2.9mm Cone Lens

Product Brief  

BOSHI Optical Technology presents the PL-02934H-M12, a high performance wide angle fixed lens for 1/4" Image Sensor formats. With 2.9mm Focal Length and F3.4 Aperture, this Wide Angle Optical Lens delivers a 119° Field of View for broad scene coverage in tight spaces. The all glass construction supports thermal stability and consistent image quality. A controlled Chief Ray Angle below 6.63° reduces colour shading with modern CMOS sensors. The Compact Fixed Lens has an 8.9mm total track length and a 2.46mm mechanical back focal distance for M12 Lens Mount integration. BOSHI Optical Technology balances TV Distortion at about 14.27% barrel distortion, a typical value for wide angle optics that digital correction can address. Relative illumination is 30% at the edge for usable brightness in low light. This lens suits Surveillance and Automotive Imaging, embedded vision, security cameras, in vehicle surround view systems, and industrial inspection. The 2.9mm Focal Length and 119° Field of View support dashcams, doorbell cameras, and compact devices. The F3.4 Aperture provides useful depth of field from 0.3m to infinity. The 1/4" Image Sensor compatibility, M12 Lens Mount, Wide Angle Optical Lens design, Compact Fixed Lens shape, TV Distortion profile, and Chief Ray Angle control make this model a practical choice. For engineers who need Surveillance and Automotive Imaging, BOSHI Optical Technology offers a balanced blend of coverage, size, and cost efficiency.

Product Detailed Description  

1. Optical Parameter  

• Focal Length (EFL): BOSHI Optical Technology specifies 2.9mm Focal Length with ±5% tolerance. This 2.9mm Focal Length creates an ultra wide perspective for capturing large areas from close distances. In the overall design, 2.9mm Focal Length is the main factor behind angular coverage. The 2.9mm Focal Length also supports compact camera modules.

• Aperture (F/NO): F3.4 Aperture with ±5% tolerance. The F3.4 Aperture balances light throughput and depth of field for indoor and outdoor use. BOSHI Optical Technology chooses F3.4 Aperture to keep the lens practical in varied illumination. This F3.4 Aperture also helps maintain focus from 0.3m to infinity.

• Image Circle and Sensor Format: Maximum image circle Φ4.65mm, designed for 1/4" Image Sensor. The 1/4" Image Sensor format uses the active area without heavy vignetting. BOSHI Optical Technology matches the 1/4" Image Sensor to the optical field. The 1/4" Image Sensor also keeps the module small.

• Field of View: Diagonal 119° Field of View, horizontal 81.6°, vertical 58°. This 119° Field of View gives expansive coverage and reduces camera count. The 119° Field of View is central to panoramic and surround applications. BOSHI Optical Technology tunes the 119° Field of View for tight spaces. The 119° Field of View also supports wide scene capture.

• TV Distortion: TV Distortion is 14.27% barrel type. This TV Distortion is predictable and repeatable for software correction. BOSHI Optical Technology uses TV Distortion deliberately for wide angle optics. The TV Distortion can be corrected to rectilinear output. The TV Distortion profile supports machine vision tasks.

• Chief Ray Angle: Chief Ray Angle below 6.63°. This Chief Ray Angle matches modern sensor microlens arrays. The low Chief Ray Angle suppresses cross talk and colour shift. BOSHI Optical Technology controls Chief Ray Angle for 1/4" Image Sensor compatibility. The Chief Ray Angle remains stable across the field.

• Mechanical Back Focal Length and Total Track Length: Mechanical back focal length is 2.46mm ±0.2mm. Total track length is 8.90mm ±0.3mm. These values give room for an IR cut filter or cover glass. BOSHI Optical Technology keeps the Compact Fixed Lens slim for space constrained housings.

• Relative Illumination: Relative illumination is 30.0%. This value keeps corner brightness usable. BOSHI Optical Technology notes that 30.0% is typical for a Wide Angle Optical Lens. The Wide Angle Optical Lens can use sensor gain or digital shading correction.

• Mount: M12 Lens Mount standard thread. The M12 Lens Mount offers quick attachment and broad compatibility. BOSHI Optical Technology uses M12 Lens Mount for easy integration. The M12 Lens Mount supports off the shelf holders.

• Summary: For Surveillance and Automotive Imaging, the 2.9mm Focal Length, F3.4 Aperture, 1/4" Image Sensor, 119° Field of View, TV Distortion, Chief Ray Angle, M12 Lens Mount, Wide Angle Optical Lens, and Compact Fixed Lens form a balanced optical set. BOSHI Optical Technology aligns these parameters for Surveillance and Automotive Imaging.

