PlaneWave 20 英寸 CDK（校正 Dall-Kirkham）光学设计是一种创新解决方案，以实惠的价格提供无与伦比的天文成像质量。CDK 望远镜设计使用大尺寸 CCD 相机提供出色的成像效果，同时仍保持出色的视觉使用效果。CDK 设计的离轴性能远远超过大多数商用望远镜设计，包括 Ritchey-Chrétien 设计。这种不折不扣的设计独特之处在于使光学对准变得容易，准直变得非常简单。这确保了用户从望远镜中获得最佳性能。CDK 设计的图像平面的最终结果是没有离轴彗差、没有离轴散光、完全平坦的视场（没有离轴散焦）。CDK 设计将为您提供从视场中心到角落的精确恒星。有关我们的光学设计的更多信息

PlaneWave Instruments CDK20 是一款 20 英寸（0.51 米）f/6.8 校正 Dall-Kirkham 天文望远镜。CDK20 采用双碳纤维桁架设计，配有 3 个冷却风扇，从望远镜后部排出空气。CDK20 覆盖 52 毫米视野，无任何场曲、离轴彗形像差或像散。该仪器重量为 140 磅（64 千克），标配背板固定环，可随时安装您选择的调焦器。

所有 CDK20 望远镜均配备 熔融石英主镜和次镜

特征：

光学系统

次镜

主镜

镜头组

船运

包含的配件

注意：本产品交货期较长。如需更多详细信息，请发送电子邮件至： education@bintel.com.au

成功推出 DeltaRho 350 后，DeltaRho 500 现已推出，可克服超广角成像的挑战。主镜固定到位，只需简单调整副镜的倾斜度和倾斜度，即可快速实现准直。由于 PlaneWave 追求完美的望远镜，其聚光能力是 DeltaRho 350 的两倍多，最大限度地提高天文照相仪的性能从未如此简单！

• 修正卡塞格林焦点光学设计
• 孔径 – 508 毫米 (20″)
• 焦距 – 1537 毫米
• 焦距比 – f /3.03
• 70mm 像圈 > 2.6 度
• 固定主镜
• 通过副镜上的 3 个倾斜螺钉进行准直
• 距安装表面 9.166 英寸（232.8 毫米）（不含调焦器和旋转器）。
• 安装 Series-5XL 调焦器和 Series-5 旋转器后，后焦距为 5.81 英寸 (147.6 毫米)（调焦器位于行程范围的中间点）。
• 内置主、辅除露加热器，配有温度传感器
• 与 L-500 或 600 系列直接驱动支架兼容。

PlaneWave 团队热衷于设计卓越的望远镜，以便世界各地的用户能够捕捉到最令人惊叹的天文图像。从设计到制造，DeltaRho 500 的目标都是围绕创造革命性的广角望远镜。DeltaRho 500 采用卡塞格林光学设计，成像列车位于望远镜后部，以防止仪器受阻。与主焦点设计相比，这具有真正的优势，主焦点设计会严重限制用户使用滤光轮或大型相机的能力。DeltaRho 500 以 f/3 和 1537 毫米焦距运行，见证望远镜技术的惊人突破，这必将彻底改变您的天文摄影。

最后，但并非最不重要的一点是，DeltaRho 500 提供了平坦的视野，可确保从角落到角落的图像都具有令人惊叹的清晰度，而不会降低场曲率。DeltaRho 500 提供单镜准直的简便性、先进 3D 打印挡板的杂散光控制以及通过有限元分析 (FEA) 创建的结构性能。使用大型 16803/4040 (52mm) 尺寸的相机传感器时，DeltaRho 500 用户可以从边缘到边缘体验精确的星星和 2 度视野。这个视野是我们 CDK 20 的两倍多！这种设备让用户体验到全新水平的广角成像，可以让他们比以往任何时候都更接近深空。DeltaRho 500 让用户和令人惊叹的天文图像之间没有任何障碍。

多年来，我们一直梦想着打造出一款完美的广角成像望远镜，而 PlaneWave 革命性的 DeltaRho 350 f /3 望远镜终于实现了我们对创新的追求。DeltaRho 350 专为无与伦比的广角成像和现场易用性而设计。由于主镜固定到位，因此只需调整副镜的倾斜度和倾斜度即可快速实现准直。有了 Delta Rho 350，您的天文摄影体验将无与伦比！

