engraved with the part number, the range of the increased projection film, the focal length, the arrow indicating the direction the lens should face when the quasi-linear light source, and the infinity symbol indicating that the lens has an infinite conjugate ratio. As one of the professional optical components companies, Ecoptik (also known as BRD Optical) can provide various achromatic cylindrical lenses. If you have a demand, please feel free to contact us.

 Custom Achromatic Cemented Cylindrical Lens

Description

Description Of Achromatic Cemented Cylindrical Lens

Achromatic Cylindrical Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Cylindrical Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Cylindrical 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 Of Achromatic Cemented Cylindrical Lens

  Commercial High precision

Material Optical glasses, fused silica, silica, etc.

Diameter 0.5mm ~ 150mm

Diameter tolerance ±0.1mm ±0.02

Focal length -50mm ~ 2000mm

Focal length tolerance ±2% (<10mm)

±0.5% <10mm – 1000mm)

±1% (>1000%)

Centraticom <3 arc min <10 arc sec

Clear aperture >85% ~92% of diameter

Surface quality ( Scratch / Dig) MIL 60/40 MIL 10/5

Surface accuracy λ/[email protected] λ/10632.8nm

Bevel 0.05mm~0.2mm x 45°

Coating Up on customer's requirement.

[brdoptical]

PRECISION OPTICAL PRODUCTS MANUFACTURER

https://www.brdoptical.com/products/

Committed To Quality

Dedicated To Service

Delivering Solutions

 Focus on Precision Optical Products for More Than 15 Years

As a professional precision optical products manufacturer, Ecoptik (also known as BRD Optical) is committed to processing high precision customized optical solutions. Quantity and service are the creeds of Ecoptik (also known as BRD Optical). The precision optical components are exported to more than 30 countries and have been praised and affirmed by the market. Optical component design, processing, coating, assembly that we can provide a full chain of services. especially lens processing. Let Ecoptik (also known as BRD Optical) be your No.1 optical products manufacturer.

 Ecoptik (also known as BRD Optical), as a professional precision optical products manufacturer, can provide a variety of optical elements, processing Optical spherical, aspherical, flat and coating service. We maintain strict quality control and provide the full of inspection reports. High precision surface accuracy up to λ /20. We also can supply custom optical components/assemblies, such as mirrors, windows and lenses.

 In addition to the general optical materials we mainly offer optical grade fused quartz materials, low coefficient of expansion materials and monocrystalline silicon materials.

 As a professional precision optical products manufacturer, BRD Optical is committed to professional customized optical assembly solutions. Based on our processing and optical component design capabilities, we can provide customers with personalized processing and assembly services.

[brdoptical]

Double Convex Lens

https://www.brdoptical.com/products/double-convex-lens/

The double convex lens is symmetrical across both its horizontal and vertical axis. Each of the lens' two faces can be thought of as originally being part of a sphere. The fact that a double convex lens is thicker across its middle is an indicator that it will converge rays of light that travel parallel to its principal axis. A double convex lens is a converging lens. A double concave lens is also symmetrical across both its horizontal and vertical axis. The two faces of a double concave lens can be thought of as originally being part of a sphere. The fact that a double concave lens is thinner across its middle is an indicator that it will diverge rays of light that travel parallel to its principal axis. A double concave lens is a diverging lens. These two types of lenses - a double convex and a double concave lens will be the only types of lenses that will be discussed in this unit of The Physics Classroom Tutorial.

 If you want to get the double convex lens price, please feel free to contact us.

 Description Of Double Convex Lens

The fact that a double concave lens is thinner across its middle is an indicator that it will diverge rays of light that travel parallel to its principal axis. A double concave lens is a diverging lens. These two types of lenses - a double convex and a double concave lens will be the only types of lenses that will be discussed in this unit of The Physics Classroom Tutorial.

 Specifications Of Two Convex Lenses

[brdoptical]

Anamorphic Prism

https://www.brdoptical.com/products/anamorphic-prism/

An anamorphic prism pair is a pair of prisms which is usually used for reshaping the profile of a laser beam. For example, the elliptical beam from a laser diode can be transformed into a beam with circular cross-section, as is needed for many applications, by using an optical prism pair as a beam expander for only one direction (e.g., the horizontal one). Of course, one can also just modify the ellipticity, or convert a circular beam into an elliptical one.

 Description Of Anamorphic Prism

  Diode lasers usually have elliptical beam profiles. In most cases, though, the shape of the circular beam is required, such as pattern matching with the external resonator to make the beam size adapt to the small aperture through the isolator. A deformed pair of prisms is used to transform an elliptical laser diode beam into an approximately circular beam to amplify an elliptical beam in one dimension.

