What are the criteria for lighting considerations? What is the height standard for car headlights

GB Safety requirements for tungsten lamps for general lighting in homes and similar occasions.

GB Safety requirements for tungsten halogen lamps for general lighting in homes and similar occasions.

GB 16844-1997 Safety requirements for self-ballasted lamps for general lighting.

GB 18100-2000 Regulations for the installation of lighting and light signaling devices for two-wheeled motorcycles and mopeds.

GB 18408-2001 Light distribution performance of rear license plate lighting devices for automobiles and trailers.

GB 19043-2003 Energy efficiency limits and energy efficiency classes of double-ended fluorescent lamps for general lighting.

GB 19044-2003 Energy efficiency limits and energy efficiency classes of self-ballasted fluorescent lamps for general lighting.

Controls for GB lamps Part 5: Special requirements for DC electronic ballasts for general lighting.

Controls for GB lamps Part 6: Special requirements for DC electronic ballasts for lighting in public transport vehicles.

Controls for GB lamps Part 7: Special requirements for DC electronic ballasts for aircraft lighting.

Controls for GB lamps Part 8: Special requirements for DC electronic ballasts for emergency lighting.

GB 4785-2007 Regulations for the installation of external lighting and light signaling devices for automobiles and trailers.

GB Safety Requirements for Ultra-Low Voltage Lighting Systems for Tungsten Lamps.

What are the criteria for lighting considerations? The criteria for lighting consideration should be in terms of appearance and shape and degree of power saving, whether the gaffer will cause some damage to the eyes and things, or some impact.

In physics, lumens are the physical quantities that describe the intensity of lighting. Its meaning is the intensity of light per unit area.

Don't use a wall when dimming the lights, drive the car to the flat road, adjust the low beam point at a distance of 30 meters and the two points coincide together, the high beam point can be adjusted to be parallel to the ground, and the wall is to adjust the two high beam points parallel.

Park the car at a distance of meters from the front of the car, making sure that the ground is level and that the car and the wall are vertical. Measure the height from the ground to the center of the headlight and measure the distance between the two headlights. Post a horizontal masking tape on the wall one meter lower than the headlights, and make sure the tape is directly in front of the car**.

Adjust the vertical adjustment screws until the headlight beam is in the middle of the wall tape. Continue to adjust the vertical adjustment screws until the headlight beam is straight forward, and to ensure the correct adjustment, measure the height of the wall beam and the height of the headlight to make sure that the values are equal.

A car is a vehicle that can be driven by its own power and does not need to be erected by rails or electricity, and can be motorized. Broadly speaking, a vehicle with four wheels is generally called a car.

Opening the front hood can assist in adjusting the headlight height, and the cab has a height adjustment.

The original car factory does not allow high beams to install xenon lamps, A6 is a follow-up bifocal lens, the high beam you refer to should be a daytime running light, the domestic driving computer is shielded, it is not lit.

I was also puzzled by this problem, and later a repair shop master told me that when dimming the lights, do not use the wall, drive the car to the flat road, the low beam point is adjusted at a distance of 30 meters and the two points coincide together, the high beam point is adjusted to be parallel to the ground, and the wall is adjusted to be parallel to the two high beam points.

Under the new standard, the luminous intensity of the high beam beam of each headlamp of the car should meet the following requirements:

Two-lamp system: 12000cd; Four-lamp system: 10000cd.

During the test, the power supply system can be in a state of charge.

A four-lamp car is considered qualified when two symmetrical lamps meet the requirements of the two-lamp system.

Standard for Vertical Offset:

According to the "Technical Conditions for Motor Vehicle Operation Safety" (GB7258-2012), the headlamp shines on the screen at a distance of 10 m, and the height of the corner or midpoint of the cut-off line of the low-beam beam of the passenger car headlamp shall be the reference center height of the headlamp, the same below), and other motor vehicles shall be.

A standard light source is an artificially matched color observation environment that should have the following conditions: A luminescent light source with a color temperature of 6500K (or 5000K) and a color rendering index greater than 95. The illumination in the environment should be between 10 and 40, the illumination uniformity in the environment should be greater than 85, the background color in the environment should be neutral gray, and the environment should not be disturbed by other light or colors.

The standards for school classroom lighting are as follows (the following are the national standards):

The plane of the specified illumination of ordinary classrooms, history classrooms, calligraphy classrooms, ** classrooms, language classrooms, and reading rooms is the classroom desktop, with an average illumination of 300lx, a unified glare value of 19ugr, and a color rendering index of 80ra.

The plane of the specified illumination of science classrooms and laboratories is the experimental tabletop, with an average maintenance illumination of 300lx, a unified glare value of 19ugr, and a color rendering index of 80ra.

The plane of the specified illumination of the computer classroom is the machine surface, the average maintenance illumination is 300lx, the unified glare value is 19ugr, and the color rendering index is 80ra.

The plane of the specified illumination of the dance studio is the ground, the average illumination maintenance is 300lx, the unified glare value is 19ugr, and the color rendering index is 80ra.

The plane of the specified illumination of the art classroom is the classroom desktop, with an average maintenance illumination of 300lx, a unified glare value of 19ugr, and a color rendering index of 90ra.

The plane of the specified illumination of the office and health room is the desktop, and the average illumination is 300lx, the uniform glare value is 19ugr, and the color rendering index is 80ra.

The plane of the specified illumination of the corridor and stairwell is the ground, the average maintenance illumination is 300lx, the unified glare value is 19ugr, and the color rendering index is 80ra.

The school classroom lighting requirements are as follows:

1.All classrooms should be equipped with artificial lighting;

2.The maintenance average illumination value on the classroom desktop should not be less than 300lx, and its illumination uniformity should not be lower;

3.The classroom blackboard should be equipped with local lighting, and the average illumination should not be less than 500lx, and the illumination uniformity should not be lower;

4.The classroom should use a light source with a color temperature of 3300K-5500K, and the color rendering index of the light source should not be less than 80;

5.The Uniform Glare Value (UGR) of the classroom should not be greater than 19;

6.Under the condition of maintaining the average illuminance value of 300lx, the current value of classroom lighting power density should not be greater than 11W m, and the target value should be 9W m;

7.When the illuminance is calculated in the lighting design, the maintenance factor should be taken.

The lighting requirements of school classrooms must be able to effectively reduce the rate of myopia! Anti-glare, anti-blue light, no flicker, moderate color temperature, high CRI and high uniformity.

Classroom lights are required to be flicker-free, illuminate, uniform, anti-glare, and can take care of each student's eyesight. The panel lights of this house are quite suitable for classroom lights.

It has to be all-encompassing.

It is a wide lighting area.

Leaves less shadow.