Abstract:
본 발명은 부경 외곽에 형성된 환형 거울과 주경으로 정렬 광학계를 구성하여 대구경 반사 망원경의 전체 광경로에 대한 광학적 정렬상태를 점검한다. 상기 환형 거울에서 반사된 광선의 광파면과 주경의 특정 대역 표면형상과 일치하도록 널 시스템으로 설계한다. 이와 같은 널 정렬 시스템은 부경 외곽에 환형의 소형 널 반사경을 사용하므로 전체적인 무게가 가벼울 뿐 아니라 외형도 줄어드는 장점이 있다. 대구경 반사 망원경, 광학 정렬, 널 광학계
Abstract:
PURPOSE: A null lens optical system is provided to be easy to fabricate and to arrange an optical system when measuring a hyperboloid by making a surface receiving a ray of light flat. CONSTITUTION: Parallel rays of light from an interferometer are incident on an imaging lens(30). A field lens(31) makes an image of the imaging lens(30) formed on the hyperboloid of the object. A surface of the imaging lens on which the parallel rays of light are incident has a planed surface, and an opposite surface has a convex surface. A surface of the field lens on which the image of the imaging lens is incident has a concave surface, and an opposite surface has a convex surface. The imaging lens(30) and the field lens(31) are arranged so that a light axis(32) of the imaging lens(30) is identical to that of the field lens(31).
Abstract:
본 발명은 간섭계를 사용하여 반사경 또는 렌즈 곡면의 형상을 비접촉식으로 측정하는 널 렌즈 광학계에 관한 것으로서, 특히 측정 대상 타원면에 광선을 2번 반사하게 함으로써 곡면의 형상 측정을 용이하도록 한 오목 타원면 거울 형상 측정용 널 렌즈 광학계에 관한 것이다. 본 발명인 오목 타원면 거울 형상 측정용 널 렌즈 광학계는 간섭계로부터 나오는 광선의 초점이 맺히는 부분에 있는 환형 거울과, 상기 환형 거울의 중심을 통과한 상기 광선을 측정 대상 타원면에 맺히게 하는 렌즈로 구성되고, 상기 환형 거울은 양면이 평면이고, 상기 렌즈와 대향하는 상기 환형 거울의 면이 반사 코팅된 것이고, 상기 렌즈의 양면은 오목한 구면인 것으로 구성된다. 본 발명은 제작 및 형상 측정이 용이하며, 타원면 측정시 광학계의 정렬을 용이하게 한다.
Abstract:
In a method for acquiring and processing an omnidirectional panorama image at a high update rate, each of first to fourth wide viewing angle sensors (10-1, 10-2, 10-3, 10-4), which covers each of four 90°sections divided from a 360° omnidirectional section, acquires six sectional images (1, 2, 3, 4, 5, 6) divided from a 95° section, and applies a weighting function to the six sectional images (1, 2, 3, 4, 5, 6) to convert the six sectional images (1, 2, 3, 4, 5, 6) into section continuous images (1-1, 1-2, 1-3, 1-4, 1-5, 1-6) without overlap sections through re-matching. Next, the weighting function is applied to sections overlapped among a total of four section continuous images to create a 360° panorama image (C) having no overlapped sections through the re-matching. Therefore, according to a scanning optical system (1) of the present embodiment, a higher-resolution image can be acquired at a higher rate in a simple structure when being compared with a scheme that a rotating device or a planar detector is used together with a sensor.
Abstract:
PURPOSE: An infrared ray optical system for an infrared camera is provided to differently control light intensity transferred to an image sensor of front monitoring equipment according to each viewing direction of an image. CONSTITUTION: An image is imaged on the field stop location between a most back side lens(10) of an object unit and a most front side lens(20) of an imaging unit. A viewing direction transmission ratio control filter(30) reduce the quantity of light transferred to an image sensor of front monitoring equipment to desire level according to viewing direction of an image. An infrared ray optical system for an infrared camera comprises a sunlight filter reducing the quantity of light of a specific wavelength band.
