Examining the Color Space Explaining Subjective Contrast of Chromatic Patches by Using Equivalent Color Difference

Masami Kono, Naoya Hara, Shigeko Kitamura, Haruyo Ohno

Journal of the Illuminaing Enginering Institute of Japan   8-94   2010.8

Visual and Task Performance in Cutting and Peeling of Food - Appropriate Lighting Environment for Making a Meal in the Kitchen -

Shino OKUDA, Yoko FUKUMOTO, Naoya HARA, Wataru IWAI

Journal of Environmental Engineering (Transactions of AIJ)   75-649   2010.3

Appropriate Lighting Condition for Makeup in the room in the house

Shino Okuda, Sayaka Ajisaka, Naoya Hara, Wataru Iwai

DWCLA human life and science   2-00   11 - 16   2010.2

Duration necessary for complete color adaptation at the change of lighting between chromatic and white color

Journal of the Illuminaing Enginering Institute of Japan   2-94   2010.2

The Effect of the Momentary Change of Light Color in Rating of Brightness and Impression

Makiko Uda, Naoya Hara, Masami Kono

Journal of the Illuminaing Enginering Institute of Japan   2-94   2010.2

DETERMINATION METHOD OF ADAPTATION LUMINANCE IN A ROOM WHICH HAS COMPLEX LUMINANCE DISTRIBUTION

Journal of Environmental Engineering (Transactions of AIJ)   74-644   2009.10

Effect of Equivalent Luminance Contrast as One of the Visual Factors for Readability of Chromatic Documents

Yuya Konishi, Naoya Hara

Journal of the Illuminaing Enginering Institute of Japan   11-92 ( 11 )   787 - 793   2008.11

Consideration on Additivity of Adaptation Luminance Increase by High Luminance Surfaces in Allover Visual Field - Study on Measurements of Effective Luminance Function F(θ) Part2 -

IKEGAMI Yoko, HARA Naoya, INOUE Youko

Journal of Environmental Engineering (Transactions of AIJ)   73-626   2008.4

A research on attitude of students to global environment - A case study on university students majoring in architectural field in Kinki area Japan -

Yoshihiro Kametani, Masako Baba, Naoya Hara, Takeshi Masui, Yasuhito Kawai, Shintaro Yao

Journal of architecture and planning (Transactions of AIJ)   616 ( 616 )   207 - 214   2007.6

EXAMINATION OF THE VALIDITY OF VARIOUS BRIGHTNESS INDEXES BASED ON THE BRIGHTNESS RATING IN THE ROOM WHICH HAS A SCENE THROUGH THE WINDOW

Naoya HARA

Journal of Environmental Engineering (Transactions of AIJ)   615.0 ( 615 )   9 - 14   2007.5

The Influence of Lightness, Chroma and Hue of Chromatic Letters against an Achromatic Background on Readability and Equivalent Luminance Contrast

Hara Naoya, Noguchi Tarow

Journal of Light & Visual Environment   41669.0   2006.4

Contrast effect of colors and textures used for living environment

Shigeko Kitamura, Masami Kono, Naoya Hara, Haruyo Ohno, Tarow Noguchi

Journal of housing research foundation   2-00   2006.3

Influence of Lightness, Chroma and Hue of Chromatic Letters on Readability and Equivalent Luminance Contrast under the Achromatic Background

Naoya Hara, Tarow Noguchi

Journal of the Illuminaing Enginering Institute of Japan   32448.0   2004.11

' Equi-Readability Surface ' of three visual factors corresponding to various design level about readability of documents

Naoya HARA, Ryuji SATOH

Journal of Environmental Engineering (Transactions of AIJ)   575.0   2004.1

Equivalent Luminance Contrast Representing the Relationship between Color Difference and Readability of Chromatic Documents

Naoya HARA, Ichiro NAMBA, Tarow NOGUCHI

Journal of Light & Visual Environment   41725.0   2003.12

Influence of Background Luminance, Luminance Contrast and Chroma on the Readability and Equivalent Luminance Contrast of Documents

Naoya HARA, Ichiro NAMBA, Tarow NOGUCHI

Technology Reports of Kansai University   45   2003.3

The Relationship between Readability and Conditions of the three Visual Factors of the Letters in a Documents

原直也, 佐藤隆二

Technology Reports of Kansai University   43   2001.3

THE ELEMENT OF VISUAL ENVIRONMENT RELATED TO VISIBILITY OF PICTURES PROJECTED BY OVERHEAD PROJECTOR - Survey on visual environment related to visibility in room where a visual apparatus is used Part 2 -

Naoya HARA, Ryuji SATOH

Journal of architecture, planning and environmental engineering(transactions of AIJ)   527   2000.1

THE USAGE OF VISUAL APPARATUSES AND THE PROBLEM IN VISIBILITY OF PROJECTED PICTURES - Survey on visual environment related to visibility in room where a visual apparatus is used Part 1 -

Naoya HARA, Ryuji SATOH

Journal of architecture, planning and environmental engineering(transactions of AIJ)   517   1999.3

CALCULATION METHOD OF VISIBILITY FACTORS IN THE PICTURE PROJECTED BY A OVERHEAD PROJECTOR

Ryuji SATOH, Naoya HARA, Li Xin WANG

Journal of architecture, planning and environmental engineering(transactions of AIJ)   493 ( 493 )   17 - 23   1997.3

