www.sunex.com
DSL203
Digital Imaging Optics
SUBJECT TO CHANGE WITHOUT NOTICE
Sunex Inc.
Telephone: +001 760.602.0988
Order samples online at
www.optics-online.com
- 1 -
Wide Angle Security Lens
Description
The DSL203 lens is a miniature, wide-angle lens
optimized for security and automotive applications. Great
resolution and an all-glass design means stable, high-
quality imaging for a variety of indoor and outdoor
applications.
Key Features
•
Designed for multi-megapixel resolution sensors
•
Full field of view of up to 140
°
•
High brightness, F/2.6 aperture
•
All glass design provides environmental stability
Distortion: f-
θ
type for easy de-warping
(image height is
proportional to the input angle h=f*
θ
where f is the focal length).
Applications
•
Security and surveillance
•
Automotive rear view cameras
Table 1. Optical Parameters
Sunex PN: DSL203
Description
Wide Angle Lens
Design Imager Format
1/3”
Focal Length [mm]
2.8
F/#
2.6
Design Image Circle [mm]
5.7
Diagonal Field of View
140
°
Resolution
See MTF chart
Distortion
[
f-
θ
]
-18% from
f-
θ
Corner Chief Ray Angle [degrees]
<16
°
Relative Illumination
92%
Mechanical
See drawing below
Back Focal Length [mm]
4.9
Lens Barrel Thread
M12x0.5
IR Cut-off Filter
See below
Table 2. Horizontal FOV by sensor format and size
for sensor format
1/2.5" 1/3" 1/3.2" 1/4”
with horizontal width (mm)
5.6
4.8
4.5
3.6
the HFOV is
140
°
111
°
102
°
78
°
