Social Activities
Activities to Improve Safety and Security
The KOITO Groupʼs basic management policy is to create customer needs and contribute to the progress of society,guided by the theme of “Light.” Identifying “reduction of trafﬁc accidents” as one of our materiality, the KOITO Groupdevelops products which contribute to materialize a safe and secured automotive society under our corporate message“Lighting for Your Safety.”
To further improve the performance of LED headlamps and ADBs, we are also promoting R&D activities on Advanced
Driving Assistance System (ADAS), next-generation lamps and various sensors (LiDAR, cameras, etc.) which arecompatible with autonomous driving.
The KOITO Group will continue to contribute to the improvement of safety and security in an automotive society
through developing and supplying safe and high-quality products and services using our technologies.

Development of Technologies and Products Contribute to Improve Safety and Security●LED Headlamps■Evolution of light sources

KOITO has been developing high-output andhigh-performance light sources to create headlamps thatprovide brighter light to greater distances for safenighttime driving.
LED headlamps are KOITOʼs main products. They help
drivers to gain clear night views as they are bright, turn on
instantly and are close to daylight. KOITO is also
developing laser headlamps to further improve distancevisibility.

Luminous ﬂux (lm)
10 4

Gas discharge
bulb

10 3

Semi-sealed
beam

Sealed beam

Incandescent bulb

10 2
10 1
10 0

Acetylene
gas lamp
Kerosene
lamp

Candle●Adaptive Driving Beam (ADB)
KOITO has developed a headlamp system called Adaptive
Driving Beam (ADB) that automatically controls the light
distribution pattern of the high beam and ensures widefront visibility for drivers by enabling driving with highbeams all the time while preventing preceding or
oncoming vehicles from glare.
In addition, KOITO is conducting R&D activities on ADB
to further improve safety during nighttime driving by
providing ﬁner light distribution.

LED

Halogen bulb

Semi-sealed beam
headlamp

1900

Sealed beam
headlamp

Halogenheadlamp

1940

1960

1920

Gas discharge
headlamp

1980

LED headlamp

2000

2020 (CY)■Image of ADB photometryHigh-beam lighting range

Please refer to the Growth Strategies from P.18
to P.19 of this report.

High Beam Contributes to
Reduce Accident Mortality
The number of trafﬁc accident deaths in Japan is about
3,000 per year. Among them, fatal accidents occur mostfrequently at dusk, from 17 to 19 oʼclock, and in particular,“vehicle-to-pedestrian” accidents occur two to four times
larger than those in daytime. It can be inferred that
deterioration of driversʼ visibility can be one of the causes
for trafﬁc accidents with pedestrians. In addition, ananalysis of “vehicle-to-pedestrian” fatal accidents
occurrence shows that a considerable number of accidents
were likely to have been avoided if the driver had utilized
high beam.
High beam, which allows drivers to detect pedestrians
from a greater distance, is effective in preventing trafﬁcaccidents in dark driving conditions.

48

KOITO INTEGRATED REPORT 2022

■Number of “vehicle-to-pedestrian” death accidents bytime period (2015‒2019 cumulative)
Daytime(excluding dusk)

Nighttime

153

Approx. 4 times

Approx. 2 times
295.2(excluding dusk)

Dusk

595(Cases) 0100200300400500600■Probability of collision avoidance by high beam

99（44%）

126（56%）■Accidents that are likely to havebeen avoided■Accidents with a low probabilityof collision avoidance
225 (cases) in total*Prepared based on the National Police Agencyʼs “Prevention of Nighttime
Pedestrians Accidents through the Advanced Use of High Beam”
https://www.npa.go.jp/bureau/trafﬁc/anzen/highbeam.html