• 修正卡塞格林焦点光学设计
• 孔径 – 350 毫米
• 焦距 – 1050 毫米
• 焦距比 – f /3
• 60mm 像圈 > 3 度
• 固定主镜
• 通过副镜上的 3 个倾斜螺钉进行准直
• 距安装表面（不含调焦器和旋转器）的后焦距为 5.651 英寸（143.535 毫米）。此距离包括来自滤光片的折射。
• 安装 5 系列调焦器和 5 系列旋转器后，后焦距为 2.525 英寸 (64.135 毫米)（调焦器位于行程范围的中间点）。
• 内置主、辅除露加热器，配有温度传感器
• *产品照片中的 L-350 支架单独出售

拍摄最令人惊叹的天文照片是我们团队所热衷的事情。从设计到制造，我们对 DeltaRho 350 的目标都是打造一款改变游戏规则的广角望远镜。DeltaRho 350 采用卡塞格林光学设计，这意味着成像列车固定在望远镜的背面，不会阻挡光路，而主焦点设计会严重限制用户使用滤光轮或大型相机的能力。

DeltaRho 350 是望远镜技术和易用性方面的一项惊人突破。DeltaRho 以 f/3 和 1050 毫米焦距运行，是一款广角望远镜，必将彻底改变您的天文摄影！

此外，DeltaRho 350 提供了完美的平坦视野，因此您的天文照片从图像的角落到角落都将具有惊人的清晰度，而场曲率不会降低照片的质量。DeltaRho 350 是一款出色的望远镜，它具有单镜准直的简便性、高级挡板的杂散光控制、通过有限元分析 (FEA) 创建的结构性能以及数十年的望远镜设计经验。使用大型 16803/4040 尺寸相机传感器时，DeltaRho 350 用户可以从边到边体验精确的星星和 170 x 170 弧分的视野。这个视野几乎是我们 CDK14 的 3 倍！当设备淡入背景并简单地运行时，天文摄影体验变得更加有趣和有益！

光学系统

次镜

主镜

镜头组

标准功能

船运

包含物品

推荐配件

OTA 配件

• 5 系列调焦器 (6011001)
• 5 系列旋转器 (6021001)
• 5系列控制器（600199）

安装配件

• L-350 直接驱动安装座 (600549)
• DeltaRho 350 背驮式燕尾槽 (140990)

影像配件

• 适用于 5 系列调焦器或旋转器的倾斜适配器，可连接至 SecureFit (6061006)

The CDK500 Observatory System from PlaneWave Instruments is a sophisticated solution designed for the serious astrophotographer and dedicated astronomy researcher. This high-end system combines the powerful CDK20 optical tube with the precise L-500 direct-drive mount, creating an exceptional observational platform that excels in a variety of scientific and imaging applications.

Key Features of the CDK500 Observatory System

CDK20 Optical Tube Assembly

• Advanced Optical Design: Employs a Corrected Dall-Kirkham optical design, achieving a field free of off-axis coma and astigmatism and a perfectly flat field across a 52 mm image circle, resulting in critically sharp images over the entire viewing area.
• High-Quality Construction: Constructed with robust carbon fiber, reducing thermal expansion and enabling quick thermal equilibration, which helps maintain precise optical alignment under fluctuating temperatures.
• Superior Mirrors and Coatings: Equipped with high-stability fused silica mirrors known for minimal thermal expansion, paired with high-performance coatings that maximize light throughput while minimizing stray light for optimal imaging quality.
• Thermal Management: Incorporates an advanced cooling system with strategically placed fans that ensure rapid thermal stabilization, essential for maintaining consistent, high-quality imaging and minimizing focus shifts caused by temperature changes.

CDK20 f/6.8 OTA

• Aperture and Focal Length: Features a 20-inch aperture, a shorter 3454 mm focal length at a faster f/6.8 focal ratio, and a shorter back focus of 223 mm.

CDK20 f/7.7 OTA

• Aperture and Focal Length: Features a 20-inch aperture, a longer 3947mm focal length at an f/7.7 focal ratio, and a longer 269.24 mm back focus.

L-500 Direct Drive Mount

• Direct Drive Motors: Features state-of-the-art direct-drive motors on each axis, providing smooth, fast, and virtually silent movement of the telescope with zero backlash and zero periodic error, perfect for precise tracking and rapid repositioning of celestial objects.
• High-Resolution Encoders: Outfitted with high-resolution optical encoders on both axes, offering precise positioning and movement, which is crucial for elite astrophotography and detailed astronomical studies.
• Azimuth Dovetail Balance System: Includes a finely adjustable balance system that enhances the stability and performance of the setup in both alt-azimuth and equatorial configurations, essential for prolonged accurate tracking and reducing stress on the mount during extended observations.
• Rapid Target Acquisition: Capable of impressive slew speeds up to 50 degrees per second, allowing for quick and efficient targeting of celestial bodies and satellites, vital for dynamic observations and responsive astrophotography.