Abstract:
PURPOSE: A null lens system for measuring shape of an elliptic plane in a concave mirror is provided to easily measure a shape of a curved surface by reflecting light on an elliptic plane twice. CONSTITUTION: An interferometer(44) outputs a light(45). A ring shape mirror(40) is positioned at a part in which a focus of the light(45) from the interferometer(44) is formed. A lens(41) is passed through the light(45) which passed through a center of the ring shape mirror(40). The light(45) which passed through the lens(41) reflects from a measuring object-elliptic plane(42). The light of the interferometer(44) uses a light of a curved surface. A center of the ring shape mirror(45) is located at a focus of the light outputted by interferometer(44). The light passes through the lens(41) and reflects from the measuring object elliptic plane(42). The light reflecting from the measuring object elliptic plane(42) passes through the lens(41) again. The reflected light(45) passes through the lens(41) and focuses at the center of the ring shape mirror(40).
Abstract:
A surface comparison apparatus for measuring surface characteristics of a specimen through which visible ray can not be transmitted comprises: a light source generating light having a predetermined wavelength; an optical device changing the light into collimated light; an irradiating unit for irradiating the collimated rays on both surfaces of a specimen which needs to be measured after dividing them into two paths and making the lights, which are reflected on both surfaces, be focused on opposite direction of the incident light after passing through the paths and be interfered with each other; and a display means for displaying the interfered lights which are made by interfering the reflected lights, and thereby, a parallelism or surface characteristics for both surfaces of the specimen can be measured simultaneously through an interference pattern which is obtained by dividing the light into two paths, irradiating the light on both surfaces of the specimen, and reflecting to be interfered with each other, and an interferometer can be constructed and aligned in a simple way.
Abstract:
본 발명은 간섭계를 사용하여 반사경 또는 렌즈 곡면의 형상을 광학적 비접촉식으로 측정하는 널 렌즈 광학계에 관한 것으로서, 특히 광선을 입사 받는 면을 평면으로 함으로써 용이한 제작 및 쌍곡면 형상 측정시 광학계의 용이한 정렬을 가능하게 하는 오목 쌍곡면 거울 형상 측정용 널 렌즈 광학계에 관한 것이다. 본 발명인 오목 쌍곡면 거울 형상 측정용 널 렌즈 광학계는 상기 간섭계로부터 나오는 평행 광선이 입사되는 결상 렌즈와; 상기 결상 렌즈의 상이 입사되어 측정 대상 쌍곡면에 맺히게 하는 필드 렌즈로 구성되며, 상세하게는 상기 결상 렌즈가 상기 평행 광선이 입사하는 면은 평면이고, 상기 면의 반대면은 볼록한 구면으로 구성되고, 상기 결상 렌즈의 상이 입사하는 상기 필드 렌즈의 면은 오목한 구면이고, 상기 면의 반대면은 볼록한 구면으로 구성된다. 본 발명은 쌍곡면 형상 측정시 광학계의 정렬을 용이하게 하며, 상기 결상 렌즈의 두께에 무관한 성능을 지닌 널 렌즈 광학계를 제공한다.
Abstract:
본 발명은 부경 외곽에 형성된 환형 거울과 주경으로 정렬 광학계를 구성하여 대구경 반사 망원경의 전체 광경로에 대한 광학적 정렬상태를 점검한다. 상기 환형 거울에서 반사된 광선의 광파면과 주경의 특정 대역 표면형상과 일치하도록 널 시스템으로 설계한다. 이와 같은 널 정렬 시스템은 부경 외곽에 환형의 소형 널 반사경을 사용하므로 전체적인 무게가 가벼울 뿐 아니라 외형도 줄어드는 장점이 있다. 대구경 반사 망원경, 광학 정렬, 널 광학계
Abstract:
PURPOSE: A surface measuring device and a method thereof are provided to measure parallel on both sides of a sample and the surface simultaneously and simply, and to arrange the optical system easily by irradiating parallel light on both surfaces of the sample and interfering with reflected light. CONSTITUTION: A surface measuring device comprises a light source(11) generating the same wavelength light; an optical unit converting light into a parallel ray; an irradiation and interference unit dividing parallel rays into two paths and irradiating to both sides of a sample(16), and interfering by focusing reflected rays opposite to the parallel rays through two paths; and a display unit(17) displaying interference rays from reflected rays for observation. The parallel on both sides of the sample and relative surfaces are measured conveniently at the same time.