Suggestion for S-mount solution
with S-C mount conversion adaptor ring SCARToshiba Teli Corporation
May 28th 20204000-0355-2005© 2020 Toshiba Teli Corporation

Contents

01 Introduction
02 Overview of SCAR
03 Solution 1 : 360° fish eye camera
04 Solution 2 : Camera for positioning
05 Solution 3 : Camera for AI-IoT
06 Applicable lens

© 2020 Toshiba Teli Corporation2

01Introduction
Explanation about S-mount & S-mount lens

© 2020 Toshiba Teli Corporation

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Introduction

About S-mount & S-mount lens

1Small size lens mount mainly forboard camera etc.
• Mounting screw : M12 x 0.5• Flange back is not specified as noflange aspect• Standardize as JIIA LE-005• Lens with narrow thread pitch isapplied among several lenses forboard camera•

2What’s S-mount?
•••3

Advantage ofS-mount lensSmaller than C-mount lens
generally
Wider variation of focal length.
Substantial of fish eye and single
focus one
Comparatively reasonable cost•
•
•
•

•
•

can be fixedeasily by SCAR•

Disadvantage ofS-mount lensMost of lenses for board camera
have focus and aperture fixed
Most have dark open F number(about F2~F2.8)
Disadvantages in optical
performance comparing withC-mountNo flange surface

Lens has a risk to contact the sensor
as no mechanical stopper
Need to consider how to fix the lens
after focus setting. (screw oradhesive)© 2020 Toshiba Teli Corporation

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02

Overview of SCAR
Explanation about S-C conversion adaptor of SCAR

© 2020 Toshiba Teli Corporation

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Application & structure of SCAR

SCAR expands application of C-mount camera
For FA・MV• As S-mount lens is smaller, it can build smaller
system than that with C-mount lens.

Closer WDSmaller installation place

For Surveillance・security•

Application of FA-MV camera to surveillancesecurity (Integrated solution of FA & surveillance)

Application of fish eye lens toFA360° system

Special effect by super wide angle & fish eye lensSmallsuper wide angle-fish eye© 2020 Toshiba Teli Corporation

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Application & structure of SCAR

Structure of SCAR
S-C mount conversion adaptor (SCAR)
Lens can be fixed without side screw oradhesive.

S-mount lens
(example : E1222KRY)* Japanese design registration No. 1642948© 2020 Toshiba Teli Corporation

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03

Solution 1 : 360° Fish eye camera
Explanation about a solution with S-mount lens

© 2020 Toshiba Teli Corporation

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360° Fish eye camera

S-mount lens is better for fish eye lensSmall and low cost camera module can be built with S-mount lens.
360° fish eye camera
・ Fish eye lens with over 180° view angle
performs shooting all around optical axis
・ Image processing technology ofIMMERVISION is well known as asoftware to view developed all aroundimage.
・ S-mount lens supporting
IMMERVISION is available.

・ Fish eye lens for 35 mm SLR and C-mount isavailable in the market. However, they are invarious styles and relatively costly.
・ CBC is selling S-mount lenses supporting
IMMERVISION technology.

Small & IMMERVISION supported
S-mount lens is better.
CBC’s lens (refer pp. 17-18)

・ L1028KRW (1/2.5 type)・ E1222KRY / E122KF3RY (1/1.7 type)© 2020 Toshiba Teli Corporation

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04

Solution 2 : Camera for positioning
Explanation about a solution with S-mount lens

© 2020 Toshiba Teli Corporation

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Camera for positioning

Positioning camera does not require high resolution lensSmall & low cost camera module can be built with S-mount lens
Alignment mark for positioning
Simple & clear shape for easier image
processing(mark sample)

・ High resolution lens is large and costly as it
consists of more lens components
・ Shape of alignment mark does not require highlens resolution (detectable even in low frequency)

Small & low cost S-mount lens is good enoughLow resolution is acceptable(Low spatial frequency)

High resolution is required(High spatial frequency)© 2020 Toshiba Teli Corporation11

05

Solution 3 : Camera for AI-IoT
Explanation about a solution with S-mount lens

© 2020 Toshiba Teli Corporation12Camera for AI

Camera for AI does not require high-definition image quality
Small & low cost camera can be built with S-mount lensUse of image AI analysis (example)
・ Inspection in food factory
・ Inspection of industrial products
・ Medical pattern analysis
・ Bill reading for accounting system
・ Image classification
・ Surveillance system for security
・ Face recognition・ Sentiment analysis
・ Optical character reading, OCR
・ Eye tracking