 Specifications Of Anamorphic Prism

Material

SF11

Dimension Tolerances

+0.0, -0.2 mm

Surface Flatness

<λ/8 @ 632.8 nm

Surface Quality

60-40 scratch & dig

Theta Angle

29°27' ± 3"

Clear Aperture

> 85% in central circular dimension

Coating

MgF2 single layer on   perpendicular surface

[brdoptical]

Achromatic Cemented Cylindrical Lens

https://www.brdoptical.com/products/achromatic-cemented-cylindrical-lens/

An achromatic cylindrical lens can minimize chromatic aberration, so it can be used to focus a single direction of a multi-color light beam. Unlike a spherical lens that produces a point-focusing spot, an achromatic cylindrical lens can produce a linear focusing spot. Our cylindrical achromatic doublets are pre-installed in a Ø1" housing for ease of use. The housing is engraved with the part number, the range of the increased projection film, the focal length, the arrow indicating the direction the lens should face when the quasi-linear light source, and the infinity symbol indicating that the lens has an infinite conjugate ratio. As one of the professional optical components companies, BRD Optical can provide a various achromatic cylindrical lenses. If you have demand, please feel free to contact us.

 Description Of Achromatic Cemented Cylindrical Lens

Achromatic Cylindrical Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Cylindrical Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Cylindrical 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 Of Achromatic Cemented Cylindrical Lens

Commercial

High precision

Material

Optical glasses, fused silica, silica, etc.

Diameter

0.5mm ~ 150mm

Diameter tolerance

±0.1mm

±0.02

Focal length

-50mm ~ 2000mm

Focal length tolerance

±2% (<10mm)

±0.5% <10mm – 1000mm)

±1% (>1000%)

Centraticom

<3 arc min

<10 arc sec

Clear aperture

>85% ~92% of diameter

Surface quality ( Scratch / Dig)

MIL 60/40

MIL 10/5

Surface accuracy

λ/[email protected]

λ/10632.8nm

Bevel

0.05mm~0.2mm x 45°

Coating

Up on  customer’s requirement.

[brdoptical]

Optical Application

https://www.brdoptical.com/optical-products-application/

Introduction Of Optical Application

 Optical engineering is a long and young subject. Its theoretical basis-optics, as the backbone of physics, has experienced a long and tortuous development path, casting geometric optics, wave optics, quantum optics and nonlinear optics, revealing the law of light generation and propagation and the relationship with matter Interaction relationship. With the rise of laser technology and optoelectronic technology, optical engineering has developed to be based on precision optical products, and is integrated with disciplines such as information science, energy science, material science, life science, space science, precision machinery and manufacturing, computer science, and microelectronics technology. Closely intersecting and interpenetrating disciplines. It contains many important emerging disciplines, such as laser technology, optical communication, optical storage and recording, optical information processing, photoelectric display, holography and three-dimensional imaging, thin-film and integrated optics, optoelectronics and photonics technology, laser material processing and processing, Low light and infrared imaging technology, photoelectric measurement, fiber optics, modern optics and optoelectronic instruments and devices, optical remote sensing technology, and integrated optical engineering technology, etc. These branches not only made a qualitative leap in optical engineering but also promoted the establishment of a rapidly expanding modern optical industry and optoelectronics industry. BRD Optical takes its paces in the application of optics in daily life. Our optical applications can be seen in astronomy, biotechnology, defense science and aerospace, etc.

 Important Optical Application

 In the field of astronomical observation, various optical mirrors are mainly used, mainly flat mirrors, Newtonian mirrors, etc. For the optical application, BRD Optical can supply high-precision customized size plane, spherical, aspherical mirrors, suitable for multiple astronomical systems.

Optical Products in  BiotechnologyBiotechnology

 Optical components are widely used in the field of biotechnology for optical application, mainly including microscopes, optical imaging technology, optical detection, illumination assistance, sensors that assist human detection, etc.

 Optical Products in Defense Science And AerospaceDefense Science And Aerospace

Precision optical components have important optical applications in space optics, aerospace and other national defense, and national major optical engineering fields. BRD Optical specializes in processing high-precision infrared optical lenses.

 Optical Products in Environmental Monitoring And MeteorologyEnvironmental Monitoring And Meteorology

 In advanced environmental and meteorological testing equipment, various optical sensors play a pivotal role. They may measure the intensity of sunlight or the imaging detection of microorganisms in various environments. In short, optical components are used for environmental and atmospheric detection. The role of China has become increasingly prominent. Especially with the continuous improvement of testing requirements, the accuracy of optical components is also constantly improving, BRD Optical's professional precision optical solutions.