2. Performance Advantages  

• Ultra Wide Coverage: The 119° Field of View covers broad scenes with one camera. This 119° Field of View is useful for Surveillance and Automotive Imaging. BOSHI Optical Technology pairs the 119° Field of View with 2.9mm Focal Length. The 2.9mm Focal Length keeps the view wide.

• Correctable TV Distortion: TV Distortion is 14.27%. This TV Distortion avoids costly zero distortion designs. BOSHI Optical Technology provides TV Distortion that digital processing can correct. The TV Distortion keeps the Wide Angle Optical Lens compact.

• Low Chief Ray Angle: Chief Ray Angle below 6.63°. This Chief Ray Angle reduces colour shading. BOSHI Optical Technology matches Chief Ray Angle to 1/4" Image Sensor pixel wells. The Chief Ray Angle supports natural colour balance.

• Thermal Stability: The Wide Angle Optical Lens uses 3 glass elements. This Wide Angle Optical Lens remains stable from minus 20°C to 70°C. BOSHI Optical Technology builds the Wide Angle Optical Lens for outdoor and vehicle use. The Wide Angle Optical Lens supports Surveillance and Automotive Imaging.

• Compact Integration: The Compact Fixed Lens has 8.9mm total track length. This Compact Fixed Lens works with M12 Lens Mount. BOSHI Optical Technology makes the Compact Fixed Lens easy to drop into existing modules. The M12 Lens Mount and Compact Fixed Lens reduce design effort.

• Balanced Aperture: F3.4 Aperture gives useful depth of field. The F3.4 Aperture reduces the need for auto focus. BOSHI Optical Technology selects F3.4 Aperture for indoor and outdoor light. This F3.4 Aperture supports face recognition at varied distances.

• Sensor Compatibility: 1/4" Image Sensor compatibility is built into the design. The 1/4" Image Sensor receives a matched Chief Ray Angle. BOSHI Optical Technology ensures the 1/4" Image Sensor uses its active area. The 1/4" Image Sensor format keeps the lens small.

• Illumination Control: Relative illumination is 30%. This level is normal for a Wide Angle Optical Lens. BOSHI Optical Technology allows gain or shading correction. The Wide Angle Optical Lens still gives usable edge brightness.

• Mount Flexibility: M12 Lens Mount is standard. The M12 Lens Mount allows quick mechanical attachment. BOSHI Optical Technology supports custom back focal length for M12 Lens Mount designs. The M12 Lens Mount fits many holders.

• Application Fit: Surveillance and Automotive Imaging gains from 2.9mm Focal Length, F3.4 Aperture, 1/4" Image Sensor, 119° Field of View, TV Distortion, Chief Ray Angle, M12 Lens Mount, Wide Angle Optical Lens, and Compact Fixed Lens. BOSHI Optical Technology balances these traits for Surveillance and Automotive Imaging.

3. Application Areas  

• Surveillance and Automotive Imaging: BOSHI Optical Technology serves Surveillance and Automotive Imaging with the 2.9mm Focal Length, F3.4 Aperture, 1/4" Image Sensor, and 119° Field of View. This 119° Field of View covers wide areas. The TV Distortion is correctable. The Chief Ray Angle is low. The M12 Lens Mount eases retrofits. The Wide Angle Optical Lens and Compact Fixed Lens fit tight housings.

• Security and Surveillance: Dome cameras, doorway viewers, and corridor monitors use 119° Field of View. The 2.9mm Focal Length captures room corners. The M12 Lens Mount simplifies upgrades. BOSHI Optical Technology designs for Surveillance and Automotive Imaging.

• Automotive and Mobility: Surround view, blind spot, and rear view cameras use 119° Field of View. The Wide Angle Optical Lens gives thermal stability. The 1/4" Image Sensor compatibility supports compact modules. BOSHI Optical Technology meets Surveillance and Automotive Imaging needs.

• Machine Vision and Robotics: Object detection and navigation use TV Distortion correction. The Chief Ray Angle supports measurement accuracy. The Compact Fixed Lens fits drones and scanners. BOSHI Optical Technology provides predictable TV Distortion.

• Consumer Electronics: Smart doorbells, VR and AR headsets, and 360° conferencing cameras use 1/4" Image Sensor and 119° Field of View. The F3.4 Aperture supports face recognition. The M12 Lens Mount keeps assembly simple. BOSHI Optical Technology serves Surveillance and Automotive Imaging and consumer imaging.

• Industrial IoT and Embedded Vision: Production line inspection uses 119° Field of View. The 2.9mm Focal Length inspects large PCB panels. The Compact Fixed Lens and M12 Lens Mount fit embedded systems. BOSHI Optical Technology offers customization for Surveillance and Automotive Imaging and embedded vision.