Question

The luminous angle of led high power simulated lumen is equal

Answer 1

Whether the beam angle of a high-power LED simulated lumen (i.e., simulating the brightness output of a traditional light source) is uniform depends primarily on its optical design and packaging structure. The following is a brief analysis:

Definition of beam angle: The beam angle refers to the angle within the LED light source's light intensity distribution where the intensity drops to 50% of its central value. A uniform beam angle means that the light is evenly distributed in all directions, with no noticeable differences in brightness.

Design Impact: High-power LEDs typically utilize lenses or reflectors for secondary optical design to control the direction of light. Symmetrical designs (such as spherical lenses) achieve nearly uniform beam angles throughout 360°; directional designs (such as flat lenses) can bias the angle in a specific direction and become uneven.

Application Scenarios: A uniform beam angle is suitable for scenarios requiring all-around illumination (such as square lights), while a directional beam angle is suitable for long-range projection (such as street lights). When simulating lumens, the optical design must be adjusted according to the target to ensure that the brightness and angle match the required requirements.

Conclusion: Whether the beam angle of a high-power LED simulated lumen is uniform depends on the optical design. Symmetrical structures achieve uniform beam angles, while asymmetrical structures bias the beam angle in a specific direction. In actual applications, the appropriate design needs to be selected according to the scenario.

Answer 2

High-power LED simulated lumens primarily involve the application of high-power, high-brightness LED lamp beads. Their rated current typically exceeds 20mA, and their power ranges from 0.25W to 100W. Brightness is measured in lumens (lm). High-power LEDs primarily utilize simulated lumen lamp beads and offer advantages such as energy efficiency, long lifespan, fast response time, safety, low voltage, and excellent weather resistance. Their luminous efficacy can reach over 75lm/W, significantly reducing power consumption compared to incandescent lamps of equivalent brightness, with a lifespan of 50,000 to 100,000 hours.

In applications, attention must be paid to heat dissipation, electrostatic protection, and soldering processes to ensure stable product performance. High-power LEDs are widely used in outdoor lighting, indoor lighting, automotive lighting, display screens, and other fields, and are a key development direction in modern lighting technology.

Answer 3

The beam angle of high-power simulated lumen (simulated lumen) LED beads isn't absolutely uniform, but symmetry is sought in their design. A detailed analysis is as follows:

Definition of beam angle: The beam angle (or half-power angle) is the angle (2θ₁/₂) at which the light intensity in the direction normal to the light source's center drops to half its axial value. For example, a 3W simulated lumen LED has a beam angle of 120°, indicating that its light intensity decays evenly within a 60° radius on either side of the normal, forming a symmetrical light spot.

Design symmetry: Most simulated lumen LEDs use a circular light-emitting surface and a uniform packaging structure to ensure symmetrical light intensity distribution across the viewing angle. For example, a 3W purple light bead has a beam angle of 120°, and its intensity-angle curve is symmetrical on both sides of the normal, indicating a uniform beam angle.

Practical application differences: Imperfections in the packaging process (such as chip tilt or uneven packaging material) may cause slight deviations in the actual beam angle. However, high-quality products minimize such errors through rigorous calibration.