博物館展示物の光放射による損傷の抑制

JCIE 翻訳出版物

日本照明委員会  2005 

APPROPRIATE RANGE OF THE ILLUMINANCE COMBINATION OF TASK-AMBIENT LIGHTING

Hara Naoya, KATO Mika

2012.9 

Simplified calculating Model of Floor Illuminance in Fire Smoke

Yuki AKIZUKI, Naoya HARA, Takeyoshi TANAKA

2012 

Evaluation of Lighting Environment Composed of Multiple Luminaries and Space(at the kitchen space)

Naoya HARA

2011.9 

Effect of Illuminance and Correlated Colour Temperature on Visibility of Food Colour in Making Meals

Shino OKUDA, Yoko FUKUMOTO, Naoya HARA, Hiroshi IWADE, Wataru IWAI

2010.10 

INFLUENCE OF GRADUALLY DIMMING LIGHT ENVIRONMENT ON BRIGHTNESS-RELATED RATING

Hara Naoya, Kato Mika, Kono Masami, Okajima Katsunori

2010.9 

Evaluation method of visibility by effect luminance considered individual visual acuity - The influence of age and visual acuity on intraocular scattering light -

IKEGAMI Yoko, INOUE Youko, HARA Naoya

2010.9 

BRIGHTNESS PERCEPTION UNDER THE GRADUALLY DIMMING LIGHT ENVIRONMENT

Hara Naoya, Kato Mika, Kono Masami, Okajima Katsunori

2010.9 

Calculating Method of Evacuee’s Behavior based on the Floor Illuminance in Fire Smoke Estimated by Two Layer Zone Model

Yuki AKIZUKI, Naoya HARA, Takeyoshi TANAKA

2009.7 

Study on the Downward Equivalent Reflectance of the Smoke Layer

Yuki Akizuki, Naoya Hara

2009.5 

Appropriate Lighting Conditions for Makeup

Shino Okuda, Sayaka Yamaguchi, Naoya Hara, Wataru Iwai

2009.5 

Model equation for downward equivalent reflectance of interface of smoke layer

Yuki Akizuki, Naoya Hara

2009.4 

Fundamentals of adaptation luminance in visual field on complex luminance distribution: directionality of adaptation luminance increase

Yoko Ikegami, Naoya Hara, Youko Inoue

2009.4 

Study on apprpriate lighting environment for the kitchen

Yoko Fukumoto, Shino Okuda, Naoya Hara, Wataru Iwai

2009.4 

Effect and acceptability of difference of color temperature at a residential interior-lighting

N. HARA, M. UDA

2008.7 

Subjective contrast between chromatic patch and achromatic background under several colored lights

M. KONO, H. OHNO, N. HARA, K. TAKAHAMA, T.HIRAGA, S. TAMURA

2008.6 

Contrast effect of colors and textures Part 2: Variation on subjective contrast of textures along with incident angle

S. Kitamura, M. Kono, N. Hara, H. Ohno

2007.7 

Contrast effect of colors and textures Part 1: Subjective contrast of the visual difference between chromatic patch and the background of N7

M. Kono, N. Hara, S. Kitamura, H. Ohno

2007.7 

CALCULATING METHODS OF FLOOR ILLUMINANCE BY EMERGENCY LIGHTS IN FIRE SMOKE TAKING INTO ACCOUNT OF SMOKE ADHESION

Yuki AKIZUKI, Naoya HARA, Takeyoshi TANAKA

2007.7 

Adaptation luminance of the complex luminance distribution - directionality and additivity of the adaptation luminance increase -

IKEGAMI Yoko, HARA Naoya, INOUE Youko

2007.7 

INFLUENCE OF COLOR VISION DIFFERENCE ON READABILITY AND EQUIVALENT LUMINANCE CONTRAST OF CHROMATIC DOCUMENTS

Hara Naoya, Konishi Yuya

2007.7 

Applying the geodesic dome to daylight simulation - An intoroduction of the activities on the daylight simulation working group in Japan -

Nozomu Yoshizawa, Hirotaka Suzuki, Naoya Hara

2005.7 

Colorimetry Method for the Digital Camera

Hara Naoya, Noguchi Tarow

2005.7 

FRAMEWORK OF DAYLIGHT SIMULATION FOR BUILDING DESIGN

Hara Naoya

2004.3 

Reflex Directional Characteristics of interior materials for visual environmental planning

S. Kitamura, N. Hara, T. Noguchi

2003.6 

Equivalent Luminance Contrast for Evaluating Visibility of Chromatic Documents: the influence of the character colors, background luminance and luminance contrast of documents on readability

HARA Naoya, NAMBA Ichiro, NOGUCHI Tarow

2003.6 

Visibility in the Case of Eye Movement between Two Visual Fields with Different Background Luminance

Naoya HARA, Ryuji SATOH

1999.6 

Curved Surfaces of Various Visibility Level in the Three Dimensional Space Composed of Three Visual Factors

Ryuji SATOH, Mototsugu SIMOI, Naoya HARA

1999.6 

Questionnaire Survey on the Usage of the Visual Apparatus for Presentation in the Lecture Room

佐藤隆二, 原直也

1997.10 

Visibility of the Pictures Projected by Over Head Projector

Naoya HARA, Ryuji SATOH

1997.10