Application-Specific Advantages

Astrophotography

The CDK500 is a formidable system for astrophotographers, offering unmatched tracking accuracy and image stability, which facilitate capturing spectacular celestial images with detailed resolution and vibrant colors.

Astronomy Research

Researchers will find the CDK500 invaluable for its consistent performance and precise data collection capabilities. It serves as a robust platform for sophisticated photometry, spectroscopy, and minor planet tracking, offering a solid foundation for scientific discovery and exploration.

Visual Observations

For enthusiasts of visual astronomy, the CDK500 provides vibrant and detailed views of the universe. Its significant aperture and high-quality optical components ensure exceptional viewing of planetary, lunar, and deep-sky objects, enriching every observational experience.

Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

With its swift and precise repositioning capabilities, the L-500 mount in the CDK500 system is capable of tracking satellites and space debris. However, it's important to note that while the L-series mounts are highly effective for astrophotography and research applications, they might not meet the optimal performance standards required for dedicated SSA/SDA operations. For those needs, we recommend exploring our T-600 Direct-Drive Gimbal, specifically engineered to exceed the demanding requirements for SSA/SDA applications, ensuring superior tracking and responsiveness in monitoring and cataloging space objects.

Mount systems

Control systems

Optical systems

Mechanical structure 

Motion control

System Performance 

Induced items

The CDK450 Observatory System from PlaneWave Instruments is a sophisticated solution designed for the serious astrophotographer and dedicated astronomy researcher. This high-end system combines the powerful CDK17 optical tube with the precise L-550 direct-drive mount, creating an exceptional observational platform that excels in a variety of scientific and imaging applications.

Key Features of the CDK450 Observatory System

CDK17 Optical Tube Assembly

• Advanced Optical Design: Employs a Corrected Dall-Kirkham optical design, achieving a field free of off-axis coma and astigmatism and a perfectly flat field across a 52 mm image circle, resulting in critically sharp images over the entire viewing area.
• High-Quality Construction: Constructed with robust carbon fiber, reducing thermal expansion and enabling quick thermal equilibration, which helps maintain precise optical alignment under fluctuating temperatures.
• Superior Mirrors and Coatings: Equipped with high-stability fused silica mirrors known for minimal thermal expansion, paired with high-performance coatings that maximize light throughput while minimizing stray light for optimal imaging quality.
• Thermal Management: Incorporates an advanced cooling system with strategically placed fans that ensure rapid thermal stabilization, essential for maintaining consistent, high-quality imaging and minimizing focus shifts caused by temperature changes.

CDK17 f/6.8 OTA

• Aperture and Focal Length: Features a 17-inch aperture, a shorter 3454 mm focal length at a faster f/6.8 focal ratio, and a shorter back focus of 262 mm.

L-550 Direct Drive Mount

• Direct Drive Motors: Features state-of-the-art direct-drive motors on each axis, providing smooth, fast, and virtually silent movement of the telescope with zero backlash and zero periodic error, perfect for precise tracking and rapid repositioning of celestial objects.
• High-Resolution Encoders: Outfitted with high-resolution optical encoders on both axes, offering precise positioning and movement, which is crucial for elite astrophotography and detailed astronomical studies.
• Azimuth Dovetail Balance System: Includes a finely adjustable balance system that enhances the stability and performance of the setup in both alt-azimuth and equatorial configurations, essential for prolonged accurate tracking and reducing stress on the mount during extended observations.
• Rapid Target Acquisition: Capable of impressive slew speeds up to 50 degrees per second, allowing for quick and efficient targeting of celestial bodies and satellites, vital for dynamic observations and responsive astrophotography.

Application-Specific Advantages

Astrophotography

The CDK450 is a formidable system for astrophotographers, offering unmatched tracking accuracy and image stability, which facilitate capturing spectacular celestial images with detailed resolution and vibrant colors. The L-550 carries a greater payload capacity – perfect for holding a second telescope on the outside hub.

Astronomy Research

Researchers will find the CDK450 invaluable for its consistent performance and precise data collection capabilities. It serves as a robust platform for sophisticated photometry, spectroscopy, and minor planet tracking, offering a solid foundation for scientific discovery and exploration.

Visual Observations

For enthusiasts of visual astronomy, the CDK450 provides vibrant and detailed views of the universe. Its significant aperture and high-quality optical components ensure exceptional viewing of planetary, lunar, and deep-sky objects, enriching every observational experience.

Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

With its swift and precise repositioning capabilities, the L-550 mount in the CDK450 system is capable of tracking satellites and space debris. However, it's important to note that while the L-series mounts are highly effective for astrophotography and research applications, they might not meet the optimal performance standards required for dedicated SSA/SDA operations. For those needs, we recommend exploring our T-600 Direct-Drive Gimbal, specifically engineered to exceed the demanding requirements for SSA/SDA applications, ensuring superior tracking and responsiveness in monitoring and cataloging space objects.

Mount system 

Control system

Optical systems

Motion control 

System Performance 

Included Items

The CDK400 Observatory System from PlaneWave Instruments is designed for the sophisticated astrophotographer and dedicated astronomy researcher. This premium package combines the high-performing CDK17 optical tube with the advanced L-500 direct-drive mount to provide a superior observational platform that excels in a range of applications, from detailed celestial research to high-end astrophotography.

Key Features of the CDK400 Observatory System

CDK17 Optical Tube Assembly

• Aperture and Focal Length: Features a 17-inch aperture and a 2939 mm focal length at an f/6.8 focal ratio, optimizing it for deep-sky imaging with excellent depth and clarity.
• Advanced Optical Design: Utilizes a Corrected Dall-Kirkham optical design, delivering a field free of off-axis coma and astigmatism and achieving a perfectly flat field across a 70 mm image circle, resulting in critically sharp images across the entire viewing area.
• High-Quality Construction: Made with lightweight yet robust carbon fiber, reducing thermal expansion and allowing for rapid thermal equilibration, which helps maintain precise optical alignment under fluctuating temperatures.
• Superior Mirrors and Coatings: Equipped with high-stability fused silica mirrors known for minimal thermal expansion, paired with high-performance coatings that maximize light throughput while minimizing stray light for optimal imaging quality.
• Thermal Management: Features an advanced cooling system with strategically placed fans that promote rapid thermal stabilization, essential for maintaining consistent high-quality imaging and minimizing focus shifts caused by temperature changes.

L-500 Direct Drive Mount

• Direct Drive Motors: Employs state-of-the-art direct-drive motors on each axis, ensuring smooth, fast, and virtually silent movement of the telescope with zero backlash and zero periodic error, perfect for precise tracking and swift repositioning of celestial objects.
• High-Resolution Encoders: Outfitted with high-resolution optical encoders on both axes, providing exacting positioning and movement, crucial for top-tier astrophotography and detailed astronomical studies.
• Azimuth Dovetail Balance System: Incorporates a finely adjustable balance system that improves the stability and performance of the setup in both alt-azimuth and equatorial configurations, essential for prolonged accurate tracking and reducing stress on the mount during extended observations.
• Rapid Target Acquisition: Achieves impressive slew speeds up to 50 degrees per second, allowing for quick and efficient targeting of celestial bodies and satellites, vital for dynamic observations and responsive astrophotography.

Application-Specific Advantages

Astrophotography

The CDK400 stands out as a formidable system for astrophotographers, offering unmatched tracking accuracy and image stability which facilitate capturing spectacular celestial images with detailed resolution and vibrant colors.

Astronomy Research

Researchers will appreciate the CDK400 for its consistent performance and precise data collection capabilities. It serves as a robust platform for sophisticated photometry, spectroscopy, and minor planet tracking, offering a solid foundation for scientific discovery and exploration.

Visual Observations

For enthusiasts of visual astronomy, the CDK400 delivers vibrant and detailed views of the universe. Its significant aperture and high-quality optical components ensure exceptional viewing of planetary, lunar, and deep-sky objects, enriching every observational experience.

Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

With its swift and precise repositioning capabilities, the L-500 mount in the CDK400 system is capable of tracking satellites and space debris. However, it's important to note that while the L-series mounts are highly effective for astrophotography and research applications, they might not meet the optimal performance standards required for dedicated SSA/SDA operations. For those needs, we recommend exploring our T-600 Direct-Drive Gimbal, specifically engineered to exceed the demanding requirements for SSA/SDA applications, ensuring superior tracking and responsiveness in monitoring and cataloging space objects.

Mount System 

Control System

Optical Systems

Mechanical Structure

Motion control

System Performance 

Included items

The DeltaRho 350 Telescope System from PlaneWave Instruments is crafted for elite astronomers and astrophotographers who demand the best. Created with a passion for excellence, the DeltaRho 350 Telescope System brings groundbreaking features to advanced imaging, offering unmatched versatility across a spectrum of scientific and communicative applications. The DeltaRho 350 Telescope System from PlaneWave Instruments features a 350mm wide-field, f/3 aperture. This premium CDK optical tube combines a DeltaRho 350 with a L-350 direct drive mount.

