Optical lenses for cameras: explore the engineering behind the image capture. 

Learn more about camera optical engineering from our US-based engineering team

Camera optical lenses, such as our M12 lenses, are also known as objective lenses. These are multi-element optics constructed from plano-convex, bi-convex, plano-concave, bi-concave, meniscus, aspheric, achromatic doublets, and more. The characteristics of an optical lens contribute to the image quality output from a camera.

In our series of blog posts, we explore the engineering side of imaging optics. We describe the impact on perceptual metrics and considerations needed when building an embedded vision camera system. We also investigate how image quality impacts computer vision, as related metrics will impact lens selection.

Comment faire la mise au point d'un appareil photo 

Max Henkart

Mar 27, 2021
 
Que vous travailliez sur des caméras pour la robotique autonome, les systèmes de surveillance ou d'autres projets, la résolution et la netteté de l'image peuvent avoir un impact considérable sur les performances et la précision de votre système de vision embarqué. C'est pourquoi comprendre comment faire la mise au point de l'objectif d'une caméra est une compétence indispensable pour tout ingénieur en robotique ou amateur d'appareils photo. Dans ce guide, nous fournissons les techniques, les outils et les meilleures pratiques pour vous aider à effectuer une mise au point parfaite de l'objectif de votre caméra.
Comment faire la mise au point de l'objectif d'un appareil photo
Tolérances des diamètres et des filetages des objectifs M12 et des objectifs à monture S

Qu'est-ce qu'un objectif M12 ?

Max Henkart

16 août 2024
 
Un objectif M12 / S-Mount est un objectif miniature doté d'un filetage de 12 mm de diamètre. Malgré leur petite taille, ces objectifs peuvent être plus performants que les objectifs des appareils photo reflex numériques.

Comment nettoyer l'objectif d'un appareil photo

Max Henkart

Oct 27, 2023
 

Ever wondered about the best practices to clean a lens or image sensor? In this article we review the impact of a dirty lens and sensor.

We then discuss best practices and tools to clean optics.

Comment nettoyer l'objectif d'un appareil photo
CMOS Sensor Size Table and Format Type

CMOS Sensor Size

Max Henkart

Feb 16, 2021
 

The sensor format size and pixel size of digital camera impacts many performance attributes of camera.

The format type of a digital camera sensor is one of the most confusing and ridiculous concepts in the vision industry.

Angle et déséquilibre des rayons de la lentille principale

Max Henkart

20 janvier 2023
 
The chief ray angle (CRA) of a lens and the chief ray of a sensor affect image quality factors such as color shading and vignetting.

The magnitude of impact from CRA mismatch can be...
Le chef de la CRA, Ray Angle, n'est pas à la hauteur
What is the Resolution of a Camera Lens?

Resolution 101

Max Henkart

Jun 17, 2021
 
Even the experts interchangeably use the term "Resolution" when it actually refers to four different technical metrics. We ran across this misunderstanding during a 2018 conversation within the IEEE P2020 working group... We define and explore each in this article
Wide Angle Lenses and Fisheye Camera Lens Distortion

Wide Angle Lenses and Fisheye Camera Lens Distortion

Max Henkart

Apr 01, 2022
 

Optical distortion is a third order transverse aberration. The simple explanation is that distortion is the change in magnification (angular resolution) versus image height.

GoPro's marketing team was stuck with "Fisheye" because the first product used a cropped Fisheye lens. The newer GoPros use Wide Angle lenses which are not Fisheye lenses.

An Overview Of CCTV/CMOS Lens Mount Types

Max Henkart
Fri Jul 24 2020

One of the first questions inevitably asked when designing vision systems is a variant of the following:
- Will my CS Mount Lens work with my C Camera Mount?
- Will my C Mount Lens work with my CS Camera Mount?
- What is the difference between a S Mount lens and a M12 lens?

Objectifs à monture S
Raspberry Pi Video Conferencing

Raspberry Pi Video Conferencing

Max Henkart

Nov 25, 2020
 
A few early users of our lenses are actively involved in the RPi community and mentioned the products in a thread. And many people were curious "well what lens should I use?"

Image Quality Summit

Max Henkart

May 16, 2022
 

This post explores 12+ Image Quality Metrics and the impact on computer vision. The blog posts and video are from a talk that Max H gave during the Embedded Vision Summit 2022.

     

     

    Image Quality and Computer Vision are interdependent