November 22, 2025Nov 22, 2025
KCNA Naenara (En)

Automatic Perimetry

Date: 15/01/2020 | Source: Naenara (En) | Read original version at source

Researchers of Pyongyang University of Medical Science have recently developed an automatic perimetry.

This device consists of a mirror unit, background illumination subassembly, cupola, stimulus optic subassembly, CCD camera subassembly and others.

Its production cost is much cheaper than that of other countries.

Technical specifications

Power consumption: 60 W

Input voltage: 220 V

Input frequency: 50 Hz

Quantitative parameter: Sensitivity threshold/grayscale, false-positive answer/false-negative answer

Stimulus duration: 100 ms, 200 ms

Stimulus intensity: 0-32 dB

Stimulus position accuracy: Below 1mm

More From Naenara (En)

Child Health Day Marked in DPRK

Child Health Day Marked in DPRK

An event took place at Taedongmun Kindergarten in Central District of the DPRK on November 20 to mark Child Health Day. Present

November 22, 2025

An event took place at Taedongmun Kindergarten in Central District of the DPRK on November 20 to mark Child Health Day. Present

ICH Show Demonstrates Long History and Advantage of Korean Culture

ICH Show Demonstrates Long History and Advantage of Korean Culture

Some time ago the exhibition of intangible cultural heritage items-2025 took place at the foot of picturesque Moran Hill in the

November 22, 2025

Some time ago the exhibition of intangible cultural heritage items-2025 took place at the foot of picturesque Moran Hill in the

New Environment Created to Foster Experimental Education

New Environment Created to Foster Experimental Education

Many universities have created a new educational environment. This year Kim Il Sung University has equipped five experimental

November 22, 2025

Many universities have created a new educational environment. This year Kim Il Sung University has equipped five experimental

Pyongyang Optical Technology Company

Pyongyang Optical Technology Company

Established as a small optician’s nearly 40 years ago, the Pyongyang Optical Technology Company has now developed into a

November 22, 2025

Established as a small optician’s nearly 40 years ago, the Pyongyang Optical Technology Company has now developed into a

Living Monument–Bombycis Mulberry

Living Monument–Bombycis Mulberry

There is a bombycis mulberry in the vicinity of the Pohyon Temple in the DPRK’s famous mountain of Myohyang.The living monument is

November 22, 2025

There is a bombycis mulberry in the vicinity of the Pohyon Temple in the DPRK’s famous mountain of Myohyang.The living monument is

Our Own Things Should Be Valued

Our Own Things Should Be Valued

One day in November 2017, the respected Comrade Kim Jong Un visited the Sunchon Catfish Farm Seeing a swelling machine at the

November 21, 2025

One day in November 2017, the respected Comrade Kim Jong Un visited the Sunchon Catfish Farm Seeing a swelling machine at the

Experimental Hall for Education

Experimental Hall for Education

-Visit to the comprehensive experimental hall for education of Kim Chaek University of Technology- Kim Chaek University of

November 21, 2025

-Visit to the comprehensive experimental hall for education of Kim Chaek University of Technology- Kim Chaek University of

Exhibition Showcases New IT Landscape

Exhibition Showcases New IT Landscape

In October the national exhibition of IT successes-2025 was held at the Sci-Tech Complex on the banks of the Taedong River in the

November 21, 2025

In October the national exhibition of IT successes-2025 was held at the Sci-Tech Complex on the banks of the Taedong River in the

Chollima General Building-Materials Factory

Chollima General Building-Materials Factory

The Chollima General Building-Materials Factory, located in Rangnang District, Pyongyang, came into existence thanks to the

November 20, 2025

The Chollima General Building-Materials Factory, located in Rangnang District, Pyongyang, came into existence thanks to the

Korean Chess

Korean Chess

The Korean chess is a board game played by two persons or two pairs, each side moving 16 pieces in diverse ways to capture the

November 20, 2025

The Korean chess is a board game played by two persons or two pairs, each side moving 16 pieces in diverse ways to capture the

Korean Calligraphy

Korean Calligraphy

Korean calligraphy has a long history. Among the heritage items concerning the art is the epitaph of the monument to the Mausoleum

November 20, 2025

Korean calligraphy has a long history. Among the heritage items concerning the art is the epitaph of the monument to the Mausoleum

What Made Him Happy

What Made Him Happy

One day in August 2014, the respected Comrade Kim Jong Un visited the Chollima Tile Factory. He dropped in at the indoor

November 19, 2025

One day in August 2014, the respected Comrade Kim Jong Un visited the Chollima Tile Factory. He dropped in at the indoor

Kangwon Provincial Tree Nursery

Kangwon Provincial Tree Nursery

The Kangwon Provincial Tree Nursery produces over 20 million saplings a year. Saplings growing in wide outdoor cultivation

November 19, 2025

The Kangwon Provincial Tree Nursery produces over 20 million saplings a year. Saplings growing in wide outdoor cultivation

New Apparatus for Cultivating Plants Developed

New Apparatus for Cultivating Plants Developed

The Power-driven Machine Institute of the State Academy of Sciences has developed a multi-tiered rotary apparatus for growing

November 19, 2025

The Power-driven Machine Institute of the State Academy of Sciences has developed a multi-tiered rotary apparatus for growing

New Houses Built at Sinyang Farm in North Hamgyong Province

New Houses Built at Sinyang Farm in North Hamgyong Province

Proud entities of rural civilization have been created at the Sinyang Farm in Myonggan County, North Hamgyong Province of the

November 19, 2025

Proud entities of rural civilization have been created at the Sinyang Farm in Myonggan County, North Hamgyong Province of the

More Articles