Definition

1. Noun:
   • A projection device, a projector: A device that projects images, slides, or films onto a screen or wall. This is the primary and most common meaning.
   • A magic lantern: An early type of image projector using pictures on sheets of glass, often considered a historical precursor to modern projectors.

Usage Examples

• Noun:
  • Giáo viên sử dụng đèn chiếu để trình bày bài giảng. (The teacher uses a projector to present the lesson.)
  • Bảo tàng trưng bày một chiếc đèn chiếu cổ từ thế kỷ 19. (The museum displays an old magic lantern from the 19th century.)
  • Anh ấy đang chuẩn bị đèn chiếu cho buổi thuyết trình. (He is setting up the projector for the presentation.)

Advanced Usage

• The term "đèn chiếu" is often used in educational and professional contexts to refer to modern digital projectors (e.g., , ), though it retains its historical connotation.
• In compound phrases, it specifies the type of material being projected, as seen in the reference phrase "phim đèn chiếu" (projector film, slides).

Variants and Related Words

• Máy chiếu (projector): A more modern and common term for a projector, often used interchangeably with "đèn chiếu" today.
• Đèn chiếu slide (slide projector): A specific type of projector for displaying photographic slides.
• Đèn chiếu phim (film projector): A projector used for showing motion picture films.
• Đèn chiếu vật thể (document camera/visualizer): A device that projects images of physical objects or documents.

Synonyms

• Projector: The direct and most common English equivalent.
• Magic lantern: The historical equivalent for early projection devices.
• Overhead projector (OHP): A specific type of projector that projects transparencies.

Related Phrases

• Bật/tắt đèn chiếu: To turn on/off the projector.
  • Xin hãy tắt đèn chiếu khi kết thúc. (Please turn off the projector when finished.)
• Màn hình chiếu: Projection screen.
  • Hình ảnh từ đèn chiếu hiện lên màn hình chiếu. (The image from the projector appears on the projection screen.)

Notes on Usage

• While "đèn chiếu" literally translates to "projection lamp," it functions as a noun meaning the entire projection device.
• In contemporary Vietnamese, "máy chiếu" is frequently used, but "đèn chiếu" remains perfectly understandable and correct, especially in formal or descriptive contexts. The reference phrase "phim đèn chiếu" demonstrates its use in forming specific compound terms.

1. Magic lantern, projector
   • Phim đèn chiếu
     Film for projector, slides, transparencies