 Optical Products in High Precision Photonics SystemHigh Precision Photonics System

Optical imaging bears the brunt of the use of optical components. With the advancement of technology, more imaging systems have emerged. Such as motion imaging, high-precision infrared imaging, expanded beam imaging and diffraction imaging and so on. BRD Optical solves precision custom optics for you.

 Optical Products in Laser Optical SystemLaser System

Optical components are one of the important components of the laser system, which directly affect the effect of laser processing. Usually, laser systems have contact wave lasers and pulsed lasers. With the development of science and technology, there are more and more high-power laser systems, and the corresponding optical components must meet the requirements of high damage threshold. BRD Optical provides you with high-precision and high-power customized optical components

 Optical Products in Medical InstrumentsMedical Instruments

Medical optical instruments in optical applications mainly include ophthalmic instruments, microscopes, medical endoscopes, and medical laser instruments. Among them, imaging and filtering, light refraction are the most widely used, mainly through the use of optical lenses, filters, windows, prisms, etc.

 Optical Products in Oil And GasOil And Gas

Advanced optical systems such as optical fiber sensor measurement and optical-electronic theodolite survey have greatly improved human beings' survey capabilities for oil, natural gas and other energy sources. Precise optical components are important parts of various measurements and survey systems. BRD Optical provides a variety of high-precision and suitable optical components for the optical application.

 Optical Products in Science And ResearchScience And Research

The development of cutting-edge science relies on many disciplines. Optics as a basic science has strong practicality. BRD Optical cooperates with domestic and foreign scientific research institutions and university research laboratories to provide precise design, processing and assembly to help scientific and technological progress.

[brdoptical]

Neutral Density Filter

https://www.brdoptical.com/products/neutral-density-filter/

Neutral density filter is often used in imaging or laser applications to avoid strong light damage to camera sensors or other optical components. ND filters absorb or reflect untransmitted light to evenly reduce transmission in a given part of the spectrum.

 If you want to get the neutral density lens filters price, please feel free to contact us. BRD Optical can provide different types of neutral density filters.

 Description Of Neutral Density Filter

 BRD Optical makes fixed OD value neutral density filter by depositing Inconel film on a clear cubstrate. The advantage of the coated density filter is in the broader band and lower ripple than that of absorptive density filter. The coated wavelengthcan be extended to 200nm to 1100nm or more. The disadvantage is that there is some reflective light on the optical filter glass. The OD value can vary from 0.1 to 0.5. The OD value is controlled by coating inconel thin film thickness. Regular thickn thickness of the NDF is 1.1mm or 0.55mm.

 Neutral density filters can be used for video, waterfalls, ophthalmology and landscape photography.

 Specifications Of Neutral Density Lens Filter

 Material

BK7

Diameter   tolerance

+0.0/-0.1mm

Thickness   tolerance

±0.1mm

Parallelism

<3 arc min

Flatness

λ~λ/10

Clear aperture

>90%

Density   tolerance

±2%

[brdoptical]

Narrow Bandpass Filter

https://www.brdoptical.com/products/narrow-bandpass-filter/

Based on the technique of all-dielectric hard coating and the principle of dielectric interference, and based on the characteristics of narrow-band filters, the optical properties are independent of the substrate. The narrow-band filter produced by BRD Optical is more convenient to be built into the instrument imaging system, so that its optical performance can be improved and effectively applied. The special optical material substrate is used to solve the problem that the absorption type synthetic glass is easy to mold and the optical performance is unstable. The products are produced according to the customer's index requirements.

 Description Of Narrow Band Bandpass Filter

 Bandwidth refers to the distance between two positions in the passband whose transmittance is half of the peak transmittanceThe above six parameters must be taken into account in the use and selection of narrow-band filters. Different performance indexes require different manufacturing costs of filters.

 Specifications Of Narrow Band Pass Filter

 Material

Optical glass BK7/ Fused silica

Surface quality

40/20, 20/10

Thickness range

0.5mm-5.0mm or upon the customer’s   request

FWHM

20nm, 30nm,40nm,50nm,60nm or upon   the customer’s request

Wavelength range

340nm, 380nm, 405nm, 450nm, 492nm   510nm,546nm,578nm, 600nm,620nm,630nm,650nm,850nm,805nm, 940nm, 1064nm

OD

OD3, OD4, OD5

Dimension

3mm-200mm

[brdoptical]

Meniscus Lens

https://www.brdoptical.com/products/meniscus-lens/

BRD Optical provides meniscus lens in both positive and negative focal lengths. These lenses are useful when used with another lenses to increase or decrease the focal length. This lens element configuration does not introduce any additional coma or spherical aberrations

 Description Of Meniscus Lens

 BRD Optical provides meniscus lens in both positive and negative focal lengths. On the aspect of shape, it can be divided into convex and concave meniscus lens. On the aspect of the effect, it can be divided into diverging and converging meniscus lens.