Large Aperture and Optimized Focal Ratio

The IRDK24 features a generous 610 mm aperture paired with an f/6.5 focal ratio, enhancing its ability to capture light effectively. This combination is ideal for detailed infrared observations and long-exposure imaging, providing superb light-gathering capabilities.

Specialized Optical Design for Infrared

The Dall-Kirkham optical design of the IRDK24 is optimized for infrared wavelengths. There are no refractive lenses, only reflective fused silica mirrors. Reflective coatings are a protected gold with better than 98% reflectivity from .65 microns (650nm) to 5 microns (5000nm), ideal for infrared astronomy or LIDAR applications. UV-optimized coatings can also be provided, so please contact our technical sales team to discuss UV optimization.

Robust Mechanical Structure

Constructed using carbon fiber, the optical tube of the IRDK24 offers durability and stability with minimal thermal expansion. This design ensures consistent performance under varying environmental conditions, making it suitable for intensive scientific applications.

Advanced Thermal Management

The IRDK24 incorporates cooling fans and a system ready for Delta-T applications, facilitating rapid thermal equilibrium. This setup is crucial for minimizing air turbulence within the tube, thus reducing potential image distortion and enhancing overall imaging quality.

Integrated Dew Control

Infrared observations can be susceptible to condensation, but the IRDK24 addresses this with sophisticated dew prevention technology. Heater pads, controlled via PlaneWave’s software, ensure the optical surfaces remain clear from dew, thereby maintaining consistent and clear imaging performance.

Application-Specific Benefits

Infrared Astronomy: The IRDK24 is especially effective for infrared astronomy, where its large aperture and infrared-optimized optics allow for detailed observation of celestial objects in infrared light. This capability is essential for studying astrophysical phenomena invisible to the naked eye or standard optical wavelengths.

Advanced Research and LIDAR Applications: With its specialized design and infrared optimization, the IRDK24 is a robust platform for advanced scientific research, including LIDAR.

Optical Systems

Primary Mirror

Secondary Mirror

IRDK20’s Key Features

Large Aperture and Optimized Focal Ratio

The IRDK20 features a substantial 508 mm aperture and an f/6.8 focal ratio, enhancing its ability to gather infrared light effectively. This setup is ideal for detailed infrared observations and long-exposure imaging, offering excellent light-gathering capabilities.

Specialized Optical Design for Infrared

The Dall-Kirkham optical design of the IRDK20 is optimized for infrared wavelengths. There are no refractive lenses, only reflective fused silica mirrors. The reflective coatings are a protected gold with better than 98% reflectivity from .65 microns (650nm) to 5 microns (5000nm), ideal for infrared astronomy or LIDAR applications. UV-optimized coatings can also be provided, so please contact our technical sales team to discuss UV optimization.

Robust Mechanical Structure

Constructed using carbon fiber, the optical tube of the IRDK20 provides durability and stability with minimal thermal expansion. This design ensures consistent performance across varying environmental conditions, making it suitable for intensive scientific applications.

Advanced Thermal Management

The IRDK20 includes cooling fans and a system prepared for Delta-T applications, promoting rapid thermal equilibrium. This setup is crucial for minimizing air turbulence within the tube, thus reducing potential image distortion and enhancing overall imaging quality.

Integrated Dew Control

Infrared observations can be prone to condensation, but the IRDK20 addresses this with advanced dew prevention technology. Heater pads, controlled via PlaneWave’s software, ensure the optical surfaces remain clear from dew, maintaining consistent and clear imaging performance.

Application-Specific Benefits

Infrared Astronomy

The IRDK20 excels in infrared astronomy, where its large aperture and infrared-optimized optics allow for detailed observation of celestial objects in infrared light. This capability is crucial for studying astrophysical phenomena invisible to the naked eye or standard optical wavelengths.

Advanced Research and LIDAR Applications

With its specialized design and infrared optimization, the IRDK20 is a robust platform for advanced scientific research, including LIDAR applications.

Optical Systems

Secondary Mirror

Primary Mirror

The IRDK14 from PlaneWave Instruments is a precisely engineered optical system designed for high performance in infrared wavelengths. It is an excellent tool for advanced astronomical research and remote sensing applications, offering superior performance for infrared imaging.

