Trong công nghệ chiếu sáng đỉnh cao hay còn gọi là chiếu sáng chuẩn thế giới người ta hay nói tới Công nghệ SDCM hay MacAdam. Với các sản phẩm tới từ China hay do các nước mua hàng từ China thì công nghệ này không được nhắc tới. Chỉ có các sản phẩm cao cấp cho Village, Thiệt thư hay khách sạn 5* mới quan tâm tới.
Vậy Công nghệ chiếu sáng SDCM là gì?
Công nghệ SDCM được viết từ: Standard Deviation Colour Matching (SDCM).
Tạm dịch nó là: Khớp màu lệch chuẩn 🙂
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Ngày nay, có nhiều khách hàng am hiểu công nghệ và họ đặt ra yêu cầu cao về đèn LED chiếu sáng, đặc biệt là công nghệ SDCM. Trong lĩnh vực chiếu sáng đèn LED, nó chia thành hai phần khác nhau:
- SDCM của chip led
- SDCM của toàn bộ đèn.
Vậy nếu bộ đèn LED nào mà có công nghệ SDCM <3 thì gần như TOP đầu thế giới rồi.
SDCM là từ viết tắt của Khớp màu lệch chuẩn. SDCM có cùng nghĩa với “hình elip MacAdam”.
MacAdam Ellipse
Hình elip MacAdam là một hệ thống đo màu sắc. Nó đo lường mức độ biến đổi màu sắc có thể xảy ra xung quanh các trục này, trước khi mắt người phát hiện ra sự thay đổi màu sắc. Sau đó, một loạt các hình elip có thể được vẽ xung quanh bất kỳ màu mục tiêu nào và bất kỳ đèn nhất định nào càng gần mục tiêu thì độ lệch màu càng ít xảy ra khi các đèn này được đặt cạnh nhau trong một hệ thống lắp đặt.
Khoảng cách từ điểm đích trong mỗi hình elip được đo bằng SDCM. SDCM 1 bậc có nghĩa là không có sự khác biệt màu sắc giữa các chip LED, 2-3 SDCM có nghĩa là hầu như không có bất kỳ sự khác biệt màu sắc nào có thể nhìn thấy được trong khi SDCM 4 hoặc nhiều hơn có thể dễ dàng nhận thấy. Số lượng SDCM càng thấp, độ chuyển màu càng nhỏ.
Yêu cầu đối với hầu hết các môi trường trong nhà thường là khoảng MacAdam 2-3 SDCM. Đối với hầu hết các ứng dụng bên ngoài, đánh giá MacAdam 5 SDCM là hoàn toàn chấp nhận được.
Các sản phẩm rẻ hơn thường sẽ sử dụng các mô-đun LED có phạm vi MacAdam Ellipses vượt quá bốn, một số cao đến tám. Các đồ đạc sử dụng các mô-đun như vậy cần được sử dụng cẩn thận. Có thể có thương mại chung của các khu vực công nghiệp mà chúng được chấp nhận, nhưng bất kỳ yêu cầu nào về độ nhạy màu sẽ loại trừ chúng.
Tại sao SDCM lại quan trọng?
Sự nhất quán về màu sắc hoặc tính nhất quán về sắc độ của nguồn sáng là rất quan trọng bởi vì nếu bạn có nhiều đèn ở gần nhau thì sự khác biệt về màu sắc sẽ dễ nhận thấy và phản chiếu ra môi trường xung quanh. Tính đồng nhất sẽ không xuất hiện, điều này có thể tạo ra giải pháp chiếu sáng không mong muốn.
Đây là hình ảnh sẽ nhìn thấy với các đèn rẻ tiền ở China giá rẻ sau thời gian 1 năm dùng nó.
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