Optical system design for wide-angle airborne mapping camera with diffractive optical element

Niu, Haijun; Zhang, Jian; Yan, Aqi; Leng, Hanbing; Fei, Jia-qi; Wu, Dengshan; Cao, Jianzhong

doi:10.1117/12.2085042

Cited by 4 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PFZPs are commonly favoured in various applications because of their higher diffraction efficiency compared to amplitude-type diffractive lenses. These applications encompass visible to longwave infrared cameras [7,8,[44][45][46][47][48], wide-angle imagers [5], conformal optical systems [9,15,49] compound eyes [48][49][50][51][52], spectral imaging and spectrometers [17,[49][50][51][52][53][54][55]. This makes PFZPs a viable alternative to traditional refractive lenses and there is significant potential for further research and exploration of phase diffractive optical elements and their applications, suggesting that this field can continue to expand and advance.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…This is primarily because these systems can be designed with a single optical lens. Through proper design, DOEs are capable of mitigating optical aberrations using only one optical element [7][8][9][10][11][12][13][14]. Consequently, the incorporation of DOEs reduces the number of optical components in a conventional optical system, resulting in reduced camera weight and simplified optical alignment.…”

Section: Introductionmentioning

confidence: 99%

“…DOEs offer even more advantages due to their ability to decrease weight, volume, and enhance the flexibility of optical system designs in military and aerial applications. Given the requirements of aerial applications like Unmanned Aerial Vehicles (UAVs) and cruise missiles, reducing volume and weight is highly beneficial [9,10,[15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Laser seeker design with multi-focal diffractive lens

Ünal

2023

Eng. Res. Express

View full text Add to dashboard Cite

Diffractive optical elements are increasingly favoured due to their ability to provide numerous design freedoms by adjusting the Fresnel regions. The design freedoms make it possible to meet multiple system functions in electro-optical systems simultaneously by using a single optical element. This research introduces a novel laser seeker design with a multi-focal diffractive lens that enhances a laser seeker’s measurement sensitivity and linear measurement range. The development of the multi-focal combined lens, featuring two distinct regions with unique focal lengths, aims to simultaneously fulfill two system functions within the laser seeker. The central region of the lens is intended for adjusting the linear measurement range, while the outer region is utilized to regulate the measurement sensitivity of the seeker. The numerical optical wave propagation method was employed to simulate the behaviour of the laser seeker with a multi-focal diffractive lens, and the combined diffractive lens was compared to an ideal lens in the scope of laser seeker application. The simulation results indicate that the measurement sensitivity of the seeker has been increased between 0° to ±3° angular incidence, and the linear measurement range has been increased from ±18° to ±26°. The findings of this study contribute to the advancement of multi-focal diffractive lenses, which fulfil multiple functions within an electro-optical system concurrently.

show abstract

Section: Theoretical Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Laser seeker design with multi-focal diffractive lens

Ünal

2023

Eng. Res. Express

View full text Add to dashboard Cite

show abstract

“…The optical transmission of the circular symmetry is 0.905, and it is calculated by using Table 1 and equation (18). The by using the (17).…”

Section: 22mentioning

confidence: 99%

Frequency selective diffractive optical element (FSDOE)

Ünal

2023

Window and Dome Technologies and Materials XVII

View full text Add to dashboard Cite

In this research, a novel hybrid lens consisting of a metallic circular symmetry and a diffractive optical element (DOE), whose combined diffraction distribution is very similar to a single DOE, is proposed as an alternative to a hybrid lens consisting of Frequency Selective Surface (FSS) and a DOE. The hybrid lenses are simulated by using optical wave propagation in optical bands and simulated with CST Studio Suite in RF bands. Simulation results are reported for both RF and optical bands. The results indicate that the novel hybrid circularly symmetric lens has almost the same shielding effectiveness (SE) in the RF band compared to the hybrid FSSs. Furthermore, circular symmetry minimizes the spectral components specified in the Abbe-Porter experiment. Consequently, due to the circular symmetry, the combined amplitude distribution of the hybrid lens is close to the amplitude distribution of only one lens. As a result of this research, the proposed hybrid lens will contribute to the development of these structures, entitled FSDOE in this study.

show abstract

Analytical and numerical fresnel models of phase diffractive optical elements for imaging applications

Ünal

2024

Opt Quant Electron

View full text Add to dashboard Cite

Optical system design for wide-angle airborne mapping camera with diffractive optical element

Cited by 4 publications

References 2 publications

Laser seeker design with multi-focal diffractive lens

Laser seeker design with multi-focal diffractive lens

Frequency selective diffractive optical element (FSDOE)

Analytical and numerical fresnel models of phase diffractive optical elements for imaging applications

Contact Info

Product

Resources

About