・ With mainly fixed aperture and low cost
specifications, S-mount lens is not good for highdefinition image quality.
・ As decision is made with weighted feature point incase of AI, specific high image quality is not required.
Small & low cost S-mount lens is good enough© 2020 Toshiba Teli Corporation13

Camera for positioning

Small size is better in camera for IoT
Small & low cost camera module can be built with S-mount lens
IoT camera
・ Camera to detect status of things as data
- brightness- human detection- object detection- contaminants detection- color identification- location-displacement detection
・ To digitize analogue indication- measuring instrument- location, existence・ Narrow installation space, reasonable cost &simplicity are required- Installation in limited space- Low cost
- Easy operation
Small & low cost S-mount lens is good enough.

© 2020 Toshiba Teli Corporation

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06

Applicable lensIntroduction of S-mount lens for BU camera
This presentation is supported by CBC Corporation© 2020 Toshiba Teli Corporation

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Applicable lenses to camera w/o optical glass (using BU series)

CBC’s mega pixel fixed focus board lens (1/2” fixed aperture)
Model No.

Focal Length

F/#H0320KP

3 mm

2.0

H0624KP

6 mm

2.4

H0924KP

9 mm

2.4H1620KP

16 mm

2.0

H2520KP

25 mm

2.0

[Note] Please check availability before using above lenses

H0320KP

H0624KP

H1620KP

H2520KP

H0924KP© 2020 Toshiba Teli Corporation

16Applicable lenses to camera w/o optical glass (using BU series)

CBC’s mega pixel board lens (360° fish eye lens)Model No.

FocalLength

F/#Img Sz

L1028KRW

1.05 mm

2.8

1/2.5
type

E1222KRY

1.2 mm

2.2

1/1.7
type

H1328KP (*)

1.3 mm

2.81/2type

E1628KRY

1.65 mm2.81/1.7
type(*) H1328KP is made-to-order product[Note] Please check availability before using above lenses

Stereoscopic projection of E1222KRY is moreconvenient than Equidistant projection of E1628KRY
because the marginal part can be seen larger.
© 2020 Toshiba Teli Corporation

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Applicable lenses to camera w/o optical glass (using BU series)

Fish eye lens with IR cut filter (IRCF)
E1222KF3RY as a 360° fish eye lens with IRCF is confirmed to be useful in acamera without optical glass.
Model No.

FocalLengthF/#Img Sz

E1222KF3RY

1.2 mm

2.21/1.7 type

Only above is the standard model with IRCF among
CBC’s fish eye lenses.

[Note] Please check availability before using above lenses.

As mechanical back is only 4 mm, the camera touse has to be checked not to have any
mechanical interference© 2020 Toshiba Teli Corporation18

Applicable lenses to camera with optical glass (using BU series)

CBC’s fixed aperture board lens for mega pixel (1/2” fixed aperture)
Model No.

Focal Length

F/#3 mm

2.0H0624KP

6 mm

2.4H0924KP

9 mm

2.4H1620KP

16 mm

2.0H2520KP

25 mm

2.0

H0320KP

H0320KP cannot be used as lens barrel contacts optical glass.
[Note] Please check availability before using above lenses.

H0320KP

H0624KP

H1620KP

H2520KP

H0924KP© 2020 Toshiba Teli Corporation

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Applicable lenses to camera with optical glass (using BU series)

CBC’s mega pixel board lens (360° fish eye lens)Model No.
L1028KRW
E1222KRY
H1328KP
E1628KRY

Focal
LengthF/#Img Sz

1.05 mm2.8

1/2.5 type

1.2 mm2.2

1/1.7 type

1.3 mm2.8

1/2 type

1.65 mm2.81/1.7 type

Optical glass

Lens barrel contacts optical glass.
Lens barrel contacts optical glass.
Lens barrel contacts optical glass.
Lens barrel contacts optical glass.

No CBC’s 360° fish eye lens cannot be used.

Cannot use because it contacts optical glass asback focus and short mechanical back.
© 2020 Toshiba Teli Corporation

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Thank you© 2020 Toshiba Teli Corporation21