Precision Approach Path Indicator with Precise Demarcation between Colors

• Main Authors: JANG IN SEOK, JEON SIE WOOK, SA GI DONG
• Format: Patent
• Language: English; Korean
• Published: 26.06.2023
• Subjects: AIRCRAFT; AVIATION; BLASTING; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TRANSPORTING; WEAPONS

Disclosed is an entry angle indicator light which precisely demarcates boundaries between colors, while minimizing degradation of light output or efficiency. According to one aspect of the present embodiment, provided is the entry angle indicator light comprising: a first light source unit which outputs light of a first color; a second light source unit which is spaced apart from the first light source unit at a predetermined distance and outputs light of a second color; a first reflector unit which reflects the light output from the first light source unit; a second reflector unit which has a reflective surface facing a reflective surface of the first reflector unit to block a portion of the light output from the second light source unit, while reflecting only a portion of the light reflected from the first reflector unit; a lens which adjusts the width of the light of the second color passed through the second reflector unit and the light of the first color reflected from the second reflector unit; and a collimator which converts the light passing through the lens into parallel light. 색상 간 경계를 정밀하게 구분한 진입각 지시등을 개시한다. 본 실시예의 일 측면에 의하면, 제1 색상의 광을 출력하는 제1 광원부와 상기 제1 광원부와 기 설정된 거리만큼 떨어져 제2 색상의 광을 출력하는 제2 광원부와 상기 제1 광원부에서 출력된 광을 반사시키는 제1 반사부와 상기 제1 반사부의 반사면을 바라보는 방향으로 반사면을 구비하여, 제2 광원부에서 출력된 광 일부를 블록(Block)시키는 동시에, 상기 제1 반사부에서 반사된 광 일부만을 반사시키는 제2 반사부와 상기 제2 반사부를 지난 제2 색상의 광과 상기 제2 반사부에서 반사된 제1 색상의 광의 폭을 조정하는 렌즈 및 상기 렌즈를 거친 광을 평행광으로 변환시키는 콜리메이터를 포함하는 것을 특징으로 하는 진입각 지시등을 제공한다.