8.5mm f/1.8, 75mm-∞ Primary WD, HRi Series Fixed Focal Length Lens

Product Details 2/3″, C-Mount Lens Up to 10 MegaPixels, 1.85µm Pixel Size Sensors Instrumentation (HRi) Versions of our HR Series Lenses with Streamlined Mechanical Designs and Fixed Apertures 8.5mm to 12mm Focal Length Ruggedized (HRr) Designs Also Available TECHSPEC HRi Series Fixed Focal Length Lenses are a streamlined version of our HR Series Lenses. There are multiple options available for each focal length to accommodate a variety of optimized working distance ranges. Designed for high volume imaging applications, HPi series lenses feature simplified focus mechanics and a fixed aperture. TECHSPEC HRi Series Fixed Focal Length Lenses are available in a variety of f/# options, making them ideal for applications that require reduced size, cost, and lockable focus imaging solutions. Call for OEM Quantity Pricing. Edmund Optics has created a family of high performance optical designs (the HR Series family) and developed three customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the HR Series Lenses, providing the same optical performance in a variety of optomechanical solutions to meet your application requirements: HR Series : Features locking cam focus and iris adjustment. This is the most adjustable version of these optical designs and is the typical high quality machine vision lens. HRi Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus. HRr Series : All optics glued in place and a locking C-clamp focus ring. Stabilized Ruggedization for reduced pixel shift and improved focus stability. Specifications General Product Family: HRi Series Type: Fixed Focal Length Lens Physical & Mechanical Properties Iris Option: Fixed Length (mm): 44.57 Maximum Diameter (mm): 40 Outer Diameter (mm): 40 Weight (g): 84 Maximum Rear Protrusion (mm): 1.31 Optical Properties Horizontal Field of View @ Max Sensor Format: 101.4mm – 56.8° Field of View at Max Sensor Format: Horizontal: 101.4mm – 56.8° Vertical: 74.2mm – 43.5° Diagonal: 130.5mm – 68.9° Horizontal Field of View, 2/3″ Sensor: 101.4mm – 56.8° Horizontal Field of View, 1/1.8″ Sensor: 81.5mm – 47.2° Horizontal Field of View, 1/2″ Sensor: 71.9mm – 42.2° Horizontal Field of View, 1/2.5″ Sensor: 64.8mm – 38.4° Horizontal Field of View, 1/3″ Sensor: 53.2mm – 32.0° Horizontal Field of View, 1/4″ Sensor: 39.6mm – 24.1° Maximum Image Circle (mm): 11.00 Numerical Aperture NA, Object Side: 0.0249 Number of Elements (Groups): 9 (8) Focal Length FL (mm): 8.50 Working Distance (mm): 75 – ∞ Aperture (f/#): f/1.8 Coating: 425 – 675nm BBAR Coating Specification: 425 – 675nm BBAR Entrance Pupil Position (mm): Measured from the first lens surface on the object side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. 18.85 Object Space Principal Plane (mm): Measured from the first lens surface on the object side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. 25.03 Image Space Principal Plane (mm): Measured from the last lens surface on the image side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. 4.70 Maximum Distortion (%): -5.6 Exit Pupil Position (mm): Measured from the last lens surface on the image side. Positive values indicate direction toward the image side; negative values indicate direction toward the object side. -17.93 Optimized Working Distance (mm): 75 – ∞ Lens Wavelength Range: VIS Sensor Maximum Sensor Format: 2/3″ Pixel Size (μm): 1.85 Threading & Mounting Filter Thread: M58 x 0.75 (Male) Filter Thread Adapter: #87-425 (Required) Front Thread: M40 x 0.5 (Male) Mount: C-Mount Environmental & Durability Factors Storage Temperature (°C): -20 to +60 Type of Ruggedization: Industrial (Fixed Aperture with Simplified Mechanics) Regulatory Compliance Certificate of Conformance: View ×