照射：emit, irradiate

可視光を大入射角で照射可能な照明装置

ChatGPT:

How about:

• "An illumination device capable of irradiating visible light at a large incident angle."
• "An illumination device that can irradiate visible light at a large angle of incidence."
• "An illumination device capable of emitting visible light at a high incidence angle."

Would you like a more specific phrasing depending on the context?

あなた:

So, "irradiate" can be used as a synonym for "emit"?

ChatGPT:

"Irradiate" and "emit" are similar but not always interchangeable.

• "Emit" simply means to release or give off something (light, heat, sound, etc.).
  • Example: The LED emits blue light.
• "Irradiate" typically means to expose something to radiation (including light) or to direct radiation toward an object.
  • Example: The device irradiates the sample with ultraviolet light.

In your sentence, "irradiate" works well because it implies that the illumination device is directing light at a surface or an area. However, "emit" could also be acceptable if the focus is on the device producing the light rather than directing it.

Would you like a phrasing that avoids any potential confusion?