STREET LIGHT TABLE LAMP HOW TO
STREET LIGHT TABLE LAMP DRIVER

After calculation of the intensity, we put all the intensity values making a C-ɣ table as per their angular position. Where, E P is the Illuminance at point P on the road and h is the vertical height from the point P to the luminaire. Then intensity I is calculated from the equation of the Illuminance, Initially on the surface of the road, point specific Illuminance values are collected. In C-ɣ photometry, C is the angle on the road surface plane and ɣ is the angle created between vertical axis of the luminaire and lumen throwing direction, or in other word, ɣ is the angle of incidence. And it is graphically represented by polar intensity diagram.īut Intensity distribution of the road light is measured following C-ɣ photometric convention. Intensity distribution of the street light luminaire is measured with mirror Goniophotometer. The roads are separated with the separators.Types of Road to Implement Various Street Lighting Design SchemesĪs per CIE 12 roads are broadly classified into five types. It helps a viewer to guess how far another object is from his position. Effectiveness of Visual Guidance is also an important factor.It is very much essential to make an object as per its size and dimension. Lamp Spectra for Visual Sharpness depends on the Proper Luminaries.Disability glare is not a strong factor, rather discomfort glare is a common factor due to unplanned street lighting scheme. There are two types of glare created by the street light luminaires, first type is disability glare and second type is discomfort glare. Glare means visual discomfort due to high luminance. Degree of Glare Llimitation is always taken into Design Scheme.It is termed as longitudinal uniformity ratio as it is measured along the line passing through the viewers position in the middle of the traffic facing the traffic flow. Luminous uniformity means the ratio between minimum luminance level to average luminance level, i.e.

To provide visual comfort to the viewer’s eyes, enough luminous uniformity is needed. As per CIE, 5m away from the road on both sides will be lit by Illuminance level at least 50% of that on the road.

STREET LIGHT TABLE LAMP DRIVER

If the street is brighter, then darker surroundings makes the car driver adapted, unless the driver will be unable to perceive the objects in the surroundings. Luminance always influences the contrast sensitivity of the obstructions with respect to the back ground. CFL (used in Lanes or streets only not widely) Main Factors in the Street Lighting Design Scheme.Various types of lamps are used in street lighting luminaires. Clear view of objects for comfortable movement of the road users.Illuminated environment for quick movement of the vehicles.The main objectives of street lighting design scheme are given below: Main Objectives of Street Lighting Design Scheme Any fixed aimed luminaire which does not have this type of intensity distribution is called an area luminaire.The intensity distributions up and down the narrow strip are generally the same.Roadway lighting luminaires have particular intensity distributions which are desired to light long narrow horizontal stripes on one side of the luminaire, while minimizing the intensities on the other side of the luminaire.Roadway luminaires are mounted horizontally and thus have fixed vertical aiming.

The basic features of a street lighting luminaires are: Creating a secure environment for habitation Basic Features of Street Light Luminaires.Assisting in the protection of buildings/property (discouraging vandalism).Reducing the risk of night-time accidents.Street lighting plays an important role in: Street lighting schemes never brings the same appearance of daylight, but provide sufficient light for people to see important objects required for traversing the road. Street lighting design is the design of street lighting such that people can safely continue their travels on the road.

STREET LIGHT TABLE LAMP HOW TO

How to Compute Point Specific Illuminance from Iso-Lux Diagram of the Street Light?.

Point Specific Luminance (L) on the Road Surface.

How to Compute Average Illuminance on the Road Surface?.

What are the Street Light Design Parameters?.

Pole Arrangement Schemes in Street Lighting Design.

Spread and Throw Angle of Street Light Luminaire.

Types of Road to Implement Various Street Lighting Design Schemes.

Main Factors in the Street Lighting Design Scheme.

Which Lamps are Used in Street Lighting?.

Main Objectives of Street Lighting Design Scheme.

Basic Features of Street Light Luminaires.

Street light table lamp