IRDK14’s Key Features

Large Aperture and Optimized Focal Ratio

The IRDK14 features a 356 mm aperture and an f/7.2 focal ratio, enhancing its capacity to gather infrared light effectively. This setup is ideal for detailed infrared observations and long-exposure imaging, providing exceptional light-gathering capabilities.

Specialized Optical Design for Infrared

The Dall-Kirkham optical design of the IRDK14 is optimized for infrared wavelengths. There are no refractive lenses, only reflective fused silica mirrors. The reflective coatings are a protected gold with better than 98% reflectivity from .65 microns (650nm) to 5 microns (5000nm), making it well-suited for infrared astronomy or LIDAR applications. UV-optimized coatings can also be provided, and potential customers are encouraged to contact our technical sales team to discuss UV optimization.

Robust Mechanical Structure

Constructed using carbon fiber, the optical tube of the IRDK14 offers durability and stability with minimal thermal expansion. This design ensures consistent performance under various environmental conditions, making it suitable for intensive scientific applications.

Advanced Thermal Management

The IRDK14 includes cooling fans and a system prepared for Delta-T applications, promoting rapid thermal equilibrium. This feature is critical for minimizing air turbulence within the tube, thus reducing potential image distortion and enhancing overall imaging quality.

Integrated Dew Control

Infrared observations are prone to condensation, but the IRDK14 tackles this with advanced dew prevention technology. Heater pads, controlled via PlaneWave’s software, ensure the optical surfaces stay clear from dew, maintaining consistent and clear imaging performance.

Application-Specific Benefits

Infrared Astronomy

The IRDK14 excels in infrared astronomy, where its significant aperture and infrared-optimized optics allow for precise observation of celestial objects in infrared light. This capability is essential for studying astrophysical phenomena invisible to the naked eye or standard optical wavelengths.

Advanced Research and LIDAR Applications

With its specialized design and infrared optimization, the IRDK14 is a robust platform for advanced scientific research, including LIDAR and other remote sensing applications.

Key Features Overview

The IRDK14 comes with impressive specifications tailored for infrared optimization:

• Gold-coated mirrors optimized for high reflectivity in infrared wavelengths (ultraviolet optimization available)
• 14-inch (356 mm) aperture
• 2563 mm focal length
• f/7.2 focal ratio
• 282mm back focus from mounting surface
• 70mm image circle
• Rock-solid fused silica mirrors with low thermal expansion
• Lightweight and rigid carbon fiber optical tube assembly

Optical Systems

Secondary Mirror

Primary Mirror

CDK24’s Key Features

Large Aperture and Moderate Focal Ratio

The CDK24 features a substantial 610 mm aperture and a moderate f/6.5 focal ratio. This setup enhances its capability to capture deep-sky objects with remarkable detail, providing excellent light-gathering efficiency and a broad field of view for research and imaging.

Advanced Optical Design

Equipped with a state-of-the-art Corrected Dall-Kirkham optical system, the CDK24 offers exceptional image clarity. Its design eliminates off-axis coma and astigmatism and delivers a perfectly flat field, ensuring images are sharp and detailed across the entire field of view with minimal post-processing adjustments.

Robust Mechanical Structure

Constructed with a carbon fiber optical tube, the CDK24 is lightweight and durable. Its thermal expansion coefficient ensures minimal focus shift as temperatures change, making it ideal for prolonged observing sessions under varying environmental conditions.

High-Performance Mirrors and Coatings

Utilizing fused silica mirrors, the CDK24 maintains precise optical alignment and surface accuracy, even with temperature fluctuations. Its high-quality coatings enhance light transmission and reduce stray light, optimizing performance for specialized observational tasks.

Thermal Management

The CDK24 is equipped with cooling fans and a Delta-T ready system to achieve thermal equilibrium swiftly. These features help to minimize air turbulence within the tube, thus reducing image distortion and maintaining consistent imaging quality.

Integrated Dew Control

The telescope incorporates advanced dew prevention technology with heater pads controlled by PlaneWave’s software. This ensures that optical surfaces remain clear of condensation during humid conditions, thus maintaining clear and consistent imaging performance.

Application-Specific Benefits

Astrophotography

With its large image circle and exquisite field flatness, the CDK24 allows astrophotographers to capture expansive and breathtaking views of the cosmos with incredible detail and clarity.

Astronomy Research

The precise and stable imaging capabilities of the CDK24 make it an invaluable tool for academic institutions and observatories engaged in complex astronomical research, including deep-sky surveys and detailed photometric studies.

Visual Observations

The CDK24 excels in visual observation, offering bright and crisp views ideal for star parties and serious visual astronomy. The telescope's large aperture and superior optical quality provide stunning views of planetary, lunar, and deep-sky objects, making every viewing session a remarkable experience.

Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

The CDK24 also lend itself to applications in Space Situational Awareness and Space Domain Awareness. Its capability to provide detailed observations can be essential for tracking and monitoring satellites and other space debris, contributing valuable data for space traffic management and safety initiatives.

Optical Systems

Secondary Mirror

Lens Group

Primary Mirror

捕捉最令人惊叹的天文照片是我们团队所热衷的事情。从设计到制造，我们对校正 Dall-Kirkham (CDK) 20 英寸望远镜的目标都是围绕性能和易用性。Planewave CDK20 f/7.7 OTA 是望远镜技术的一次巨大突破，不会产生离轴彗形像差和离轴像散。此外，CDK20 提供完美平坦的视场，因此您的天文照片从图像的角落到角落都将具有令人惊叹的清晰度，而场曲率不会降低照片的质量。CDK20 是一款出色的衍射极限望远镜，它具有单镜准直的简便性、高级挡板的杂散光控制、通过有限元分析 (FEA) 创建的结构性能以及数十年的望远镜设计经验。 CDK20 用户在使用 16803 尺寸的大型相机传感器时，可以体验边缘到边缘的精确星点和 45 x 45 弧分的视野。当设备淡入背景并简单地发挥作用时，天文摄影体验变得更加有趣和有益！

PlaneWave 17" 优化版采用 Dall-Kirkham 光学设计，其涂层经过优化，可在红外或紫外波长下传输。它在焦平面上 20 毫米图像圈内衍射受限。设计中没有折射透镜，只有反射组件。对于红外应用，反射涂层是一种受保护的金，可在 0.65 微米（650nm）至 5 微米（5000nm）范围内提供超过 98% 的反射率。这种设计非常适合红外天文学或激光雷达应用。也可以使用紫外线优化涂层，但需额外付费。

光学系统

次镜

次镜

三级镜

标准功能

运输尺寸和重量

板条箱尺寸：148厘米 x 77厘米 x 94厘米（58英寸 x 30英寸 x 37英寸）

板条箱运输重量：105 公斤（225 磅）

注意：本产品的交货期较长，如需更多信息，请发送电子邮件至： education@bintel.com.au

PlaneWave CDK 12.5 熔融石英

捕捉最令人惊叹的天文照片是我们团队所热衷的事情。从设计到制造，我们对校正 Dall-Kirkham (CDK) 12.5 英寸望远镜的目标都是以性能和易用性为中心。PlaneWave CDK 12.5 熔融石英是望远镜技术的一次巨大突破，不会产生离轴彗差和离轴像散。此外，PlaneWave CDK 12.5 熔融石英可提供完美的平坦视场，因此您的天文照片从图像的角落到角落都将具有令人惊叹的清晰度，而场曲率不会降低照片的质量。CDK12.5 是一款出色的衍射极限望远镜，它具有单镜准直的简便性、高级挡板的杂散光控制、通过有限元分析 (FEA) 创建的结构性能以及数十年的望远镜设计经验。 CDK12.5 用户在使用大型相机传感器时可以体验到边缘到边缘的精确星点和 70 x 70 弧分的视野。当设备淡入背景并简单地发挥作用时，天文摄影体验变得更加有趣和有益！

PlaneWave CDK 12.5 熔融石英是一台 12.5 英寸（0.32 米）f/8 校正 Dall-Kirkham 天文望远镜。该望远镜有一个封闭的碳纤维管，3 个冷却风扇从望远镜后部排出空气。PlaneWave CDK 12.5 覆盖 52 毫米视野，没有任何场曲、离轴彗形像差或像散。该仪器重量为 21 公斤，标配大容量 2.75 英寸 Hedrick 调焦器。

技术

CDK光学设计

CDK望远镜 基于 Dave Rowe 开发的新光学设计。该设计的目标是制造一台价格合理的天文望远镜，其成像平面足够大，以充分利用当今的大画幅 CCD 相机。大多数望远镜图像在偏离轴时会因彗形像差、离轴像散或场曲而变差。CDK 设计不会出现这些问题。CDK无彗形像差、无离轴像散，且具有平坦的场。该设计是解决上述问题的简单而优雅的解决方案。CDK 由三个组件组成：一个椭圆主镜、一个球面副镜和一个透镜组。所有这些组件都经过优化，可以协同工作，从而在整个 52 毫米图像平面上创建出色的精确星点。