[brdoptical]

Longpass Filter

https://www.brdoptical.com/products/longpass-filter/

One side is coated with a hard dielectric long-pass optical filter film, and the other side is coated with an anti-reflection film to achieve high transmittance and high damage threshold.

 Description Of Longpass Filter

 BRD Optical has the advantages of wide cut-off band width, deep cut-off depth, high conversion steepness and high transmittance. It can be widely used in fluorescence excitation spectrum measurement, Raman spectrum application, spectrum grouping application, and astronomical observation application, etc. It can also be widely used in imaging optical system, machine vision system application, used to eliminate the interference light outside the available band, greatly improve the imaging clarity, as well as the sensitivity of the system.

 Specifications Of Longpass Filter

 Material

BK7

Transmittance

T>90%

Blocking Depth

OD2-OD4

AOI

0° or 45°

Surface   quality

60/40

Clear aperture

>90%

Part No.

blocking   Range    (nm)

Blocking Depth

Transmission   Range    (nm)

Transmittance   in    pass band

LPF400

200-375

>OD2

420-1200

Tavg>85%

LPF425

200-405

>OD2

445-1200

Tavg>85%

LPF450

200-430

>OD2

470-1200

Tavg>85%

LPF475

200-455

>OD2

495-1200

Tavg>85%

LPF500

200-480

>OD2

520-1200

Tavg>85%

LPF525

200-550

>OD2

545-1200

Tavg>85%

LPF550

200-530

>OD2

575-1200

Tavg>85%

LPF575

200-550

>OD2

600-1200

Tavg>85%

LPF600

200-570

>OD2

625-1200

Tavg>85%

LPF625

200-595

>OD2

650-1200

Tavg>85%

LPF650

200-620

>OD2

675-1200

Tavg>85%

LPF675

200-645

>OD2

700-1200

Tavg>85%

LPF700

200-670

>OD2

725-1200

Tavg>85%

LPF725

200-695

>OD2

750-1200

Tavg>85%

LPF750

200-720

>OD2

775-1200

Tavg>85%

LPF775

200-745

>OD2

800-1200

Tavg>85%

LPF800

400-770

>OD2

825-1200

Tavg>85%

LPF825

400-795

>OD2

850-1200

Tavg>85%

LPF850

400-820

>OD2

875-1200

Tavg>85%

LPF875

400-845

>OD2

900-1200

Tavg>85%

LPF900

400-870

>OD2

930-1200

Tavg>85%

LPF925

400-895

>OD2

955-1200

Tavg>85%

LPF950

400-910

>OD2

980-1200

Tavg>85%

LPF975

400-935

>OD2

1010-1800

Tavg>85%

LPF1000

400-960

>OD2

1040-1800

Tavg>85%

LPF1025

400-985

>OD2

1070-1800

Tavg>85%

LPF1050

400-1010

>OD2

1110-1800

Tavg>85%

LPF1075

400-1035

>OD2

1130-1800

Tavg>85%

LPF1100

400-1060

>OD2

1160-1800

Tavg>85%

[brdoptical]

Light Guide Prism

https://www.brdoptical.com/products/light-guide-prism/

Prisms: Right angle prism, Dove prism, Beam splitter, Penta Prism, Corner prism, Trapezium Prism, Rhomoboid Prism, Roof  Prism, Cube prism, customized prisms, etc.

 Description Of Light Guide Prism

BRD Optcial prisms has the advantages of right angle prism, Dove prism, Beam splitter, Penta Prism, Corner prism, Trapezium Prism, Rhomoboid Prism, Roof  Prism, Cube prism, customized prisms, etc

 Specifications Of Light Guide Prism

Flatness

2λ-λ/10

Surface Quality

80/50-10/5

Angle Tolerance

3’-15’’

Clear Aperture

>85%-95%

Chamfer

0.3mm×45°-0.1mm×45°

Coating

As per customer’s requirement

[brdoptical]

Infrared Optics

https://www.brdoptical.com/products/infrared-optics/

BRD Optical focuses on the R&D and manufacturing of precision infrared optical devices. With professional coating and polishing technology, we provide customers with customized high-precision and complex optical devices, including short-wave infrared optical devices, mid-wave infrared optical devices, long-wave infrared optical devices, windows, and beam splitters, etc. BRD Optical provides various IR lenses and IR dome, please feel free to contact us.

 The main materials include Germanium series, silicon series, zinc selenide series, zinc sulfide series, etc. The products are suitable for all kinds of laser equipment, optical testing instruments, etc.