光学性能

图中显示了两个模拟，展示了 CDK 的惊人性能。第一个是衍射模拟，第二个是点图。在这两个模拟中，小方块都是 9×9 微米，大约是 CCD 像素的大小。在衍射模拟中，轴上和轴外的星像几乎相同。在轴外 21 毫米的点图中，光斑尺寸是令人难以置信的 6 微米 RMS 直径。这意味着 52 毫米像圈上的星星将是大气视宁度允许的最小的点。

这两种模拟都考虑了平面场，这更准确地表示了光学元件在平面 CCD 相机芯片上的表现。对于视觉使用，一定程度的场曲率是允许的，因为眼睛能够补偿弯曲的场。衍射模拟是在 585nm 处计算的。点图是在 720、585 和 430nm 处计算的。许多公司只显示一种波长的点图，但您无法仅用一种波长看到色度性能。

比较：CDK 与 Ritchey Chrétien

所示的模拟将 CDK 设计与 Ritchey Chrétien (RC) 设计的光学性能进行了比较。Ritchey 设计因在许多专业领域中的应用而成为天文成像望远镜的热门选择

天文台。尽管制造和校准非常困难且成本高昂，但 Ritchey 成功地消除了困扰许多其他设计的许多问题，即离轴彗形像差。然而，Ritchey 并没有消除离轴像散和场曲的破坏性影响。

CDK 设计通过将一对校正透镜集成到双镜设计中来解决离轴彗形像差问题。这种设计的妙处在于，它还可以校正像散和场曲。由于透镜距离焦平面相对较近（与各种施密特卡塞格林设计中的施密特校正板不同），并且由于这些透镜以双合透镜的形式协同工作，因此不存在色差。CDK 提供宽阔的无像差平坦视野，使用户能够充分利用当今市场上的超大成像芯片相机。

如果光学元件无法正确对准，那么无像差望远镜设计也毫无意义。许多 Ritchey 拥有者从未充分利用其仪器的性能，因为 Ritchey 很难校准。在 Ritchey 设计中，将双曲面副镜的光轴与主镜的光轴对准至关重要，而且公差非常大。CDK 设计的副镜是球面的。它没有光轴，因此 CDK 副镜的定心公差相对较大。借助一些非常简单的工具，CDK 用户将能够在几分钟内设置副镜间距、校准光学元件并开始享受该仪器提供的全部性能潜力。

CDK 和 RC 之间的性能差异非常明显。降低 RC 离轴性能的最大因素是由于场曲率导致的散焦。在 RC 制造商展示的许多图表中，这些图表看起来比这更好，因为它们显示的是弯曲的场。这对于视觉使用来说很好，因为眼睛可以补偿一定程度的场曲率。但 CCD 阵列是平坦的，因此为了评估性能，点图和/或衍射模拟需要如图所示的平坦场。

PlaneWave CDK 12.5 规格

光学系统

次镜

主镜

镜头组

船运

包含的配件

准直和间距说明

PlaneWave CDK 14 英寸熔融石英

CDK（校正 Dall-Kirkham）光学设计是一种创新的解决方案，以实惠的价格提供无与伦比的天文成像质量。CDK 望远镜设计使用大尺寸 CCD 相机提供出色的成像效果，同时仍保持出色的视觉使用效果。CDK 设计的离轴性能远远超过大多数商用望远镜设计，包括 Ritchey-Chrétien 设计。

熔融石英

熔融石英是一种纯度最高的合成非晶态石英玻璃，也是最透明的玻璃之一。

由于纯度高，熔融石英的光学和热学性质优于其他类型的玻璃。其透射率和均匀性均超过结晶石英，且不存在结晶形式固有的温度不稳定问题。

熔融石英的热系数比硼硅酸盐玻璃低六倍，这意味着熔融石英在冷却时能够保持其形状，精度很高。这意味着在温度变化时，其光学性能始终如一，焦点也始终如一。

熔融石英具有较高的熔化温度（约 1,600 摄氏度）、极低的热膨胀系数和抗热冲击性，是专业天文台以及各种科学应用的首选材料。

这种毫不妥协的设计是独一无二的，它使光学对准变得容易，准直变得非常简单。这保证了用户从望远镜中获得最佳性能。CDK 设计的图像平面的最终结果是没有离轴彗差、没有离轴散光、完全平坦的视场（没有离轴散焦）。CDK 设计将让您从视场的中心到角落精确地找到星星。

有关我们的光学设计的更多信息

特征：

PlaneWave CDK 14 英寸熔融石英规格

光学系统

次镜

主镜

镜头组

标准功能

船运

注意：本产品的交货周期较长。如需更多信息，请联系education@bintel.com.au 。